R. D. Page - University of Oklahoma

R. D. Page
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Name
R. D. Page
Affiliation
University of Oklahoma
City
Guthrie
Country
United States

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Pub Categories

 
Nuclear Experiment (10)
 
High Energy Physics - Experiment (5)
 
Physics - Instrumentation and Detectors (4)
 
Nuclear Theory (3)
 
Physics - Atomic Physics (2)
 
Computer Science - Software Engineering (1)
 
Physics - Plasma Physics (1)
 
Computer Science - Programming Languages (1)
 
Physics - Mesoscopic Systems and Quantum Hall Effect (1)
 
Quantum Physics (1)
 
Computer Science - Computers and Society (1)
 
Physics - Fluid Dynamics (1)

Publications Authored By R. D. Page

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

A new technique of elucidating $\beta$-decay schemes of isotopes with large density of states at low excitation energies has been developed, in which a Broad Energy Germanium (BEGe) detector is used in conjunction with coaxial hyper-pure germanium detectors. The power of this technique has been demonstrated on the example of 183Hg decay. Mass-separated samples of 183Hg were produced by a deposition of the low-energy radioactive-ion beam delivered by the ISOLDE facility at CERN. Read More

The NA62 experiment at CERN aims to make a precision measurement of the ultra-rare decay $K^{+} \rightarrow \pi^{+}\nu\overline{\nu}$, and relies on a differential Cherenkov detector (KTAG) to identify charged kaons at an average rate of 50 MHz in a 750 MHz unseparated hadron beam. The experimental sensitivity of NA62 to K-decay branching ratios (BR) of $10^{-11}$ requires a time resolution for the KTAG of better than 100 ps, an efficiency better than 95% and a contamination of the kaon sample that is smaller than $10^{-4}$. A prototype version of the detector was tested in 2012, during the first NA62 technical run, in which the required resolution of 100 ps was achieved and the necessary functionality of the light collection system and electronics was demonstrated. Read More

We report bulk, room-temperature hyperpolarization of 13C nuclear spins observed via high-field nuclear magnetic resonance (NMR). The hyperpolarization is achieved by optical pumping (OP) of nitrogen vacancy defect centers in diamond accompanied by dynamic nuclear polarization (DNP). The technique harnesses the large optically-induced spin polarization of NV- centers at room temperature, which is many orders of magnitude greater than thermal equilibrium polarization and typically achievable only at sub-Kelvin temperatures. Read More

