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Wang, S. ; Jiang, Y. Z. ; Liu, Y. M. ; Keane, Declan ; Beavis, Dana Richard ; Chu, S. Y. ; Fung, Sun-Yiu ; Vient, M. ; Hartnack, Christoph ; Stöcker, Horst
We present a new type of flow analysis, based on a particle-pair correlation function, in which there is no need for an event-by-event determination of the reaction plane. Consequently, the need to correct for dispersion in an estimated reaction plane does not arise. Our method also offers the option to avoid any influence from particle misidentification. Using this method, streamer chamber data for collisions of Ar+KCl and Ar+BaI2 at 1.2 GeV/nucleon are compared with predictions of a nuclear transport model.
Magdy Abdelwahab Abdelrahman, Niseem ; Adamczyk, Leszek ; Adkins, J. Kevin ; Agakishiev, Geydar ; Aggarwal, Madan Mohan ; Ahammed, Zubayer ; Alekseev, Igor G. ; Alford, J. ; Anson, Christopher Daniel ; Aparin, Alexey ; Arkhipkin, Dmitry A. ; Aschenauer, Elke Caroline ; Averichev, Georgy S. ; Banerjee, A. ; Beavis, Dana Richard ; Bellwied, Rene ; Bhasin, Anju ; Bhati, Ashok Kumar ; Bhattarai, P. ; Bielčík, Jaroslav ; Bielčíková, Jana ; Bland, Leslie C. ; Bordyuzhin, Igor G. ; Borowski, W. ; Bouchet, Jonathan ; Brandin, Andrei V. ; Brovko, Samantha G. ; Bültmann, Stephen L. ; Bunzarov, Ivan ; Burton, T.P. ; Butterworth, Joseph ; Caines, Helen Louise ; Calderón de la Barca Sánchez, Manuel ; Campbell, J.M. ; Cebra, Daniel A. ; Cendejas, R. ; Cervantes, M.C. ; Chaloupka, Petr ; Chang, Z. ; Chattopadhyay, S. ; Chen, H.F. ; Chen, J.H. ; Chen, L. ; Cheng, J. ; Cherney, Michael Gerard ; Chikanian, Alexei ; Christie, William ; Codrington, M.J.M. ; Contin, Giacomo ; Cramer, John G. ; Crawford, Henry J. ; Cui, X. ; Das, Supriya ; Davila Leyva, A. ; De Silva, L.C. ; Debbe, R.R. ; Dedovič, Tatiana G. ; Deng, J. ; Derevschikov, Anatoly A. ; Souza, Rafael Derradi de ; di Ruzza, Benedetto ; Didenko, Lidia ; Dilks, Christopher ; Ding, F. ; Djawotho, P. ; Dong, X. ; Drachenberg, James Lucus ; Draper, James E. ; Du, C.M. ; Dunkelberger, Lloyd Edward ; Dunlop, James C. ; Efimov, Leonid G. ; Engelage, Jon M. ; Engle, K.S. ; Eppley, Geary Wareham ; Eun, L. ; Evdokimov, Olga Y. ; Eyser, Kjeld Oleg ; Fatemi, Renee H. ; Fazio, Salvatore ; Fedorišin, Jan ; Filip, Peter ; Fisyak, Yuri V. ; Flores, C.E. ; Gagliardi, Carl A. ; Gangadharan, Dhevan Raja ; Garand, David ; Geurts, Frank ; Gibson, Adam ; Girard, M. ; Gliske, S. ; Greiner, Leo Clifford ; Grosnick, David P. ; Gunarathne, D.S. ; Guo, Y. ; Gupta, Anik ; Gupta, S. ; Guryn, Włodzimierz ; Haag, B. ; Hamed, Ahmed M. ; Han, L-X. ; Haque, R. ; Harris, John W. ; Heppelmann, Steven Francis ; Hirsch, Andrew S. ; Hoffmann, Gerald W. ; Hofman, D.J. ; Horvat, S. ; Huang, B. ; Huang, H.Z. ; Huang, X. ; Huck, Patrick ; Humanic, Thomas J. ; Igo, George J. ; Jacobs, William W. ; Jang, H. ; Judd, Eleanor G. ; Kabana, Sonia ; Kalinkin, Dmitry ; Kang, K. ; Kauder, Kolja ; Ke, Hongwei ; Keane, Declan ; Kechechyan, Armen ; Kesich, A. ; Khan, Z.H. ; Kikola, D.P. ; Kisel, Ivan ; Kisiel, Adam Ryszard ; Koetke, Donald D. ; Kollegger, Thorsten ; Konzer, J. ; Koralt, I. ; Kosarzewski, Leszek Krzysztof ; Kotchenda, L. ; Kraishan, A.F. ; Kravtsov, Peter ; Krueger, Keith William ; Kulakov, Igor ; Kumar, Lokesh ; Kycia, R.A. ; Lamont, Matthew A. C. ; Landgraf, Jeffery M. ; Landry, K.D. ; Lauret, Jerome ; Lebedev, Alexei ; Lednicky, Richard ; Lee, J.H. ; Li, C. ; Li, W. ; Li, Xiaomei ; Li, Xiaomei ; Li, Y. ; Li, Z.M. ; Lisa, Michael A. ; Liu, F. ; Ljubicic, Tonko A. ; Llope, William Joseph ; Lomnitz, Michael ; Longacre, Ronald S. ; Luo, X. ; Ma, G.L. ; Ma, Yu-Gang ; Mahapatra, D.P. ; Majka, Richard Daniel ; Margetis, Spyridon ; Markert, Christina ; Masui, H. ; Matis, Howard S. ; McDonald, Daniel ; McShane, Tom S. ; Minaev, Nikolai G. ; Mioduszewski, Saskia ; Mohanty, Bedangadas ; Mondal, Mriganka Mouli ; Morozov, Dmitry A. ; Mustafa, M.K. ; Nandi, Basanta Kumar ; Nasim, Md. ; Nayak, Tapan Kumar ; Nelson, John M. ; Nigmatkulov, Grigory A. ; Nogach, Larisa V. ; Noh, S.Y. ; Novak, J. ; Nurušev, Sandibek B. ; Odyniec, Grazyna Janina ; Ogawa, Akio ; Oh, Kunsu ; Ohlson, Alice ; Okorokov, Vitaly A. ; Oldag, E.W. ; Olvitt, D.L. ; Page, Brian S. ; Pan, Y.X. ; Pandit, Y. ; Panebratsev, Yuri ; Pawlak, Tomasz Jan ; Pawlik, Bogdan ; Pei, Hua ; Perkins, Chris ; Pile, P. ; Planinic, Mirko ; Pluta, Jan Marian ; Poljak, Nikola ; Poniatowska, K. ; Porter, Jeffrey Brent ; Poskanzer, Arthur M. ; Pruthi, Navneet Kumar ; Przybycien, Mariusz ; Putschke, Jörn H. ; Qiu, H. ; Quintero, Amilkar ; Ramachandran, Suvarna ; Raniwala, Rashmi ; Raniwala, Sudhir ; Ray, Robert L. ; Riley, C.K. ; Ritter, Hans Georg ; Roberts, Jabus B. ; Rogačevskij, Oleg V. ; Romero, Juan L. ; Ross, J.F. ; Roy, Ankhi ; Ruan, Lijuan ; Rusnak, Jan ; Rusnakova, Olga ; Sahoo, Nihar Ranjan ; Sahu, Pradip Kumar ; Sakrejda, Iwona ; Salur, Sevil ; Sandacz, Andrzej ; Sandweiss, Jack H. ; Sangaline, Evan ; Sarkar, Amal ; Schambach, Joachim ; Scharenberg, Rolf Paul ; Schmah, Alexander ; Schmidke, William B. ; Schmitz, Norbert ; Seger, Janet Elizabeth ; Seyboth, Peter ; Shah, N. ; Shahaliev, Ehtiram ; Shanmuganathan, Prashanth V. ; Shao, M. ; Sharma, B. ; Shen, W.Q. ; Shi, S.S. ; Shou, Q.Y. ; Sichtermann, Ernst P. ; Šimko, Miroslav ; Skoby, M.J. ; Smirnov, Dmitri V. ; Smirnov, Nikolai ; Solanki, D. ; Sorensen, Paul Richard ; Spinka, Harold. M. ; Srivastava, Brijesh Kumar ; Stanislaus, T. D. Shirvel ; Stevens, J.R. ; Stock, Reinhard ; Strichanov, Michail Nikolaevič ; Stringfellow, Blair ; Šumbera, Michal ; Sun, X. ; Sun, X.M. ; Sun, Y. ; Sun, Z. ; Surrow, Bernd ; Svirida, Dmitry N. ; Symons, Timothy James MacNeil ; Szelezniak, M.A. ; Takahashi, Jun ; Tang, Aihong ; Tang, Zebo ; Tarnowsky, Terence J. ; Thomas, James H. ; Timmins, Anthony Robert ; Tlusty, David ; Tokarev, Mikhail V. ; Trentalange, Stephen ; Tribble, Robert E. ; Tribedy, Prithwish ; Trzeciak, Barbara Antonina ; Tsai, Oleg D. ; Turnau, J. ; Ullrich, Thomas ; Underwood, David G. ; Van Buren, Gene ; Nieuwenhuizen, Gerrit J. van ; Vandenbroucke, Maxence ; Vanfossen, Joseph A. ; Varma, Raghava ; Vasconcelos, Geraldo M. S. ; Vasiliev, Alexander Nikolaevich ; Vértesi, Róbert ; Videbæk, Flemming ; Viyogi, Yogendra P. ; Vokal, Stanislav ; Vossen, A. ; Wada, M. ; Wang, F. ; Wang, G. ; Wang, H. ; Wang, J.S. ; Wang, X.L. ; Wang, Y. ; Wang, Y. ; Webb, Grant ; Webb, Jason C. ; Westfall, Gary D. ; Wieman, Howard ; Wissink, Scott W. ; Wu, Y.F. ; Xiao, Z. ; Xie, W. ; Xin, K. ; Xu, H. ; Xu, J. ; Xu, N. ; Xu, Q.H. ; Xu, Y. ; Xu, Z. ; Yan, W. ; Yang, C. ; Yang, Y. ; Yang, Y. ; Ye, Z. ; Yepes, Pablo P. ; Yi, L. ; Yip, K. ; Yoo, In-Kwon ; Yu, N. ; Zbroszczyk, Hanna Paulina ; Zha, W. ; Zhang, J.B. ; Zhang, J.L. ; Zhang, S. ; Zhang, X.P. ; Zhang, Y. ; Zhang, Z.P. ; Zhao, F. ; Zhao, J. ; Zhong, C. ; Zhu, X. ; Zhu, Y.H. ; Zoulkarneeva, Youlia ; Zyzak, Maksym
A data-driven method was applied to Au+Au collisions at √sNN = 200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance η-dependent and η-independent correlations by using two- and four-particle azimuthal cumulant measurements. We identified a η-independent component of the correlation, which is dominated by anisotropic flow and flow fluctuations. It was also found to be independent of η within the measured range of pseudorapidity |η| < 1. In 20–30% central Au+Au collisions, the relative flow fluctuation was found to be 34%±2%(stat.)±3%(sys.) for particles with transverse momentum pT less than 2 GeV/c. The η-dependent part, attributed to nonflow correlations, is found to be 5% ± 2%(sys.) relative to the flow of the measured second harmonic cumulant at |η| > 0.7.
