Midrapidity antiproton-to-proton ratio from Au+Au collisions at √sNN = 130 GeV

Clemens Adler, Zubayer Ahammed, Chris Allgower, Mike Anderson, Georgy S. Averichev, Jan Balewski, Olga Barannikova, Lee Stuart Barnby, Jérome Baudot, Selemon Bekele, Victoria Vladimirovna Belaga, Rene Bellwied, Jens Berger, Hans Bichsel, Leslie C. Bland, Charles O. Blyth, Billy E. Bonner, R. Bossingham, Abdelkrim Boucham, Andrei V. Brandin, Helen Louise Caines, Manuel Calderón de la Barca Sánchez, Andrés Cardenas, J. Carroll, Javier Ernesto Castillo Castellanos, M. Castro, Daniel A. Cebra, S. Chattopadhyay, M. L. Chen, Y. Chen, S. P. Chernenko, Michael Gerard Cherney, Alexei Chikanian, B. Choi, William Christie, Jean Pierre Coffin, Laurent Conin, Thomas Michael Cormier, John G. Cramer, Henry J. Crawford, M. DeMello, W. S. Deng, Anatoly A. Derevschikov, Lidia Didenko, James E. Draper, V. B. Dunin, James C. Dunlop, Volker Eckardt, Leonid G. Efimov, V. Emelianov, Jon M. Engelage, Geary Wareham Eppley, Barbara Ewa Erazmus, Patricia Fachini, M. I. Ferguson, Evan Finch, Yuri V. Fisyak, Dominik Bernhard Flierl, K. J. Foley, N. Gagunashvili, J. Gans, Marie Germain, Frank Geurts, Vahe Ghazikhanian, J. Grabski, Oleg A. Grachov, D. Greiner, Vladislav A. Grigoriev, E. Gushin, Timothy J. Hallman, David H. Hardtke, John W. Harris, Michael D. Heffner, Steven Francis Heppelmann, T. Herston, Boris Hippolyte, Andrew S. Hirsch, Eric Hjort, Gerald W. Hoffmann, M. Horsley, Huan Zhong Huang, Thomas J. Humanic, Holm Gero Hümmler, George J. Igo, A. Ishihara, Yu. I. Ivanshin, Peter Martin Jacobs, William W. Jacobs, Michał Janik, I. Johnson, Peter Graham Jones, Eleanor G. Judd, Kaneta Kaneta, Morton Kaplan, Declan Keane, A. Khodinov, Adam Ryszard Kisiel, Jennifer Lynn Klay, Spencer Robert Klein, A. Klyachko, A. S. Konstantinov, L. Kotchenda, A. D. Kovalenko, M. Kramer, Peter Kravtsov, Keith William Krueger, Christian Claude Kuhn, Anatoly I. Kulikov, Gerd J. Kunde, Christopher Lee Kunz, R. Kh. Kutuev, A. A. Kuznetsov, J. Lamas-Valverde, Matthew A. C. Lamont, Jeffery M. Landgraf, S. Lange, Curtis Patrick Leon Lansdell, Brian Lasiuk, Frank Laue, Alexei Lebedev, T. LeCompte, V. M. Leontiev, P. Leszczynski, Micheal J. LeVine, Q. Li, Q. Li, Sam J. Lindenbaum, Michael A. Lisa, Tonko A. Ljubicic, William Joseph Llope, G. LoCurto, H. Long, Ronald S. Longacre, M. Lopez-Noriega, William A. Love, David Lynn, L. Madansky, Richard Daniel Majka, A. Maliszewski, Spyridon Margetis, L. Martin, Jay N. Marx, Howard S. Matis, Yuri A. Matulenko, Tom S. McShane, Yu. Melnick, Aleksei P. Meščanin, Z. Milosevich, Nikolai G. Minaev, J. Mitchell, V. A. Moiseenko, D. Moltz, C. F. Moore, V. Morozov, M. M. de Moura, Marcelo Gameiro Munhoz, G. S. Mutchler, John M. Nelson, P. Nevski, Vladimir