2014Nov
Authors: G. Aglieri Rinella, R. Aliberti, F. Ambrosino, B. Angelucci, A. Antonelli, G. Anzivino, R. Arcidiacono, I. Azhinenko, S. Balev, J. Bendotti, A. Biagioni, C. Biino, A. Bizzeti, T. Blazek, A. Blik, B. Bloch-Devaux, V. Bolotov, V. Bonaiuto, M. Bragadireanu, D. Britton, G. Britvich, N. Brook, F. Bucci, V. Buescher, F. Butin, E. Capitolo, C. Capoccia, T. Capussela, V. Carassiti, N. Cartiglia, A. Cassese, A. Catinaccio, A. Cecchetti, A. Ceccucci, P. Cenci, V. Cerny, C. Cerri, O. Chikilev, R. Ciaranfi, G. Collazuol, P. Cooke, P. Cooper, G. Corradi, E. Cortina Gil, F. Costantini, A. Cotta Ramusino, D. Coward, G. D'Agostini, J. Dainton, P. Dalpiaz, H. Danielsson, J. Degrange, N. De Simone, D. Di Filippo, L. Di Lella, N. Dixon, N. Doble, V. Duk, V. Elsha, J. Engelfried, T. Enik, V. Falaleev, R. Fantechi, L. Federici, M. Fiorini, J. Fry, A. Fucci, L. Fulton, S. Gallorini, L. Gatignon, A. Gianoli, S. Giudici, L. Glonti, A. Goncalves Martins, F. Gonnella, E. Goudzovski, R. Guida, E. Gushchin, F. Hahn, B. Hallgren, H. Heath, F. Herman, D. Hutchcroft, E. Iacopini, O. Jamet, P. Jarron, K. Kampf, J. Kaplon, V. Karjavin, V. Kekelidze, S. Kholodenko, G. Khoriauli, A. Khudyakov, Yu. Kiryushin, K. Kleinknecht, A. Kluge, M. Koval, V. Kozhuharov, M. Krivda, Y. Kudenko, J. Kunze, G. Lamanna, C. Lazzeroni, R. Leitner, R. Lenci, M. Lenti, E. Leonardi, P. Lichard, R. Lietava, L. Litov, D. Lomidze, A. Lonardo, N. Lurkin, D. Madigozhin, G. Maire, A. Makarov, I. Mannelli, G. Mannocchi, A. Mapelli, F. Marchetto, P. Massarotti, K. Massri, P. Matak, G. Mazza, E. Menichetti, M. Mirra, M. Misheva, N. Molokanova, J. Morant, M. Morel, M. Moulson, S. Movchan, D. Munday, M. Napolitano, F. Newson, A. Norton, M. Noy, G. Nuessle, V. Obraztsov, S. Padolski, R. Page, V. Palladino, A. Pardons, E. Pedreschi, M. Pepe, F. Perez Gomez, M. Perrin-Terrin, P. Petrov, F. Petrucci, R. Piandani, M. Piccini, D. Pietreanu, J. Pinzino, M. Pivanti, I. Polenkevich, I. Popov, Yu. Potrebenikov, D. Protopopescu, F. Raffaelli, M. Raggi, P. Riedler, A. Romano, P. Rubin, G. Ruggiero, V. Russo, V. Ryjov, A. Salamon, G. Salina, V. Samsonov, E. Santovetti, G. Saracino, F. Sargeni, S. Schifano, V. Semenov, A. Sergi, M. Serra, S. Shkarovskiy, A. Sotnikov, V. Sougonyaev, M. Sozzi, T. Spadaro, F. Spinella, R. Staley, M. Statera, P. Sutcliffe, N. Szilasi, D. Tagnani, M. Valdata-Nappi, P. Valente, M. Vasile, V. Vassilieva, B. Velghe, M. Veltri, S. Venditti, M. Vormstein, H. Wahl, R. Wanke, P. Wertelaers, A. Winhart, R. Winston, B. Wrona, O. Yushchenko, M. Zamkovsky, A. Zinchenko

The NA62 experiment will begin taking data in 2015. Its primary purpose is a 10% measurement of the branching ratio of the ultrarare kaon decay $K^+ \to \pi^+ \nu \bar{ \nu }$, using the decay in flight of kaons in an unseparated beam with momentum 75 GeV/c.The detector and analysis technique are described here. Read More

The neutron-deficient mercury isotopes, $^{184,186}$Hg, were studied with the Recoil Distance Doppler Shift (RDDS) method using the Gammasphere array and the K\"oln Plunger device. The Differential Decay Curve Method (DDCM) was employed to determine the lifetimes of the yrast states in $^{184,186}$Hg. An improvement on previously measured values of yrast states up to $8^{+}$ is presented as well as first values for the $9_{3}$ state in $^{184}$Hg and $10^{+}$ state in $^{186}$Hg. Read More

2013Jan
Affiliations: 1University of Oklahoma, 2University of Wyoming

What would you teach if you had only one course to help students grasp the essence of computation and perhaps inspire a few of them to make computing a subject of further study? Assume they have the standard college prep background. This would include basic algebra, but not necessarily more advanced mathematics. They would have written a few term papers, but would not have written computer programs. Read More

The a-decay chains originating from the s1/2 and h11/2 states in 173Au have been investigated following fusion-evaporation reactions. Four generations of a radioactivities have been correlated with 173Aum leading to a measurement of the a decay of 161Tam. It has been found that the known a decay of 161Ta, which was previously associated with the decay of the ground state, is in fact the decay of an isomeric state. Read More

