Identified particle elliptic flow in Au+Au collisions at √(^sNN) = 130 GeV.

Journal Article · Mon Oct 01 04:00:00 EDT 2001 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.87.182301· OSTI ID:949330

Adler, C. ^[1]; Ahammed, Z. ^[2]; Allgower, C. ^[3]; Amonett, J. ^[4]; Anderson, B. D. ^[4]; Krueger, K.. ^[5]; Le Compte, T. ^[5]; Spinka, H. M. ^[5]; Underwood, D. G. ^[5]; Yokosawa, A. ^[5]

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1. Univ. of Frankfurt, Frankfurt (Germany)
2. Purdue Univ., West Lafayette, IN (United States)
3. Indiana Univ., Bloomington, IN (United States)
4. Kent State Univ., Kent, OH (United States)
5. Argonne National Lab. (ANL), Argonne, IL (United States)

We report first results on elliptic flow of identified particles at midrapidity in Au+Au collisions at √(^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.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: USDOE Office of Science (SC); FOR
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 949330
• Report Number(s): ANL-HEP-PR--01-71
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 ; Oct. 29, 2001 Vol. 87; ISSN 0031-9007; ISSN PRLTAO
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
GOLD
HYDRODYNAMIC MODEL
PARTICLE RAPIDITY
TRANSVERSE MOMENTUM