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Adler, SS; Amirikas, R; Aphecetche, L; Aronson, SH; Averbeck, R; Awes, TC; Azmoun, R; Baldisseri, A; Bazilevsky, A; Boissevain, JG; Buesching, H; Bumazhnov, V; Burward-Hoy, JM; Camard, X; Chand, P; Chiba, J; Choi, J; Choudhury, RK; Cianciolo, V; Cobigo, Y; Constantin, P; Delagrange, H; Deshpande, A; Dietzsch, O; Drapier, O; Durum, A; Efremenko, YV; El Chenawi, K; En'yo, H; Fleuret, F; Fox, BD; Glenn, A; Goto, Y; de Cassagnac, RG; Grau, N; Guryn, W; Hamagaki, H; Harvey, M; Hayano, R; Hemmick, TK; Hill, JC; Hong, B; Ichihara, T; Ikonnikov, VV; Imai, K; Jacak, BV; Jia, J; Kamihara, N; Khachaturov, B; Khanzadeev, A; Kikuchi, J; Kim, DH; Kim, E; Kistenev, E; Kiyomichi, A; Kobayashi, H; Kopytine, M; Lacey, R; Ladygin, V; Lajoie, JG; Lee, S; Litvinenko, A; Liu, Y; Manko, VI; Matsumoto, T; Melnikov, E; Messer, F; Milov, A; Mitchell, JT; Morrison, DP; Muhlbacher, F; Mukhopadhyay, D; Muniruzzaman, M; Nagle, JL; Nakamura, T; Pantuev, VS; Parmar, A; Peitzmann, T; Ravinovich, I; Ryu, SS; Sadler, ME; Sawada, S; Shibata, TA; Shigaki, K; Sivertz, M; Stepanov, M; Stoll, SP; Takagui, EM; Tanaka, Y; Tanida, K; Tojo, J; Torii, H; Towell, RS; Tserruya, I; Vinogradov, AA; Wohn, FK; Xie, W; Yanovich, A; Young, GR; Zhang, C
Physical review letters, 10/2003, Volume: 91, Issue: 18: 182301Journal Article
The anisotropy parameter (v(2)), the second harmonic of the azimuthal particle distribution, has been measured with the PHENIX detector in Au+Au collisions at roots(NN)=200 GeV for identified and inclusive charged particle production at central rapidities (eta<0.35) with respect to the reaction plane defined at high rapidities (eta=3-4 ). We observe that the v(2) of mesons falls below that of (anti)baryons for p(T)>2 GeV/c, in marked contrast to the predictions of a hydrodynamical model. A quark-coalescence model is also investigated.