We determine the flow structure in an axisymmetric diffuser or expansion region connecting two cylindrical pipes when the inlet flow is a solid body rotation with a uniform axial flow of speeds Omega and U, respectively. A quasi-cylindrical approximation is made in order to solve the steady Euler equation, mainly the Bragg-Hawthorne equation. As in our previous work on the cylindrical region downstream [R Gonz\'alez et al. Read More

The neutron-deficient nucleus 173Hg has been studied following fusion-evaporation reactions. The observation of gamma rays decaying from excited states are reported for the first time and a tentative level scheme is proposed. The proposed level scheme is discussed within the context of the systematics of neighbouring neutron-deficient Hg nuclei. Read More

2012Jan
Authors: J. Aguilar, P. Ambalathankandy, T. Fiutowski, M. Idzik, Sz. Kulis, D. Przyborowski, K. Swientek, A. Bamberger, M. Köhli, M. Lupberger, U. Renz, M. Schumacher, Andreas Zwerger, A. Calderone, D. G. Cussans, H. F. Heath, S. Mandry, R. F. Page, J. J. Velthuis, D. Attié, D. Calvet, P. Colas, X. Coppolani, Y. Degerli, E. Delagnes, M. Gelin, I. Giomataris, P. Lutz, F. Orsini, M. Rialot, F. Senée, W. Wang, J. Alozy, J. Apostolakis, P. Aspell, F. Bergsma, M. Campbell, F. Formenti, H. Franca Santos, E. Garcia Garcia, M. de Gaspari, P. -A. Giudice, Ch. Grefe, V. Grichine, M. Hauschild, V. Ivantchenko, A. Kehrli, K. Kloukinas, L. Linssen, X. Llopart Cudie, A. Marchioro, L. Musa, A. Ribon, G. Trampitsch, V. Uzhinskiy, M. Anduze, E. Beyer, A. Bonnemaison, V. Boudry, J. -C. Brient, A. Cauchois, C. Clerc, R. Cornat, M. Frotin, F. Gastaldi, C. Jauffret, D. Jeans, A. Karar, A. Mathieu, P. Mora de Freitas, G. Musat, A. Rougé, M. Ruan, J. -C. Vanel, H. Videau, A. Besson, G. Claus. R. de Masi, G. Doziere, W. Dulinski, M. Goffe, A. Himmi, Ch. Hu-Guo, F. Morel, I. Valin, M. Winter, J. Bonis, S. Callier, P. Cornebise, F. Dulucq, M. Faucci Giannelli, J. Fleury, G. Guilhem, G. Martin-Chassard, Ch. de la Taille, R. Pöschl, L. Raux, N. Seguin-Moreau, F. Wicek, M. Benyamna, J. Bonnard, C. Cârloganu, F. Fehr, P. Gay, S. Mannen, L. Royer, A. Charpy, W. Da Silva, J. David, M. Dhellot, D. Imbault, P. Ghislain, F. Kapusta, T. Hung Pham, A. Savoy-Navarro, R. Sefri, D. Dzahini, J. Giraud, D. Grondin, J. -Y. Hostachy, L. Morin, D. Bassignana, G. Pellegrini, M. Lozano, D. Quirion, M. Fernandez, R. Jaramillo, F. J. Munoz, I. Vila, Z. Dolezal, Z. Drasal, P. Kodys, P. Kvasnicka, S. Aplin, O. Bachynska, T. Behnke, J. Behr, K. Dehmelt, J. Engels, K. Gadow, F. Gaede, E. Garutti, P. Göttlicher, I. -M. Gregor, T. Haas, H. Henschel, U. Koetz, W. Lange, V. Libov, W. Lohmann, B. Lutz, J. Mnich, C. Muhl, M. Ohlerich, N. Potylitsina-Kube, V. Prahl, M. Reinecke, P. Roloff, Ch. Rosemann, Igor Rubinski, P. Schade, S. Schuwalov, F. Sefkow, M. Terwort, R. Volkenborn, J. Kalliopuska, P. Mehtaelae, R. Orava, N. van Remortel, J. Cvach, M. Janata, J. Kvasnicka, M. Marcisovsky, I. Polak, P. Sicho, J. Smolik, V. Vrba, J. Zalesak, T. Bergauer, M. Dragicevic, M. Friedl, S. Haensel, C. Irmler, W. Kiesenhofer, M. Krammer, M. Valentan, L. Piemontese, A. Cotta-Ramusino, A. Bulgheroni, M. Jastrzab, M. Caccia, V. Re, L. Ratti, G. Traversi, J. -P. Dewulf, X. Janssen, G. De Lentdecker, Y. Yang, L. Bryngemark, P. Christiansen, P. Gross, L. Jönsson, M. Ljunggren, B. Lundberg, U. Mjörnmark, A. Oskarsson, T. Richert, E. Stenlund, L. Österman, S. Rummel, R. Richter, L. Andricek, J. Ninkovich, Ch. Koffmane, H. -G. Moser, V. Boisvert, B. Green, M. G. Green, A. Misiejuk, T. Wu, Y. Bilevych, V. M. Blanco Carballo, M. Chefdeville, L. de Nooij, M. Fransen, F. Hartjes, H. van der Graaf, J. Timmermans, H. Abramowicz, Y. Ben-Hamu, I. Jikhleb, S. Kananov, A. Levy, I. Levy, I. Sadeh, R. Schwartz, A. Stern, M. J. Goodrick, L. B. A. Hommels, R. Shaw. D. R. Ward, W. Daniluk, E. Kielar, J. Kotula, A. Moszczynski, K. Oliwa, B. Pawlik, W. Wierba, L. Zawiejski, D. S. Bailey, M. Kelly, G. Eigen, Ch. Brezina, K. Desch, J. Furletova, J. Kaminski, M. Killenberg, F. Köckner, T. Krautscheid, H. Krüger, L. Reuen, P. Wienemann, R. Zimmermann, S. Zimmermann, V. Bartsch, M. Postranecky, M. Warren, M. Wing, E. Corrin, D. Haas, M. Pohl, R. Diener, P. Fischer, I. Peric, A. Kaukher, O. Schäfer, H. Schröder, R. Wurth, A. F. Zarnecki