A. Nikitin, Larisa V. Nogach, B. Norman, Sandibek B. Nurušev, Joakim Ingemar Nystrand, Grazyna Janina Odyniec, Akio Ogawa, C. A. Ogilvie, Markus D. Oldenburg, Douglas L. Olson, Guy Paic, S. U. Pandey, Yuri Panebratsev, Sergei Yurievich Panitkin, A. I. Pavlinov, Tomasz Jan Pawlak, V. Perevoztchikov, Wiktor Stanislaw Peryt, V. A. Petrov, W. Pinganaud, E. Platner, Jan Marian Pluta, Norbert T. Porile, Jeffrey Brent Porter, Arthur M. Poskanzer, E. Potrebenikova, Duncan J. Prindle, Claude A. Pruneau, S. Radomski, Gulshan Rai, Olivier Ravel, Robert L. Ray, Sergej V. Razin, Dennis Michael Reichhold, Jeffrey G. Reid, Fabrice Retiere, Alexey Ridiger, Hans Georg Ritter, Jabus B. Roberts, O. V. Rogachevski, Christelle Sophie Roy, D. Russ, Vladimir L. Rykov, Iwona Sakrejda, Jack H. Sandweiss, A. C. Saulys, Igor A. Savin, Joachim Schambach, Rolf Paul Scharenberg, Norbert Schmitz, Lee S. Schroeder, Andreas Schüttauf, Janet Elizabeth Seger, D. Seliverstov, Peter Seyboth, Konstantin E. Shestermanov, S. S. Shimanskii, V. S. Shvetcov, Goran P. Skoro, Nikolai Smirnov, Raimond Snellings, James Sowinski, Harold. M. Spinka, Brijesh Kumar Srivastava, Edward J. Stephenson, Reinhard Stock, Alexander Stolpovsky, Michail Nikolaevič Strichanov, Blair Stringfellow, Herbert Ströbele, Christof Struck, Alexandre Alarcon do Passo Suaide, Evan R. Sugarbaker, Christophe Pierre Suire, Timothy James MacNeil Symons, Alejandro Szanto de Toledo, Piotr Szarwas, Jun Takahashi, Aihong Tang, James H. Thomas, V. Tikhomirov, Thomas A. Trainor, Stephen Trentalange, Mikhail V. Tokarev, Marguerite Belt Tonjes, V. Trofimov, Oleg D. Tsai, K. Turner, Thomas Ullrich, David G. Underwood, Gene Van Buren, A. M. VanderMolen, A. Vanyashin, I. M. Vasilevski, Alexander Nikolaevich Vasiliev, Steven E. Vigdor, Sergei Voloshin, F. Wang, H. Ward, R. Wells, T. Wenaus, Gary D. Westfall, Charles A. Whitten, Howard Wieman, Robert Willson, Scott W. Wissink, Richard Witt, N. Xu, Z. Xu, A. E. Yakutin, E. Yamamoto, J. Yang, Pablo P. Yepes, A. Yokosawa, Vladimir Yurevich Yurevich, Y. V. Zanevski, J. Zhang, W. M. Zhang, R. Zoulkarneev, A. N. Zubarev

  • We report results on the ratio of midrapidity antiproton-to-proton yields in Au+Au collisions at sqrt[sNN] = 130 GeV per nucleon pair as measured by the STAR experiment at RHIC. Within the rapidity and transverse momentum range of | y|<0.5 and 0.4<pt<1.0 GeV/c, the ratio is essentially independent of either transverse momentum or rapidity, with an average of 0.65±0.01(stat)±0.07(syst) for minimum bias collisions. Within errors, no strong centrality dependence is observed. The results indicate that at this RHIC energy, although the p-p-bar pair production becomes important at midrapidity, a significant excess of baryons over antibaryons is still present.

