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  • Azimuthal-Angle Dependence ...
    Azimuthal-Angle Dependence of Charged-Pion-Interferometry Measurements with Respect to Second- and Third-Order Event Planes in Au+Au Collisions at sqrt[s_{NN}]=200 GeV
    Aramaki, Y; Awes, T C; Baksay, G; Baublis, V; Bok, J S; Boyle, K; Brooks, M L; Chen, C-H; Choi, I J; Chujo, T; Chung, P; Cole, B A; Csanád, M; Dairaku, S; Danchev, I; Das, K; David, G; Deshpande, A; Dietzsch, O; Drees, A; Drees, K A; Efremenko, Y V; Engelmore, T; En'yo, H; Frantz, J E; Fukao, Y; Glenn, A; Gong, H; Grau, N; Hahn, K I; Hanks, J; Haslum, Eva; Heffner, M; Hong, B; Ide, J; Ikeda, Y; Johnson, B M; Kajihara, F; Kametani, S; Kang, J H; Kazantsev, A V; Kiriluk, K; Kiss, A; Komkov, B; Kozlov, A; Kravitz, A; Kunde, G J; Kurosawa, M; Kwon, Y; Lacey, R; Lee, K; Lee, K B; Leite, M A L; Leitner, E; Li, X; Liebing, P; Litvinenko, A; Makdisi, Y I; Malakhov, A; Mao, Y; McGaughey, P L; Means, N; Meredith, B; Miake, Y; Mikeš, P; Mitchell, J T; Murata, J; Nagle, J L; Nguyen, M; Oka, M; Ozawa, K; Proissl, M; Ravinovich, I; Rosati, M; Rukoyatkin, P; Sahlmueller, B; Sano, S; Sato, T; Sawada, S; Semenov, A Yu; Seto, R; Sharma, D; Shibata, T-A; Shimomura, M; Sparks, N A; Tanabe, R; Tannenbaum, M J; Tarafdar, S; Toia, A; Tserruya, I; Valle, H; van Hecke, H W; Vrba, V; Watanabe, D; Woody, C L; Yang, R; Yanovich, A; Younus, I; Zajc, W A; Zhou, S

    Physical review letters, 2014, Volume: 112, Issue: 22
    Journal Article

    Charged-pion-interferometry measurements were made with respect to the second- and third-order event plane for Au+Au collisions at sqrts_{NN}=200 GeV. A strong azimuthal-angle dependence of the extracted Gaussian-source radii was observed with respect to both the second- and third-order event planes. The results for the second-order dependence indicate that the initial eccentricity is reduced during the medium evolution, which is consistent with previous results. In contrast, the results for the third-order dependence indicate that the initial triangular shape is significantly reduced and potentially reversed by the end of the medium evolution, and that the third-order oscillations are largely dominated by the dynamical effects from triangular flow.

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