The EUDET-project was launched to create an infrastructure for developing and testing new and advanced detector technologies to be used at a future linear collider. The aim was to make possible experimentation and analysis of data for institutes, which otherwise could not be realized due to lack of resources. The infrastructure comprised an analysis and software network, and instrumentation infrastructures for tracking detectors as well as for calorimetry. Read More

2011Sep

Accurate programming is a practical approach to producing high quality programs. It combines ideas from test-automation, test-driven development, agile programming, and other state of the art software development methods. In addition to building on approaches that have proven effective in practice, it emphasizes concepts that help programmers sharpen their understanding of both the problems they are solving and the solutions they come up with. Read More

In-source resonant ionization laser spectroscopy of the even-$A$ polonium isotopes $^{192-210,216,218}$Po has been performed using the $6p^37s$ $^5S_2$ to $6p^37p$ $^5P_2$ ($\lambda=843.38$ nm) transition in the polonium atom (Po-I) at the CERN ISOLDE facility. The comparison of the measured isotope shifts in $^{200-210}$Po with a previous data set allows to test for the first time recent large-scale atomic calculations that are essential to extract the changes in the mean-square charge radius of the atomic nucleus. Read More

By studying the 109Xe-->105Te-->101Sn superallowed alpha-decay chain, we observe low-lying states in 101Sn, the one-neutron system outside doubly magic 100Sn. We find that the spins of the ground state (J = 7=2) and first excited state (J = 5=2) in 101Sn are reversed with respect to the traditional level ordering postulated for 103Sn and the heavier tin isotopes. Through simple arguments and state-of-the-art shell model calculations we explain this unexpected switch in terms of a transition from the single-particle regime to the collective mode in which orbital-dependent pairing correlations, dominate. Read More

