Phys. Rev. Lett. 87, 182301 (2001) [6 pages]

Identified Particle Elliptic Flow in Au+Au Collisions at sqrt[sNN]  =  130 GeV

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C. Adler et al. (STAR Collaboration)
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Received 5 July 2001; published 10 October 2001

We report first results on elliptic flow of identified particles at midrapidity in Au+Au collisions at sqrt[sNN]  =  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.


©2001 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v87/e182301
DOI: 10.1103/PhysRevLett.87.182301
PACS: 25.75.Ld

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