Madey, Richard ; Zhang, Wei-Ming ; Anderson, Bryon D. ; Baldwin, Alan Richard ; Elaasar, Mostafa ; Flanders, Bruce S. ; Keane, Declan ; Pairsuwan, Weerapong ; Varga, J. ; Watson, John W. ; Westfall, Gary D. ; Hartnack, Christoph ; Stöcker, Horst ; Frankel, Kenneth A.
Inclusive neutron spectra were measured at 0°, 4°, 8°, 15°, 30°, and 42° from Nb-Nb and Au-Au collisions at 800 MeV/nucleon. A peak that originates from neutron evaporation from the projectile appears in the spectra at angles out to 8°. The shapes and magnitudes of the spectra are compared with those calculated from models of nucleus-nucleus collisions. The differential cross sections for Au-Au collisions are about four times those for Nb-Nb collisions. The predictions of the Vlasov-Uehling-Uhlenbeck (VUU) and QMD theories agree with the angular distributions of the differential cross sections except at small angles; the VUU prediction overestimates the angular distributions from a few degrees to about 20°, whereas the QMD prediction underestimates the angular distributions below 8°. The Firestreak model overestimates the angular distribution for Nb-Nb collisions and underestimates it for Au-Au collisions. Also, the VUU and QMD models agree with the measured double-differential cross sections in more angular and energy regions than the Firestreak and intranuclear cascade models; however, none of the models can account for the peaks at small angles (θ≤15°).
Keane, Declan ; Chu, S.Y. ; Fung, Sun-Yiu ; Liu, Y.M. ; Qiao, L.J. ; Van Dalen, G. J. ; Vient, M. ; Wang, S. ; Molitoris, Joseph J. ; Stöcker, Horst
Streamer chamber data for collisions of Ar + KCl and Ar + BaI2 at 1.2 GeV/nucleon are compared with microscopic model predictions based on the Vlasov-Uehling-Uhlenbeck equation, for various density-dependent nuclear equations of state. Multiplicity distributions and inclusive rapidity and transverse momentum spectra are in good agreement. Rapidity spectra show evidence of being useful in determining whether the model uses the correct cross sections for binary collisions in the nuclear medium, and whether momentum-dependent interactions are correctly incorporated. Sideward flow results do not favor the same nuclear stiffness parameter at all multiplicities.
Jiang, Jinghua ; Keane, Declan ; Cogar, John ; Fai, George I. ; Hayashi, Shinichi ; Hartnack, Christoph ; Stöcker, Horst
Nuclear transport models are important tools for interpretation of many heavy-ion experiments and are essential in efforts to probe the nuclear equation of state. In order to fulfill these roles, the model predictions should at least agree with observed single-particle-inclusive momentum spectra; however, this agreement has recently been questioned. The present work compares the Vlasov-Uehling-Uhlenbeck model to data for mass-symmetric systems ranging from 12C+12C to 139La+139La, and we find good agreement within experimental uncertainties at 0.4A and 0.8A GeV. For currently available data, these uncertainties are too large to permit effective nucleon-nucleon scattering cross sections in the nuclear medium to be extracted at a useful level of precision.
Beavis, Dana Richard ; Bock, Rudolf ; Brockmann, Robert ; Danielewicz, Pawel ; Fung, Sun-Yiu ; Harris, John W. ; Keane, Declan ; Liu, Y. M. ; Odyniec, Grazyna Janina ; Pugh, Howel G. ; Renfordt, Rainer Arno Ernst ; Sandoval, Andres ; Schall, Dietmar ; Schroeder, Lee S. ; Stock, Reinhard ; Ströbele, Herbert ; Vient, M. A.
The energy dependence of rapidity distributions and flow effects was studied in central Ar+Pb collisions at 400, 800, and 1800 MeV/nucleon using a streamer chamber. Rapidity distributions for proton and pions are found to have a Gaussian shape whereas those for deuterons exhibit a two-peak structure at the two higher energies. The average in-plane transverse momentum per/nucleon and per/event shows saturation of flow around 800 MeV/nucleon for this asymmetric system. The aspect ratio of the sphericity tensor is closely correlated with the flow angle. This correlation appears to be independent of beam energy. The number of participating nucleons in central collisions varies from 213 at 400 to 135 at 1800 MeV/nucleon indicating that at the lowest energy almost the entire target nucleus participates in the collision.
