P. Drexler - The CBELSA/TAPS Collaboration

P. Drexler
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P. Drexler
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The CBELSA/TAPS Collaboration
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Nuclear Experiment (35)
 
High Energy Physics - Experiment (20)
 
Physics - Instrumentation and Detectors (5)
 
Nuclear Theory (4)
 
High Energy Physics - Phenomenology (3)
 
Physics - Fluid Dynamics (1)

Publications Authored By P. Drexler

The double-polarization observable $E$ and the helicity-dependent cross sections $\sigma_{1/2}$ and $\sigma_{3/2}$ have been measured for the first time for single $\pi^{0}$ photoproduction from protons and neutrons bound in the deuteron at the electron accelerator facility MAMI in Mainz, Germany. The experiment used a circularly polarized photon beam and a longitudinally polarized deuterated butanol target. The reaction products, recoil nucleons and decay photons from the $\pi^0$ meson were detected with the Crystal Ball and TAPS electromagnetic calorimeters. Read More

Precise helicity-dependent cross sections and the double-polarization observable $E$ were measured for $\eta$ photoproduction from quasi-free protons and neutrons bound in the deuteron. The $\eta\rightarrow 2\gamma$ and $\eta\rightarrow 3\pi^0\rightarrow 6\gamma$ decay modes were used to optimize the statistical quality of the data and to estimate systematic uncertainties. The measurement used the A2 detector setup at the tagged photon beam of the electron accelerator MAMI in Mainz. Read More

The double polarization observable $E$ and the helicity dependent cross sections $\sigma_{1/2}$ and $\sigma_{3/2}$ were measured for $\eta$ photoproduction from quasi-free protons and neutrons. The circularly polarized tagged photon beam of the A2 experiment at the Mainz MAMI accelerator was used in combination with a longitudinally polarized deuterated butanol target. The almost $4\pi$ detector setup of the Crystal Ball and TAPS is ideally suited to detect the recoil nucleons and the decay photons from $\eta\rightarrow 2\gamma$ and $\eta\rightarrow 3\pi^0$. Read More

The Dalitz decay pi^0 -> e^+e^-gamma has been measured in the gamma p -> pi^0 p reaction with the A2 tagged-photon facility at the Mainz Microtron, MAMI. The value obtained for the slope parameter of the pi^0 electromagnetic transition form factor, a_pi = 0.030+/-0. Read More

2016Oct
Authors: PANDA Collaboration, B. Singh, W. Erni, B. Krusche, M. Steinacher, N. Walford, H. Liu, Z. Liu, B. Liu, X. Shen, C. Wang, J. Zhao, M. Albrecht, T. Erlen, M. Fink, F. H. Heinsius, T. Held, T. Holtmann, S. Jasper, I. Keshk, H. Koch, B. Kopf, M. Kuhlmann, M. Kümmel, S. Leiber, M. Mikirtychyants, P. Musiol, A. Mustafa, M. Pelizäus, J. Pychy, M. Richter, C. Schnier, T. Schröder, C. Sowa, M. Steinke, T. Triffterer, U. Wiedner, M. Ball, R. Beck, C. Hammann, B. Ketzer, M. Kube, P. Mahlberg, M. Rossbach, C. Schmidt, R. Schmitz, U. Thoma, M. Urban, D. Walther, C. Wendel, A. Wilson, A. Bianconi, M. Bragadireanu, M. Caprini, D. Pantea, B. Patel, W. Czyzycki, M. Domagala, G. Filo, J. Jaworowski, M. Krawczyk, E. Lisowski, F. Lisowski, M. Michałek, P. Poznański, J. Płażek, K. Korcyl, A. Kozela, P. Kulessa, P. Lebiedowicz, K. Pysz, W. Schäfer, A. Szczurek, T. Fiutowski, M. Idzik, B. Mindur, D. Przyborowski, K. Swientek, J. Biernat, B. Kamys, S. Kistryn, G. Korcyl, W. Krzemien, A. Magiera, P. Moskal, A. Pyszniak, Z. Rudy, P. Salabura, J. Smyrski, P. Strzempek, A. Wronska, I. Augustin, R. Böhm, I. Lehmann, D. Nicmorus Marinescu, L. Schmitt, V. Varentsov, M. Al-Turany, A. Belias, H. Deppe, N. Divani Veis, R. Dzhygadlo, A. Ehret, H. Flemming, A. Gerhardt, K. Götzen, A. Gromliuk, L. Gruber, R. Karabowicz, R. Kliemt, M. Krebs, U. Kurilla, D. Lehmann, S. Löchner, J. Lühning, U. Lynen, H. Orth, M. Patsyuk, K. Peters, T. Saito, G. Schepers, C. J. Schmidt, C. Schwarz, J. Schwiening, A. Täschner, M. Traxler, C. Ugur, B. Voss, P. Wieczorek, A. Wilms, M. Zühlsdorf, V. Abazov, G. Alexeev, V. A. Arefiev, V. Astakhov, M. Yu. Barabanov, B. V. Batyunya, Y. Davydov, V. Kh. Dodokhov, A. Efremov, A. Fechtchenko, A. G. Fedunov, A. Galoyan, S. Grigoryan, E. K. Koshurnikov, Y. Yu. Lobanov, V. I. Lobanov, A. F. Makarov, L. V. Malinina, V. Malyshev, A. G. Olshevskiy, E. Perevalova, A. A. Piskun, T. Pocheptsov, G. Pontecorvo, V. Rodionov, Y. Rogov, R. Salmin, A. Samartsev, M. G. Sapozhnikov, G. Shabratova, N. B. Skachkov, A. N. Skachkova, E. A. Strokovsky, M. Suleimanov, R. Teshev, V. Tokmenin, V. Uzhinsky, A. Vodopianov, S. A. Zaporozhets, N. I. Zhuravlev, A. Zinchenko, A. G. Zorin, D. Branford, D. Glazier, D. Watts, M. Böhm, A. Britting, W. Eyrich, A. Lehmann, M. Pfaffinger, F. Uhlig, S. Dobbs, K. Seth, A. Tomaradze, T. Xiao, D. Bettoni, V. Carassiti, A. Cotta Ramusino, P. Dalpiaz, A. Drago, E. Fioravanti, I. Garzia, M. Savrie, V. Akishina, I. Kisel, G. Kozlov, M. Pugach, M. Zyzak, P. Gianotti, C. Guaraldo, V. Lucherini, A. Bersani, G. Bracco, M. Macri, R. F. Parodi, K. Biguenko, K. T. Brinkmann, V. Di Pietro, S. Diehl, V. Dormenev, P. Drexler, M. Düren, E. Etzelmüller, M. Galuska, E. Gutz, C. Hahn, A. Hayrapetyan, M. Kesselkaul, W. Kühn, T. Kuske, J. S. Lange, Y. Liang, V. Metag, M. Moritz, M. Nanova, S. Nazarenko, R. Novotny, T. Quagli, S. Reiter, A. Riccardi, J. Rieke, C. Rosenbaum, M. Schmidt, R. Schnell, H. Stenzel, U. Thöring, T. Ullrich, M. N. Wagner, T. Wasem, B. Wohlfahrt, H. G. Zaunick, E. Tomasi-Gustafsson, D. Ireland, G. Rosner, B. Seitz, P. N. Deepak, A. Kulkarni, A. Apostolou, M. Babai, M. Kavatsyuk, P. J. Lemmens, M. Lindemulder, H. Loehner, J. Messchendorp, P. Schakel, H. Smit, M. Tiemens, J. C. van der Weele, R. Veenstra, S. Vejdani, K. Dutta, K. Kalita, A. Kumar, A. Roy, H. Sohlbach, M. Bai, L. Bianchi, M. Büscher, L. Cao, A. Cebulla, R. Dosdall, A. Gillitzer, F. Goldenbaum, D. Grunwald, A. Herten, Q. Hu, G. Kemmerling, H. Kleines, A. Lai, A. Lehrach, R. Nellen, H. Ohm, S. Orfanitski, D. Prasuhn, E. Prencipe, J. Pütz, J. Ritman, S. Schadmand, T. Sefzick, V. Serdyuk, G. Sterzenbach, T. Stockmanns, P. Wintz, P. Wüstner, H. Xu, A. Zambanini, S. Li, Z. Li, Z. Sun, H. Xu, V. Rigato, L. Isaksson, P. Achenbach, O. Corell, A. Denig, M. Distler, M. Hoek, A. Karavdina, W. Lauth, Z. Liu, H. Merkel, U. Müller, J. Pochodzalla, S. Sanchez, S. Schlimme, C. Sfienti, M. Thiel, H. Ahmadi, S. Ahmed, S. Bleser, L. Capozza, M. Cardinali, A. Dbeyssi, M. Deiseroth, F. Feldbauer, M. Fritsch, B. Fröhlich, D. Kang, D. Khaneft, R. Klasen, H. H. Leithoff, D. Lin, F. Maas, S. Maldaner, M. Martínez, M. Michel, M. C. Mora Espí, C. Morales Morales, C. Motzko, F. Nerling, O. Noll, S. Pflüger, A. Pitka, D. Rodríguez Piñeiro, A. Sanchez-Lorente, M. Steinen, R. Valente, T. Weber, M. Zambrana, I. Zimmermann, A. Fedorov, M. Korjik, O. Missevitch, A. Boukharov, O. Malyshev, I. Marishev, V. Balanutsa, P. Balanutsa, V. Chernetsky, A. Demekhin, A. Dolgolenko, P. Fedorets, A. Gerasimov, V. Goryachev, V. Chandratre, V. Datar, D. Dutta, V. Jha, H. Kumawat, A. K. Mohanty, A. Parmar, B. Roy, G. Sonika, C. Fritzsch, S. Grieser, A. K. Hergemöller, B. Hetz, N. Hüsken, A. Khoukaz, J. P. Wessels, K. Khosonthongkee, C. Kobdaj, A. Limphirat, P. Srisawad, Y. Yan, A. Yu. Barnyakov, M. Barnyakov, K. Beloborodov, V. E. Blinov, V. S. Bobrovnikov, I. A. Kuyanov, K. Martin, A. P. Onuchin, S. Serednyakov, A. Sokolov, Y. Tikhonov, A. E. Blinov, S. Kononov, E. A. Kravchenko, E. Atomssa, R. Kunne, B. Ma, D. Marchand, B. Ramstein, J. van de Wiele, Y. Wang, G. Boca, S. Costanza, P. Genova, P. Montagna, A. Rotondi, V. Abramov, N. Belikov, S. Bukreeva, A. Davidenko, A. Derevschikov, Y. Goncharenko, V. Grishin, V. Kachanov, V. Kormilitsin, A. Levin, Y. Melnik, N. Minaev, V. Mochalov, D. Morozov, L. Nogach, S. Poslavskiy, A. Ryazantsev, S. Ryzhikov, P. Semenov, I. Shein, A. Uzunian, A. Vasiliev, A. Yakutin, U. Roy, B. Yabsley, S. Belostotski, G. Gavrilov, A. Izotov, S. Manaenkov, O. Miklukho, D. Veretennikov, A. Zhdanov, T. Bäck, B. Cederwall, K. Makonyi, M. Preston, P. E. Tegner, D. Wölbing, A. K. Rai, S. Godre, D. Calvo, S. Coli, P. De Remigis, A. Filippi, G. Giraudo, S. Lusso, G. Mazza, M. Mignone, A. Rivetti, R. Wheadon, A. Amoroso, M. P. Bussa, L. Busso, F. De Mori, M. Destefanis, L. Fava, L. Ferrero, M. Greco, J. Hu, L. Lavezzi, M. Maggiora, G. Maniscalco, S. Marcello, S. Sosio, S. Spataro, F. Balestra, F. Iazzi, R. Introzzi, A. Lavagno, J. Olave, R. Birsa, F. Bradamante, A. Bressan, A. Martin, H. Calen, W. Ikegami Andersson, T. Johansson, A. Kupsc, P. Marciniewski, M. Papenbrock, J. Pettersson, K. Schönning, M. Wolke, B. Galnander, J. Diaz, V. Pothodi Chackara, A. Chlopik, G. Kesik, D. Melnychuk, B. Slowinski, A. Trzcinski, M. Wojciechowski, S. Wronka, B. Zwieglinski, P. Bühler, J. Marton, D. Steinschaden, K. Suzuki, E. Widmann, J. Zmeskal, K. M. Semenov-Tian-Shansky

The exclusive charmonium production process in $\bar{p}p$ annihilation with an associated $\pi^0$ meson $\bar{p}p\to J/\psi\pi^0$ is studied in the framework of QCD collinear factorization. The feasibility of measuring this reaction through the $J/\psi\to e^+e^-$ decay channel with the PANDA (AntiProton ANnihilation at DArmstadt) experiment is investigated. Simulations on signal reconstruction efficiency as well as the background rejection from various sources including the $\bar{p}p\to\pi^+\pi^-\pi^0$ and $\bar{p}p\to J/\psi\pi^0\pi^0$ reactions are performed with PandaRoot, the simulation and analysis software framework of the PANDA experiment. Read More

The Dalitz decays eta -> e^+e^-g and omega -> pi^0 e^+e^- have been measured in the g p -> eta p and g p -> omega p reactions, respectively, with the A2 tagged-photon facility at the Mainz Microtron, MAMI. The value obtained for the slope parameter of the electromagnetic transition form factor of eta, Lambda^{-2}_eta=(1.97+/-0. Read More

High statistics measurements of the photon asymmetry $\mathrm{\Sigma}$ for the $\overrightarrow{\gamma}$p$\rightarrow\pi^{0}$p reaction have been made in the center of mass energy range W=1214-1450 MeV. The data were measured with the MAMI A2 real photon beam and Crystal Ball/TAPS detector systems in Mainz, Germany. The results significantly improve the existing world data and are shown to be in good agreement with previous measurements, and with the MAID, SAID, and Bonn-Gatchina predictions. Read More

