Angular Dependence of Jet Quenching Indicates Its Strong Enhancement Near the QCD Phase Transition

Details Angular Dependence of Jet Quenching Indicates Its Strong Enhancement Near the QCD Phase Transition Angular Dependence of Jet Quenching Indicates Its Strong Enhancement Near the QCD Phase Transition

2008-10-22

arxiv.org/abs/0810.4116v3

Phys.Rev.Lett.102:202302,2009

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures. Final version published as PRL102,202302(2009)

Scientific paper

10.1103/PhysRevLett.102.202302

We study dependence of jet quenching on matter density, using "tomography" of the fireball provided by RHIC data on azimuthal anisotropy $v_2$ of high $p_t$ hadron yield at different centralities. Slicing the fireball into shells with constant (entropy) density, we derive a "layer-wise geometrical limit" $v_2^{max}$ which is indeed above the data $v_2T_c$. One possible reason for that may be recent indications that the near-$T_c$ region is a magnetic plasma of relatively light color-magnetic monopoles.

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