Aichelin, Jörg ; Cugnon, Joseph ; Fraenkel, Zeev ; Frankel, Kenneth A. ; Gale, Charles ; Gyulassy, Miklos ; Keane, Declan ; Ko, Che Ming ; Randrup, Jørgen ; Rosenhauer, Albrecht ; Stöcker, Horst ; Welke, Gerd M. ; Wu, J. Q.
Nuclear transport models including density- and momentum-dependent mean-field effects are compared to intranuclear-cascade models and tested on recent data on inclusive p-like cross sections for 800A-MeV La+La. We find a remarkable agreement between most model calculations but a systematic disagreement with the measured yield at 20°, possibly indicating a need for modification of nuclear transport properties at high densities.
Adler, Clemens ; Ahammed, Zubayer ; Allgower, Chris ; Anderson, Mike ; Averichev, Georgy S. ; Balewski, Jan ; Barannikova, Olga ; Barnby, Lee Stuart ; Baudot, Jérome ; Bekele, Selemon ; Belaga, Victoria Vladimirovna ; Bellwied, Rene ; Berger, Jens ; Bichsel, Hans ; Bland, Leslie C. ; Blyth, Charles O. ; Bonner, Billy E. ; Bossingham, R. ; Boucham, Abdelkrim ; Brandin, Andrei V. ; Caines, Helen Louise ; Calderón de la Barca Sánchez, Manuel ; Cardenas, Andrés ; Carroll, J. ; Castillo Castellanos, Javier Ernesto ; Castro, M. ; Cebra, Daniel A. ; Chattopadhyay, S. ; Chen, M. L. ; Chen, Y. ; Chernenko, Sergey P. ; Cherney, Michael Gerard ; Chikanian, Alexei ; Choi, B. ; Christie, William ; Coffin, Jean Pierre ; Conin, Laurent ; Cormier, Thomas Michael ; Cramer, John G. ; Crawford, Henry J. ; DeMello, M. ; Deng, W. S. ; Derevschikov, Anatoly A. ; Didenko, Lidia ; Draper, James E. ; Dunin, V. B. ; Dunlop, James C. ; Eckardt, Volker ; Efimov, Leonid G. ; Emelianov, V. ; Engelage, Jon M. ; Eppley, Geary Wareham ; Erazmus, Barbara Ewa ; Fachini, Patricia ; Ferguson, M. I. ; Finch, Evan ; Fisyak, Yuri V. ; Flierl, Dominik Bernhard ; Foley, K. J. ; Gagunashvili, N. ; Gans, J. ; Germain, Marie ; Geurts, Frank ; Ghazikhanian, Vahe ; Grabski, J. ; Grachov, Oleg A. ; Greiner, D. ; Grigoriev, Vladislav A. ; Gushin, E. ; Hallman, Timothy J. ; Hardtke, David H. ; Harris, John W. ; Heffner, Michael D. ; Heppelmann, Steven Francis ; Herston, T. ; Hippolyte, Boris ; Hirsch, Andrew S. ; Hjort, Eric ; Hoffmann, Gerald W. ; Horsley, M. ; Huang, Huan Zhong ; Humanic, Thomas J. ; Hümmler, Holm Gero ; Igo, George J. ; Ishihara, A. ; Ivanshin, Yu. I. ; Jacobs, Peter Martin ; Jacobs, William W. ; Janik, Michał ; Johnson, I. ; Jones, Peter Graham ; Judd, Eleanor G. ; Kaneta, Kaneta ; Kaplan, Morton ; Keane, Declan ; Khodinov, A. ; Kisiel, Adam Ryszard ; Klay, Jennifer Lynn ; Klein, Spencer Robert ; Klyachko, A. ; Konstantinov, A. S. ; Kotchenda, L. ; Kovalenko, A. D. ; Kramer, M. ; Kravtsov, Peter ; Krueger, Keith William ; Kuhn, Christian Claude ; Kulikov, Anatoly I. ; Kunde, Gerd J. ; Kunz, Christopher Lee ; Kutuev, R. Kh. ; Kuznetsov, A. A. ; Lamas-Valverde, Jose ; Lamont, Matthew A. C. ; Landgraf, Jeffery M. ; Lange, S. ; Lansdell, Curtis Patrick Leon ; Lasiuk, Brian ; Laue, Frank ; Lebedev, Alexei ; LeCompte, T. ; Leontiev, V. M. ; Leszczynski, P. ; LeVine, Micheal