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Article
Elliptic Flow in Au + Au Collisions at √sNN=130 GeV
Physical Review Letters
(2001)
Abstract
Elliptic flow from nuclear collisions is a hadronic observable sensitive to the early stages of system evolution. We report first results on elliptic flow of charged particles at midrapidity in Au+Au collisions at √sNN=130GeV using the STAR Time Projection Chamber at the Relativistic Heavy Ion Collider. The elliptic flow signal, v2, averaged over transverse momentum, reaches values of about 6% for relatively peripheral collisions and decreases for the more central collisions. This can be interpreted as the observation of a higher degree of thermalization than at lower collision energies. Pseudorapidity and transverse momentum dependence of elliptic flow are also presented.
Disciplines
Publication Date
January 15, 2001
DOI
10.1103/PhysRevLett.86.402
Publisher Statement
Copyright 2001 American Physical Society. Posted with permission.
Citation Information
K. H. Ackermann, Craig Ogilvie and et al.. "Elliptic Flow in Au + Au Collisions at √sNN=130 GeV" Physical Review Letters Vol. 86 (2001) p. 402 - 407 Available at: http://works.bepress.com/craig-ogilvie/64/