S. Pietri - GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany

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Name
S. Pietri
Affiliation
GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
City
Darmstadt
Country
Germany

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Nuclear Experiment (22)
 
Nuclear Theory (7)
 
Physics - Instrumentation and Detectors (2)
 
Instrumentation and Methods for Astrophysics (1)
 
Solar and Stellar Astrophysics (1)

Publications Authored By S. Pietri

The quenching of the experimental spectroscopic factor for proton emission from the short-lived $d_{3/2}$ isomeric state in $^{151m}$Lu was a long-standing problem. In the present work, proton emission from this isomer has been reinvestigated in an experiment at the Accelerator Laboratory of the University of Jyv\"{a}skyl\"{a}. The proton-decay energy and half-life of this isomer were measured to be 1295(5) keV and 15. Read More

2016Jun
Authors: Marko Röder, Tatsuya Adachi, Yulia Aksyutina, Juan Alcantara, Sebastian Altstadt, Hector Alvarez-Pol, Nicholas Ashwood, Leyla Atar, Thomas Aumann, Vladimir Avdeichikov, M. Barr, Saul Beceiro, Daniel Bemmerer, Jose Benlliure, Carlos Bertulani, Konstanze Boretzky, Maria J. G. Borge, G. Burgunder, Manuel Caamano, Christoph Caesar, Enrique Casarejos, Wilton Catford, Joakim Cederkall, S. Chakraborty, Marielle Chartier, Leonid Chulkov, Dolores Cortina-Gil, Raquel Crespo, Ushasi Datta Pramanik, Paloma Diaz-Fernandez, Iris Dillmann, Zoltan Elekes, Joachim Enders, Olga Ershova, A. Estrade, F. Farinon, Luis M. Fraile, Martin Freer, M. Freudenberger, Hans Fynbo, Daniel Galaviz, Hans Geissel, Roman Gernhäuser, Kathrin Göbel, Pavel Golubev, Diego Gonzalez Diaz, Julius Hagdahl, Tanja Heftrich, Michael Heil, Marcel Heine, Andreas Heinz, Ana Henriques, Matthias Holl, G. Ickert, Alexander Ignatov, Bo Jakobsson, Hakan Johansson, Björn Jonson, Nasser Kalantar-Nayestanaki, Rituparna Kanungo, Aleksandra Kelic-Heil, Ronja Knöbel, Thorsten Kröll, Reiner Krücken, J. Kurcewicz, Nikolaus Kurz, Marc Labiche, Christoph Langer, Tudi Le Bleis, Roy Lemmon, Olga Lepyoshkina, Simon Lindberg, Jorge Machado, Justyna Marganiec, Magdalena Mostazo Caro, Alina Movsesyan, Mohammad Ali Najafi, Thomas Nilsson, Chiara Nociforo, Valerii Panin, Stefanos Paschalis, Angel Perea, Marina Petri, S. Pietri, Ralf Plag, A. Prochazka, Md. Anisur Rahaman, Ganna Rastrepina, Rene Reifarth, Guillermo Ribeiro, M. Valentina Ricciardi, Catherine Rigollet, Karsten Riisager, Dominic Rossi, Jose Sanchez del Rio Saez, Deniz Savran, Heiko Scheit, Haik Simon, Olivier Sorlin, V. Stoica, Branislav Streicher, Jon Taylor, Olof Tengblad, Satoru Terashima, Ronja Thies, Yasuhiro Togano, Ethan Uberseder, J. Van de Walle, Paulo Velho, Vasily Volkov, Andreas Wagner, Felix Wamers, Helmut Weick, Mario Weigand, Carl Wheldon, G. Wilson, Christine Wimmer, J. S. Winfield, Philip Woods, Dmitry Yakorev, Mikhail Zhukov, Andreas Zilges, Kai Zuber

Neutron-rich light nuclei and their reactions play an important role for the creation of chemical elements. Here, data from a Coulomb dissociation experiment on $^{20,21}$N are reported. Relativistic $^{20,21}$N ions impinged on a lead target and the Coulomb dissociation cross section was determined in a kinematically complete experiment. Read More