J. ; Li, Q. ; Li, Q. ; Lindenbaum, Sam J. ; Lisa, Michael A. ; Ljubicic, Tonko A. ; Llope, William Joseph ; LoCurto, G. ; Long, H. ; Longacre, Ronald S. ; Lopez-Noriega, M. ; Love, William A. ; Lynn, David ; Madansky, L. ; Majka, Richard Daniel ; Maliszewski, A. ; Margetis, Spyridon ; Martin, L. ; Marx, Jay N. ; Matis, Howard S. ; Matulenko, Yuri A. ; McShane, Tom S. ; Melnick, Yu. ; Meščanin, Aleksei P. ; Milosevich, Z. ; Minaev, Nikolai G. ; Mitchell, J. ; Moiseenko, V. A. ; Moltz, D. ; Moore, C. F. ; Morozov, V. ; de Moura, M. M. ; Munhoz, Marcelo Gameiro ; Mutchler, G. S. ; Nelson, John M. ; Nevski, P. ; Nikitin, Vladimir A. ; Nogach, Larisa V. ; Norman, B. ; Nurušev, Sandibek B. ; Nystrand, Joakim Ingemar ; Odyniec, Grazyna Janina ; Ogawa, Akio ; Ogilvie, C. A. ; Oldenburg, Markus D. ; Olson, Douglas L. ; Paic, Guy ; Pandey, S. U. ; Panebratsev, Yuri ; Panitkin, Sergei Yurievich ; Pavlinov, A. I. ; Pawlak, Tomasz Jan ; Perevoztchikov, V. ; Peryt, Wiktor Stanislaw ; Petrov, V. A. ; Pinganaud, W. ; Platner, E. ; Pluta, Jan Marian ; Porile, Norbert T. ; Porter, Jeffrey Brent ; Poskanzer, Arthur M. ; Potrebenikova, E. ; Prindle, Duncan J. ; Pruneau, Claude A. ; Radomski, S. ; Rai, Gulshan ; Ravel, Olivier ; Ray, Robert L. ; Razin, Sergej V. ; Reichhold, Dennis Michael ; Reid, Jeffrey G. ; Retiere, Fabrice ; Ridiger, Alexey ; Ritter, Hans Georg ; Roberts, Jabus B. ; Rogachevski, O. V. ; Roy, Christelle Sophie ; Russ, D. ; Rykov, Vladimir L. ; Sakrejda, Iwona ; Sandweiss, Jack H. ; Saulys, A. C. ; Savin, Igor A. ; Schambach, Joachim ; Scharenberg, Rolf Paul ; Schmitz, Norbert ; Schroeder, Lee S. ; Schüttauf, Andreas ; Seger, Janet Elizabeth ; Seliverstov, D. ; Seyboth, Peter ; Shestermanov, Konstantin E. ; Shimanskii, S. S. ; Shvetcov, V. S. ; Skoro, Goran P. ; Smirnov, Nikolai ; Snellings, Raimond ; Sowinski, James ; Spinka, Harold. M. ; Srivastava, Brijesh Kumar ; Stephenson, Edward J. ; Stock, Reinhard ; Stolpovsky, Alexander ; Strichanov, Michail Nikolaevič ; Stringfellow, Blair ; Ströbele, Herbert ; Struck, Christof ; Suaide, Alexandre Alarcon do Passo ; Sugarbaker, Evan R. ; Suire, Christophe Pierre ; Symons, Timothy James MacNeil ; Toledo, Alejandro Szanto de ; Szarwas, Piotr ; Takahashi, Jun ; Tang, Aihong ; Thomas, James H. ; Tikhomirov, V. ; Trainor, Thomas A. ; Trentalange, Stephen ; Tokarev, Mikhail V. ; Tonjes, Marguerite Belt ; Trofimov, V. ; Tsai, Oleg D. ; Turner, K. ; Ullrich, Thomas ; Underwood, David G. ; Van Buren, Gene ; VanderMolen, A. M. ; Vanyashin, A. ; Vasilevski, I. M. ; Vasiliev, Alexander Nikolaevich ; Vigdor, Steven E. ; Voloshin, Sergei ; Wang, F. ; Ward, H. ; Wells, R. ; Wenaus, T. ; Westfall, Gary D. ; Whitten, Charles A. ; Wieman, Howard ; Willson, Robert ; Wissink, Scott W. ; Witt, Richard ; Xu, N. ; Xu, Z. ; Yakutin, A. E. ; Yamamoto, E. ; Yang, J. ; Yepes, Pablo P. ; Yokosawa, A. ; Yurevich, Vladimir Yurevich ; Zanevski, Y. V. ; Zhang, J. ; Zhang, W. M. ; Zoulkarneev, R. ; Zubarev, A. N.
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.
