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Elliptic flow in Au+Au collisions at sqrt(s_NN) = 130 GeV

STAR Collaboration·K. H. Ackermann
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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 sqrt(s_NN)=130 GeV using the STAR TPC at RHIC. The elliptic flow signal, v_2, 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.

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STAR Collaboration, K. H. Ackermann. 2000-09-12. Elliptic flow in Au+Au collisions at sqrt(s_NN) = 130 GeV. https://doi.org/10.1103/physrevlett.86.402

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