Rapidity and pt dependence of identified-particle elliptic flow at RHIC

Details Rapidity and pt dependence of identified-particle elliptic flow at RHIC Rapidity and pt dependence of identified-particle elliptic flow at RHIC

2007-01-31

arxiv.org/abs/nucl-ex/0701076v1

J.Phys.G34:S1083-1086,2007

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 2figure, Quark Matter 2006 parallel session contribution

Scientific paper

10.1088/0954-3899/34/8/S161

Elliptic flow has been measured by the BRAHMS experiment as a function of transverse momentum and pseudorapidity for the Au+Au reaction at sqrt[s_{NN}] = 200 GeV. Identified-particle v2 (eta, pt) values were obtained with the two BRAHMS spectrometers at pseudorapidities eta approximately equal to 0, 1, and 3.4. The results show that the differential v2(eta, pt) values for a given particle type are essentially constant over the covered pseudorapidity range. It is suggested that the dominant cause of the observed fall-off of the integral v2 values going away from mid-rapidity is a corresponding softening of the particle spectra .

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