Adler, Clemens ; Ahammed, Zubayer ; Allgower, Chris ; Anderson, Mike ; Averichev, Georgy S. ; Balewski, Jan ; Barannikova, Olga ; Barnby, Lee Stuart ; Baudot, Jérome ; Bekele, Selemon ; Belaga, Victoria Vladimirovna ; Bellwied, Rene ; Berger, Jens ; Bichsel, Hans ; Bland, Leslie C. ; Blyth, Charles O. ; Bonner, Billy E. ; Bossingham, R. ; Boucham, Abdelkrim ; Brandin, Andrei V. ; Caines, Helen Louise ; Calderón de la Barca Sánchez, Manuel ; Cardenas, Andrés ; Carroll, J. ; Castillo Castellanos, Javier Ernesto ; Castro, M. ; Cebra, Daniel A. ; Chattopadhyay, S. ; Chen, M. L. ; Chen, Y. ; Chernenko, Sergey P. ; Cherney, Michael Gerard ; Chikanian, Alexei ; Choi, B. ; Christie, William ; Coffin, Jean Pierre ; Conin, Laurent ; Cormier, Thomas Michael ; Cramer, John G. ; Crawford, Henry J. ; DeMello, M. ; Deng, W. S. ; Derevschikov, Anatoly A. ; Didenko, Lidia ; Draper, James E. ; Dunin, V. B. ; Dunlop, James C. ; Eckardt, Volker ; Efimov, Leonid G. ; Emelianov, V. ; Engelage, Jon M. ; Eppley, Geary Wareham ; Erazmus, Barbara Ewa ; Fachini, Patricia ; Ferguson, M. I. ; Finch, Evan ; Fisyak, Yuri V. ; Flierl, Dominik Bernhard ; Foley, K. J. ; Gagunashvili, N. ; Gans, J. ; Germain, Marie ; Geurts, Frank ; Ghazikhanian, Vahe ; Grabski, J. ; Grachov, Oleg A. ; Greiner, D. ; Grigoriev, Vladislav A. ; Gushin, E. ; Hallman, Timothy J. ; Hardtke, David H. ; Harris, John W. ; Heffner, Michael D. ; Heppelmann, Steven Francis ; Herston, T. ; Hippolyte, Boris ; Hirsch, Andrew S. ; Hjort, Eric ; Hoffmann, Gerald W. ; Horsley, M. ; Huang, Huan Zhong ; Humanic, Thomas J. ; Hümmler, Holm Gero ; Igo, George J. ; Ishihara, A. ; Ivanshin, Yu. I. ; Jacobs, Peter Martin ; Jacobs, William W. ; Janik, Michał ; Johnson, I. ; Jones, Peter Graham ; Judd, Eleanor G. ; Kaneta, Kaneta ; Kaplan, Morton ; Keane, Declan ; Khodinov, A. ; Kisiel, Adam Ryszard ; Klay, Jennifer Lynn ; Klein, Spencer Robert ; Klyachko, A. ; Konstantinov, A. S. ; Kotchenda, L. ; Kovalenko, A. D. ; Kramer, M. ; Kravtsov, Peter ; Krueger, Keith William ; Kuhn, Christian Claude ; Kulikov, Anatoly I. ; Kunde, Gerd J. ; Kunz, Christopher Lee ; Kutuev, R. Kh. ; Kuznetsov, A. A. ; Lamas-Valverde, Jose ; Lamont, Matthew A. C. ; Landgraf, Jeffery M. ; Lange, S. ; Lansdell, Curtis Patrick Leon ; Lasiuk, Brian ; Laue, Frank ; Lebedev, Alexei ; LeCompte, T. ; Leontiev, V. M. ; Leszczynski, P. ; LeVine, Micheal J. ; Li, Q. ; Li, Q. ; Lindenbaum, Sam J. ; Lisa, Michael A. ; Ljubicic, Tonko A. ; Llope, William Joseph ; LoCurto, G. ; Long, H. ; Longacre, Ronald S. ; Lopez-Noriega, M. ; Love, William A. ; Lynn, David ; Madansky, L. ; Majka, Richard Daniel ; Maliszewski, A. ; Margetis, Spyridon ; Martin, L. ; Marx, Jay N. ; Matis, Howard S. ; Matulenko, Yuri A. ; McShane, Tom S. ; Melnick, Yu. ; Meščanin, Aleksei P. ; Milosevich, Z. ; Minaev, Nikolai G. ; Mitchell, J. ; Moiseenko, V. A. ; Moltz, D. ; Moore, C. F. ; Morozov, V. ; de Moura, M. M. ; Munhoz, Marcelo Gameiro ; Mutchler, G. S. ; Nelson, John M. ; Nevski, P. ; Nikitin, Vladimir A. ; Nogach, Larisa V. ; Norman, B. ; Nurušev, Sandibek B. ; Nystrand, Joakim Ingemar ; Odyniec, Grazyna Janina ; Ogawa, Akio ; Ogilvie, C. A. ; Oldenburg, Markus D. ; Olson, Douglas L. ; Paic, Guy ; Pandey, S. U. ; Panebratsev, Yuri ; Panitkin, Sergei Yurievich ; Pavlinov, A. I. ; Pawlak, Tomasz Jan ; Perevoztchikov, V. ; Peryt, Wiktor Stanislaw ; Petrov, V. A ; Pinganaud, W. ; Platner, E. ; Pluta, Jan Marian ; Porile, Norbert T. ; Porter, Jeffrey Brent ; Poskanzer, Arthur M. ; Potrebenikova, E. ; Prindle, Duncan J. ; Pruneau, Claude A. ; Radomski, S. ; Rai, Gulshan ; Ravel, Olivier ; Ray, Robert L. ; Razin, Sergej V. ; Reichhold, Dennis Michael ; Reid, Jeffrey G. ; Retiere, Fabrice ; Ridiger, Alexey ; Ritter, Hans Georg ; Roberts, Jabus B. ; Rogachevski, O. V. ; Roy, Christelle Sophie ; Russ, D. ; Rykov, Vladimir L. ; Sakrejda, Iwona ; Sandweiss, Jack H. ; Saulys, A. C. ; Savin, Igor A. ; Schambach, Joachim ; Scharenberg, Rolf Paul ; Schmitz, Norbert ; Schroeder, Lee S. ; Schüttauf, Andreas ; Schweda, Kai ; Seger, Janet Elizabeth ; Seliverstov, D. ; Seyboth, Peter ; Shestermanov, Konstantin E. ; Shimanskii, S. S. ; Shvetcov, V. S. ; Skoro, Goran P. ; Smirnov, Nikolai ; Snellings, Raimond ; Sowinski, James ; Spinka, Harold. M. ; Srivastava, Brijesh Kumar ; Stephenson, Edward J. ; Stock, Reinhard ; Stolpovsky, Alexander ; Strichanov, Michail Nikolaevič ; Stringfellow, Blair ; Ströbele, Herbert ; Struck, Christof ; Suaide, Alexandre Alarcon do Passo ; Sugarbaker, Evan R. ; Suire, Christophe Pierre ; Symons, Timothy James MacNeil ; de Toledo, A. Szanto ; Szarwas, Piotr ; Takahashi, Jun ; Tang, Aihong ; Thomas, James H. ; Tikhomirov, V. ; Trainor, Thomas A. ; Trentalange, Stephen ; Tokarev, Mikhail V. ; Tonjes, Marguerite Belt ; Trofimov, V. ; Tsai, Oleg D. ; Turner, K. ; Ullrich, Thomas ; Underwood, David G. ; Van Buren, Gene ; VanderMolen, A. M. ; Vanyashin, A. ; Vasilevski, I. M. ; Vasiliev, Alexander Nikolaevich ; Vigdor, Steven E. ; Voloshin, Sergei ; Wang, F. ; Ward, H. ; Wells, R. ; Wenaus, T. ; Westfall, Gary D. ; Whitten, Charles A. ; Wieman, Howard ; Willson, Robert ; Wissink, Scott W. ; Witt, Richard ; Xu, N. ; Xu, Z. ; Yakutin, A. E. ; Yamamoto, E. ; Yang, J. ; Yepes, Pablo P. ; Yokosawa, A. ; Yurevich, Vladimir Yurevich ; Zanevski, Y. V. ; Zhang, J. ; Zhang, W. M. ; Zoulkarneev, R. ; Zubarev, A. N.