2016Apr
Authors: M. Heine, S. Typel, M. -R. Wu, T. Adachi, Y. Aksyutina, J. Alcantara, S. Altstadt, H. Alvarez-Pol, N. Ashwood, T. Aumann, V. Avdeichikov, M. Barr, S. Beceiro-Novo, D. Bemmerer, J. Benlliure, C. A. Bertulani, K. Boretzky, M. J. G. Borge, G. Burgunder, M. Caamano, C. Caesar, E. Casarejos, W. Catford, J. Cederkäll, S. Chakraborty, M. Chartier, L. V. Chulkov, D. Cortina-Gil, R. Crespo, U. Datta Pramanik, P. Diaz Fernandez, I. Dillmann, Z. Elekes, J. Enders, O. Ershova, A. Estrade, F. Farinon, L. M. Fraile, M. Freer, M. Freudenberger, H. O. U. Fynbo, D. Galaviz, H. Geissel, R. Gernhäuser, K. Göbel, P. Golubev, D. Gonzalez Diaz, J. Hagdahl, T. Heftrich, M. Heil, A. Heinz, A. Henriques, M. Holl, G. Ickert, A. Ignatov, B. Jakobsson, H. T. Johansson, B. Jonson, N. Kalantar-Nayestanaki, R. Kanungo, A. Kelic-Heil, R. Knöbel, T. Kröll, R. Krücken, J. Kurcewicz, N. Kurz, M. Labiche, C. Langer, T. Le Bleis, R. Lemmon, O. Lepyoshkina, S. Lindberg, J. Machado, J. Marganiec, G. Martínez-Pinedo, V. Maroussov, M. Mostazo, A. Movsesyan, A. Najafi, T. Neff, T. Nilsson, C. Nociforo, V. Panin, S. Paschalis, A. Perea, M. Petri, S. Pietri, R. Plag, A. Prochazka, A. Rahaman, G. Rastrepina, R. Reifarth, G. Ribeiro, M. V. Ricciardi, C. Rigollet, K. Riisager, M. Röder, D. Rossi, J. Sanchez del Rio, D. Savran, H. Scheit, H. Simon, O. Sorlin, V. Stoica, B. Streicher, J. T. Taylor, O. Tengblad, S. Terashima, R. Thies, Y. Togano, E. Uberseder, J. Van de Walle, P. Velho, V. Volkov, A. Wagner, F. Wamers, H. Weick, M. Weigand, C. Wheldon, G. Wilson, C. Wimmer, J. S. Winfield, P. Woods, D. Yakorev, M. V. Zhukov, A. Zilges, K. Zuber

With the R$^{3}$B-LAND setup at GSI we have measured exclusive relative-energy spectra of the Coulomb dissociation of $^{18}$C at a projectile energy around 425~AMeV on a lead target, which are needed to determine the radiative neutron-capture cross sections of $^{17}$C into the ground state of $^{18}$C. Those data have been used to constrain theoretical calculations for transitions populating excited states in $^{18}$C. This allowed to derive the astrophysical cross section $\sigma^{*}_{\mathrm{n}\gamma}$ accounting for the thermal population of $^{17}$C target states in astrophysical scenarios. Read More

2016Mar
Authors: R. Thies, A. Heinz, T. Adachi, Y. Aksyutina, J. Alcantara-Núñes, S. Altstadt, H. Alvarez-Pol, N. Ashwood, T. Aumann, V. Avdeichikov, M. Barr, S. Beceiro-Novo, D. Bemmerer, J. Benlliure, C. A. Bertulani, K. Boretzky, M. J. G. Borge, G. Burgunder, M. Caamano, C. Caesar, E. Casarejos, W. Catford, J. Cederkäll, S. Chakraborty, M. Chartier, L. V. Chulkov, D. Cortina-Gil, R. Crespo, U. Datta, P. Díaz Fernández, I. Dillmann, Z. Elekes, J. Enders, O. Ershova, A. Estradé, F. Farinon, L. M. Fraile, M. Freer, M. Freudenberger, H. O. U. Fynbo, D. Galaviz, H. Geissel, R. Gernhäuser, K. Göbel, P. Golubev, D. Gonzalez Diaz, J. Hagdahl, T. Heftrich, M. Heil, M. Heine, A. Henriques, M. Holl, G. Ickert, A. Ignatov, B. Jakobsson, H. T. Johansson, B. Jonson, N. Kalantar-Nayestanaki, R. Kanungo, R. Knöbel, T. Kröll, R. Krücken, J. Kurcewicz, N. Kurz, M. Labiche, C. Langer, T. Le Bleis, R. Lemmon, O. Lepyoshkina, S. Lindberg, J. Machado, J. Marganiec, V. Maroussov, M. Mostazo, A. Movsesyan, A. Najafi, T. Nilsson, C. Nociforo, V. Panin, S. Paschalis, A. Perea, M. Petri, S. Pietri, R. Plag, A. Prochazka, A. Rahaman, G. Rastrepina, R. Reifarth, G. Ribeiro, M. V. Ricciardi, C. Rigollet, K. Riisager, M. Röder, D. Rossi, J. Sanchez del Rio, D. Savran, H. Scheit, H. Simon, O. Sorlin, V. Stoica, B. Streicher, J. T. Taylor, O. Tengblad, S. Terashima, Y. Togano, E. Uberseder, J. Van de Walle, P. Velho, V. Volkov, A. Wagner, F. Wamers, H. Weick, M. Weigand, C. Wheldon, G. Wilson, C. Wimmer, J. S. Winfield, P. Woods, D. Yakorev, M. V. Zhukov, A. Zilges, K. Zuber