2016Jun
Authors: PANDA Collaboration, B. Singh, W. Erni, B. Krusche, M. Steinacher, N. Walford, B. Liu, H. Liu, Z. Liu, X. Shen, C. Wang, J. Zhao, M. Albrecht, T. Erlen, M. Fink, F. Heinsius, T. Held, T. Holtmann, S. Jasper, I. Keshk, H. Koch, B. Kopf, M. Kuhlmann, M. Kümmel, S. Leiber, M. Mikirtychyants, P. Musiol, A. Mustafa, M. Pelizäus, J. Pychy, M. Richter, C. Schnier, T. Schröder, C. Sowa, M. Steinke, T. Triffterer, U. Wiedner, M. Ball, R. Beck, C. Hammann, B. Ketzer, M. Kube, P. Mahlberg, M. Rossbach, C. Schmidt, R. Schmitz, U. Thoma, M. Urban, D. Walther, C. Wendel, A. Wilson, A. Bianconi, M. Bragadireanu, M. Caprini, D. Pantea, B. Patel, W. Czyzycki, M. Domagala, G. Filo, J. Jaworowski, M. Krawczyk, F. Lisowski, E. Lisowski, M. Michałek, P. Poznański, J. Płażek, K. Korcyl, A. Kozela, P. Kulessa, P. Lebiedowicz, K. Pysz, W. Schäfer, A. Szczurek, T. Fiutowski, M. Idzik, B. Mindur, D. Przyborowski, K. Swientek, J. Biernat, B. Kamys, S. Kistryn, G. Korcyl, W. Krzemien, A. Magiera, P. Moskal, A. Pyszniak, Z. Rudy, P. Salabura, J. Smyrski, P. Strzempek, A. Wronska, I. Augustin, R. Böhm, I. Lehmann, D. Nicmorus Marinescu, L. Schmitt, V. Varentsov, M. Al-Turany, A. Belias, H. Deppe, R. Dzhygadlo, A. Ehret, H. Flemming, A. Gerhardt, K. Götzen, A. Gromliuk, L. Gruber, R. Karabowicz, R. Kliemt, M. Krebs, U. Kurilla, D. Lehmann, S. Löchner, J. Lühning, U. Lynen, H. Orth, M. Patsyuk, K. Peters, T. Saito, G. Schepers, C. J. Schmidt, C. Schwarz, J. Schwiening, A. Täschner, M. Traxler, C. Ugur, B. Voss, P. Wieczorek, A. Wilms, M. Zühlsdorf, V. Abazov, G. Alexeev, V. A. Arefiev, V. Astakhov, M. Yu. Barabanov, B. V. Batyunya, Y. Davydov, V. Kh. Dodokhov, A. Efremov, A. Fechtchenko, A. G. Fedunov, A. Galoyan, S. Grigoryan, E. K. Koshurnikov, Y. Yu. Lobanov, V. I. Lobanov, A. F. Makarov, L. V. Malinina, V. Malyshev, A. G. Olshevskiy, E. Perevalova, A. A. Piskun, T. Pocheptsov, G. Pontecorvo, V. Rodionov, Y. Rogov, R. Salmin, A. Samartsev, M. G. Sapozhnikov, G. Shabratova, N. B. Skachkov, A. N. Skachkova, E. A. Strokovsky, M. Suleimanov, R. Teshev, V. Tokmenin, V. Uzhinsky, A. Vodopianov, S. A. Zaporozhets, N. I. Zhuravlev, A. G. Zorin, D. Branford, D. Glazier, D. Watts, M. Böhm, A. Britting, W. Eyrich, A. Lehmann, M. Pfaffinger, F. Uhlig, S. Dobbs, K. Seth, A. Tomaradze, T. Xiao, D. Bettoni, V. Carassiti, A. Cotta Ramusino, P. Dalpiaz, A. Drago, E. Fioravanti, I. Garzia, M. Savrie, V. Akishina, I. Kisel, G. Kozlov, M. Pugach, M. Zyzak, P. Gianotti, C. Guaraldo, V. Lucherini, A. Bersani, G. Bracco, M. Macri, R. F. Parodi, K. Biguenko, K. Brinkmann, V. Di Pietro, S. Diehl, V. Dormenev, P. Drexler, M. Düren, E. Etzelmüller, M. Galuska, E. Gutz, C. Hahn, A. Hayrapetyan, M. Kesselkaul, W. Kühn, T. Kuske, J. S. Lange, Y. Liang, V. Metag, M. Nanova, S. Nazarenko, R. Novotny, T. Quagli, S. Reiter, J. Rieke, C. Rosenbaum, M. Schmidt, R. Schnell, H. Stenzel, U. Thöring, M. Ullrich, M. N. Wagner, T. Wasem, B. Wohlfahrt, H. Zaunick, D. Ireland, G. Rosner, B. Seitz, P. N. Deepak, A. Kulkarni, A. Apostolou, M. Babai, M. Kavatsyuk, P. J. Lemmens, M. Lindemulder, H. Loehner, J. Messchendorp, P. Schakel, H. Smit, M. Tiemens, J. C. van der Weele, R. Veenstra, S. Vejdani, K. Dutta, K. Kalita, A. Kumar, A. Roy, H. Sohlbach, M. Bai, L. Bianchi, M. Büscher, L. Cao, A. Cebulla, R. Dosdall, A. Gillitzer, F. Goldenbaum, D. Grunwald, A. Herten, Q. Hu, G. Kemmerling, H. Kleines, A. Lehrach, R. Nellen, H. Ohm, S. Orfanitski, D. Prasuhn, E. Prencipe, J. Pütz, J. Ritman, S. Schadmand, T. Sefzick, V. Serdyuk, G. Sterzenbach, T. Stockmanns, P. Wintz, P. Wüstner, H. Xu, A. Zambanini, S. Li, Z. Li, Z. Sun, H. Xu, V. Rigato, L. Isaksson, P. Achenbach, O. Corell, A. Denig, M. Distler, M. Hoek, A. Karavdina, W. Lauth, Z. Liu, H. Merkel, U. Müller, J. Pochodzalla, S. Sanchez, S. Schlimme, C. Sfienti, M. Thiel, H. Ahmadi, S. Ahmed, S. Bleser, L. Capozza, M. Cardinali, A. Dbeyssi, M. Deiseroth, F. Feldbauer, M. Fritsch, B. Fröhlich, P. Jasinski, D. Kang, D. Khaneft, R. Klasen, H. H. Leithoff, D. Lin, F. Maas, S. Maldaner, M. Marta, M. Michel, M. C. Mora Espí, C. Morales Morales, C. Motzko, F. Nerling, O. Noll, S. Pflüger, A. Pitka, D. Rodríguez Piñeiro, A. Sanchez-Lorente, M. Steinen, R. Valente, T. Weber, M. Zambrana, I. Zimmermann, A. Fedorov, M. Korjik, O. Missevitch, A. Boukharov, O. Malyshev, I. Marishev, V. Balanutsa, P. Balanutsa, V. Chernetsky, A. Demekhin, A. Dolgolenko, P. Fedorets, A. Gerasimov, V. Goryachev, V. Chandratre, V. Datar, D. Dutta, V. Jha, H. Kumawat, A. K. Mohanty, A. Parmar, B. Roy, G. Sonika, C. Fritzsch, S. Grieser, A. Hergemöller, B. Hetz, N. Hüsken, A. Khoukaz, J. P. Wessels, K. Khosonthongkee, C. Kobdaj, A. Limphirat, P. Srisawad, Y. Yan, M. Barnyakov, A. Yu. Barnyakov, K. Beloborodov, A. E. Blinov, V. E. Blinov, V. S. Bobrovnikov, S. Kononov, E. A. Kravchenko, I. A. Kuyanov, K. Martin, A. P. Onuchin, S. Serednyakov, A. Sokolov, Y. Tikhonov, E. Atomssa, R. Kunne, D. Marchand, B. Ramstein, J. van de Wiele, Y. Wang, G. Boca, S. Costanza, P. Genova, P. Montagna, A. Rotondi, V. Abramov, N. Belikov, S. Bukreeva, A. Davidenko, A. Derevschikov, Y. Goncharenko, V. Grishin, V. Kachanov, V. Kormilitsin, A. Levin, Y. Melnik, N. Minaev, V. Mochalov, D. Morozov, L. Nogach, S. Poslavskiy, A. Ryazantsev, S. Ryzhikov, P. Semenov, I. Shein, A. Uzunian, A. Vasiliev, A. Yakutin, E. Tomasi-Gustafsson, U. Roy, B. Yabsley, S. Belostotski, G. Gavrilov, A. Izotov, S. Manaenkov, O. Miklukho, D. Veretennikov, A. Zhdanov, K. Makonyi, M. Preston, P. Tegner, D. Wölbing, T. Bäck, B. Cederwall, A. K. Rai, S. Godre, D. Calvo, S. Coli, P. De Remigis, A. Filippi, G. Giraudo, S. Lusso, G. Mazza, M. Mignone, A. Rivetti, R. Wheadon, F. Balestra, F. Iazzi, R. Introzzi, A. Lavagno, J. Olave, A. Amoroso, M. P. Bussa, L. Busso, F. De Mori, M. Destefanis, L. Fava, L. Ferrero, M. Greco, J. Hu, L. Lavezzi, M. Maggiora, G. Maniscalco, S. Marcello, S. Sosio, S. Spataro, R. Birsa, F. Bradamante, A. Bressan, A. Martin, H. Calen, W. Ikegami Andersson, T. Johansson, A. Kupsc, P. Marciniewski, M. Papenbrock, J. Pettersson, K. Schönning, M. Wolke, B. Galnander, J. Diaz, V. Pothodi Chackara, A. Chlopik, G. Kesik, D. Melnychuk, B. Slowinski, A. Trzcinski, M. Wojciechowski, S. Wronka, B. Zwieglinski, P. Bühler, J. Marton, D. Steinschaden, K. Suzuki, E. Widmann, J. Zmeskal

Simulation results for future measurements of electromagnetic proton form factors at \PANDA (FAIR) within the PandaRoot software framework are reported. The statistical precision with which the proton form factors can be determined is estimated. The signal channel $\bar p p \to e^+ e^-$ is studied on the basis of two different but consistent procedures. Read More

Total cross sections, angular distributions, and invariant-mass distributions have been measured for the photoproduction of $\pi^0\pi^0$ pairs off free protons and off nucleons bound in the deuteron. The experiments were performed at the MAMI accelerator facility in Mainz using the Glasgow photon tagging spectrometer and the Crystal Ball/TAPS detector. The accelerator delivered electron beams of 1508 and 1557~MeV, which produced bremsstrahlung in thin radiator foils. Read More

Photoproduction of $\pi\eta$-pairs from nucleons has been investigated from threshold up to incident photon energies of $\approx$~1.4~GeV. The quasi-free reactions $\gamma p\rightarrow p\pi^0\eta$, $\gamma n\rightarrow n\pi^0\eta$, $\gamma p\rightarrow n\pi^+\eta$, and $\gamma n\rightarrow p\pi^-\eta$ were for the first time measured from nucleons bound in the deuteron. Read More

The first measurements of the beam-target-helicity-asymmetries $E$ and $G$ in the photoproduction of $\omega$-mesons off protons at the CBELSA/TAPS experiment are reported. $E$ ($G$) was measured using circularly (linearly) polarised photons and a longitudinally polarised target. $E$ was measured over the photon energy range from close to threshold ($E_\gamma = 1108$~MeV) to $E_\gamma = 2300$~MeV and $G$ at a single energy interval of $1108 < E_\gamma <1300$~MeV. Read More

2014Sep
Authors: PANDA Collaboration, B. P. Singh, W. Erni, I. Keshelashvili, B. Krusche, M. Steinacher %, B. Liu, H. Liu, Z. Liu, X. Shen, C. Wang, J. Zhao %, M. Albrecht, M. Fink, F. H. Heinsius, T. Held, T. Holtmann, H. Koch, B. Kopf, M. Kümmel, G. Kuhl, M. Kuhlmann, M. Leyhe, M. Mikirtychyants, P. Musiol, A. Mustafa, M. Pelizäus, J. Pychy, M. Richter, C. Schnier, T. Schröder, C. Sowa, M. Steinke, T. Triffterer, U. Wiedner, R. Beck, C. Hammann, D. Kaiser, B. Ketzer, M. Kube, P. Mahlberg, M. Rossbach, C. Schmidt, R. Schmitz, U. Thoma, D. Walther, C. Wendel, A. Wilson, A. Bianconi, M. Bragadireanu, M. Caprini, D. Pantea, D. Pietreanu, M. E. Vasile, B. Patel, D. Kaplan, P. Brandys, T. Czyzewski, W. Czyzycki, M. Domagala, M. Hawryluk, G. Filo, M. Krawczyk, D. Kwiatkowski, E. Lisowski, F. Lisowski, T. Fiutowski, M. Idzik, B. Mindur, D. Przyborowski, K. Swientek, B. Czech, S. Kliczewski, K. Korcyl, A. Kozela, P. Kulessa, P. Lebiedowicz, K. Malgorzata, K. Pysz, W. Schäfer, R. Siudak, A. Szczurek, J. Biernat, S. Jowzaee, B. Kamys, S. Kistryn, G. Korcyl, W. Krzemien, A. Magiera, P. Moskal, M. Palka, A. Psyzniak, Z. Rudy, P. Salabura, J. Smyrski, P. Strzempek, A. Wrońska, I. Augustin, I. Lehmann, D. Nicmorus, G. Schepers, L. Schmitt, M. Al-Turany, U. Cahit, L. Capozza, A. Dbeyssi, H. Deppe, R. Dzhygadlo, A. Ehret, H. Flemming, A. Gerhardt, K. Götzen, R. Karabowicz, R. Kliemt, J. Kunkel, U. Kurilla, D. Lehmann, J. Lühning, F. Maas, C. Morales Morales, M. C. Mora Espí, F. Nerling, H. Orth, K. Peters, D. Rodríguez Pineiro, N. Saito, T. Saito, A. Sánchez Lorente, C. J. Schmidt, C. Schwarz, J. Schwiening, M. Traxler, R. Valente, B. Voss, P. Wieczorek, A. Wilms, M. Zühlsdorf, V. M. Abazov, G. Alexeev, A. Arefiev, V. I. Astakhov, M. Yu. Barabanov, B. V. Batyunya, Yu. I. Davydov, V. Kh. Dodokhov, A. A. Efremov, A. G. Fedunov, A. A. Festchenko, A. S. Galoyan, S. Grigoryan, A. Karmokov, E. K. Koshurnikov, V. I. Lobanov, Yu. Yu. Lobanov, A. F. Makarov, L. V. Malinina, V. L. Malyshev, G. A. Mustafaev, A. Olshevskiy, M. A. Pasyuk, E. A. Perevalova, A. A. Piskun, T. A. Pocheptsov, G. Pontecorvo, V. K. Rodionov, Yu. N. Rogov, R. A. Salmin, A. G. Samartsev, M. G. Sapozhnikov, G. S. Shabratova, N. B. Skachkov, A. N. Skachkova, E. A. Strokovsky, M. K. Suleimanov, R. Sh. Teshev, V. V. Tokmenin, V. V. Uzhinsky, A. S. Vodopyanov, S. A. Zaporozhets, N. I. Zhuravlev, A. G. Zorin, D. Branford, D. Glazier, D. Watts, P. Woods, A. Britting, W. Eyrich, A. Lehmann, F. Uhlig, S. Dobbs, K. Seth, A. Tomaradze, T. Xiao, D. Bettoni, V. Carassiti, A. Cotta Ramusino, P. Dalpiaz, A. Drago, E. Fioravanti, I. Garzia, M. Savriè, G. Stancari, V. Akishina, I. Kisel, I. Kulakov, M. Zyzak, R. Arora, T. Bel, A. Gromliuk, G. Kalicy, M. Krebs, M. Patsyuk, M. Zuehlsdorf, N. Bianchi, P. Gianotti, C. Guaraldo, V. Lucherini, E. Pace, A. Bersani, G. Bracco, M. Macri, R. F. Parodi, S. Bianco, D. Bremer, K. T. Brinkmann, S. Diehl, V. Dormenev, P. Drexler, M. Düren, T. Eissner, E. Etzelmüller, K. Föhl, M. Galuska, T. Gessler, E. Gutz, A. Hayrapetyan, J. Hu, B. Kröck, W. Kühn, T. Kuske, S. Lange, Y. Liang, O. Merle, V. Metag, D. Mülhheim, D. Münchow, M. Nanova, R. Novotny, A. Pitka, T. Quagli, J. Rieke, C. Rosenbaum, R. Schnell, B. Spruck, H. Stenzel, U. Thöring, M. Ullrich, T. Wasem, M. Werner, H. G. Zaunick, D. Ireland, G. Rosner, B. Seitz, P. N. Deepak, A. V. Kulkarni, A. Apostolou, M. Babai, M. Kavatsyuk, P. Lemmens, M. Lindemulder, H. Löhner, J. Messchendorp, P. Schakel, H. Smit, J. C. van der Weele, M. Tiemens, R. Veenstra, S. Vejdani, K. Kalita, D. P. Mohanta, A. Kumar, A. Roy, R. Sahoo, H. Sohlbach, M. Büscher, L. Cao, A. Cebulla, D. Deermann, R. Dosdall, S. Esch, I. Georgadze, A. Gillitzer, A. Goerres, F. Goldenbaum, D. Grunwald, A. Herten, Q. Hu, G. Kemmerling, H. Kleines, V. Kozlov, A. Lehrach, S. Leiber, R. Maier, R. Nellen, H. Ohm, S. Orfanitski, D. Prasuhn, E. Prencipe, J. Ritman, S. Schadmand, J. Schumann, T. Sefzick, V. Serdyuk, G. Sterzenbach, T. Stockmanns, P. Wintz, P. Wüstner, H. Xu, S. Li, Z. Li, Z. Sun, H. Xu, V. Rigato, S. Fissum, K. Hansen, L. Isaksson, M. Lundin, B. Schröder, P. Achenbach, S. Bleser, M. Cardinali, O. Corell, M. Deiseroth, A. Denig, M. Distler, F. Feldbauer, M. Fritsch, P. Jasinski, M. Hoek, D. Kangh, A. Karavdina, W. Lauth, H. Leithoff, H. Merkel, M. Michel, C. Motzko, U. Müller, O. Noll, S. Plueger, J. Pochodzalla, S. Sanchez, S. Schlimme, C. Sfienti, M. Steinen, M. Thiel, T. Weber, M. Zambrana, V. I. Dormenev, A. A. Fedorov, M. V. Korzihik, O. V. Missevitch, P. Balanutsa, V. Balanutsa, V. Chernetsky, A. Demekhin, A. Dolgolenko, P. Fedorets, A. Gerasimov, V. Goryachev, V. Varentsov, A. Boukharov, O. Malyshev, I. Marishev, A. Semenov, I. Konorov, S. Paul, S. Grieser, A. K. Hergemöller, A. Khoukaz, E. Köhler, A. Täschner, J. Wessels, S. Dash, M. Jadhav, S. Kumar, P. Sarin, R. Varma, V. B. Chandratre, V. Datar, D. Dutta, V. Jha, H. Kumawat, A. K. Mohanty, B. Roy, Y. Yan, K. Chinorat, K. Khanchai, L. Ayut, S. Pornrad, A. Y. Barnyakov, A. E. Blinov, V. E. Blinov, V. S. Bobrovnikov, S. A. Kononov, E. A. Kravchenko, I. A. Kuyanov, A. P. Onuchin, A. A. Sokolov, Y. A. Tikhonov, E. Atomssa, T. Hennino, M. Imre, R. Kunne, C. Le Galliard, B. Ma, D. Marchand, S. Ong, B. Ramstein, P. Rosier, E. Tomasi-Gustafsson, J. Van de Wiele, G. Boca, S. Costanza, P. Genova, L. Lavezzi, P. Montagna, A. Rotondi, V. Abramov, N. Belikov, S. Bukreeva, A. Davidenko, A. Derevschikov, Y. Goncharenko, V. Grishin, V. Kachanov, V. Kormilitsin, Y. Melnik, A. Levin, N. Minaev, V. Mochalov, D. Morozov, L. Nogach, S. Poslavskiy, A. Ryazantsev, S. Ryzhikov, P. Semenov, I. Shein, A. Uzunian, A. Vasiliev, A. Yakutin, B. Yabsley, T. Bäck, B. Cederwall, K. Makónyi, P. E. Tegnér, K. M. von Würtemberg, S. Belostotski, G. Gavrilov, A. Izotov, A. Kashchuk, O. Levitskaya, S. Manaenkov, O. Miklukho, Y. Naryshkin, K. Suvorov, D. Veretennikov, A. Zhadanov, A. K. Rai, S. S. Godre, R. Duchat, A. Amoroso, M. P. Bussa, L. Busso, F. De Mori, M. Destefanis, L. Fava, L. Ferrero, M. Greco, M. Maggiora, G. Maniscalco, S. Marcello, S. Sosio, S. Spataro, L. Zotti, D. Calvo, S. Coli, P. De Remigis, A. Filippi, G. Giraudo, S. Lusso, G. Mazza, M. Mingnore, A. Rivetti, R. Wheadon, F. Balestra, F. Iazzi, R. Introzzi, A. Lavagno, H. Younis, R. Birsa, F. Bradamante, A. Bressan, A. Martin, H. Clement, B. Gålnander, L. Caldeira Balkeståhl, H. Calén, K. Fransson, T. Johansson, A. Kupsc, P. Marciniewski, J. Pettersson, K. Schönning, M. Wolke, J. Zlomanczuk, J. Díaz, A. Ortiz, P. C. Vinodkumar, A. Parmar, A. Chlopik, D. Melnychuk, B. Slowinski, A. Trzcinski, M. Wojciechowski, S. Wronka, B. Zwieglinski, P. Bühler, J. Marton, K. Suzuki, E. Widmann, J. Zmeskal, B. Fröhlich, D. Khaneft, D. Lin, I. Zimmermann, K. Semenov-Tian-Shansky