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Author:Clemens AdlerGND, Zubayer AhammedORCiD, Chris Allgower, Mike Anderson, Georgy S. AverichevGND, Jan Balewski, Olga Barannikova, Lee Stuart BarnbyORCiD, Jérome BaudotORCiD, Selemon BekeleORCiD, Victoria Vladimirovna Belaga, Rene BellwiedGND, Jens BergerGND, Hans Bichsel, Leslie C. BlandORCiD, Charles O. Blyth, Billy E. Bonner, R. Bossingham, Abdelkrim Boucham, Andrei V. Brandin, Helen Louise CainesORCiD, Manuel Calderón de la Barca SánchezORCiD, Andrés Cardenas, J. Carroll, Javier Ernesto Castillo CastellanosORCiD, M. Castro, Daniel A. CebraORCiD, S. Chattopadhyay, M. L. Chen, Y. Chen, S. P. Chernenko, Michael Gerard Cherney, Alexei Chikanian, B. Choi, William ChristieORCiD, Jean Pierre Coffin, Laurent Conin, Thomas Michael Cormier, John G. CramerGND, Henry J. CrawfordORCiD, M. DeMello, W. S. Deng, Anatoly A. Derevschikov, Lidia Didenko, James E. Draper, V. B. Dunin, James C. DunlopORCiD, Volker Eckardt, Leonid G. Efimov, V. Emelianov, Jon M. Engelage, Geary Wareham Eppley, Barbara Ewa Erazmus, Patricia Fachini, M. I. Ferguson, Evan FinchORCiD, Yuri V. FisyakORCiD, Dominik Bernhard FlierlGND, K. J. Foley, N. Gagunashvili, J. Gans, Marie GermainORCiD, Frank GeurtsORCiD, Vahe Ghazikhanian, J. Grabski, Oleg A. GrachovORCiD, D. Greiner, Vladislav A. Grigoriev, E. Gushin, Timothy J. Hallman, David H. Hardtke, John W. HarrisORCiDGND, Michael D. HeffnerORCiD, Steven Francis Heppelmann, T. Herston, Boris Hippolyte, Andrew S. HirschORCiDGND, Eric Hjort, Gerald W. Hoffmann, M. Horsley, Huan Zhong HuangORCiD, Thomas J. HumanicORCiD, Holm Gero HümmlerGND, George J. Igo, A. Ishihara, Yu. I. Ivanshin, Peter Martin JacobsORCiD, William W. JacobsORCiD, Michał Janik, I. Johnson, Peter Graham Jones, Eleanor G. JuddORCiD, Kaneta KanetaORCiD, Morton Kaplan, Declan KeaneORCiD, A. Khodinov, Adam Ryszard KisielORCiD, Jennifer Lynn KlayORCiD, Spencer Robert KleinORCiD, A. Klyachko, A. S. Konstantinov, L. Kotchenda, A. D. Kovalenko, M. Kramer, Peter KravtsovORCiD, Keith William Krueger, Christian Claude Kuhn, Anatoly I. KulikovORCiD, Gerd J. KundeORCiD, Christopher Lee Kunz, R. Kh. Kutuev, A. A. Kuznetsov, J. Lamas-Valverde, Matthew A. C. Lamont, Jeffery M. Landgraf, S. Lange, Curtis Patrick Leon Lansdell, Brian Lasiuk, Frank LaueGND, Alexei Lebedev, T. LeCompte, V. M. Leontiev, P. Leszczynski, Micheal J. LeVine, Q. Li, Q. Li, Sam J. Lindenbaum, Michael A. LisaORCiDGND, Tonko A. Ljubicic, William Joseph LlopeORCiD, G. LoCurto, H. Long, Ronald S. Longacre, M. Lopez-Noriega, William A. Love, David LynnORCiD, L. Madansky, Richard Daniel MajkaORCiD, A. Maliszewski, Spyridon Margetis, L. Martin, Jay N. Marx, Howard S. MatisORCiD, Yuri A. Matulenko, Tom S. McShane, Yu. Melnick, Aleksei P. MeščaninGND, Z. Milosevich, Nikolai G. Minaev, J. Mitchell, V. A. Moiseenko, D. Moltz, C. F. Moore, V. Morozov, M. M. de Moura, Marcelo Gameiro MunhozORCiD, G. S. Mutchler, John