Background: Models describing nuclear fragmentation and fragmentation-fission deliver important input for planning nuclear physics experiments and future radioactive ion beam facilities. These models are usually benchmarked against data from stable beam experiments. In the future, two-step fragmentation reactions with exotic nuclei as stepping stones are a promising tool to reach the most neutron-rich nuclei, creating a need for models to describe also these reactions. Read More

Production cross sections of nitrogen isotopes from high-energy carbon isotopes on hydrogen and carbon targets have been measured for the first time for a wide range of isotopes. The fragment separator FRS at GSI was used to deliver C isotope beams. The cross sections of the production of N isotopes were determined by charge measurements of forward going fragments. Read More

The $\beta$-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with $\beta$-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb and Bi in the mass region N$\gtrsim$126. These are the heaviest species where neutron emission has been observed so far. These measurements provide key information to evaluate the performance of nuclear microscopic and phenomenological models in reproducing the high-energy part of the $\beta$-decay strength distribution. Read More

The beta decay of 31Ar, produced by fragmentation of a 36Ar beam at 880 MeV/nucleon, was investigated. Identified ions of 31Ar were stopped in a gaseous time projection chamber with optical readout allowing to record decay events with emission of protons. In addition to \b{eta}-delayed emission of one and two protons we have clearly observed the beta-delayed three-proton branch. Read More

The possible existence of \eta'-nucleus bound states has been put forward through theoretical and experimental studies. It is strongly related to the \eta' mass at finite density, which is expected to be reduced because of the interplay between the $U_A(1)$ anomaly and partial restoration of chiral symmetry. The investigation of the C(p,d) reaction at GSI and FAIR, as well as an overview of the experimental program at GSI and future plans at FAIR are discussed. Read More

The mass of the {\eta}' meson is theoretically expected to be reduced at finite density, which indicates the existence of {\eta}'-nucleus bound states. To investigate these states, we perform missing-mass spectroscopy for the (p, d) reaction near the {\eta}' production threshold. The overview of the experimental situation is given and the current status is discussed. Read More

2013Oct
Authors: R. Reifarth, S. Altstadt, K. Göbel, T. Heftrich, M. Heil, A. Koloczek, C. Langer, R. Plag, M. Pohl, K. Sonnabend, M. Weigand, T. Adachi, F. Aksouh, J. Al-Khalili, M. AlGarawi, S. AlGhamdi, G. Alkhazov, N. Alkhomashi, H. Alvarez-Pol, R. Alvarez-Rodriguez, V. Andreev, B. Andrei, L. Atar, T. Aumann, V. Avdeichikov, C. Bacri, S. Bagchi, C. Barbieri, S. Beceiro, C. Beck, C. Beinrucker, G. Belier, D. Bemmerer, M. Bendel, J. Benlliure, G. Benzoni, R. Berjillos, D. Bertini, C. Bertulani, S. Bishop, N. Blasi, T. Bloch, Y. Blumenfeld, A. Bonaccorso, K. Boretzky, A. Botvina, A. Boudard, P. Boutachkov, I. Boztosun, A. Bracco, S. Brambilla, J. Briz Monago, M. Caamano, C. Caesar, F. Camera, E. Casarejos, W. Catford, J. Cederkall, B. Cederwall, M. Chartier, A. Chatillon, M. Cherciu, L. Chulkov, P. Coleman-Smith, D. Cortina-Gil, F. Crespi, R. Crespo, J. Cresswell, M. Csatlós, F. Déchery, B. Davids, T. Davinson, V. Derya, P. Detistov, P. Diaz Fernandez, D. DiJulio, S. Dmitry, D. Doré, J. Duenas, E. Dupont, P. Egelhof, I. Egorova, Z. Elekes, J. Enders, J. Endres, S. Ershov, O. Ershova, B. Fernandez-Dominguez, A. Fetisov, E. Fiori, A. Fomichev, M. Fonseca, L. Fraile, M. Freer, J. Friese, M. G. Borge, D. Galaviz Redondo, S. Gannon, U. Garg, I. Gasparic, L. Gasques, B. Gastineau, H. Geissel, R. Gernhäuser, T. Ghosh, M. Gilbert, J. Glorius, P. Golubev, A. Gorshkov, A. Gourishetty, L. Grigorenko, J. Gulyas, M. Haiduc, F. Hammache, M. Harakeh, M. Hass, M. Heine, A. Hennig, A. Henriques, R. Herzberg, M. Holl, A. Ignatov, A. Ignatyuk, S. Ilieva, M. Ivanov, N. Iwasa, B. Jakobsson, H. Johansson, B. Jonson, P. Joshi, A. Junghans, B. Jurado, G. Körner, N. Kalantar, R. Kanungo, A. Kelic-Heil, K. Kezzar, E. Khan, A. Khanzadeev, O. Kiselev, M. Kogimtzis, D. Körper, S. Kräckmann, T. Kröll, R. Krücken, A. Krasznahorkay, J. Kratz, D. Kresan, T. Krings, A. Krumbholz, S. Krupko, R. Kulessa, S. Kumar, N. Kurz, E. Kuzmin, M. Labiche, K. Langanke, I. Lazarus, T. Le Bleis, C. Lederer, A. Lemasson, R. Lemmon, V. Liberati, Y. Litvinov, B. Löher, J. Lopez Herraiz, G. Münzenberg, J. Machado, E. Maev, K. Mahata, D. Mancusi, J. Marganiec, M. Martinez Perez, V. Marusov, D. Mengoni, B. Million, V. Morcelle, O. Moreno, A. Movsesyan, E. Nacher, M. Najafi, T. Nakamura, F. Naqvi, E. Nikolski, T. Nilsson, C. Nociforo, P. Nolan, B. Novatsky, G. Nyman, A. Ornelas, R. Palit, S. Pandit, V. Panin, C. Paradela, V. Parkar, S. Paschalis, P. Pawłowski, A. Perea, J. Pereira, C. Petrache, M. Petri, S. Pickstone, N. Pietralla, S. Pietri, Y. Pivovarov, P. Potlog, A. Prokofiev, G. Rastrepina, T. Rauscher, G. Ribeiro, M. Ricciardi, A. Richter, C. Rigollet, K. Riisager, A. Rios, C. Ritter, T. Rodríguez Frutos, J. Rodriguez Vignote, M. Röder, C. Romig, D. Rossi, P. Roussel-Chomaz, P. Rout, S. Roy, P. Söderström, M. Saha Sarkar, S. Sakuta, M. Salsac, J. Sampson, J. Sanchez del Rio Saez, J. Sanchez Rosado, S. Sanjari, P. Sarriguren, A. Sauerwein, D. Savran, C. Scheidenberger, H. Scheit, S. Schmidt, C. Schmitt, L. Schnorrenberger, P. Schrock, R. Schwengner, D. Seddon, B. Sherrill, A. Shrivastava, S. Sidorchuk, J. Silva, H. Simon, E. Simpson, P. Singh, D. Slobodan, D. Sohler, M. Spieker, D. Stach, E. Stan, M. Stanoiu, S. Stepantsov, P. Stevenson, F. Strieder, L. Stuhl, T. Suda, K. Sümmerer, B. Streicher, J. Taieb, M. Takechi, I. Tanihata, J. Taylor, O. Tengblad, G. Ter-Akopian, S. Terashima, P. Teubig, R. Thies, M. Thoennessen, T. Thomas, J. Thornhill, G. Thungstrom, J. Timar, Y. Togano, U. Tomohiro, T. Tornyi, J. Tostevin, C. Townsley, W. Trautmann, T. Trivedi, S. Typel, E. Uberseder, J. Udias, T. Uesaka, L. Uvarov, Z. Vajta, P. Velho, V. Vikhrov, M. Volknandt, V. Volkov, P. von Neumann-Cosel, M. von Schmid, A. Wagner, F. Wamers, H. Weick, D. Wells, L. Westerberg, O. Wieland, M. Wiescher, C. Wimmer, K. Wimmer, J. S. Winfield, M. Winkel, P. Woods, R. Wyss, D. Yakorev, M. Yavor, J. Zamora Cardona, I. Zartova, T. Zerguerras, I. Zgura, A. Zhdanov, M. Zhukov, M. Zieblinski, A. Zilges, K. Zuber

The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process beta-decay chains. These nuclei are attributed to the p and rp process. Read More

The rapid neutron nucleosynthesis process involves an enormous amount of very exotic neutron-rich nuclei, which represent a theoretical and experimental challenge. Two of the main decay properties that affect the final abundance distribution the most are half-lives and neutron branching ratios. Using fragmentation of a primary $^{238}$U beam at GSI we were able to measure such properties for several neutron-rich nuclei from $^{208}$Hg to $^{218}$Pb. Read More

2012Sep
Authors: C. Caesar1, J. Simonis2, T. Adachi3, Y. Aksyutina4, J. Alcantara5, S. Altstadt6, H. Alvarez-Pol7, N. Ashwood8, T. Aumann9, V. Avdeichikov10, M. Barr11, S. Beceiro12, D. Bemmerer13, J. Benlliure14, C. A. Bertulani15, K. Boretzky16, M. J. G. Borge17, G. Burgunder18, M. Caamano19, E. Casarejos20, W. Catford21, J. Cederkäll22, S. Chakraborty23, M. Chartier24, L. Chulkov25, D. Cortina-Gil26, U. Datta Pramanik27, P. Diaz Fernandez28, I. Dillmann29, Z. Elekes30, J. Enders31, O. Ershova32, A. Estrade33, F. Farinon34, L. M. Fraile35, M. Freer36, M. Freudenberger37, H. O. U. Fynbo38, D. Galaviz39, H. Geissel40, R. Gernhäuser41, P. Golubev42, D. Gonzalez Diaz43, J. Hagdahl44, T. Heftrich45, M. Heil46, M. Heine47, A. Heinz48, A. Henriques49, M. Holl50, J. D. Holt51, G. Ickert52, A. Ignatov53, B. Jakobsson54, H. T. Johansson55, B. Jonson56, N. Kalantar-Nayestanaki57, R. Kanungo58, A. Kelic-Heil59, R. Knöbel60, T. Kröll61, R. Krücken62, J. Kurcewicz63, M. Labiche64, C. Langer65, T. Le Bleis66, R. Lemmon67, O. Lepyoshkina68, S. Lindberg69, J. Machado70, J. Marganiec71, V. Maroussov72, J. Menéndez73, M. Mostazo74, A. Movsesyan75, A. Najafi76, T. Nilsson77, C. Nociforo78, V. Panin79, A. Perea80, S. Pietri81, R. Plag82, A. Prochazka83, A. Rahaman84, G. Rastrepina85, R. Reifarth86, G. Ribeiro87, M. V. Ricciardi88, C. Rigollet89, K. Riisager90, M. Röder91, D. M. Rossi92, J. Sanchez del Rio93, D. Savran94, H. Scheit95, A. Schwenk96, H. Simon97, O. Sorlin98, V. Stoica99, B. Streicher100, J. Taylor101, O. Tengblad102, S. Terashima103, R. Thies104, Y. Togano105, E. Uberseder106, J. Van de Walle107, P. Velho108, V. Volkov109, A. Wagner110, F. Wamers111, H. Weick112, M. Weigand113, C. Wheldon114, G. Wilson115, C. Wimmer116, J. S. Winfield117, P. Woods118, D. Yakorev119, M. V. Zhukov120, A. Zilges121, M. Zoric122, K. Zuber123, R3B collaboration
Affiliations: 1Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 2Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 3KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands, 4GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 5Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain, 6Goethe-Universität Frankfurt am Main, 60438 Frankfurt am Main, Germany, 7Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain, 8School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom, 9Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 10Department of Physics, Lund University, S-22100 Lund, Sweden, 11School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom, 12Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain, 13Helmholtz-Zentrum Dresden-Rossendorf, D-01328 Dresden, Germany, 14Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain, 15Department of Physics and Astronomy, Texas A\&M University-Commerce, Commerce, Texas 75429, USA, 16GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 17Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain, 18Grand Accélérateur National d'Ions Lourds, 19Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain, 20University of Vigo, E-36310 Vigo, Spain, 21Department of Physics, University of Surrey, Guildford GU2 5FH, United Kingdom, 22Department of Physics, Lund University, S-22100 Lund, Sweden, 23Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata-700064, India, 24Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, 25Kurchatov Institute, Ru-123182 Moscow, Russia, 26Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain, 27Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata-700064, India, 28Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain, 29GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 30Helmholtz-Zentrum Dresden-Rossendorf, D-01328 Dresden, Germany, 31Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 32Goethe-Universität Frankfurt am Main, 60438 Frankfurt am Main, Germany, 33GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 34GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 35Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 36School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom, 37Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 38Department of Physics and Astronomy, Aarhus University, DK-8000 Århus C, Denmark, 39Centro de Fisica Nuclear, University of Lisbon, P-1649-003 Lisbon, Portugal, 40GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 41Physik Department E12, Technische Universität München, 85748 Garching, Germany, 42Department of Physics, Lund University, S-22100 Lund, Sweden, 43Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 44Fundamental Fysik, Chalmers Tekniska Högskola, S-412 96 Göteborg, Sweden, 45Goethe-Universität Frankfurt am Main, 60438 Frankfurt am Main, Germany, 46GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 47Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 48Fundamental Fysik, Chalmers Tekniska Högskola, S-412 96 Göteborg, Sweden, 49Centro de Fisica Nuclear, University of Lisbon, P-1649-003 Lisbon, Portugal, 50Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 51Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA, 52GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 53Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 54Department of Physics, Lund University, S-22100 Lund, Sweden, 55Fundamental Fysik, Chalmers Tekniska Högskola, S-412 96 Göteborg, Sweden, 56Fundamental Fysik, Chalmers Tekniska Högskola, S-412 96 Göteborg, Sweden, 57KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands, 58Astronomy and Physics Department, Saint Mary's University, Halifax, NS B3H 3C3, Canada, 59GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 60GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 61Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 62Physik Department E12, Technische Universität München, 85748 Garching, Germany, 63GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 64STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom, 65Goethe-Universität Frankfurt am Main, 60438 Frankfurt am Main, Germany, 66Physik Department E12, Technische Universität München, 85748 Garching, Germany, 67STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom, 68Physik Department E12, Technische Universität München, 85748 Garching, Germany, 69Fundamental Fysik, Chalmers Tekniska Högskola, S-412 96 Göteborg, Sweden, 70Centro de Fisica Nuclear, University of Lisbon, P-1649-003 Lisbon, Portugal, 71ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany, 72Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany, 73Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 74Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain, 75Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 76KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands, 77Fundamental Fysik, Chalmers Tekniska Högskola, S-412 96 Göteborg, Sweden, 78GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 79Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 80Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain, 81GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 82Goethe-Universität Frankfurt am Main, 60438 Frankfurt am Main, Germany, 83GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 84Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata-700064, India, 85GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 86Goethe-Universität Frankfurt am Main, 60438 Frankfurt am Main, Germany, 87Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain, 88GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 89KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands, 90Department of Physics and Astronomy, Aarhus University, DK-8000 Århus C, Denmark, 91Institut fur Kern- und Teilchenphysik, Technische Universität, 01069 Dresden, Germany, 92GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 93Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain, 94ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany, 95Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 96ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany, 97GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 98Grand Accélérateur National d'Ions Lourds, 99KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands, 100KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands, 101Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom, 102Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain, 103GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 104Fundamental Fysik, Chalmers Tekniska Högskola, S-412 96 Göteborg, Sweden, 105ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany, 106Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA, 107KVI, University of Groningen, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands, 108Centro de Fisica Nuclear, University of Lisbon, P-1649-003 Lisbon, Portugal, 109Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 110Helmholtz-Zentrum Dresden-Rossendorf, D-01328 Dresden, Germany, 111Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, 112GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 113Goethe-Universität Frankfurt am Main, 60438 Frankfurt am Main, Germany, 114School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom, 115Department of Physics, University of Surrey, Guildford GU2 5XH, United Kingdom, 116Goethe-Universität Frankfurt am Main, 60438 Frankfurt am Main, Germany, 117GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 118School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom, 119Helmholtz-Zentrum Dresden-Rossendorf, D-01328 Dresden, Germany, 120Fundamental Fysik, Chalmers Tekniska Högskola, S-412 96 Göteborg, Sweden, 121Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany, 122GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany, 123Institut fur Kern- und Teilchenphysik, Technische Universität, 01069 Dresden, Germany

