Nuclear profile dependence of elliptic flow from a parton cascade

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  • 9 September 2003
Abstract
The transverse profile dependence of elliptic flow is studied in a parton cascade model. We demonstrate that the impact parameter dependence of elliptic flow depends sensitively on the transverse profile of initial particles, however, if elliptic flow is plotted as a function of the relative multiplicity, the nuclear profile dependence disappears. The insensitivity was found previously in a hydrodynamical calculation. Our calculations indicate that the insensitivity is also valid with additional viscous corrections. In addition, the minimum bias differential elliptic flow is demonstrated to be insensitive to the nuclear profile of the system.

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