Baryon-to-meson Transition Distribution Amplitudes (TDAs) encoding valuable new information on hadron structure appear as building blocks in the collinear factorized description for several types of hard exclusive reactions. In this paper, we address the possibility of accessing nucleon-to-pion ($\pi N$) TDAs from $\bar{p}p \to e^+e^- \pi^0$ reaction with the future \={P}ANDA detector at the FAIR facility. At high center of mass energy and high invariant mass squared of the lepton pair $q^2$, the amplitude of the signal channel $\bar{p}p \to e^+e^- \pi^0$ admits a QCD factorized description in terms of $\pi N$ TDAs and nucleon Distribution Amplitudes (DAs) in the forward and backward kinematic regimes. Read More

Differential and total cross sections for the quasifree reactions $\gamma p\rightarrow\eta p$ and $\gamma n\rightarrow\eta n$ have been determined at the MAMI-C electron accelerator using a liquid deuterium target. Photons were produced via bremsstrahlung from the 1.5 GeV incident electron beam and energy-tagged with the Glasgow photon tagger. Read More

An experimental study of $\omega$ photoproduction on the proton was conducted by using the Crystal Ball and TAPS multiphoton spectrometers together with the photon tagging facility at the Mainz Microtron MAMI. The $\gamma p\to\omega p$ differential cross sections are measured from threshold to the incident-photon energy $E_\gamma=1.40$ GeV ($W=1. Read More

2014Jul
Affiliations: 1The CBELSA/TAPS Collaboration, 2The CBELSA/TAPS Collaboration, 3The CBELSA/TAPS Collaboration, 4The CBELSA/TAPS Collaboration, 5The CBELSA/TAPS Collaboration, 6The CBELSA/TAPS Collaboration, 7The CBELSA/TAPS Collaboration, 8The CBELSA/TAPS Collaboration, 9The CBELSA/TAPS Collaboration, 10The CBELSA/TAPS Collaboration, 11The CBELSA/TAPS Collaboration, 12The CBELSA/TAPS Collaboration, 13The CBELSA/TAPS Collaboration, 14The CBELSA/TAPS Collaboration, 15The CBELSA/TAPS Collaboration, 16The CBELSA/TAPS Collaboration, 17The CBELSA/TAPS Collaboration, 18The CBELSA/TAPS Collaboration, 19The CBELSA/TAPS Collaboration, 20The CBELSA/TAPS Collaboration, 21The CBELSA/TAPS Collaboration, 22The CBELSA/TAPS Collaboration, 23The CBELSA/TAPS Collaboration, 24The CBELSA/TAPS Collaboration, 25The CBELSA/TAPS Collaboration, 26The CBELSA/TAPS Collaboration, 27The CBELSA/TAPS Collaboration, 28The CBELSA/TAPS Collaboration, 29The CBELSA/TAPS Collaboration, 30The CBELSA/TAPS Collaboration, 31The CBELSA/TAPS Collaboration, 32The CBELSA/TAPS Collaboration, 33The CBELSA/TAPS Collaboration, 34The CBELSA/TAPS Collaboration, 35The CBELSA/TAPS Collaboration, 36The CBELSA/TAPS Collaboration, 37The CBELSA/TAPS Collaboration, 38The CBELSA/TAPS Collaboration, 39The CBELSA/TAPS Collaboration, 40The CBELSA/TAPS Collaboration, 41The CBELSA/TAPS Collaboration, 42The CBELSA/TAPS Collaboration, 43The CBELSA/TAPS Collaboration, 44The CBELSA/TAPS Collaboration, 45The CBELSA/TAPS Collaboration, 46The CBELSA/TAPS Collaboration, 47The CBELSA/TAPS Collaboration, 48The CBELSA/TAPS Collaboration, 49The CBELSA/TAPS Collaboration, 50The CBELSA/TAPS Collaboration, 51The CBELSA/TAPS Collaboration, 52The CBELSA/TAPS Collaboration, 53The CBELSA/TAPS Collaboration, 54The CBELSA/TAPS Collaboration, 55The CBELSA/TAPS Collaboration, 56The CBELSA/TAPS Collaboration, 57The CBELSA/TAPS Collaboration, 58The CBELSA/TAPS Collaboration, 59The CBELSA/TAPS Collaboration, 60The CBELSA/TAPS Collaboration, 61The CBELSA/TAPS Collaboration, 62The CBELSA/TAPS Collaboration, 63The CBELSA/TAPS Collaboration, 64The CBELSA/TAPS Collaboration

In a search for $\omega$ mesic states, the production of $\omega$-mesons in coincidence with forward going protons has been studied in photon induced reactions on $^{12}$C for incident photon energies of 1250 - 3100 MeV. The $\pi^0 \gamma$ pairs from decays of bound or quasi-free $\omega$-mesons have been measured with the CBELSA/TAPS detector system in coincidence with protons registered in the MiniTAPS forward array. Structures in the total energy distribution of the $\pi^0 \gamma$ pairs, which would indicate the population and decay of bound $\omega~^{11}$B states, are not observed. Read More

2014May
Affiliations: 1A2 Collaboration at MAMI, 2A2 Collaboration at MAMI, 3A2 Collaboration at MAMI, 4A2 Collaboration at MAMI, 5A2 Collaboration at MAMI, 6A2 Collaboration at MAMI, 7A2 Collaboration at MAMI, 8A2 Collaboration at MAMI, 9A2 Collaboration at MAMI, 10A2 Collaboration at MAMI, 11A2 Collaboration at MAMI, 12A2 Collaboration at MAMI, 13A2 Collaboration at MAMI, 14A2 Collaboration at MAMI, 15A2 Collaboration at MAMI, 16A2 Collaboration at MAMI, 17A2 Collaboration at MAMI, 18A2 Collaboration at MAMI, 19A2 Collaboration at MAMI, 20A2 Collaboration at MAMI, 21A2 Collaboration at MAMI, 22A2 Collaboration at MAMI, 23A2 Collaboration at MAMI, 24A2 Collaboration at MAMI, 25A2 Collaboration at MAMI, 26A2 Collaboration at MAMI, 27A2 Collaboration at MAMI, 28A2 Collaboration at MAMI, 29A2 Collaboration at MAMI, 30A2 Collaboration at MAMI, 31A2 Collaboration at MAMI, 32A2 Collaboration at MAMI, 33A2 Collaboration at MAMI, 34A2 Collaboration at MAMI, 35A2 Collaboration at MAMI, 36A2 Collaboration at MAMI, 37A2 Collaboration at MAMI, 38A2 Collaboration at MAMI, 39A2 Collaboration at MAMI, 40A2 Collaboration at MAMI, 41A2 Collaboration at MAMI, 42A2 Collaboration at MAMI, 43A2 Collaboration at MAMI, 44A2 Collaboration at MAMI, 45A2 Collaboration at MAMI, 46A2 Collaboration at MAMI, 47A2 Collaboration at MAMI, 48A2 Collaboration at MAMI, 49A2 Collaboration at MAMI, 50A2 Collaboration at MAMI, 51A2 Collaboration at MAMI, 52A2 Collaboration at MAMI, 53A2 Collaboration at MAMI, 54A2 Collaboration at MAMI, 55A2 Collaboration at MAMI, 56A2 Collaboration at MAMI, 57A2 Collaboration at MAMI, 58A2 Collaboration at MAMI, 59A2 Collaboration at MAMI, 60A2 Collaboration at MAMI, 61A2 Collaboration at MAMI, 62A2 Collaboration at MAMI, 63A2 Collaboration at MAMI, 64A2 Collaboration at MAMI, 65A2 Collaboration at MAMI, 66A2 Collaboration at MAMI, 67A2 Collaboration at MAMI, 68A2 Collaboration at MAMI, 69A2 Collaboration at MAMI, 70A2 Collaboration at MAMI, 71A2 Collaboration at MAMI, 72A2 Collaboration at MAMI, 73A2 Collaboration at MAMI, 74A2 Collaboration at MAMI, 75A2 Collaboration at MAMI, 76A2 Collaboration at MAMI, 77A2 Collaboration at MAMI, 78A2 Collaboration at MAMI, 79A2 Collaboration at MAMI

A new measurement of the rare, doubly radiative decay eta->pi^0 gamma gamma was conducted with the Crystal Ball and TAPS multiphoton spectrometers together with the photon tagging facility at the Mainz Microtron MAMI. New data on the dependence of the partial decay width, Gamma(eta->pi^0 gamma gamma), on the two-photon invariant mass squared, m^2(gamma gamma), as well as a new, more precise value for the decay width, Gamma(eta->pi^0 gamma gamma) = (0.33+/-0. Read More

Precise angular distributions have been measured for the first time for the photoproduction of $\pi^{0}$-mesons off neutrons bound in the deuteron. The effects from nuclear Fermi motion have been eliminated by a complete kinematic reconstruction of the final state. The influence of final-state-interaction effects has been estimated by a comparison of the reaction cross section for quasi-free protons bound in the deuteron to the results for free protons and then applied as a correction to the quasi-free neutron data. Read More

Beam-helicity asymmetries have been measured at the MAMI accelerator in Mainz for the photoproduction of mixed-charge pion pairs in the reactions $\boldsymbol{\gamma}p\rightarrow n\pi^0\pi^+$ off free protons and $\boldsymbol{\gamma}d\rightarrow (p)p\pi^0\pi^-$ and $\boldsymbol{\gamma}d\rightarrow (n)n\pi^0\pi^+$ off quasi-free nucleons bound in the deuteron for incident photon energies up to 1.4 GeV. Circularly polarized photons were produced from bremsstrahlung of longitudinally polarized electrons and tagged with the Glasgow-Mainz magnetic spectrometer. Read More

2013Nov
Affiliations: 1The CBELSA/TAPS Collaboration, 2The CBELSA/TAPS Collaboration, 3The CBELSA/TAPS Collaboration, 4The CBELSA/TAPS Collaboration, 5The CBELSA/TAPS Collaboration, 6The CBELSA/TAPS Collaboration, 7The CBELSA/TAPS Collaboration, 8The CBELSA/TAPS Collaboration, 9The CBELSA/TAPS Collaboration, 10The CBELSA/TAPS Collaboration, 11The CBELSA/TAPS Collaboration, 12The CBELSA/TAPS Collaboration, 13The CBELSA/TAPS Collaboration, 14The CBELSA/TAPS Collaboration, 15The CBELSA/TAPS Collaboration, 16The CBELSA/TAPS Collaboration, 17The CBELSA/TAPS Collaboration, 18The CBELSA/TAPS Collaboration, 19The CBELSA/TAPS Collaboration, 20The CBELSA/TAPS Collaboration, 21The CBELSA/TAPS Collaboration, 22The CBELSA/TAPS Collaboration, 23The CBELSA/TAPS Collaboration, 24The CBELSA/TAPS Collaboration, 25The CBELSA/TAPS Collaboration, 26The CBELSA/TAPS Collaboration, 27The CBELSA/TAPS Collaboration, 28The CBELSA/TAPS Collaboration, 29The CBELSA/TAPS Collaboration, 30The CBELSA/TAPS Collaboration, 31The CBELSA/TAPS Collaboration, 32The CBELSA/TAPS Collaboration, 33The CBELSA/TAPS Collaboration, 34The CBELSA/TAPS Collaboration, 35The CBELSA/TAPS Collaboration, 36The CBELSA/TAPS Collaboration, 37The CBELSA/TAPS Collaboration, 38The CBELSA/TAPS Collaboration, 39The CBELSA/TAPS Collaboration, 40The CBELSA/TAPS Collaboration, 41The CBELSA/TAPS Collaboration, 42The CBELSA/TAPS Collaboration, 43The CBELSA/TAPS Collaboration, 44The CBELSA/TAPS Collaboration, 45The CBELSA/TAPS Collaboration, 46The CBELSA/TAPS Collaboration, 47The CBELSA/TAPS Collaboration, 48The CBELSA/TAPS Collaboration, 49The CBELSA/TAPS Collaboration, 50The CBELSA/TAPS Collaboration, 51The CBELSA/TAPS Collaboration, 52The CBELSA/TAPS Collaboration, 53The CBELSA/TAPS Collaboration, 54The CBELSA/TAPS Collaboration, 55The CBELSA/TAPS Collaboration, 56The CBELSA/TAPS Collaboration, 57The CBELSA/TAPS Collaboration, 58The CBELSA/TAPS Collaboration, 59The CBELSA/TAPS Collaboration, 60The CBELSA/TAPS Collaboration, 61The CBELSA/TAPS Collaboration, 62The CBELSA/TAPS Collaboration