Adler, Clemens ; Ahammed, Zubayer ; Allgower, Chris ; Amonett, John ; Anderson, Bryon D. ; Anderson, Mike ; Averichev, Georgy S. ; Balewski, Jan ; Barannikova, Olga ; Barnby, Lee Stuart ; Baudot, Jérome ; Bekele, Selemon ; Belaga, Victoria Vladimirovna ; Bellwied, Rene ; Berger, Jens ; Bichsel, Hans ; Bland, Leslie C. ; Blyth, Charles O. ; Bonner, Billy E. ; Boucham, Abdelkrim ; Brandin, Andrei V. ; Cadman, R. V. ; Caines, Helen Louise ; Calderón de la Barca Sánchez, Manuel ; Cardenas, Andrés ; Carroll, J. ; Castillo Castellanos, Javier Ernesto ; Castro, M. ; Cebra, Daniel A. ; Chattopadhyay, S. ; Chen, M. L. ; Chen, Y. ; Chernenko, Sergey P. ; Cherney, Michael Gerard ; Chikanian, Alexei ; Choi, B. ; Christie, William ; Coffin, Jean Pierre ; Cormier, Thomas Michael ; Cramer, John G. ; Crawford, Henry J. ; DeMello, M. ; Deng, W. S. ; Derevschikov, Anatoly A. ; Didenko, Lidia ; Draper, James E. ; Dunin, V. B. ; Dunlop, James C. ; Eckardt, Volker ; Efimov, Leonid G. ; Emelianov, V. ; Engelage, Jon M. ; Eppley, Geary Wareham ; Erazmus, Barbara Ewa ; Fachini, Patricia ; Faine, V. ; Finch, Evan ; Fisyak, Yuri V. ; Flierl, Dominik Bernhard ; Foley, K. J. ; Fu, J. ; Gagunashvili, N. ; Gans, J. ; Gaudichet, L. ; Germain, Marie ; Geurts, Frank ; Ghazikhanian, Vahe ; Grabski, J. ; Grachov, Oleg A. ; Greiner, D. ; Grigoriev, Vladislav A. ; Guedon, M. ; Gushin, E. ; Hallman, Timothy J. ; Hardtke, David H. ; Harris, John W. ; Heffner, Michael D. ; Heppelmann, Steven Francis ; Herston, T. ; Hippolyte, Boris ; Hirsch, Andrew S. ; Hjort, Eric ; Hoffmann, Gerald W. ; Horsley, M. ; Huang, Huan Zhong ; Humanic, Thomas J. ; Hümmler, Holm Gero ; Igo, George J. ; Ishihara, A. ; Ivanshin, Yu. I. ; Jacobs, Peter Martin ; Jacobs, William W. ; Janik, Michał ; Johnson, I. ; Jones, Peter Graham ; Judd, Eleanor G. ; Kaneta, Kaneta ; Kaplan, Morton ; Keane, Declan ; Kisiel, Adam Ryszard ; Klay, Jennifer Lynn ; Klein, Spencer Robert ; Klyachko, A. ; Konstantinov, A. S. ; Kotchenda, L. ; Kovalenko, A. D. ; Kramer, M. ; Kravtsov, Peter ; Krueger, Keith William ; Kuhn, Christian Claude ; Kulikov, Anatoly I. ; Kunde, Gerd J. ; Kunz, Christopher Lee ; Kutuev, R. Kh. ; Kuznetsov, A. A. ; Lakehal-Ayat, L. ; Lamas-Valverde, Jose ; Lamont, Matthew A. C. ; Landgraf, Jeffery M. ; Lange, S. ; Lansdell, Curtis Patrick Leon ; Lasiuk, Brian ; Laue, Frank ; Lebedev, Alexei ; LeCompte, T. ; Lednický, Richard ; Leontiev, V. M. ; LeVine, Micheal J. ; Li, Q. ; Li, Q. ; Lindenbaum, Sam J. ; Lisa, Michael A. ; Ljubicic, Tonko A. ; Llope, William Joseph ; LoCurto, G. ; Long, H. ; Longacre, Ronald S. ; Lopez-Noriega, M. ; Love, William A. ; Lynn, David ; Majka, Richard Daniel ; Margetis, Spyridon ; Martin, L. ; Marx, Jay N. ; Matis, Howard S. ; Matulenko, Yuri A. ; McShane, Tom S. ; Meissner, F. ; Melnick, Yu. ; Meščanin, Aleksei P. ; Messer, Matthias ; Miller, M. L. ; Milosevich, Z. ; Minaev, Nikolai G. ; Mitchell, J. ; Moiseenko, V. A. ; Moltz, D. ; Moore, C. F. ; Morozov, V. ; de Moura, M. M. ; Munhoz, Marcelo