The very neutron-rich oxygen isotopes 25O and 26O are investigated experimentally and theoret- ically. In this first R3B-LAND experiment, the unbound states are populated at GSI via proton- knockout reactions from 26F and 27F at relativistic energies around 450 MeV/nucleon. From the kinematically complete measurement of the decay into 24O plus one or two neutrons, the 25O ground- state energy and lifetime are determined, and upper limits for the 26O ground state are extracted. Read More

With a new detector setup and the high-resolution performance of the fragment separator FRS at GSI we discovered 57 new isotopes in the atomic number range of 60$\leq Z \leq 78$: \nuc{159-161}{Nb}, \nuc{160-163}{Pm}, \nuc{163-166}Sm, \nuc{167-168}{Eu}, \nuc{167-171}{Gd}, \nuc{169-171}{Tb}, \nuc{171-174}{Dy}, \nuc{173-176}{Ho}, \nuc{176-178}{Er}, \nuc{178-181}{Tm}, \nuc{183-185}{Yb}, \nuc{187-188}{Lu}, \nuc{191}{Hf}, \nuc{193-194}{Ta}, \nuc{196-197}{W}, \nuc{199-200}{Re}, \nuc{201-203}{Os}, \nuc{204-205}{Ir} and \nuc{206-209}{Pt}. The new isotopes have been unambiguously identified in reactions with a $^{238}$U beam impinging on a Be target at 1 GeV/u. The isotopic production cross-section for the new isotopes have been measured and compared with predictions of different model calculations. Read More

2011Nov
Authors: S. Akkoyun, A. Algora, B. Alikhani, F. Ameil, G. de Angelis, L. Arnold, A. Astier, A. Ataç, Y. Aubert, C. Aufranc, A. Austin, S. Aydin, F. Azaiez, S. Badoer, D. L. Balabanski, D. Barrientos, G. Baulieu, R. Baumann, D. Bazzacco, F. A. Beck, T. Beck, P. Bednarczyk, M. Bellato, M. A. Bentley, G. Benzoni, R. Berthier, L. Berti, R. Beunard, G. Lo Bianco, B. Birkenbach, P. G. Bizzeti, A. M. Bizzeti-Sona, F. Le Blanc, J. M. Blasco, N. Blasi, D. Bloor, C. Boiano, M. Borsato, D. Bortolato, A. J. Boston, H. C. Boston, P. Bourgault, P. Boutachkov, A. Bouty, A. Bracco, S. Brambilla, I. P. Brawn, A. Brondi, S. Broussard, B. Bruyneel, D. Bucurescu, I. Burrows, A. Bürger, S. Cabaret, B. Cahan, E. Calore, F. Camera, A. Capsoni, F. Carrió, G. Casati, M. Castoldi, B. Cederwall, J. -L. Cercus, V. Chambert, M. El Chambit, R. Chapman, L. Charles, J. Chavas, E. Clément, P. Cocconi, S. Coelli, P. J. Coleman-Smith, A. Colombo, S. Colosimo, C. Commeaux, D. Conventi, R. J. Cooper, A. Corsi, A. Cortesi, L. Costa, F. C. L. Crespi, J. R. Cresswell, D. M. Cullen, D. Curien, A. Czermak, D. Delbourg, R. Depalo, T. Descombes, P. Désesquelles, P. Detistov, C. Diarra, F. Didierjean, M. R. Dimmock, Q. T. Doan, C. Domingo-Pardo, M. Doncel, F. Dorangeville, N. Dosme, Y. Drouen, G. Duchêne, B. Dulny, J. Eberth, P. Edelbruck, J. Egea, T. Engert, M. N. Erduran, S. Ertürk, C. Fanin, S. Fantinel, E. Farnea, T. Faul, M. Filliger, F. Filmer, Ch. Finck, G. de France, A. Gadea, W. Gast, A. Geraci, J. Gerl, R. Gernhäuser, A. Giannatiempo, A. Giaz, L. Gibelin, A. Givechev, N. Goel, V. González, A. Gottardo, X. Grave, J. Grȩbosz, R. Griffiths, A. N. Grint, P. Gros, L. Guevara, M. Gulmini, A. Görgen, H. T. M. Ha, T. Habermann, L. J. Harkness, H. Harroch, K. Hauschild, C. He, A. Hernández-Prieto, B. Hervieu, H. Hess, T. Hüyük, E. Ince, R. Isocrate, G. Jaworski, A. Johnson, J. Jolie, P. Jones, B. Jonson, P. Joshi, D. S. Judson, A. Jungclaus, M. Kaci, N. Karkour, M. Karolak, A. Kaşkaş, M. Kebbiri, R. S. Kempley, A. Khaplanov, S. Klupp, M. Kogimtzis, I. Kojouharov, A. Korichi, W. Korten, Th. Kröll, R. Krücken, N. Kurz, B. Y. Ky, M. Labiche, X. Lafay, L. Lavergne, I. H. Lazarus, S. Leboutelier, F. Lefebvre, E. Legay, L. Legeard, F. Lelli, S. M. Lenzi, S. Leoni, A. Lermitage, D. Lersch, J. Leske, S. C. Letts, S. Lhenoret, R. M. Lieder, D. Linget, J. Ljungvall, A. Lopez-Martens, A. Lotodé, S. Lunardi, A. Maj, J. van