Comparing different freeze-out scenarios in azimuthal hadron correlations induced by fast partons

Details Comparing different freeze-out scenarios in azimuthal hadron correlations induced by fast partons Comparing different freeze-out scenarios in azimuthal hadron correlations induced by fast partons

2008-10-17

arxiv.org/abs/0810.3185v2

Eur.Phys.J.C62:271-275,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contribution to the Proceedings for 2008 Hot Quarks in Estes Park, CO, as accepted for publication in EPJ-C

Scientific paper

10.1140/epjc/s10052-009-0946-x

I review the linearized hydrodynamical treatment of a fast parton traversing a perturbative quark-gluon plasma. Using numerical solutions for the medium's response to the fast parton, I obtain the medium's distribution function which is then used in a Cooper-Frye freeze-out prescription to obtain an azimuthal particle spectrum. Two different freeze-out scenarios are considered which yield significantly different results. I conclude that any meaningful comparison of azimuthal hadron correlation functions to RHIC data requires implementing a realistic freeze-out scenario in an expanding medium.

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