Gameiro ; Mutchler, G. S. ; Nelson, John M. ; Nevski, P. ; Nikitin, Vladimir A. ; Nogach, Larisa V. ; Norman, B. ; Nurušev, Sandibek B. ; Odyniec, Grazyna Janina ; Ogawa, Akio ; Okorokov, Vitaly A. ; Oldenburg, Markus D. ; Olson, Douglas L. ; Paic, Guy ; Pandey, S. U. ; Panebratsev, Yuri ; Panitkin, Sergei Yurievich ; Pavlinov, A. I. ; Pawlak, Tomasz Jan ; Perevoztchikov, V. ; Peryt, Wiktor Stanislaw ; Petrov, V. A. ; Platner, E. ; Pluta, Jan Marian ; Porile, Norbert T. ; Porter, Jeffrey Brent ; Poskanzer, Arthur M. ; Potrebenikova, E. ; Prindle, Duncan J. ; Pruneau, Claude A. ; Radomski, S. ; Rai, Gulshan ; Ravel, Olivier ; Ray, Robert L. ; Razin, Sergej V. ; Reichhold, Dennis Michael ; Reid, Jeffrey G. ; Retiere, Fabrice ; Ridiger, Alexey ; Ritter, Hans Georg ; Roberts, Jabus B. ; Rogachevski, O. V. ; Romero, Juan L. ; Roy, Christelle Sophie ; Russ, D. ; Rykov, Vladimir L. ; Sakrejda, Iwona ; Sandweiss, Jack H. ; Saulys, A. C. ; Savin, Igor A. ; Schambach, Joachim ; Scharenberg, Rolf Paul ; Schmitz, Norbert ; Schroeder, Lee S. ; Schüttauf, Andreas ; Schweda, Kai ; Seger, Janet Elizabeth ; Seliverstov, D. ; Seyboth, Peter ; Shahaliev, Ehtiram ; Shestermanov, Konstantin E. ; Shimanskii, S. S. ; Shvetcov, V. S. ; Skoro, Goran P. ; Smirnov, Nikolai ; Snellings, Raimond ; Sowinski, James ; Spinka, Harold. M. ; Srivastava, Brijesh Kumar ; Stephenson, Edward J. ; Stock, Reinhard ; Stolpovsky, Alexander ; Strichanov, Michail Nikolaevič ; Stringfellow, Blair ; Struck, Christof ; Suaide, Alexandre Alarcon do Passo ; Sugarbaker, Evan R. ; Suire, Christophe Pierre ; Šumbera, Michal ; Symons, Timothy James MacNeil ; Toledo, Alejandro Szanto de ; Szarwas, Piotr ; Takahashi, Jun ; Tang, Aihong ; Thomas, James H. ; Tikhomirov, V. ; Trainor, Thomas A. ; Trentalange, Stephen ; Tokarev, Mikhail V. ; Tonjes, Marguerite Belt ; Trofimov, V. ; Tsai, Oleg D. ; Turner, K. ; Ullrich, Thomas ; Underwood, David G. ; Van Buren, Gene ; VanderMolen, A. M. ; Vanyashin, A. ; Vasilevski, I. M. ; Vasiliev, Alexander Nikolaevich ; Vigdor, Steven E. ; Voloshin, Sergei ; Wang, F. ; Ward, H. ; Watson, J. W. ; Wells, R. ; Wenaus, T. ; Westfall, Gary D. ; Whitten, Charles A. ; Wieman, Howard ; Willson, Robert ; Wissink, Scott W. ; Witt, Richard ; Xu, N. ; Xu, Z. ; Yakutin, A. E. ; Yamamoto, E. ; Yang, J. ; Yepes, Pablo P. ; Yokosawa, A. ; Yurevich, Vladimir Yurevich ; Zanevski, Y. V. ; Zborovský, Imrich ; Zhang, Haitao ; Zhang, W. M. ; Zoulkarneev, R. ; Zubarev, A. N.
The first measurements of light antinucleus production in Au+Au collisions at the Relativistic Heavy-Ion Collider are reported. The observed production rates for d-bar and 3He-bar are much larger than in lower energy nucleus-nucleus collisions. A coalescence model analysis of the yields indicates that there is little or no increase in the antinucleon freeze-out volume compared to collisions at CERN SPS energy. These analyses also indicate that the 3He-bar freeze-out volume is smaller than the d-bar freeze-out volume.