der Marel, Y. Mariette, N. Marginean, R. Marginean, G. Maron, A. R. Mather, W. Mȩczyński, V. Mendéz, P. Medina, B. Melon, R. Menegazzo, D. Mengoni, E. Merchan, L. Mihailescu, C. Michelagnoli, J. Mierzejewski, L. Milechina, B. Million, K. Mitev, P. Molini, D. Montanari, S. Moon, F. Morbiducci, R. Moro, P. S. Morrall, O. Möller, A. Nannini, D. R. Napoli, L. Nelson, M. Nespolo, V. L. Ngo, M. Nicoletto, R. Nicolini, Y. Le Noa, P. J. Nolan, M. Norman, J. Nyberg, A. Obertelli, A. Olariu, R. Orlandi, D. C. Oxley, C. Özben, M. Ozille, C. Oziol, E. Pachoud, M. Palacz, J. Palin, J. Pancin, C. Parisel, P. Pariset, G. Pascovici, R. Peghin, L. Pellegri, A. Perego, S. Perrier, M. Petcu, P. Petkov, C. Petrache, E. Pierre, N. Pietralla, S. Pietri, M. Pignanelli, I. Piqueras, Z. Podolyak, P. Le Pouhalec, J. Pouthas, D. Pugnére, V. F. E. Pucknell, A. Pullia, B. Quintana, R. Raine, G. Rainovski, L. Ramina, G. Rampazzo, G. La Rana, M. Rebeschini, F. Recchia, N. Redon, M. Reese, P. Reiter, P. H. Regan, S. Riboldi, M. Richer, M. Rigato, S. Rigby, G. Ripamonti, A. P. Robinson, J. Robin, J. Roccaz, J. -A. Ropert, B. Rossé, C. Rossi Alvarez, D. Rosso, B. Rubio, D. Rudolph, F. Saillant, E. Şahin, F. Salomon, M. -D. Salsac, J. Salt, G. Salvato, J. Sampson, E. Sanchis, C. Santos, H. Schaffner, M. Schlarb, D. P. Scraggs, D. Seddon, M. Şenyiğit, M. -H. Sigward, G. Simpson, J. Simpson, M. Slee, J. F. Smith, P. Sona, B. Sowicki, P. Spolaore, C. Stahl, T. Stanios, E. Stefanova, O. Stézowski, J. Strachan, G. Suliman, P. -A. Söderström, J. L. Tain, S. Tanguy, S. Tashenov, Ch. Theisen, J. Thornhill, F. Tomasi, N. Toniolo, R. Touzery, B. Travers, A. Triossi, M. Tripon, K. M. M. Tun-Lanoë, M. Turcato, C. Unsworth, C. A. Ur, J. J. Valiente-Dobon, V. Vandone, E. Vardaci, R. Venturelli, F. Veronese, Ch. Veyssiere, E. Viscione, R. Wadsworth, P. M. Walker, N. Warr, C. Weber, D. Weisshaar, D. Wells, O. Wieland, A. Wiens, G. Wittwer, H. J. Wollersheim, F. Zocca, N. V. Zamfir, M. Ziȩbliński, A. Zucchiatti

The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate the next generation gamma-ray spectrometer. AGATA is based on the technique of gamma-ray energy tracking in electrically segmented high-purity germanium crystals. This technique requires the accurate determination of the energy, time and position of every interaction as a gamma ray deposits its energy within the detector volume. Read More

The yrast sequence of the neutron-rich dysprosium isotope 168Dy has been studied using multi-nucleon transfer reactions following collisions between a 460-MeV 82Se beam and a 170Er target. The reaction products were identified using the PRISMA magnetic spectrometer and the gamma rays detected using the CLARA HPGe-detector array. The 2+ and 4+ members of the previously measured ground state rotational band of 168Dy have been confirmed and the yrast band extended up to 10+. Read More

The spallation of $^{56}$Fe in collisions with hydrogen at 1 A GeV has been studied in inverse kinematics with the large-aperture setup SPALADIN at GSI. Coincidences of residues with low-center-of-mass kinetic energy light particles and fragments have been measured allowing the decomposition of the total reaction cross-section into the different possible de-excitation channels. Detailed information on the evolution of these de-excitation channels with excitation energy has also been obtained. Read More