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Phys Rev Lett. 2001 Jan 15;86(3):402-7. doi: 10.1103/PhysRevLett.86.402.

Elliptic flow in Au+Au collisions at square root(S)NN = 130 GeV.

Physical review letters

K H Ackermann, N Adams, C Adler, Z Ahammed, S Ahmad, C Allgower, J Amsbaugh, M Anderson, E Anderssen, H Arnesen, L Arnold, G S Averichev, A Baldwin, J Balewski, O Barannikova, L S Barnby, J Baudot, M Beddo, S Bekele, V V Belaga, R Bellwied, S Bennett, J Bercovitz, J Berger, W Betts, H Bichsel, F Bieser, L C Bland, M Bloomer, C O Blyth, J Boehm, B E Bonner, D Bonnet, R Bossingham, M Botlo, A Boucham, N Bouillo, S Bouvier, K Bradley, F P Brady, E S Braithwaite, W Braithwaite, A Brandin, R L Brown, G Brugalette, C Byrd, H Caines, M Calderón de la Barca Sánchez, A Cardenas, L Carr, J Carroll, J Castillo, B Caylor, D Cebra, S Chatopadhyay, M L Chen, W Chen, Y Chen, S P Chernenko, M Cherney, A Chikanian, B Choi, J Chrin, W Christie, J P Coffin, L Conin, C Consiglio, T M Cormier, J G Cramer, H J Crawford, V I Danilov, D Dayton, M DeMello, W S Deng, A A Derevschikov, M Dialinas, H Diaz, P A DeYoung, L Didenko, D Dimassimo, J Dioguardi, W Dominik, C Drancourt, J E Draper, V B Dunin, J C Dunlop, V Eckardt, W R Edwards, L G Efimov, T Eggert, V Emelianov, J Engelage, G Eppley, B Erazmus, A Etkin, P Fachini, C Feliciano, D Ferenc, M I Ferguson, H Fessler, E Finch, V Fine, Y Fisyak, D Flierl, I Flores, K J Foley, D Fritz, N Gagunashvili, J Gans, M Gazdzicki, M Germain, F Geurts, V Ghazikhanian, C Gojak, J Grabski, O Grachov, M Grau, D Greiner, L Greiner, V Grigoriev, D Grosnick, J Gross, G Guilloux, E Gushin, J Hall, T J Hallman, D Hardtke, G Harper, J W Harris, P He, M Heffner, S Heppelmann, T Herston, D Hill, B Hippolyte, A Hirsch, E Hjort, G W Hoffmann, M Horsley, M Howe, H Z Huang, T J Humanic, H Hümmler, W Hunt, J Hunter, G J Igo, A Ishihara, Y I Ivanshin, P Jacobs, W W Jacobs, S Jacobson, R Jared, P Jensen, I Johnson, P G Jones, E Judd, M Kaneta, M Kaplan, D Keane, V P Kenney, A Khodinov, J Klay, S R Klein, A Klyachko, G Koehler, A S Konstantinov, V Kormilitsyne, L Kotchenda, I Kotov, A D Kovalenko, M Kramer, P Kravtsov, K Krueger, T Krupien, P Kuczewski, C Kuhn, G J Kunde, C L Kunz, R K Kutuev, A A Kuznetsov, L Lakehal-Ayat, J Lamas-Valverde, M A Lamont, J M Landgraf, S Lange, C P Lansdell, B Lasiuk, F Laue, A Lebedev, T LeCompte, W J Leonhardt, V M Leontiev, P Leszczynski, M J LeVine, Q Li, Q Li, Z Li, C J Liaw, J Lin, S J Lindenbaum, V Lindenstruth, P J Lindstrom, M A Lisa, H Liu, T Ljubicic, W J Llope, G LoCurto, H Long, R S Longacre, M Lopez-Noriega, D Lopiano, W A Love, J R Lutz, D Lynn, L Madansky, R Maier, R Majka, A Maliszewski, S Margetis, K Marks, R Marstaller, L Martin, J