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Directed and Elliptic Flow

Sven Soff·Steffen A. Bass·Marcus Bleicher·Horst Stoecker·Walter Greiner
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Abstract

We compare microscopic transport model calculations to recent data on the directed and elliptic flow of various hadrons in 2 - 10 A GeV Au+Au and Pb (158 A GeV) Pb collisions. For the Au+Au excitation function a transition from the squeeze-out to an in-plane enhanced emission is consistently described with mean field potentials corresponding to one incompressibility. For the Pb (158 A GeV) Pb system the elliptic flow prefers in-plane emission both for protons and pions, the directed flow of protons is opposite to that of the pions, which exhibit anti-flow. Strong directed transverse flow is present for protons and Lambdas in Au (6 A GeV) Au collisions as well. Both for the SPS and the AGS energies the agreement between data and calculations is remarkable.

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Sven Soff, Steffen A. Bass, Marcus Bleicher, Horst Stoecker, Walter Greiner. 1999-03-25. Directed and Elliptic Flow. https://arxiv.org/abs/nucl-th/9903061

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