Centrality and pseudorapidity dependence of elliptic flow for charged hadrons in Au+Au collisions at {radical}(s{sub NN})=200 GeV

Journal Article · Tue Nov 01 04:00:00 EST 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.051901· OSTI ID:20699099

Back, B B; Wuosmaa, A H ^[1]; Baker, M D; Barton, D S; Carroll, A; Gushue, S; Heintzelman, G A; Holzman, B; Nguyen, M; Pak, R; Remsberg, L P; Steinberg, P; Sukhanov, A ^[2]; Ballintijn, M; Busza, W; Decowski, M P; Gulbrandsen, K; Henderson, C; Kane, J L; Kulinich, P ^[3]

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1. Argonne National Laboratory, Argonne, Illinois 60439-4843 (United States)
2. Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
3. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307 (United States); and others

This Rapid Communication describes the measurement of elliptic flow for charged particles in Au+Au collisions at {radical}(s{sub NN})=200 GeV using the PHOBOS detector at the Relativistic Heavy Ion Collider. The measured azimuthal anisotropy is presented over a wide range of pseudorapidity for three broad collision centrality classes for the first time at this energy. Two distinct methods of extracting the flow signal were used to reduce systematic uncertainties. The elliptic flow falls sharply with increasing |{eta}| at 200 GeV for all the centralities studied, as observed for minimum-bias collisions at {radical}(s{sub NN})=130 GeV.

• OSTI ID: 20699099
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANISOTROPY
BROOKHAVEN RHIC
CHARGED PARTICLES
GEV RANGE
GOLD 197 REACTIONS
GOLD 197 TARGET
HYDRODYNAMIC MODEL
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PARTICLE RAPIDITY