Gluon dissociation of $J/ψ$ in anisotropic {\em Quark-Gluon-Plasma}

Details Gluon dissociation of $J/ψ$ in anisotropic {\em Quark-Gluon-Plasma} Gluon dissociation of $J/ψ$ in anisotropic {\em Quark-Gluon-Plasma}

2011-05-27

arxiv.org/abs/1105.5528v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 10 eps figures

Scientific paper

We calculate the gluon dissociation cross-section in an anisotropic quark gluon plasma expected to be formed due relativistic nucleus-nucleus collisions. The initial rapid longitudinal expansion of the system leads to momentum space anisotropy due which the observables are affected in such a system. We show that the thermally weighted cross-section of gluon dissociation undergoes modification in anisotropic plasma leading to a decreased probability of $J/\psi$ suppression both for RHIC and LHC energies. The dependence of the cross section as well as the survival probability on the direction of propagation of the charmonium with respect to the anisotropy axis are presented. The sensitivity of the survival probability on the initial conditions have also been demonstrated.

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