The excitation function and momentum distribution of $\eta^\prime$ mesons have been measured in photon induced reactions on $^{12}{}$C in the energy range of 1250-2600 MeV. The experiment was performed with tagged photon beams from the ELSA electron accelerator using the Crystal Barrel and TAPS detectors. The data are compared to model calculations to extract information on the sign and magnitude of the real part of the $\eta^\prime$-nucleus potential. Read More

In this fluid dynamics video, we present an experimental investigation of the shape of impact craters in granular materials. Complex crater shapes, including polygons, have been observed in many terrestrial planets as well as moons and asteroids. We release spherical projectiles from different heights above a granular bed (sand). Read More

We report the first large-acceptance measurement of polarization transfer from a polarized photon beam to a recoiling nucleon, pioneering a novel polarimetry technique with wide application to future nuclear and hadronic physics experiments. The commissioning measurement of polarization transfer in the $^{1}H$($\vec{\gamma}$,$\vec{p}$)$\pi^{0}$ reaction in the range $0.4Read More

2013Sep
Affiliations: 1A2 Collaboration at MAMI, 2A2 Collaboration at MAMI, 3A2 Collaboration at MAMI, 4A2 Collaboration at MAMI, 5A2 Collaboration at MAMI, 6A2 Collaboration at MAMI, 7A2 Collaboration at MAMI, 8A2 Collaboration at MAMI, 9A2 Collaboration at MAMI, 10A2 Collaboration at MAMI, 11A2 Collaboration at MAMI, 12A2 Collaboration at MAMI, 13A2 Collaboration at MAMI, 14A2 Collaboration at MAMI, 15A2 Collaboration at MAMI, 16A2 Collaboration at MAMI, 17A2 Collaboration at MAMI, 18A2 Collaboration at MAMI, 19A2 Collaboration at MAMI, 20A2 Collaboration at MAMI, 21A2 Collaboration at MAMI, 22A2 Collaboration at MAMI, 23A2 Collaboration at MAMI, 24A2 Collaboration at MAMI, 25A2 Collaboration at MAMI, 26A2 Collaboration at MAMI, 27A2 Collaboration at MAMI, 28A2 Collaboration at MAMI, 29A2 Collaboration at MAMI, 30A2 Collaboration at MAMI, 31A2 Collaboration at MAMI, 32A2 Collaboration at MAMI, 33A2 Collaboration at MAMI, 34A2 Collaboration at MAMI, 35A2 Collaboration at MAMI, 36A2 Collaboration at MAMI, 37A2 Collaboration at MAMI, 38A2 Collaboration at MAMI, 39A2 Collaboration at MAMI, 40A2 Collaboration at MAMI, 41A2 Collaboration at MAMI, 42A2 Collaboration at MAMI, 43A2 Collaboration at MAMI, 44A2 Collaboration at MAMI, 45A2 Collaboration at MAMI, 46A2 Collaboration at MAMI, 47A2 Collaboration at MAMI, 48A2 Collaboration at MAMI, 49A2 Collaboration at MAMI, 50A2 Collaboration at MAMI, 51A2 Collaboration at MAMI, 52A2 Collaboration at MAMI, 53A2 Collaboration at MAMI, 54A2 Collaboration at MAMI, 55A2 Collaboration at MAMI, 56A2 Collaboration at MAMI, 57A2 Collaboration at MAMI, 58A2 Collaboration at MAMI, 59A2 Collaboration at MAMI, 60A2 Collaboration at MAMI, 61A2 Collaboration at MAMI, 62A2 Collaboration at MAMI, 63A2 Collaboration at MAMI, 64A2 Collaboration at MAMI, 65A2 Collaboration at MAMI, 66A2 Collaboration at MAMI, 67A2 Collaboration at MAMI, 68A2 Collaboration at MAMI, 69A2 Collaboration at MAMI, 70A2 Collaboration at MAMI, 71A2 Collaboration at MAMI, 72A2 Collaboration at MAMI, 73A2 Collaboration at MAMI, 74A2 Collaboration at MAMI, 75A2 Collaboration at MAMI, 76A2 Collaboration at MAMI

The Dalitz decay eta -> e^+ e^- gamma has been measured in the gamma p -> eta p reaction with the Crystal Ball and TAPS multiphoton spectrometers, together with the photon tagging facility at the Mainz Microtron MAMI. The experimental statistic used in this work is one order of magnitude greater than in any previous measurement of eta -> e^+ e^- gamma. The value obtained for the slope parameter 1/Lambda^2 of the eta transition form factor, 1/Lambda^2 = (1. Read More

2013Jun
Affiliations: 1A2 Collaboration at MAMI, 2A2 Collaboration at MAMI, 3A2 Collaboration at MAMI, 4A2 Collaboration at MAMI, 5A2 Collaboration at MAMI, 6A2 Collaboration at MAMI, 7A2 Collaboration at MAMI, 8A2 Collaboration at MAMI, 9A2 Collaboration at MAMI, 10A2 Collaboration at MAMI, 11A2 Collaboration at MAMI, 12A2 Collaboration at MAMI, 13A2 Collaboration at MAMI, 14A2 Collaboration at MAMI, 15A2 Collaboration at MAMI, 16A2 Collaboration at MAMI, 17A2 Collaboration at MAMI, 18A2 Collaboration at MAMI, 19A2 Collaboration at MAMI, 20A2 Collaboration at MAMI, 21A2 Collaboration at MAMI, 22A2 Collaboration at MAMI, 23A2 Collaboration at MAMI, 24A2 Collaboration at MAMI, 25A2 Collaboration at MAMI, 26A2 Collaboration at MAMI, 27A2 Collaboration at MAMI, 28A2 Collaboration at MAMI, 29A2 Collaboration at MAMI, 30A2 Collaboration at MAMI, 31A2 Collaboration at MAMI, 32A2 Collaboration at MAMI, 33A2 Collaboration at MAMI, 34A2 Collaboration at MAMI, 35A2 Collaboration at MAMI, 36A2 Collaboration at MAMI, 37A2 Collaboration at MAMI, 38A2 Collaboration at MAMI, 39A2 Collaboration at MAMI, 40A2 Collaboration at MAMI, 41A2 Collaboration at MAMI, 42A2 Collaboration at MAMI, 43A2 Collaboration at MAMI, 44A2 Collaboration at MAMI, 45A2 Collaboration at MAMI, 46A2 Collaboration at MAMI, 47A2 Collaboration at MAMI, 48A2 Collaboration at MAMI, 49A2 Collaboration at MAMI, 50A2 Collaboration at MAMI, 51A2 Collaboration at MAMI, 52A2 Collaboration at MAMI, 53A2 Collaboration at MAMI, 54A2 Collaboration at MAMI, 55A2 Collaboration at MAMI, 56A2 Collaboration at MAMI, 57A2 Collaboration at MAMI, 58A2 Collaboration at MAMI, 59A2 Collaboration at MAMI, 60A2 Collaboration at MAMI, 61A2 Collaboration at MAMI, 62A2 Collaboration at MAMI, 63A2 Collaboration at MAMI, 64A2 Collaboration at MAMI, 65A2 Collaboration at MAMI, 66A2 Collaboration at MAMI, 67A2 Collaboration at MAMI, 68A2 Collaboration at MAMI, 69A2 Collaboration at MAMI, 70A2 Collaboration at MAMI, 71A2 Collaboration at MAMI, 72A2 Collaboration at MAMI, 73A2 Collaboration at MAMI, 74A2 Collaboration at MAMI, 75A2 Collaboration at MAMI, 76A2 Collaboration at MAMI, 77A2 Collaboration at MAMI, 78A2 Collaboration at MAMI

The g p -> K^0 Sigma^+ reaction has been measured from threshold to Eg=1.45 GeV (W_cm=1.9 GeV) using the Crystal Ball and TAPS multiphoton spectrometers together with the photon tagging facility at the Mainz Microtron MAMI. Read More

Beam-helicity asymmetries have been measured at the MAMI accelerator in Mainz for the photoproduction of neutral pion pairs in the reactions $\vec{\gamma}p\rightarrow p\pi^0\pi^0$ and $\vec{\gamma}d\rightarrow (n)p\pi^0\pi^0$, $\vec{\gamma}d\rightarrow (p)n\pi^0\pi^0$ off free protons and off quasi-free nucleons bound in the deuteron for incident photon energies up to 1.4 GeV. Circularly polarized photons were produced from bremsstrahlung of longitudinally polarized electrons and tagged with the Glasgow magnetic spectrometer. Read More

Coherent photoproduction of $\pi^0$-mesons from threshold ($E_{th} \approx$ 136 MeV) throughout the $\Delta$-resonance region and of $\eta$-mesons close to the production threshold ($E_{th} \approx$ 570 MeV for $\eta$) has been measured for $^7$Li nuclei. The experiment was performed using the tagged-photon beam of the Mainz MAMI accelerator with the Crystal Ball and TAPS detectors combined to give an almost 4$\pi$ solid-angle electromagnetic calorimeter. The reactions were identified by a combined invariant-mass and missing-energy analysis. Read More

A precision measurement of the differential cross sections $d\sigma/d\Omega$ and the linearly polarized photon asymmetry $\Sigma \equiv (d\sigma_\perp - d\sigma_\parallel) \slash (d\sigma_\perp + d\sigma_\parallel)$ for the $\vec{\gamma} p \rightarrow \pi^0p$ reaction in the near-threshold region has been performed with a tagged photon beam and almost $4\pi$ detector at the Mainz Microtron. The Glasgow-Mainz photon tagging facility along with the Crystal Ball/TAPS multi-photon detector system and a cryogenic liquid hydrogen target were used. These data allowed for a precise determination of the energy dependence of the real parts of the $S$- and all three $P$-wave amplitudes for the first time and provide the most stringent test to date of the predictions of Chiral Perturbation Theory and its energy region of agreement with experiment. Read More

2012Jul
Authors: PANDA Collaboration, W. Erni1, I. Keshelashvili2, B. Krusche3, M. Steinacher4, Y. Heng5, Z. Liu6, H. Liu7, X. Shen8, Q. Wang9, H. Xu10, M. Albrecht11, J. Becker12, K. Eickel13, F. Feldbauer14, M. Fink15, P. Friedel16, F. H. Heinsius17, T. Held18, H. Koch19, B. Kopf20, M. Leyhe21, C. Motzko22, M. Pelizäus23, J. Pychy24, B. Roth25, T. Schröder26, J. Schulze27, M. Steinke28, T. Trifterer29, U. Wiedner30, J. Zhong31, R. Beck32, M. Becker33, S. Bianco34, K. -Th. Brinkmann35, C. Hammann36, F. Hinterberger37, R. Jäkel38, D. Kaiser39, R. Kliemt40, K. Koop41, C. Schmidt42, R. Schnell43, U. Thoma44, P. Vlasov45, C. Wendel46, A. Winnebeck47, Th. Würschig48, H. -G. Zaunick49, A. Bianconi50, M. Bragadireanu51, M. Caprini52, M. Ciubancan53, D. Pantea54, P. -D Tarta55, M. De Napoli56, F. Giacoppo57, E. Rapisarda58, C. Sfienti59, T. Fiutowski60, N. Idzik61, B. Mindur62, D. Przyborowski63, K. Swientek64, E. Bialkowski65, A. Budzanowski66, B. Czech67, S. Kliczewski68, A. Kozela69, P. Kulessa70, P. Lebiedowicz71, K. Malgorzata72, K. Pysz73, W. Schäfer74, R. Siudak75, A. Szczurek76, P. Brandys77, T. Czyzewski78, W. Czyzycki79, M. Domagala80, M. Hawryluk81, G. Filo82, D. Kwiatkowski83, E. Lisowski84, F. Lisowski85, W. Bardan86, D. Gil87, B. Kamys88, St. Kistryn89, K. Korcyl90, W. Krzemieñ91, A. Magiera92, P. Moskal93, Z. Rudy94, P. Salabura95, J. Smyrski96, A. Wroñska97, M. Al-Turany98, R. Arora99, I. Augustin100, H. Deppe101, D. Dutta102, H. Flemming103, K. Götzen104, G. Hohler105, R. Karabowicz106, D. Lehmann107, B. Lewandowski108, J. Lühning109, F. Maas110, H. Orth111, K. Peters112, T. Saito113, G. Schepers114, C. J. Schmidt115, L. Schmitt116, C. Schwarz117, J. Schwiening118, B. Voss119, P. Wieczorek120, A. Wilms121, V. M. Abazov122, G. D. Alexeev123, V. A. Arefiev124, V. I. Astakhov125, M. Yu. Barabanov126, B. V. Batyunya127, Yu. I. Davydov128, V. Kh. Dodokhov129, A. A. Efremov130, A. G. Fedunov131, A. A. Feshchenko132, A. S. Galoyan133, S. Grigoryan134, A. Karmokov135, E. K. Koshurnikov136, V. I. Lobanov137, Yu. Yu. Lobanov138, A. F. Makarov139, L. V. Malinina140, V. L. Malyshev141, G. A. Mustafaev142, A. G. Olshevski143, M. A. Pasyuk144, E. A. Perevalova145, A. A. Piskun146, T. A. Pocheptsov147, G. Pontecorvo148, V. K. Rodionov149, Yu. N. Rogov150, R. A. Salmin151, A. G. Samartsev152, M. G. Sapozhnikov153, G. S. Shabratova154, A. N. Skachkova155, N. B. Skachkov156, E. A. Strokovsky157, M. K. Suleimanov158, R. Sh. Teshev159, V. V. Tokmenin160, V. V. Uzhinsky161, A. S. Vodopyanov162, S. A. Zaporozhets163, N. I. Zhuravlev164, A. G. Zorin165, D. Branford166, D. Glazier167, D. Watts168, P. Woods169, A. Britting170, W. Eyrich171, A. Lehmann172, F. Uhlig173, S. Dobbs174, Z. Metreveli175, K. Seth176, B. Tann177, A. Tomaradze178, D. Bettoni179, V. Carassiti180, P. Dalpiaz181, A. Drago182, E. Fioravanti183, I. Garzia184, M. Negrini185, M. Savriè186, G. Stancari187, B. Dulach188, P. Gianotti189, C. Guaraldo190, V. Lucherini191, E. Pace192, A. Bersani193, M. Macri194, M. Marinelli195, R. F. Parodi196, V. Dormenev197, P. Drexler198, M. Düren199, T. Eisner200, K. Foehl201, A. Hayrapetyan202, P. Koch203, B. Krïoch204, W. Kühn205, S. Lange206, Y. Liang207, M. Liu208, O. Merle209, V. Metag210, M. Moritz211, M. Nanova212, R. Novotny213, B. Spruck214, H. Stenzel215, C. Strackbein216, M. Thiel217, Q. Wang218, T. Clarkson219, C. Euan220, G. Hill221, M. Hoek222, D. Ireland223, R. Kaiser224, T. Keri225, I. Lehmann226, K. Livingston227, P. Lumsden228, D. MacGregor229, B. McKinnon230, R. Montgomery231, M. Murray232, D. Protopopescu233, G. Rosner234, B. Seitz235, G. Yang236, M. Babai237, A. K. Biegun238, A. Glazenborg-Kluttig239, E. Guliyev240, V. S. Jothi241, M. Kavatsyuk242, P. Lemmens243, H. Löhner244, J. Messchendorp245, T. Poelman246, H. Smit247, J. C. van der Weele248, H. Sohlbach249, M. Büscher250, R. Dosdall251, R. Dzhygadlo252, S. Esch253, A. Gillitzer254, F. Goldenbaum255, D. Grunwald256, V. Jha257, G. Kemmerling258, H. Kleines259, A. Lehrach260, R. Maier261, M. Mertens262, H. Ohm263, D. L. Pohl264, D. Prasuhn265, T. Randriamalala266, J. Ritman267, M. Roeder268, G. Sterzenbach269, T. Stockmanns270, P. Wintz271, P. Wüstner272, H. Xu273, J. Kisiel274, S. Li275, Z. Li276, Z. Sun277, H. Xu278, K. Fissum279, K. Hansen280, L. Isaksson281, M. Lundin282, B. Schröder283, P. Achenbach284, A. Denig285, M. Distler286, M. Fritsch287, D. Kangh288, A. Karavdina289, W. Lauth290, M. Michel291, M. C. Mora Espi292, J. Pochodzalla293, S. Sanchez294, A. Sanchez-Lorente295, C. Sfienti296, T. Weber297, V. I. Dormenev298, A. A. Fedorov299, M. V. Korzhik300, O. V. Missevitch301, V. Balanutsa302, V. Chernetsky303, A. Demekhin304, A. Dolgolenko305, P. Fedorets306, A. Gerasimov307, V. Goryachev308, A. Boukharov309, O. Malyshev310, I. Marishev311, A. Semenov312, R. Varma313, B. Ketzer314, I. Konorov315, A. Mann316, S. Neubert317, S. Paul318, M. Vandenbroucke319, Q. Zhang320, A. Khoukaz321, T. Rausmann322, A. Täschner323, J. Wessels324, E. Baldin325, K. Kotov326, S. Peleganchuk327, Yu. Tikhonov328, T. Hennino329, M. Imre330, R. Kunne331, C. Le Galliard332, J. P. Le Normand333, D. Marchand334, A. Maroni335, S. Ong336, J. Pouthas337, B. Ramstein338, P. Rosier339, M. Sudol340, C. Theneau341, E. Tomasi-Gustafsson342, J. Van de Wiele343, T. Zerguerras344, G. Boca345, A. Braghieri346, S. Costanza347, A. Fontana348, P. Genova349, L. Lavezzi350, P. Montagna351, A. Rotondi352, V. Buda353, V. V. Abramov354, A. M. Davidenko355, A. A. Derevschikov356, Y. M. Goncharenko357, V. N. Grishin358, V. A. Kachanov359, D. A. Konstantinov360, V. A. Kormilitsin361, Y. A. Matulenko362, Y. M. Melnik363, A. P. Meschanin364, N. G. Minaev365, V. V. Mochalov366, D. A. Morozov367, L. V. Nogach368, S. B. Nurushev369, A. V. Ryazantsev370, P. A. Semenov371, L. F. Soloviev372, A. V. Uzunian373, A. N. Vasiliev374, A. E. Yakutin375, S. Belostotski376, G. Gavrilov377, A. Itzotov378, A. Kisselev379, P. Kravchenko380, S. Manaenkov381, O. Miklukho382, Y. Naryshkin383, D. Veretennikov384, V. Vikhrov385, A. Zhadanov386, T. Bäck387, B. Cederwall388, C. Bargholtz389, L. Gerén390, P. E. Tegnér391, P. Thørngren392, K. M. von Würtemberg393, L. Fava394, D. Alberto395, A. Amoroso396, M. P. Bussa397, L. Busso398, F. De Mori399, M. Destefanis400, L. Ferrero401, M. Greco402, T. Kugathasan403, M. Maggiora404, S. Marcello405, S. Sosio406, S. Spataro407, D. Calvo408, S. Coli409, P. De Remigis410, A. Filippi411, G. Giraudo412, S. Lusso413, G. Mazza414, M. Mignone415, A. Rivetti416, R. Wheadon417, L. Zotti418, O. Morra419, F. Iazzi420, A. Lavagno421, P. Quarati422, K. Szymanska423, R. Birsa424, F. Bradamante425, A. Bressan426, A. Martin427, H. Clement428, B. Galnander429, H. Calén430, K. Fransson431, T. Johansson432, A. Kupsc433, P. Marciniewski434, E. Thomé435, M. Wolke436, J. Zlomanczuk437, J. Díaz438, A. Ortiz439, P. Buda440, K. Dmowski441, R. Korzeniewski442, D. Przemyslaw443, B. Slowinski444, S. Borsuk445, A. Chlopik446, Z. Guzik447, J. Kopec448, T. Kozlowski449, D. Melnychuk450, M. Plominski451, J. Szewinski452, K. Traczyk453, B. Zwieglinski454, P. Bühler455, A. Gruber456, P. Kienle457, J. Marton458, E. Widmann459, J. Zmeskal460
Affiliations: 1Universität Basel Switzerland, 2Universität Basel Switzerland, 3Universität Basel Switzerland, 4Universität Basel Switzerland, 5Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 6Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 7Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 8Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 9Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 10Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 11Universität Bochum I. Institut für Experimentalphysik, Germany, 12Universität Bochum I. Institut für Experimentalphysik, Germany, 13Universität Bochum I. Institut für Experimentalphysik, Germany, 14Universität Bochum I. Institut für Experimentalphysik, Germany, 15Universität Bochum I. Institut für Experimentalphysik, Germany, 16Universität Bochum I. Institut für Experimentalphysik, Germany, 17Universität Bochum I. Institut für Experimentalphysik, Germany, 18Universität Bochum I. Institut für Experimentalphysik, Germany, 19Universität Bochum I. Institut für Experimentalphysik, Germany, 20Universität Bochum I. Institut für Experimentalphysik, Germany, 21Universität Bochum I. Institut für Experimentalphysik, Germany, 22Universität Bochum I. Institut für Experimentalphysik, Germany, 23Universität Bochum I. Institut für Experimentalphysik, Germany, 24Universität Bochum I. Institut für Experimentalphysik, Germany, 25Universität Bochum I. Institut für Experimentalphysik, Germany, 26Universität Bochum I. Institut für Experimentalphysik, Germany, 27Universität Bochum I. Institut für Experimentalphysik, Germany, 28Universität Bochum I. Institut für Experimentalphysik, Germany, 29Universität Bochum I. Institut für Experimentalphysik, Germany, 30Universität Bochum I. Institut für Experimentalphysik, Germany, 31Universität Bochum I. Institut für Experimentalphysik, Germany, 32Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 33Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 34Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 35Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 36Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 37Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 38Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 39Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 40Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 41Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 42Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 43Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 44Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 45Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 46Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 47Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 48Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 49Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 50Università di Brescia Italy, 51Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 52Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 53Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 54Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 55Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 56Dipartimento di Fisica e Astronomia dell'Università di Catania and INFN, Sezione di Catania Italy, 57Dipartimento di Fisica e Astronomia dell'Università di Catania and INFN, Sezione di Catania Italy, 58Dipartimento di Fisica e Astronomia dell'Università di Catania and INFN, Sezione di Catania Italy, 59Dipartimento di Fisica e Astronomia dell'Università di Catania and INFN, Sezione di Catania Italy, 60AGH University of Science and Technology Cracow Poland, 61AGH University of Science and Technology Cracow Poland, 62AGH University of Science and Technology Cracow Poland, 63AGH University of Science and Technology Cracow Poland, 64AGH University of Science and Technology Cracow Poland, 65IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 66IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 67IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 68IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 69IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 70IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 71IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 72IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 73IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 74IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 75IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 76IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 77Institute of Applied Informatics, University of Technology, Cracow Poland, 78Institute of Applied Informatics, University of Technology, Cracow Poland, 79Institute of Applied Informatics, University of Technology, Cracow Poland, 80Institute of Applied Informatics, University of Technology, Cracow Poland, 81Institute of Applied Informatics, University of Technology, Cracow Poland, 82Institute of Applied Informatics, University of Technology, Cracow Poland, 83Institute of Applied Informatics, University of Technology, Cracow Poland, 84Institute of Applied Informatics, University of Technology, Cracow Poland, 85Institute of Applied Informatics, University of Technology, Cracow Poland, 86Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 87Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 88Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 89Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 90Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 91Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 92Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 93Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 94Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 95Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 96Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 97Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 98Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 99Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 100Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 101Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 102Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 103Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 104Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 105Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 106Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 107Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 108Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 109Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 110Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 111Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 112Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 113Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 114Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 115Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 116Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 117Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 118Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 119Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 120Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 121Gesellschaft für Schwerionenforschung mbH, Darmstadt Germany, 122Veksler-Baldin Laboratory of High Energies, 123Veksler-Baldin Laboratory of High Energies, 124Veksler-Baldin Laboratory of High Energies, 125Veksler-Baldin Laboratory of High Energies, 126Veksler-Baldin Laboratory of High Energies, 127Veksler-Baldin Laboratory of High Energies, 128Veksler-Baldin Laboratory of High Energies, 129Veksler-Baldin Laboratory of High Energies, 130Veksler-Baldin Laboratory of High Energies, 131Veksler-Baldin Laboratory of High Energies, 132Veksler-Baldin Laboratory of High Energies, 133Veksler-Baldin Laboratory of High Energies, 134Veksler-Baldin Laboratory of High Energies, 135Veksler-Baldin Laboratory of High Energies, 136Veksler-Baldin Laboratory of High Energies, 137Veksler-Baldin Laboratory of High Energies, 138Veksler-Baldin Laboratory of High Energies, 139Veksler-Baldin Laboratory of High Energies, 140Veksler-Baldin Laboratory of High Energies, 141Veksler-Baldin Laboratory of High Energies, 142Veksler-Baldin Laboratory of High Energies, 143Veksler-Baldin Laboratory of High Energies, 144Veksler-Baldin Laboratory of High Energies, 145Veksler-Baldin Laboratory of High Energies, 146Veksler-Baldin Laboratory of High Energies, 147Veksler-Baldin Laboratory of High Energies, 148Veksler-Baldin Laboratory of High Energies, 149Veksler-Baldin Laboratory of High Energies, 150Veksler-Baldin Laboratory of High Energies, 151Veksler-Baldin Laboratory of High Energies, 152Veksler-Baldin Laboratory of High Energies, 153Veksler-Baldin Laboratory of High Energies, 154Veksler-Baldin Laboratory of High Energies, 155Veksler-Baldin Laboratory of High Energies, 156Veksler-Baldin Laboratory of High Energies, 157Veksler-Baldin Laboratory of High Energies, 158Veksler-Baldin Laboratory of High Energies, 159Veksler-Baldin Laboratory of High Energies, 160Veksler-Baldin Laboratory of High Energies, 161Veksler-Baldin Laboratory of High Energies, 162Veksler-Baldin Laboratory of High Energies, 163Veksler-Baldin Laboratory of High Energies, 164Veksler-Baldin Laboratory of High Energies, 165Veksler-Baldin Laboratory of High Energies, 166University of Edinburgh United Kingdom, 167University of Edinburgh United Kingdom, 168University of Edinburgh United Kingdom, 169University of Edinburgh United Kingdom, 170Friedrich Alexander Universität Erlangen-Nürnberg Germany, 171Friedrich Alexander Universität Erlangen-Nürnberg Germany, 172Friedrich Alexander Universität Erlangen-Nürnberg Germany, 173Friedrich Alexander Universität Erlangen-Nürnberg Germany, 174Northwestern University, Evanston U. S. A, 175Northwestern University, Evanston U. S. A, 176Northwestern University, Evanston U. S. A, 177Northwestern University, Evanston U. S. A, 178Northwestern University, Evanston U. S. A, 179Università di Ferrara and INFN, Sezione di Ferrara, Italy, 180Università di Ferrara and INFN, Sezione di Ferrara, Italy, 181Università di Ferrara and INFN, Sezione di Ferrara, Italy, 182Università di Ferrara and INFN, Sezione di Ferrara, Italy, 183Università di Ferrara and INFN, Sezione di Ferrara, Italy, 184Università di Ferrara and INFN, Sezione di Ferrara, Italy, 185Università di Ferrara and INFN, Sezione di Ferrara, Italy, 186Università di Ferrara and INFN, Sezione di Ferrara, Italy, 187Università di Ferrara and INFN, Sezione di Ferrara, Italy, 188INFN-Laboratori Nazionali di Frascati Italy, 189INFN-Laboratori Nazionali di Frascati Italy, 190INFN-Laboratori Nazionali di Frascati Italy, 191INFN-Laboratori Nazionali di Frascati Italy, 192INFN-Laboratori Nazionali di Frascati Italy, 193INFN, Sezione di Genova Italy, 194INFN, Sezione di Genova Italy, 195INFN, Sezione di Genova Italy, 196INFN, Sezione di Genova Italy, 197Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 198Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 199Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 200Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 201Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 202Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 203Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 204Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 205Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 206Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 207Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 208Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 209Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 210Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 211Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 212Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 213Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 214Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 215Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 216Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 217Justus Liebig-Universität Gießen II. Physikalisches Institut, Germany, 218Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 219University of Glasgow United Kingdom, 220University of Glasgow United Kingdom, 221University of Glasgow United Kingdom, 222University of Glasgow United Kingdom, 223University of Glasgow United Kingdom, 224University of Glasgow United Kingdom, 225University of Glasgow United Kingdom, 226University of Glasgow United Kingdom, 227University of Glasgow United Kingdom, 228University of Glasgow United Kingdom, 229University of Glasgow United Kingdom, 230University of Glasgow United Kingdom, 231University of Glasgow United Kingdom, 232University of Glasgow United Kingdom, 233University of Glasgow United Kingdom, 234University of Glasgow United Kingdom, 235University of Glasgow United Kingdom, 236University of Glasgow United Kingdom, 237Kernfysisch Versneller Instituut, University of Groningen Netherlands, 238Kernfysisch Versneller Instituut, University of Groningen Netherlands, 239Kernfysisch Versneller Instituut, University of Groningen Netherlands, 240Kernfysisch Versneller Instituut, University of Groningen Netherlands, 241Kernfysisch Versneller Instituut, University of Groningen Netherlands, 242Kernfysisch Versneller Instituut, University of Groningen Netherlands, 243Kernfysisch Versneller Instituut, University of Groningen Netherlands, 244Kernfysisch Versneller Instituut, University of Groningen Netherlands, 245Kernfysisch Versneller Instituut, University of Groningen Netherlands, 246Kernfysisch Versneller Instituut, University of Groningen Netherlands, 247Kernfysisch Versneller Instituut, University of Groningen Netherlands, 248Kernfysisch Versneller Instituut, University of Groningen Netherlands, 249Fachhochschule Südwestfalen, Iserlohn Germany, 250Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 251Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 252Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 253Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 254Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 255Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 256Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 257Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 258Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 259Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 260Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 261Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 262Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 263Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 264Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 265Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 266Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 267Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 268Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 269Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 270Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 271Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 272Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 273Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 274University of Silesia, Katowice Poland, 275Chinese Academy of Science, Institute of Modern Physics, Lanzhou China, 276Chinese Academy of Science, Institute of Modern Physics, Lanzhou China, 277Chinese Academy of Science, Institute of Modern Physics, Lanzhou China, 278Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 279Lunds Universitet, Department of Physics, Lund Sweden, 280Lunds Universitet, Department of Physics, Lund Sweden, 281Lunds Universitet, Department of Physics, Lund Sweden, 282Lunds Universitet, Department of Physics, Lund Sweden, 283Lunds Universitet, Department of Physics, Lund Sweden, 284Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 285Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 286Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 287Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 288Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 289Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 290Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 291Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 292Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 293Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 294Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 295Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 296Dipartimento di Fisica e Astronomia dell'Università di Catania and INFN, Sezione di Catania Italy, 297Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 298Research Institute for Nuclear Problems, Belarus State University, Minsk Belarus, 299Research Institute for Nuclear Problems, Belarus State University, Minsk Belarus, 300Research Institute for Nuclear Problems, Belarus State University, Minsk Belarus, 301Research Institute for Nuclear Problems, Belarus State University, Minsk Belarus, 302Institute for Theoretical and Experimental Physics, Moscow Russia, 303Institute for Theoretical and Experimental Physics, Moscow Russia, 304Institute for Theoretical and Experimental Physics, Moscow Russia, 305Institute for Theoretical and Experimental Physics, Moscow Russia, 306Institute for Theoretical and Experimental Physics, Moscow Russia, 307Institute for Theoretical and Experimental Physics, Moscow Russia, 308Institute for Theoretical and Experimental Physics, Moscow Russia, 309Moscow Power Engineering Institute, Moscow Russia, 310Moscow Power Engineering Institute, Moscow Russia, 311Moscow Power Engineering Institute, Moscow Russia, 312Moscow Power Engineering Institute, Moscow Russia, 313IIT Bombay, Department of Physics, Mumbai India, 314Technische Universität München Germany, 315Technische Universität München Germany, 316Technische Universität München Germany, 317Technische Universität München Germany, 318Technische Universität München Germany, 319Technische Universität München Germany, 320Technische Universität München Germany, 321Westfälische Wilhelms-Universität Münster Germany, 322Westfälische Wilhelms-Universität Münster Germany, 323Westfälische Wilhelms-Universität Münster Germany, 324Westfälische Wilhelms-Universität Münster Germany, 325Budker Institute of Nuclear Physics, Novosibirsk Russia, 326Budker Institute of Nuclear Physics, Novosibirsk Russia, 327Budker Institute of Nuclear Physics, Novosibirsk Russia, 328Budker Institute of Nuclear Physics, Novosibirsk Russia, 329Institut de Physique Nucléaire, Orsay France, 330Institut de Physique Nucléaire, Orsay France, 331Institut de Physique Nucléaire, Orsay France, 332Institut de Physique Nucléaire, Orsay France, 333Institut de Physique Nucléaire, Orsay France, 334Institut de Physique Nucléaire, Orsay France, 335Institut de Physique Nucléaire, Orsay France, 336Institut de Physique Nucléaire, Orsay France, 337Institut de Physique Nucléaire, Orsay France, 338Institut de Physique Nucléaire, Orsay France, 339Institut de Physique Nucléaire, Orsay France, 340Institut de Physique Nucléaire, Orsay France, 341Institut de Physique Nucléaire, Orsay France, 342Institut de Physique Nucléaire, Orsay France, 343Institut de Physique Nucléaire, Orsay France, 344Institut de Physique Nucléaire, Orsay France, 345Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, INFN, Sezione di Pavia, Pavia Italy, 346Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, INFN, Sezione di Pavia, Pavia Italy, 347Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, INFN, Sezione di Pavia, Pavia Italy, 348Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, INFN, Sezione di Pavia, Pavia Italy, 349Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, INFN, Sezione di Pavia, Pavia Italy, 350Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, INFN, Sezione di Pavia, Pavia Italy, 351Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, INFN, Sezione di Pavia, Pavia Italy, 352Dipartimento di Fisica Nucleare e Teorica, Università di Pavia, INFN, Sezione di Pavia, Pavia Italy, 353Institute for High Energy Physics, Protvino Russia, 354Institute for High Energy Physics, Protvino Russia, 355Institute for High Energy Physics, Protvino Russia, 356Institute for High Energy Physics, Protvino Russia, 357Institute for High Energy Physics, Protvino Russia, 358Institute for High Energy Physics, Protvino Russia, 359Institute for High Energy Physics, Protvino Russia, 360Institute for High Energy Physics, Protvino Russia, 361Institute for High Energy Physics, Protvino Russia, 362Institute for High Energy Physics, Protvino Russia, 363Institute for High Energy Physics, Protvino Russia, 364Institute for High Energy Physics, Protvino Russia, 365Institute for High Energy Physics, Protvino Russia, 366Institute for High Energy Physics, Protvino Russia, 367Institute for High Energy Physics, Protvino Russia, 368Institute for High Energy Physics, Protvino Russia, 369Institute for High Energy Physics, Protvino Russia, 370Institute for High Energy Physics, Protvino Russia, 371Institute for High Energy Physics, Protvino Russia, 372Institute for High Energy Physics, Protvino Russia, 373Institute for High Energy Physics, Protvino Russia, 374Institute for High Energy Physics, Protvino Russia, 375Institute for High Energy Physics, Protvino Russia, 376Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 377Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 378Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 379Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 380Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 381Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 382Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 383Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 384Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 385Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 386Petersburg Nuclear Physics Institute of Academy of Science, Gatchina, St. Petersburg Russia, 387Kungliga Tekniska Högskolan, Stockholm Sweden, 388Kungliga Tekniska Högskolan, Stockholm Sweden, 389Stockholms Universitet, Stockholm Sweden, 390Stockholms Universitet, Stockholm Sweden, 391Stockholms Universitet, Stockholm Sweden, 392Stockholms Universitet, Stockholm Sweden, 393Stockholms Universitet, Stockholm Sweden, 394Università del Piemonte Orientale Alessandria and INFN, Sezione di Torino, Torino Italy, 395Università di Torino and INFN, Sezione di Torino, Torino Italy, 396Università di Torino and INFN, Sezione di Torino, Torino Italy, 397Università di Torino and INFN, Sezione di Torino, Torino Italy, 398Università di Torino and INFN, Sezione di Torino, Torino Italy, 399Università di Torino and INFN, Sezione di Torino, Torino Italy, 400Università di Torino and INFN, Sezione di Torino, Torino Italy, 401Università di Torino and INFN, Sezione di Torino, Torino Italy, 402Università di Torino and INFN, Sezione di Torino, Torino Italy, 403Università di Torino and INFN, Sezione di Torino, Torino Italy, 404Università di Torino and INFN, Sezione di Torino, Torino Italy, 405Università di Torino and INFN, Sezione di Torino, Torino Italy, 406Università di Torino and INFN, Sezione di Torino, Torino Italy, 407Università di Torino and INFN, Sezione di Torino, Torino Italy, 408INFN, Sezione di Torino, Torino Italy, 409INFN, Sezione di Torino, Torino Italy, 410INFN, Sezione di Torino, Torino Italy, 411INFN, Sezione di Torino, Torino Italy, 412INFN, Sezione di Torino, Torino Italy, 413INFN, Sezione di Torino, Torino Italy, 414INFN, Sezione di Torino, Torino Italy, 415INFN, Sezione di Torino, Torino Italy, 416INFN, Sezione di Torino, Torino Italy, 417INFN, Sezione di Torino, Torino Italy, 418INFN, Sezione di Torino, Torino Italy, 419INAF-IFSI and INFN, Sezione di Torino, Torino Italy, 420Politecnico di Torino and INFN, Sezione di Torino, Torino Italy, 421Politecnico di Torino and INFN, Sezione di Torino, Torino Italy, 422Politecnico di Torino and INFN, Sezione di Torino, Torino Italy, 423Politecnico di Torino and INFN, Sezione di Torino, Torino Italy, 424Università di Trieste and INFN, Sezione di Trieste, Trieste Italy, 425Università di Trieste and INFN, Sezione di Trieste, Trieste Italy, 426Università di Trieste and INFN, Sezione di Trieste, Trieste Italy, 427Università di Trieste and INFN, Sezione di Trieste, Trieste Italy, 428Universität Tübingen, Tübingen Germany, 429The Svedberg Laboratory, Uppsala Sweden, 430Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 431Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 432Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 433Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 434Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 435Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 436Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 437Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 438Universitat de Valencia, Dpto. de Física Atómica, Molecular y Nuclear, Valencia Spain, 439Universitat de Valencia, Dpto. de Física Atómica, Molecular y Nuclear, Valencia Spain, 440Warsaw University of Technology, Institute of Atomic Energy Otwock-Swierk, Warsaw Poland, 441Warsaw University of Technology, Institute of Atomic Energy Otwock-Swierk, Warsaw Poland, 442Warsaw University of Technology, Institute of Atomic Energy Otwock-Swierk, Warsaw Poland, 443Warsaw University of Technology, Institute of Atomic Energy Otwock-Swierk, Warsaw Poland, 444Warsaw University of Technology, Institute of Atomic Energy Otwock-Swierk, Warsaw Poland, 445Soltan Institute for Nuclear Studies, Warsaw Poland, 446Soltan Institute for Nuclear Studies, Warsaw Poland, 447Soltan Institute for Nuclear Studies, Warsaw Poland, 448Soltan Institute for Nuclear Studies, Warsaw Poland, 449Soltan Institute for Nuclear Studies, Warsaw Poland, 450Soltan Institute for Nuclear Studies, Warsaw Poland, 451Soltan Institute for Nuclear Studies, Warsaw Poland, 452Soltan Institute for Nuclear Studies, Warsaw Poland, 453Soltan Institute for Nuclear Studies, Warsaw Poland, 454Soltan Institute for Nuclear Studies, Warsaw Poland, 455Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 456Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 457Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 458Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 459Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 460Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria

This document illustrates the technical layout and the expected performance of the Micro Vertex Detector (MVD) of the PANDA experiment. The MVD will detect charged particles as close as possible to the interaction zone. Design criteria and the optimisation process as well as the technical solutions chosen are discussed and the results of this process are subjected to extensive Monte Carlo physics studies. Read More

The first measurement is reported of the double-polarization observable G in photoproduction of neutral pions off protons, covering the photon energy range from 620 to 1120 MeV and the full solid angle. G describes the correlation between the photon polarization plane and the scattering plane for protons polarized along the direction of the incoming photon. The observable is highly sensitive to contributions from baryon resonances. Read More

Precise total cross-sections and invariant-mass distributions have been measured for photoproduction of pion pairs off the proton producing $p\pi^0\pi^0$ and $n\pi^+\pi^0$ final states from the threshold region up to 800 MeV incident photon energy. Additionally, beam helicity asymmetries have been measured in the second resonance region (550 MeV - 820 MeV). The experiment was performed at the tagged photon beam of the Mainz MAMI accelerator with the Crystal Ball and TAPS detectors combined to give an almost 4$\pi$ solid-angle electromagnetic calorimeter. Read More

2012May
Authors: PANDA Collaboration, W. Erni1, I. Keshelashvili2, B. Krusche3, M. Steinacher4, Y. Heng5, Z. Liu6, H. Liu7, X. Shen8, Q. Wang9, H. Xu10, A. Aab11, M. Albrecht12, J. Becker13, A. Csapó14, F. Feldbauer15, M. Fink16, P. Friedel17, F. H. Heinsius18, T. Held19, L. Klask20, H. Koch21, B. Kopf22, S. Leiber23, M. Leyhe24, C. Motzko25, M. Pelizäus26, J. Pychy27, B. Roth28, T. Schröder29, J. Schulze30, C. Sowa31, M. Steinke32, T. Trifterer33, U. Wiedner34, J. Zhong35, R. Beck36, S. Bianco37, K. T. Brinkmann38, C. Hammann39, F. Hinterberger40, D. Kaiser41, R. Kliemt42, M. Kube43, A. Pitka44, T. Quagli45, C. Schmidt46, R. Schmitz47, R. Schnell48, U. Thoma49, P. Vlasov50, D. Walther51, C. Wendel52, T. Würschig53, H. G. Zaunick54, A. Bianconi55, M. Bragadireanu56, M. Caprini57, D. Pantea58, D. Pantelica59, D. Pietreanu60, L. Serbina61, P. D. Tarta62, D. Kaplan63, T. Fiutowski64, M. Idzik65, B. Mindur66, D. Przyborowski67, K. Swientek68, B. Czech69, M. Kistryn70, S. Kliczewski71, A. Kozela72, P. Kulessa73, P. Lebiedowicz74, K. Pysz75, W. Schäfer76, R. Siudak77, A. Szczurek78, S. Jowzaee79, M. Kajetanowicz80, B. Kamys81, S. Kistryn82, G. Korcyl83, K. Korcyl84, W. Krzemien85, A. Magiera86, P. Moskal87, M. Palka88, Z. Rudy89, P. Salabura90, J. Smyrski91, A. Wrońska92, I. Augustin93, I. Lehmann94, D. Nimorus95, G. Schepers96, M. Al-Turany97, R. Arora98, H. Deppe99, H. Flemming100, A. Gerhardt101, K. Götzen102, A. F. Jordi103, G. Kalicy104, R. Karabowicz105, D. Lehmann106, B. Lewandowski107, J. Lühning108, F. Maas109, H. Orth110, M. Patsyuk111, K. Peters112, T. Saito113, C. J. Schmidt114, L. Schmitt115, C. Schwarz116, J. Schwiening117, M. Traxler118, B. Voss119, P. Wieczorek120, A. Wilms121, M. Zühlsdorf122, V. M. Abazov123, G. Alexeev124, A. Arefiev125, V. I. Astakhov126, M. Yu. Barabanov127, B. V. Batyunya128, Yu. I. Davydov129, V. Kh. Dodokhov130, A. A. Efremov131, A. G. Fedunov132, A. A. Festchenko133, A. S. Galoyan134, S. Grigoryan135, A. Karmokov136, E. K. Koshurnikov137, V. I. Lobanov138, Yu. Yu. Lobanov139, A. F. Makarov140, L. V. Malinina141, V. L. Malyshev142, G. A. Mustafaev143, A. Olshevskiy144, M. A. Pasyuk145, E. A. Perevalova146, A. A. Piskun147, T. A. Pocheptsov148, G. Pontecorvo149, V. K. Rodionov150, Yu. N. Rogov151, R. A. Salmin152, A. G. Samartsev153, M. G. Sapozhnikov154, G. S. Shabratova155, A. N. Skachkova156, N. B. Skachkov157, E. A. Strokovsky158, M. K. Suleimanov159, R. Sh. Teshev160, V. V. Tokmenin161, V. V. Uzhinsky162, A. S. Vodopyanov163, S. A. Zaporozhets164, N. I. Zhuravlev165, A. G. Zorin166, D. Branford167, D. Glazier168, D. Watts169, P. Woods170, A. Britting171, W. Eyrich172, A. Lehmann173, F. Uhlig174, S. Dobbs175, Z. Metreveli176, K. Seth177, A. Tomaradze178, T. Xiao179, D. Bettoni180, V. Carassiti181, A. Cotta Ramusino182, P. Dalpiaz183, A. Drago184, E. Fioravanti185, I. Garzia186, M. Savriè187, G. Stancari188, N. Bianchi189, P. Gianotti190, C. Guaraldo191, V. Lucherini192, D. Orecchini193, E. Pace194, A. Bersani195, G. Bracco196, M. Macri197, R. F. Parodi198, D. Bremer199, V. Dormenev200, P. Drexler201, M. Düren202, T. Eissner203, K. Föhl204, M. Galuska205, T. Gessler206, A. Hayrapetyan207, J. Hu208, P. Koch209, B. Kröck210, W. Kühn211, S. Lange212, Y. Liang213, O. Merle214, V. Metag215, M. Moritz216, D. Münchow217, M. Nanova218, R. Novotny219, B. Spruck220, H. Stenzel221, T. Ullrich222, M. Werner223, H. Xu224, C. Euan225, M. Hoek226, D. Ireland227, T. Keri228, R. Montgomery229, D. Protopopescu230, G. Rosner231, B. Seitz232, M. Babai233, A. Glazenborg-Kluttig234, M. Kavatsyuk235, P. Lemmens236, M. Lindemulder237, H. Löhner238, J. Messchendorp239, H. Moeini240, P. Schakel241, F. Schreuder242, H. Smit243, G. Tambave244, J. C. van der Weele245, R. Veenstra246, H. Sohlbach247, M. Büscher248, D. Deermann249, R. Dosdall250, S. Esch251, A. Gillitzer252, F. Goldenbaum253, D. Grunwald254, S. Henssler255, A. Herten256, Q. Hu257, G. Kemmerling258, H. Kleines259, V. Kozlov260, A. Lehrach261, R. Maier262, M. Mertens263, H. Ohm264, S. Orfanitski265, D. Prasuhn266, T. Randriamalala267, J. Ritman268, S. Schadmand269, V. Serdyuk270, G. Sterzenbach271, T. Stockmanns272, P. Wintz273, P. Wüstner274, H. Xu275, J. Kisiel276, S. Li277, Z. Li278, Z. Sun279, H. Xu280, V. Rigato281, S. Fissum282, K. Hansen283, L. Isaksson284, M. Lundin285, B. Schröder286, P. Achenbach287, S. Bleser288, U. Cahit289, M. Cardinali290, A. Denig291, M. Distler292, M. Fritsch293, D. Kangh294, A. Karavdina295, W. Lauth296, H. Merkel297, M. Michel298, M. C. Mora Espi299, U. Müller300, J. Pochodzalla301, J. Prometeusz302, S. Sanchez303, A. Sanchez-Lorente304, S. Schlimme305, C. Sfienti306, M. Thiel307, T. Weber308, V. I. Dormenev309, A. A. Fedorov310, M. V. Korzhik311, O. V. Missevitch312, V. Balanutsa313, V. Chernetsky314, A. Demekhin315, A. Dolgolenko316, P. Fedorets317, A. Gerasimov318, V. Goryachev319, V. Varentsov320, A. Boukharov321, O. Malyshev322, I. Marishev323, A. Semenov324, F. Böhmer325, S. Dørheim326, B. Ketzer327, S. Paul328, A. K. Hergemöller329, A. Khoukaz330, E. Köhler331, A. Täschner332, J. Wessels333, R. Varma334, A. Chaterjee335, V. Jha336, S. Kailas337, B. Roy338, Y. Yan339, K. Chinorat340, K. Khanchai341, L. Ayut342, S. Pomrad343, E. Baldin344, K. Kotov345, S. Peleganchuk346, Yu. Tikhonov347, J. Boucher348, V. Chambert349, A. Dbeyssi350, T. Hennino351, M. Imre352, R. Kunne353, C. Le Galliard354, B. Ma355, D. Marchand356, A. Maroni357, S. Ong358, B. Ramstein359, P. Rosier360, M. Sudol361, E. Tomasi-Gustafsson362, J. Van de Wiele363, G. Boca364, A. Braghieri365, S. Costanza366, P. Genova367, L. Lavezzi368, P. Montagna369, A. Rotondi370, V. Abramov371, N. Belikov372, A. Davidenko373, A. Derevschikov374, Y. Goncharenko375, V. Grishin376, V. Kachanov377, D. Konstantinov378, V. Kormilitsin379, Y. Melnik380, A. Levin381, N. Minaev382, V. Mochalov383, D. Morozov384, L. Nogach385, S. Poslavskiy386, A. Ryazantsev387, S. Ryzhikov388, P. Semenov389, I. Shein390, A. Uzunian391, A. Vasiliev392, A. Yakutin393, T. Bäck394, B. Cederwall395, K. Makónyi396, P. E. Tegnér397, K. M. von Würtemberg398, S. Belostotski399, G. Gavrilov400, A. Itzotov401, A. Kashchuk402, A. Kisselev403, P. Kravchenko404, O. Levitskaya405, S. Manaenkov406, O. Miklukho407, Y. Naryshkin408, D. Veretennikov409, V. Vikhrov410, A. Zhadanov411, D. Alberto412, A. Amoroso413, M. P. Bussa414, L. Busso415, F. De Mori416, M. Destefanis417, L. Fava418, L. Ferrero419, M. Greco420, M. Maggiora421, S. Marcello422, S. Sosio423, S. Spataro424, L. Zotti425, D. Calvo426, S. Coli427, P. De Remigis428, A. Filippi429, G. Giraudo430, S. Lusso431, G. Mazza432, O. Morra433, A. Rivetti434, R. Wheadon435, F. Iazzi436, A. Lavagno437, H. Younis438, R. Birsa439, F. Bradamante440, A. Bressan441, A. Martin442, H. Clement443, B. Galander444, L. Caldeira Balkeståhl445, H. Calén446, K. Fransson447, T. Johansson448, A. Kupsc449, P. Marciniewski450, E. Thomé451, M. Wolke452, J. Zlomanczuk453, J. Díaz454, A. Ortiz455, K. Dmowski456, P. Duda457, R. Korzeniewski458, B. Slowinski459, A. Chlopik460, Z. Guzik461, K. Kosinski462, D. Melnychuk463, A. Wasilewski464, M. Wojciechowski465, S. Wronka466, A. Wysocka467, B. Zwieglinski468, P. Bühler469, O. Hartman470, P. Kienle471, J. Marton472, K. Suzuki473, E. Widmann474, J. Zmeskal475
Affiliations: 1Universität Basel Switzerland, 2Universität Basel Switzerland, 3Universität Basel Switzerland, 4Universität Basel Switzerland, 5Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 6Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 7Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 8Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 9Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 10Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 11Universität Bochum I. Institut für Experimentalphysik, Germany, 12Universität Bochum I. Institut für Experimentalphysik, Germany, 13Universität Bochum I. Institut für Experimentalphysik, Germany, 14Universität Bochum I. Institut für Experimentalphysik, Germany, 15Universität Bochum I. Institut für Experimentalphysik, Germany, 16Universität Bochum I. Institut für Experimentalphysik, Germany, 17Universität Bochum I. Institut für Experimentalphysik, Germany, 18Universität Bochum I. Institut für Experimentalphysik, Germany, 19Universität Bochum I. Institut für Experimentalphysik, Germany, 20Universität Bochum I. Institut für Experimentalphysik, Germany, 21Universität Bochum I. Institut für Experimentalphysik, Germany, 22Universität Bochum I. Institut für Experimentalphysik, Germany, 23Universität Bochum I. Institut für Experimentalphysik, Germany, 24Universität Bochum I. Institut für Experimentalphysik, Germany, 25Universität Bochum I. Institut für Experimentalphysik, Germany, 26Universität Bochum I. Institut für Experimentalphysik, Germany, 27Universität Bochum I. Institut für Experimentalphysik, Germany, 28Universität Bochum I. Institut für Experimentalphysik, Germany, 29Universität Bochum I. Institut für Experimentalphysik, Germany, 30Universität Bochum I. Institut für Experimentalphysik, Germany, 31Universität Bochum I. Institut für Experimentalphysik, Germany, 32Universität Bochum I. Institut für Experimentalphysik, Germany, 33Universität Bochum I. Institut für Experimentalphysik, Germany, 34Universität Bochum I. Institut für Experimentalphysik, Germany, 35Universität Bochum I. Institut für Experimentalphysik, Germany, 36Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 37Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 38Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 39Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 40Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 41Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 42Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 43Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 44Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 45Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 46Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 47Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 48Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 49Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 50Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 51Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 52Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 53Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 54Rheinische Friedrich-Wilhelms-Universität Bonn Germany, 55Università, di Brescia Italy, 56Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 57Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 58Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 59Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 60Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 61Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 62Institutul National de C&D pentru Fizica si Inginerie Nucleara "Horia Hulubei", Bukarest-Magurele Romania, 63IIT, Illinois Institute of Technology, Chicago U.S.A, 64AGH, University of Science and Technology, Cracow Poland, 65AGH, University of Science and Technology, Cracow Poland, 66AGH, University of Science and Technology, Cracow Poland, 67AGH, University of Science and Technology, Cracow Poland, 68AGH, University of Science and Technology, Cracow Poland, 69IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 70IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 71IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 72IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 73IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 74IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 75IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 76IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 77IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 78IFJ, Institute of Nuclear Physics PAN, Cracow Poland, 79Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 80Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 81Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 82Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 83Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 84Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 85Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 86Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 87Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 88Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 89Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 90Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 91Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 92Instytut Fizyki, Uniwersytet Jagiellonski, Cracow Poland, 93FAIR - Facility for Antiproton and Ion Research in Europe, Darmstadt, Germany, 94FAIR - Facility for Antiproton and Ion Research in Europe, Darmstadt, Germany, 95FAIR - Facility for Antiproton and Ion Research in Europe, Darmstadt, Germany, 96FAIR - Facility for Antiproton and Ion Research in Europe, Darmstadt, Germany, 97Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 98Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 99Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 100Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 101Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 102Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 103Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 104Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 105Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 106Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 107Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 108Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 109Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 110Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 111Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 112Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 113Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 114Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 115Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 116Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 117Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 118Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 119Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 120Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 121Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 122Gesellschaft für Schwerionenforschung GmbH, Darmstadt Germany, 123Veksler-Baldin Laboratory of High Energies, 124Veksler-Baldin Laboratory of High Energies, 125Veksler-Baldin Laboratory of High Energies, 126Veksler-Baldin Laboratory of High Energies, 127Veksler-Baldin Laboratory of High Energies, 128Veksler-Baldin Laboratory of High Energies, 129Veksler-Baldin Laboratory of High Energies, 130Veksler-Baldin Laboratory of High Energies, 131Veksler-Baldin Laboratory of High Energies, 132Veksler-Baldin Laboratory of High Energies, 133Veksler-Baldin Laboratory of High Energies, 134Veksler-Baldin Laboratory of High Energies, 135Veksler-Baldin Laboratory of High Energies, 136Veksler-Baldin Laboratory of High Energies, 137Veksler-Baldin Laboratory of High Energies, 138Veksler-Baldin Laboratory of High Energies, 139Veksler-Baldin Laboratory of High Energies, 140Veksler-Baldin Laboratory of High Energies, 141Veksler-Baldin Laboratory of High Energies, 142Veksler-Baldin Laboratory of High Energies, 143Veksler-Baldin Laboratory of High Energies, 144Veksler-Baldin Laboratory of High Energies, 145Veksler-Baldin Laboratory of High Energies, 146Veksler-Baldin Laboratory of High Energies, 147Veksler-Baldin Laboratory of High Energies, 148Veksler-Baldin Laboratory of High Energies, 149Veksler-Baldin Laboratory of High Energies, 150Veksler-Baldin Laboratory of High Energies, 151Veksler-Baldin Laboratory of High Energies, 152Veksler-Baldin Laboratory of High Energies, 153Veksler-Baldin Laboratory of High Energies, 154Veksler-Baldin Laboratory of High Energies, 155Veksler-Baldin Laboratory of High Energies, 156Veksler-Baldin Laboratory of High Energies, 157Veksler-Baldin Laboratory of High Energies, 158Veksler-Baldin Laboratory of High Energies, 159Veksler-Baldin Laboratory of High Energies, 160Veksler-Baldin Laboratory of High Energies, 161Veksler-Baldin Laboratory of High Energies, 162Veksler-Baldin Laboratory of High Energies, 163Veksler-Baldin Laboratory of High Energies, 164Veksler-Baldin Laboratory of High Energies, 165Veksler-Baldin Laboratory of High Energies, 166Veksler-Baldin Laboratory of High Energies, 167University of Edinburgh United Kingdom, 168University of Edinburgh United Kingdom, 169University of Edinburgh United Kingdom, 170University of Edinburgh United Kingdom, 171Friedrich Alexander