M. Nelson, P. Nevski, Vladimir A. Nikitin, Larisa V. Nogach, B. Norman, Sandibek B. NuruševGND, Joakim Ingemar Nystrand, Grazyna Janina Odyniec, Akio Ogawa, C. A. Ogilvie, Markus D. OldenburgGND, Douglas L. Olson, Guy Paic, S. U. Pandey, Yuri Panebratsev, Sergei Yurievich PanitkinORCiD, A. I. Pavlinov, Tomasz Jan Pawlak, V. Perevoztchikov, Wiktor Stanislaw Peryt, V. A. Petrov, W. Pinganaud, E. Platner, Jan Marian Pluta, Norbert T. Porile, Jeffrey Brent Porter, Arthur M. PoskanzerORCiDGND, E. Potrebenikova, Duncan J. Prindle, Claude A. PruneauORCiDGND, S. Radomski, Gulshan Rai, Olivier Ravel, Robert L. RayORCiD, Sergej V. RazinGND, Dennis Michael Reichhold, Jeffrey G. Reid, Fabrice Retiere, Alexey Ridiger, Hans Georg Ritter, Jabus B. Roberts, O. V. Rogachevski, Christelle Sophie Roy, D. Russ, Vladimir L. Rykov, Iwona Sakrejda, Jack H. Sandweiss, A. C. Saulys, Igor A. Savin, Joachim SchambachORCiD, Rolf Paul Scharenberg, Norbert SchmitzGND, Lee S. Schroeder, Andreas SchüttaufGND, Janet Elizabeth SegerORCiD, D. Seliverstov, Peter SeybothORCiDGND, Konstantin E. Shestermanov, S. S. ShimanskiiGND, V. S. Shvetcov, Goran P. SkoroORCiD, Nikolai Smirnov, Raimond SnellingsORCiD, James Sowinski, Harold. M. SpinkaORCiD, Brijesh Kumar Srivastava, Edward J. StephensonORCiD, Reinhard StockGND, Alexander Stolpovsky, Michail Nikolaevič StrichanovORCiDGND, Blair Stringfellow, Herbert Ströbele, Christof StruckGND, Alexandre Alarcon do Passo SuaideORCiD, Evan R. Sugarbaker, Christophe Pierre SuireORCiD, Timothy James MacNeil Symons, Alejandro Szanto de Toledo, Piotr Szarwas, Jun TakahashiORCiD, Aihong TangORCiD, James H. ThomasORCiD, V. Tikhomirov, Thomas A. TrainorORCiD, Stephen TrentalangeORCiD, Mikhail V. Tokarev, Marguerite Belt TonjesORCiD, V. Trofimov, Oleg D. Tsai, K. Turner, Thomas UllrichORCiDGND, David G. UnderwoodORCiD, Gene Van BurenORCiD, A. M. VanderMolen, A. Vanyashin, I. M. Vasilevski, Alexander Nikolaevich Vasiliev, Steven E. VigdorGND, Sergei VoloshinORCiDGND, F. Wang, H. Ward, R. Wells, T. Wenaus, Gary D. WestfallGND, Charles A. Whitten, Howard Wieman, Robert Willson, Scott W. WissinkORCiD, Richard WittORCiD, N. Xu, Z. Xu, A. E. Yakutin, E. Yamamoto, J. Yang, Pablo P. Yepes, A. Yokosawa, Vladimir Yurevich Yurevich, Y. V. Zanevski, J. Zhang, W. M. Zhang, R. Zoulkarneev, A. N. Zubarev
URN:urn:nbn:de:hebis:30-18764
DOI:https://doi.org/10.1103/PhysRevLett.86.4778
Parent Title (German):Physical Review Letters
Publisher:American Physical Society
Document Type:Article
Language:English
Date of Publication (online):2005/10/14
Year of first Publication:2001
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/10/14
Volume:86
Issue:21
Page Number:5
First Page:4778
Last Page:4782
Source:Phys. Rev. Lett. 86, 4778-4782 (2001), ©2001 The American Physical Society, http://link.aps.org/abstract/PRL/v86/p4778
HeBIS-PPN:358580196
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht