Enhancement of gluonic dissociation of J/psi in viscous quark-gluon plasma- art. no. 057901

We have investigated the effect of viscosity on the gluonic dissociation of J/psi in an equilibrating plasma. Suppression of J/psi due to gluonic diss ociation depend on the temperature and also on the chemical equilibration r ate. In an equilibrating plasma, viscosity affects the temperature evolutio n and also the chemical equilibration rate, requiring both of them to evolv e slowly, compared to their ideal counter part. For Au+Au collisions at RHI C and LHC energies, gluonic dissociation of J/psi increases for a viscous p lasma. Low P-T J/psi 's are found to be more suppressed due to viscosity th an the high P-T ones. Also the effect is more at LHC energy than at RHIC en ergy.