Universität Erlangen-Nürnberg Germany, 172Friedrich Alexander Universität Erlangen-Nürnberg Germany, 173Friedrich Alexander Universität Erlangen-Nürnberg Germany, 174Friedrich Alexander Universität Erlangen-Nürnberg Germany, 175Northwestern University, Evanston U.S.A, 176Northwestern University, Evanston U.S.A, 177Northwestern University, Evanston U.S.A, 178Northwestern University, Evanston U.S.A, 179Northwestern University, Evanston U.S.A, 180Università, di Ferrara and INFN Sezione di Ferrara, Ferrara Italy, 181Università, di Ferrara and INFN Sezione di Ferrara, Ferrara Italy, 182Università, di Ferrara and INFN Sezione di Ferrara, Ferrara Italy, 183Università, di Ferrara and INFN Sezione di Ferrara, Ferrara Italy, 184Università, di Ferrara and INFN Sezione di Ferrara, Ferrara Italy, 185Università, di Ferrara and INFN Sezione di Ferrara, Ferrara Italy, 186Università, di Ferrara and INFN Sezione di Ferrara, Ferrara Italy, 187Università, di Ferrara and INFN Sezione di Ferrara, Ferrara Italy, 188Università, di Ferrara and INFN Sezione di Ferrara, Ferrara Italy, 189INFN Laboratori Nazionali di Frascati Italy, 190INFN Laboratori Nazionali di Frascati Italy, 191INFN Laboratori Nazionali di Frascati Italy, 192INFN Laboratori Nazionali di Frascati Italy, 193INFN Laboratori Nazionali di Frascati Italy, 194INFN Laboratori Nazionali di Frascati Italy, 195INFN Sezione di Genova Italy, 196INFN Sezione di Genova Italy, 197INFN Sezione di Genova Italy, 198INFN Sezione di Genova Italy, 199Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 200Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 201Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 202Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 203Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 204Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 205Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 206Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 207Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 208Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 209Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 210Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 211Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 212Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 213Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 214Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 215Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 216Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 217Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 218Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 219Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 220Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 221Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 222Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 223Justus Liebig-Universität Gießen II Physikalisches Institut, Germany, 224Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 225University of Glasgow United Kingdom, 226University of Glasgow United Kingdom, 227University of Glasgow United Kingdom, 228University of Glasgow United Kingdom, 229University of Glasgow United Kingdom, 230University of Glasgow United Kingdom, 231University of Glasgow United Kingdom, 232University of Glasgow United Kingdom, 233Kernfysisch Versneller Instituut, University of Groningen Netherlands, 234Kernfysisch Versneller Instituut, University of Groningen Netherlands, 235Kernfysisch Versneller Instituut, University of Groningen Netherlands, 236Kernfysisch Versneller Instituut, University of Groningen Netherlands, 237Kernfysisch Versneller Instituut, University of Groningen Netherlands, 238Kernfysisch Versneller Instituut, University of Groningen Netherlands, 239Kernfysisch Versneller Instituut, University of Groningen Netherlands, 240Kernfysisch Versneller Instituut, University of Groningen Netherlands, 241Kernfysisch Versneller Instituut, University of Groningen Netherlands, 242Kernfysisch Versneller Instituut, University of Groningen Netherlands, 243Kernfysisch Versneller Instituut, University of Groningen Netherlands, 244Kernfysisch Versneller Instituut, University of Groningen Netherlands, 245Kernfysisch Versneller Instituut, University of Groningen Netherlands, 246Kernfysisch Versneller Instituut, University of Groningen Netherlands, 247Fachhochschule Südwestfalen Iserlohn Germany, 248Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 249Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 250Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 251Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 252Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 253Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 254Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 255Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 256Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 257Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 258Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 259Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 260Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 261Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 262Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 263Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 264Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 265Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 266Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 267Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 268Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 269Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 270Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 271Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 272Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 273Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 274Forschungszentrum Jülich, Institut für Kernphysik, Jülich Germany, 275Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 276University of Silesia, Katowice Poland, 277Chinese Academy of Science, Institute of Modern Physics, Lanzhou China, 278Chinese Academy of Science, Institute of Modern Physics, Lanzhou China, 279Chinese Academy of Science, Institute of Modern Physics, Lanzhou China, 280Institute of High Energy Physics, Chinese Academy of Sciences, Beijing China, 281INFN Laboratori Nazionali di Legnaro Italy, 282Lunds Universitet, Department of Physics, Lund Sweden, 283Lunds Universitet, Department of Physics, Lund Sweden, 284Lunds Universitet, Department of Physics, Lund Sweden, 285Lunds Universitet, Department of Physics, Lund Sweden, 286Lunds Universitet, Department of Physics, Lund Sweden, 287Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 288Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 289Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 290Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 291Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 292Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 293Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 294Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 295Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 296Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 297Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 298Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 299Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 300Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 301Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 302Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 303Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 304Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 305Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 306Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 307Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 308Johannes Gutenberg-Universität, Institut für Kernphysik, Mainz Germany, 309Research Institute for Nuclear Problems, Belarus State University, Minsk Belarus, 310Research Institute for Nuclear Problems, Belarus State University, Minsk Belarus, 311Research Institute for Nuclear Problems, Belarus State University, Minsk Belarus, 312Research Institute for Nuclear Problems, Belarus State University, Minsk Belarus, 313Institute for Theoretical and Experimental Physics, Moscow Russia, 314Institute for Theoretical and Experimental Physics, Moscow Russia, 315Institute for Theoretical and Experimental Physics, Moscow Russia, 316Institute for Theoretical and Experimental Physics, Moscow Russia, 317Institute for Theoretical and Experimental Physics, Moscow Russia, 318Institute for Theoretical and Experimental Physics, Moscow Russia, 319Institute for Theoretical and Experimental Physics, Moscow Russia, 320Institute for Theoretical and Experimental Physics, Moscow Russia, 321Moscow Power Engineering Institute, Moscow Russia, 322Moscow Power Engineering Institute, Moscow Russia, 323Moscow Power Engineering Institute, Moscow Russia, 324Moscow Power Engineering Institute, Moscow Russia, 325Technische Universität München Germany, 326Technische Universität München Germany, 327Technische Universität München Germany, 328Technische Universität München Germany, 329Westfälische Wilhelms-Universität Münster Germany, 330Westfälische Wilhelms-Universität Münster Germany, 331Westfälische Wilhelms-Universität Münster Germany, 332Westfälische Wilhelms-Universität Münster Germany, 333Westfälische Wilhelms-Universität Münster Germany, 334IIT Bombay, Department of Physics, Mumbai India, 335Bhabha Atomic Research Center, Mumbai India, 336Bhabha Atomic Research Center, Mumbai India, 337Bhabha Atomic Research Center, Mumbai India, 338Bhabha Atomic Research Center, Mumbai India, 339Suranaree University of Technology, Nakhon Ratchasima Thailand, 340Suranaree University of Technology, Nakhon Ratchasima Thailand, 341Suranaree University of Technology, Nakhon Ratchasima Thailand, 342Suranaree University of Technology, Nakhon Ratchasima Thailand, 343Suranaree University of Technology, Nakhon Ratchasima Thailand, 344Budker Institute of Nuclear Physics of Russian Academy of Science, Novosibirsk Russia, 345Budker Institute of Nuclear Physics of Russian Academy of Science, Novosibirsk Russia, 346Budker Institute of Nuclear Physics of Russian Academy of Science, Novosibirsk Russia, 347Budker Institute of Nuclear Physics of Russian Academy of Science, Novosibirsk Russia, 348Institut de Physique Nucléaire, Orsay France, 349Institut de Physique Nucléaire, Orsay France, 350Institut de Physique Nucléaire, Orsay France, 351Institut de Physique Nucléaire, Orsay France, 352Institut de Physique Nucléaire, Orsay France, 353Institut de Physique Nucléaire, Orsay France, 354Institut de Physique Nucléaire, Orsay France, 355Institut de Physique Nucléaire, Orsay France, 356Institut de Physique Nucléaire, Orsay France, 357Institut de Physique Nucléaire, Orsay France, 358Institut de Physique Nucléaire, Orsay France, 359Institut de Physique Nucléaire, Orsay France, 360Institut de Physique Nucléaire, Orsay France, 361Institut de Physique Nucléaire, Orsay France, 362Institut de Physique Nucléaire, Orsay France, 363Institut de Physique Nucléaire, Orsay France, 364Dipartimento di Fisica Nucleare e Teorica, Università, di Pavia, INFN Sezione di Pavia, Pavia Italy, 365Dipartimento di Fisica Nucleare e Teorica, Università, di Pavia, INFN Sezione di Pavia, Pavia Italy, 366Dipartimento di Fisica Nucleare e Teorica, Università, di Pavia, INFN Sezione di Pavia, Pavia Italy, 367Dipartimento di Fisica Nucleare e Teorica, Università, di Pavia, INFN Sezione di Pavia, Pavia Italy, 368Dipartimento di Fisica Nucleare e Teorica, Università, di Pavia, INFN Sezione di Pavia, Pavia Italy, 369Dipartimento di Fisica Nucleare e Teorica, Università, di Pavia, INFN Sezione di Pavia, Pavia Italy, 370Dipartimento di Fisica Nucleare e Teorica, Università, di Pavia, INFN Sezione di Pavia, Pavia Italy, 371Institute for High Energy Physics, Protvino Russia, 372Institute for High Energy Physics, Protvino Russia, 373Institute for High Energy Physics, Protvino Russia, 374Institute for High Energy Physics, Protvino Russia, 375Institute for High Energy Physics, Protvino Russia, 376Institute for High Energy Physics, Protvino Russia, 377Institute for High Energy Physics, Protvino Russia, 378Institute for High Energy Physics, Protvino Russia, 379Institute for High Energy Physics, Protvino Russia, 380Institute for High Energy Physics, Protvino Russia, 381Institute for High Energy Physics, Protvino Russia, 382Institute for High Energy Physics, Protvino Russia, 383Institute for High Energy Physics, Protvino Russia, 384Institute for High Energy Physics, Protvino Russia, 385Institute for High Energy Physics, Protvino Russia, 386Institute for High Energy Physics, Protvino Russia, 387Institute for High Energy Physics, Protvino Russia, 388Institute for High Energy Physics, Protvino Russia, 389Institute for High Energy Physics, Protvino Russia, 390Institute for High Energy Physics, Protvino Russia, 391Institute for High Energy Physics, Protvino Russia, 392Institute for High Energy Physics, Protvino Russia, 393Institute for High Energy Physics, Protvino Russia, 394Kungliga Tekniska Högskolan, Stockholm Sweden, 395Kungliga Tekniska Högskolan, Stockholm Sweden, 396Stockholms Universitet, Stockholm Sweden, 397Stockholms Universitet, Stockholm Sweden, 398Stockholms Universitet, Stockholm Sweden, 399Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 400Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 401Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 402Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 403Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 404Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 405Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 406Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 407Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 408Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 409Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 410Petersburg Nuclear Physics Institute of Russian Academy of Science, Gatchina, St. Petersburg Russia, 411Stockholms Universitet, Stockholm Sweden, 412Università, di Torino and INFN Sezione di Torino, Torino Italy, 413Università, di Torino and INFN Sezione di Torino, Torino Italy, 414Università, di Torino and INFN Sezione di Torino, Torino Italy, 415Università, di Torino and INFN Sezione di Torino, Torino Italy, 416Università, di Torino and INFN Sezione di Torino, Torino Italy, 417Università, di Torino and INFN Sezione di Torino, Torino Italy, 418Università, di Torino and INFN Sezione di Torino, Torino Italy, 419Università, di Torino and INFN Sezione di Torino, Torino Italy, 420Università, di Torino and INFN Sezione di Torino, Torino Italy, 421Università, di Torino and INFN Sezione di Torino, Torino Italy, 422Università, di Torino and INFN Sezione di Torino, Torino Italy, 423Università, di Torino and INFN Sezione di Torino, Torino Italy, 424Università, di Torino and INFN Sezione di Torino, Torino Italy, 425Università, di Torino and INFN Sezione di Torino, Torino Italy, 426INFN Sezione di Torino, Torino Italy, 427INFN Sezione di Torino, Torino Italy, 428INFN Sezione di Torino, Torino Italy, 429INFN Sezione di Torino, Torino Italy, 430INFN Sezione di Torino, Torino Italy, 431INFN Sezione di Torino, Torino Italy, 432INFN Sezione di Torino, Torino Italy, 433INFN Sezione di Torino, Torino Italy, 434INFN Sezione di Torino, Torino Italy, 435INFN Sezione di Torino, Torino Italy, 436Politecnico di Torino and INFN Sezione di Torino, Torino Italy, 437Politecnico di Torino and INFN Sezione di Torino, Torino Italy, 438Politecnico di Torino and INFN Sezione di Torino, Torino Italy, 439Università, di Trieste and INFN Sezione di Trieste, Trieste Italy, 440Università, di Trieste and INFN Sezione di Trieste, Trieste Italy, 441Università, di Trieste and INFN Sezione di Trieste, Trieste Italy, 442Università, di Trieste and INFN Sezione di Trieste, Trieste Italy, 443Universität Tübingen, Tübingen Germany, 444The Svedberg Laboratory, Uppsala Sweden, 445Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 446Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 447Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 448Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 449Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 450Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 451Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 452Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 453Uppsala Universitet, Institutionen för Strålningsvetenskap, Uppsala Sweden, 454Universitat de Valencia Dpto. de Física Atómica, Molecular y Nuclear, Spain, 455Universitat de Valencia Dpto. de Física Atómica, Molecular y Nuclear, Spain, 456University of Technology, Institute of Atomic Energy Otwock-Swierk, Warsaw Poland, 457University of Technology, Institute of Atomic Energy Otwock-Swierk, Warsaw Poland, 458University of Technology, Institute of Atomic Energy Otwock-Swierk, Warsaw Poland, 459University of Technology, Institute of Atomic Energy Otwock-Swierk, Warsaw Poland, 460National Centre for Nuclear Research, Warsaw Poland, 461National Centre for Nuclear Research, Warsaw Poland, 462National Centre for Nuclear Research, Warsaw Poland, 463National Centre for Nuclear Research, Warsaw Poland, 464National Centre for Nuclear Research, Warsaw Poland, 465National Centre for Nuclear Research, Warsaw Poland, 466National Centre for Nuclear Research, Warsaw Poland, 467National Centre for Nuclear Research, Warsaw Poland, 468National Centre for Nuclear Research, Warsaw Poland, 469Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 470Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 471Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 472Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 473Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 474Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria, 475Österreichische Akademie der Wissenschaften, Stefan Meyer Institut für Subatomare Physik, Wien Austria

