2001
article
Elliptic flow in Au plus Au collisions at root s(NN)=130 GeV
K.H. Ackermann, Z. Ahammed, Saeed Ahmad, C. Allgower, J. F. Amsbaugh, Michael G. Anderson, E. Anderssen, H. Arnesen, L. Arnold, A. R. Baldwin, J. Balewski, L. S. Barnby, J. Baudot, M. Beddo, R. Bellwied, J. Bercovitz, J. Berger, W. Betts, F. Bieser, M. A. Bloomer, J. Boehm, Dominique Bonnet, V. Singh, M. Botlo, N. Bouillo, S. Bouvier, Kevin M. Bradley, F. P. Brady, W. J. Braithwaite, A. V. Brandin, R.M. Brown, G. Brugalette, A. Cardenas, Lincoln D. Carr, John L. Carroll, J. Castillo Castellanos, B. Caylor, D. Cebra, S. Chatopadhyay, Mingli Chen, Y Chen, A. Chikanian, J. Chrin, J.P. Coffin, L. Conin, C. Consiglio, T. M. Cormier, J.G. Cramer, H. J. Crawford, David C. Dayton, M. DeMello, Wanyu Deng, M. Dialinas, H. Diaz, D. DiMassimo, J. Dioguardi, W. Dominik, C. Drancourt, V.B. Dunin, Eckardt, Tobias Eggert, Emelianov, B. Erazmus, A. Etkin, C. Feliciano, M.I. Ferguson, H. Fessler, E. Finch, David Fine, Y. Fisyak, I. Flores, K. J. Foley, M. Gaździcki, M. Germain, Ghazikhanian, C. Gojak, Jakub Krzysztof Grabski, O. Grachov, Matt Grau, D. Greiner, Mikhail S. Grigoriev, D. Grosnick, John Gross, G. Guilloux, E. Gushin, T. Hallman, D. Hardtke, G. Harper, M. Heffner, T. Herston, B. Hippolyte, E. Hjort, M. Horsley, M. Howe, H. Z. Huang, T. Humanic, Holm Gero Hümmler, William H. Hunt, J. Hunter, G. Igo, A. Ishihara, YI Ivanshin, W. W. Jacobs, S. Jacobson, Paul A. Jensen, Ian Johnson, D. Keane, V. P. Kenney, A. Khodinov, G. Koehler, A. Konstantinov, I. Kotov, A.D. Kovalenko, P. Kravtsov, T. Krupien, P. Kuczewski, G. J. Kunde, C.L. Kunz, 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, V. M. Leontiev, P. Leszczyński, Q Li, Z. Li, C.J. Liaw, P. J. Lindstrom, Hengjiang Liu, G. Lo Curto, H. Long, D. Lopiano, L Madansky, Ronald Maier, A. Maliszewski, S. Margetis, K. Marks, R. Marstaller, L. Martin, H. S. Matis, YA Matulenko, E. A. Matyushevski, C. McParland, P. Middlekamp, N.E. Mikhalin, B. Minor, E. Mogavero, V. A. Moiseenko, D. M. Moltz, R. J. Morse, G. S. Mutchler, Tue Ngo, T. Q. Nguyen, T. Noggle, B. Norman, S. Nurushev, J. Nystrand, Akiya Ogawa, C. A. Ogilvie, K. Olchanski, D. Padrazo, G. Paić, S.U. Pandey, S.Y. Panitkin, A.I. Pavlinov, Tomasz Pawlak, M. Pentia, W. Pinganaud, С. А. Пирогов, E.D. Platner, I. Polk, Joshua Porter, C. A. Pruneau, J. Puskar-Pasewicz, G. Rai, J. Rasson, С.В. Разин, J. Riso, O.V. Rogachevski, D. Russ, Renato Sánchez, Z. Sandler, P. Sappenfield, AC Saulys, I. Savin, J. Scheblien, R.A. Scheetz, R. Schlueter, Norbert Schmitz, LS Schroeder, Michael Schulz, A. Schüttauf, J. Sedlmeir, J. Seyboth, P. Seyboth, Rowan Seymour, E. I. Shakaliev, K. E. Shestermanov, S. S. Shimanskii, G. Škoro, L. Smykov, R. J. M. Snellings, K. Solberg, M. Strikhanov, A. A. P. Suaide, C. Suire, T. J. M. Symons, Anzheng Tang, A. Tarchini, J. Tarzian, JH Thomas, AS de Toledo, S. Tonse, K. Turner, T. Ullrich, Y. G., I. Vakula, A. Vanyashin, F Wang, D. Weerasundara, R. Weidenbach, R. Wells, J. P. Whitfield, C. Whitten, R. Willson, Kenneth E. Wilson, J. Wirth, Jack Wisdom, S. W. Wissink, J. Wolf, Nan Xu, Jie Yang, V.I. Yurevich, J. Zhu, D. Zimmerman
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Le résumé fourni par la source
Elliptic flow from nuclear collisions is a hadronic observable sensitive to the early stages of system evolution. We report first results on elliptic flow of charged particles at midrapidity in Au + Au collisions at rootS(NN) = 130 GeV using the STAR Time Projection Chamber at the Relativistic Heavy Ion Collider. The elliptic flow signal, v(2), averaged over transverse momentum, reaches values of about 6% for relatively peripheral collisions and decreases for the more central collisions. This can be interpreted as the observation of a higher degree of thermalization than at lower collision energies. Pseudorapidity and transverse momentum dependence of elliptic how are also presented.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
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Les sujets associés
High-Energy Particle Collisions ResearchParticle physics theoretical and experimental studiesDust and Plasma Wave Phenomena