Marx, H S Matis, Y A Matulenko, E A Matyushevski, C McParland, T S McShane, J Meier, Y Melnick, A Meschanin, P Middlekamp, N Mikhalin, B Miller, Z Milosevich, N G Minaev, B Minor, J Mitchell, E Mogavero, V A Moiseenko, D Moltz, C F Moore, V Morozov, R Morse, M M de Moura, M G Munhoz, G S Mutchler, J M Nelson, P Nevski, T Ngo, M Nguyen, T Nguyen, V A Nikitin, L V Nogach, T Noggle, B Norman, S B Nurushev, T Nussbaum, J Nystrand, G Odyniec, A Ogawa, C A Ogilvie, K Olchanski, M Oldenburg, D Olson, G A Ososkov, G Ott, D Padrazo, G Paic, S U Pandey, Y Panebratsev, S Y Panitkin, A I Pavlinov, T Pawlak, M Pentia, V Perevotchikov, W Peryt, V A Petrov, W Pinganaud, S Pirogov, E Platner, J Pluta, I Polk, N Porile, J Porter, A M Poskanzer, E Potrebenikova, D Prindle, C Pruneau, J Puskar-Pasewicz, G Rai, J Rasson, O Ravel, R L Ray, S V Razin, D Reichhold, J Reid, R E Renfordt, F Retiere, A Ridiger, J Riso, H G Ritter, J B Roberts, D Roehrich, O V Rogachevski, J L Romero, C Roy, D Russ, V Rykov, I Sakrejda, R Sanchez, Z Sandler, J Sandweiss, P Sappenfield, A C Saulys, I Savin, J Schambach, R P Scharenberg, J Scheblien, R Scheetz, R Schlueter, N Schmitz, L S Schroeder, M Schulz, A Schüttauf, J Sedlmeir, J Seger, D Seliverstov, J Seyboth, P Seyboth, R Seymour, E I Shakaliev, K E Shestermanov, Y Shi, S S Shimanskii, D Shuman, V S Shvetcov, G Skoro, N Smirnov, L P Smykov, R Snellings, K Solberg, J Sowinski, H M Spinka, B Srivastava, E J Stephenson, R Stock, A Stolpovsky, N Stone, R Stone, M Strikhanov, B Stringfellow, H Stroebele, C Struck, A A Suaide, E Sugarbaker, C Suire, T J Symons, J Takahashi, A H Tang, A Tarchini, J Tarzian, J H Thomas, V Tikhomirov, A Szanto De Toledo, S Tonse, T Trainor, S Trentalange, M Tokarev, M B Tonjes, V Trofimov, O Tsai, K Turner, T Ullrich, D G Underwood, I Vakula, G Van Buren, A M VanderMolen, A Vanyashin, I M Vasilevski, A N Vasiliev, S E Vigdor, G Visser, S A Voloshin, C Vu, F Wang, H Ward, D Weerasundara, R Weidenbach, R Wells, R Wells, T Wenaus, G D Westfall, J P Whitfield, C Whitten, H Wieman, R Willson, K Wilson, J Wirth, J Wisdom, S W Wissink, R Witt, J Wolf, L Wood, N Xu, Z Xu, A E Yakutin, E Yamamoto, J Yang, P Yepes, A Yokosawa, V I Yurevich, Y V Zanevski, J Zhang, W M Zhang, J Zhu, D Zimmerman, R Zoulkarneev, A N Zubarev

Affiliations

  1. Argone National Laboratory, Illinois 60439, USA.

PMID: 11177841 DOI: 10.1103/PhysRevLett.86.402

Abstract

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 square root(S)NN = 130 GeV using the STAR Time Projection Chamber at the Relativistic Heavy Ion Collider. The elliptic flow signal, v2, 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 flow are also presented.

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