Observation of anisotropic event shapes and transverse flow in ultrarelativistic Au+Au collisions

Journal Article · Mon Nov 07 04:00:00 EST 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.73.2532· OSTI ID:6939932

Barrette, J; Bellwied, R; Bennett, S; Braun-Munzinger, P; Cleland, W E; Clemen, M; Cole, J; Cormier, T M; David, G; Dee, J; Dietzsch, O; Drigert, M; Gilbert, S; Hall, J R; Hemmick, T K; Herrmann, N; Hong, B; Jiang, C L; Kwon, Y; Lacasse, R ; Lukaszew, A; Li, Q; Ludlam, T W; McCorkle, S; Mark, S K; Matheus, R; O'Brien, E; Panitkin, S; Piazza, T; Pruneau, C; Rao, M N; Rosati, M; daSilva, N C; Sedykh, S; Sonnadara, U; Stachel, J; Takai, H; Takagui, E M; Voloshin, S; Wang, G; Wessels, J P; Woody, C L; Xu, N; Zhang, Y; Zhang, Z; Zou, C ^[1]

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1. Brookhaven National Laboratory, Upton, New York 11973 (United States) Gesellschaft fuer Schwerionenforschung, Darmstadt (Germany) Idaho National Engineering Laboratory, Idaho Falls, Idaho 83402 (United States) McGill Univesity, Montreal, H3A 2T8 (Canada) University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States) SUNY, Stony Brook, New York, 11794 (United States) University of Sao Paulo, Sao Paulo (B

Event shapes for Au + Au collisions at 11.4 GeV/[ital c] per nucleon were studied over nearly the full solid angle with the E877 apparatus. The analysis was performed by Fourier expansion of azimuthal distributions of the transverse energy ([ital E][sub [ital T]]) measured in different pseudorapidity intervals. For semicentral collisions a pronounced event anisotropy is identified with a clear forward-backward anticorrelation. In the forward pseudorapidity interval up to 9% of the [ital E][sub [ital T]] is in a directed component. The signal decreases for peripheral and very central collisions.

• OSTI ID: 6939932
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 73:19; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANISOTROPY
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ENERGY RANGE
FOURIER ANALYSIS
GOLD 197 REACTIONS
GOLD 197 TARGET
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KINETIC ENERGY
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