This document describes the technical layout and the expected performance of the Straw Tube Tracker (STT), the main tracking detector of the PANDA target spectrometer. The STT encloses a Micro-Vertex-Detector (MVD) for the inner tracking and is followed in beam direction by a set of GEM-stations. The tasks of the STT are the measurement of the particle momentum from the reconstructed trajectory and the measurement of the specific energy-loss for a particle identification. Read More

The gamma p --> pi0 pi0 p reaction has been measured from threshold to 1.4 GeV using the Crystal Ball and TAPS photon spectrometers together with the photon tagging facility at the Mainz Microtron. The experimental results include total and differential cross sections as well as specific angular distributions, which were used to extract partial-wave amplitudes. Read More

2010Sep
Affiliations: 1The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 2The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 3The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 4The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 5The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 6The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 7The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 8The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 9The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 10The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 11The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 12The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 13The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 14The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 15The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 16The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 17The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 18The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 19The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 20The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 21The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 22The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 23The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 24The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 25The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 26The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 27The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 28The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 29The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 30The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 31The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 32The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 33The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 34The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 35The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 36The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 37The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 38The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 39The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 40The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 41The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 42The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 43The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 44The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 45The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 46The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 47The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 48The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 49The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 50The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 51The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 52The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 53The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 54The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 55The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 56The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 57The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 58The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 59The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 60The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 61The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 62The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 63The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 64The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 65The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 66The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 67The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 68The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 69The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 70The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 71The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 72The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 73The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 74The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 75The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 76The Crystal Ball at MAMI, TAPS, and A2 Collaborations, 77The Crystal Ball at MAMI, TAPS, and A2 Collaborations

The circular photon asymmetry for pi0 eta photoproduction on the proton was measured for the first time at the tagged photon facility of the MAMI C accelerator using the Crystal Ball/TAPS photon spectrometer. The experimental results are interpreted within a phenomenological isobar model that confirms the dominant role of the Delta(1700)D33 resonance. The measured asymmetry allows us to identify small contributions from positive-parity resonances via interference terms with the dominant D33 amplitude. Read More

2010Jul
Affiliations: 1Crystal Ball Collaboration at MAMI, 2Crystal Ball Collaboration at MAMI, 3Crystal Ball Collaboration at MAMI, 4Crystal Ball Collaboration at MAMI, 5Crystal Ball Collaboration at MAMI, 6Crystal Ball Collaboration at MAMI, 7Crystal Ball Collaboration at MAMI, 8Crystal Ball Collaboration at MAMI, 9Crystal Ball Collaboration at MAMI, 10Crystal Ball Collaboration at MAMI, 11Crystal Ball Collaboration at MAMI, 12Crystal Ball Collaboration at MAMI, 13Crystal Ball Collaboration at MAMI, 14Crystal Ball Collaboration at MAMI, 15Crystal Ball Collaboration at MAMI, 16Crystal Ball Collaboration at MAMI, 17Crystal Ball Collaboration at MAMI, 18Crystal Ball Collaboration at MAMI, 19Crystal Ball Collaboration at MAMI, 20Crystal Ball Collaboration at MAMI, 21Crystal Ball Collaboration at MAMI, 22Crystal Ball Collaboration at MAMI, 23Crystal Ball Collaboration at MAMI, 24Crystal Ball Collaboration at MAMI, 25Crystal Ball Collaboration at MAMI, 26Crystal Ball Collaboration at MAMI, 27Crystal Ball Collaboration at MAMI, 28Crystal Ball Collaboration at MAMI, 29Crystal Ball Collaboration at MAMI, 30Crystal Ball Collaboration at MAMI, 31Crystal Ball Collaboration at MAMI, 32Crystal Ball Collaboration at MAMI, 33Crystal Ball Collaboration at MAMI, 34Crystal Ball Collaboration at MAMI, 35Crystal Ball Collaboration at MAMI, 36Crystal Ball Collaboration at MAMI, 37Crystal Ball Collaboration at MAMI, 38Crystal Ball Collaboration at MAMI, 39Crystal Ball Collaboration at MAMI, 40Crystal Ball Collaboration at MAMI, 41Crystal Ball Collaboration at MAMI, 42Crystal Ball Collaboration at MAMI, 43Crystal Ball Collaboration at MAMI, 44Crystal Ball Collaboration at MAMI, 45Crystal Ball Collaboration at MAMI, 46Crystal Ball Collaboration at MAMI, 47Crystal Ball Collaboration at MAMI, 48Crystal Ball Collaboration at MAMI, 49Crystal Ball Collaboration at MAMI, 50Crystal Ball Collaboration at MAMI, 51Crystal Ball Collaboration at MAMI, 52Crystal Ball Collaboration at MAMI, 53Crystal Ball Collaboration at MAMI, 54Crystal Ball Collaboration at MAMI, 55Crystal Ball Collaboration at MAMI, 56Crystal Ball Collaboration at MAMI, 57Crystal Ball Collaboration at MAMI, 58Crystal Ball Collaboration at MAMI, 59Crystal Ball Collaboration at MAMI, 60Crystal Ball Collaboration at MAMI, 61Crystal Ball Collaboration at MAMI, 62Crystal Ball Collaboration at MAMI, 63Crystal Ball Collaboration at MAMI, 64Crystal Ball Collaboration at MAMI, 65Crystal Ball Collaboration at MAMI, 66Crystal Ball Collaboration at MAMI, 67Crystal Ball Collaboration at MAMI, 68Crystal Ball Collaboration at MAMI, 69Crystal Ball Collaboration at MAMI, 70Crystal Ball Collaboration at MAMI, 71Crystal Ball Collaboration at MAMI, 72Crystal Ball Collaboration at MAMI, 73Crystal Ball Collaboration at MAMI, 74Crystal Ball Collaboration at MAMI, 75Crystal Ball Collaboration at MAMI, 76Crystal Ball Collaboration at MAMI, 77Crystal Ball Collaboration at MAMI, 78Crystal Ball Collaboration at MAMI, 79Crystal Ball Collaboration at MAMI, 80Crystal Ball Collaboration at MAMI, 81Crystal Ball Collaboration at MAMI, 82Crystal Ball Collaboration at MAMI, 83Crystal Ball Collaboration at MAMI, 84Crystal Ball Collaboration at MAMI

The gp-->etap reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold of 707 MeV to 1.4 GeV (1.49 =< W >= 1. Read More