$J/ψ$ Gluonic Dissociation Revisited : I. Fugacity, Flux And Formation Time Effects

Details $J/ψ$ Gluonic Dissociation Revisited : I. Fugacity, Flux And Formation Time Effects $J/ψ$ Gluonic Dissociation Revisited : I. Fugacity, Flux And Formation Time Effects

2004-01-13

arxiv.org/abs/nucl-th/0401025v1

Eur.Phys.J. C37 (2004) 115-121

Physics

Nuclear Physics

Nuclear Theory

15 pages, 6 figures

Scientific paper

We revisit the standard treatment [Xu, Kharzeev, Satz and Wang, Phys. Rev. C {\bf 53}, 3051 (1996)] of $J/\psi$ suppression due to gluonic bombardment in an equilibrating quark-gluon plasma. Effects arising from gluon fugacity, relative $g-\psi$ flux, and $\psi$ meson formation time are correctly incorporated in the formulation of the gluon number density, velocity-weighted cross section, and the survival probability. Our new formulae are applied to numerically study the pattern of $J/\psi$ suppression in the central rapidity region at RHIC/LHC energies. The temperature and transverse momentum dependence of our graphs have noticeable differences from those of Xu et al.

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