Identified particle elliptic flow in Au + Au collisions at s(NN)**(1/2) = 130-GeV - INSPIRE

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Identified particle elliptic flow in Au + Au collisions at s(NN)**(1/2) = 130-GeV

STAR

Collaboration

Jul, 2001

5 pages

Published in:

Phys.Rev.Lett. 87 (2001) 182301

e-Print:

nucl-ex/0107003 [nucl-ex]

DOI:

10.1103/PhysRevLett.87.182301

Experiments:

BNL-RHIC-STAR

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Abstract:

We report first results on elliptic flow of identified particles at mid-rapidity in Au+Au collisions at

\sqrt{s_{_{NN}}}=130

GeV using the STAR TPC at RHIC. The elliptic flow as a function of transverse momentum and centrality differs significantly for particles of different masses. This dependence can be accounted for in hydrodynamic models, indicating that the system created shows a behavior consistent with collective hydrodynamical flow. The fit to the data with a simple model gives information on the temperature and flow velocities at freeze-out.

Note:

REVTeX style included

scattering: heavy ion
gold
rapidity: central region
particle flow
transverse momentum dependence
impact parameter: dependence
mass dependence
hydrodynamics
collective phenomena
nuclear reaction: temperature

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