The precision measurements envisaged at the International Linear Collider (ILC) depend on excellent instrumentation and reconstruction software. The correct identification of heavy flavour jets, placing unprecedented requirements on the quality of the vertex detector, will be central for the ILC programme. This paper describes the LCFIVertex software, which provides tools for vertex finding and for identification of the flavour and charge of the leading hadron in heavy flavour jets. Read More

2008Jul
Affiliations: 1the ALPHA Collaboration, 2the ALPHA Collaboration, 3the ALPHA Collaboration, 4the ALPHA Collaboration, 5the ALPHA Collaboration, 6the ALPHA Collaboration, 7the ALPHA Collaboration, 8the ALPHA Collaboration, 9the ALPHA Collaboration, 10the ALPHA Collaboration, 11the ALPHA Collaboration, 12the ALPHA Collaboration, 13the ALPHA Collaboration, 14the ALPHA Collaboration, 15the ALPHA Collaboration, 16the ALPHA Collaboration, 17the ALPHA Collaboration, 18the ALPHA Collaboration, 19the ALPHA Collaboration, 20the ALPHA Collaboration, 21the ALPHA Collaboration, 22the ALPHA Collaboration, 23the ALPHA Collaboration, 24the ALPHA Collaboration, 25the ALPHA Collaboration, 26the ALPHA Collaboration, 27the ALPHA Collaboration, 28the ALPHA Collaboration, 29the ALPHA Collaboration, 30the ALPHA Collaboration, 31the ALPHA Collaboration, 32the ALPHA Collaboration, 33the ALPHA Collaboration, 34the ALPHA Collaboration, 35the ALPHA Collaboration, 36the ALPHA Collaboration, 37the ALPHA Collaboration, 38the ALPHA Collaboration

We report results from a novel diagnostic that probes the outer radial profile of trapped antiproton clouds. The diagnostic allows us to determine the profile by monitoring the time-history of antiproton losses that occur as an octupole field in the antiproton confinement region is increased. We show several examples of how this diagnostic helps us to understand the radial dynamics of antiprotons in normal and nested Penning-Malmberg traps. Read More

2008Jul
Affiliations: 1the ALPHA collaboration, 2the ALPHA collaboration, 3the ALPHA collaboration, 4the ALPHA collaboration, 5the ALPHA collaboration, 6the ALPHA collaboration, 7the ALPHA collaboration, 8the ALPHA collaboration, 9the ALPHA collaboration, 10the ALPHA collaboration, 11the ALPHA collaboration, 12the ALPHA collaboration, 13the ALPHA collaboration, 14the ALPHA collaboration, 15the ALPHA collaboration, 16the ALPHA collaboration, 17the ALPHA collaboration, 18the ALPHA collaboration, 19the ALPHA collaboration, 20the ALPHA collaboration, 21the ALPHA collaboration, 22the ALPHA collaboration, 23the ALPHA collaboration, 24the ALPHA collaboration, 25the ALPHA collaboration, 26the ALPHA collaboration, 27the ALPHA collaboration, 28the ALPHA collaboration, 29the ALPHA collaboration, 30the ALPHA collaboration, 31the ALPHA collaboration, 32the ALPHA collaboration, 33the ALPHA collaboration, 34the ALPHA collaboration

We have demonstrated production of antihydrogen in a 1$,$T solenoidal magnetic field. This field strength is significantly smaller than that used in the first generation experiments ATHENA (3$,$T) and ATRAP (5$,$T). The motivation for using a smaller magnetic field is to facilitate trapping of antihydrogen atoms in a neutral atom trap surrounding the production region. Read More

ALPHA is an international project that has recently begun experimentation at CERN's Antiproton Decelerator (AD) facility. The primary goal of ALPHA is stable trapping of cold antihydrogen atoms with the ultimate goal of precise spectroscopic comparisons with hydrogen. We discuss the status of the ALPHA project and the prospects for antihydrogen trapping. Read More