2001
article
Identified particle elliptic flow in Au plus Au collisions at root s(NN)=130 GeV
Z. Ahammed, C. Allgower, B.D. Anderson, Michael G. Anderson, J. Balewski, L. S. Barnby, J. Baudot, R. Bellwied, J. Berger, V. Singh, R. V. Cadman, A. Cardenas, John L. Carroll, J. Castillo Castellanos, ML Chen, Y Chen, A. Chikanian, J.P. Coffin, L. Conin, T. M. Cormier, J.G. Cramer, H. J. Crawford, M. DeMello, Wanyu Deng, V.B. Dunin, Eckardt, Emelianov, B. Erazmus, E. Finch, Y. Fisyak, K. J. Foley, M. Germain, Ghazikhanian, Jakub Krzysztof Grabski, O. Grachov, D. Greiner, Mikhail S. Grigoriev, M. Guedon, E. Gushin, T. Hallman, D. Hardtke, M. Heffner, T. Herston, B. Hippolyte, E. Hjort, M. Horsley, H. Z. Huang, T. Humanic, Holm Gero Hümmler, G. Igo, A. Ishihara, YI Ivanshin, W. W. Jacobs, Ian Johnson, D. Keane, A. Kisiel, A. Konstantinov, A.D. Kovalenko, M. Krämer, P. Kravtsov, A. Kulikov, G. J. Kunde, R. Kh. Kutuev, А.А. Кузнецов, L. Lakéhal-Ayat, J. Lamas-Valverde, M.A.C. Lamont, J. M. Landgraf, J. S. Lange, C.P. Lansdell, B. Lasiuk, F. Laue, R. Lednický, V. M. Leontiev, P. Leszczyński, G. Lo Curto, H. Long, A. Maliszewski, L. Martin, H. S. Matis, YA Matulenko, Yu. Melnick, M.L. Miller, V. A. Moiseenko, D.M. Moltz, G. S. Mutchler, B. Norman, S. Nurushev, Akiko Ogawa, G. Paić, S.U. Pandey, S.Y. Panitkin, A.I. Pavlinov, Tomasz Pawlak, W. Pinganaud, E.D. Platner, N. T. Porile, Joshua Porter, C. A. Pruneau, G. Rai, С.В. Разин, D. Russ, AC Saulys, I. Savin, R. Scharenberg, K. Schweda, Norbert Schmitz, LS Schroeder, A. Schüttauf, Janet Elizabeth Seger, P. Seyboth, N. Shah, K. E. Shestermanov, S. S. Shimanskii, G. Škoro, R. J. M. Snellings, M. Strikhanov, A. A. P. Suaide, C. Suire, M. Šumbera, T. J. M. Symons, AS de Toledo, J. Takahashi, Anzheng Tang, J. H. Thomas, M. V. Tokarev, K. Turner, T. Ullrich, D. G. Underwood, A. Vanyashin, F Wang, C. Whitten, R. Willson, S. W. Wissink, Nan Xu, Z. Xu, V.I. Yurevich, I. Zborovský
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Le résumé fourni par la source
We report first results on elliptic flow of identified particles at midrapidity in Au + Au collisions at root (NN)-N-S = 130 GeV using the STAR TPC at RHIC. The elliptic flow as a function of transverse momentum and centrality differs significantly for particles of different masses. This dependence can be accounted for in hydrodynamic models, indicating that the system created shows a behavior consistent with collective hydrodynamical flow. The fit to the data with a simple model gives information on the temperature and flow velocities at freeze-out.
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Les sujets associés
High-Energy Particle Collisions ResearchDust and Plasma Wave PhenomenaMaterial Dynamics and Properties