Novel features of $J/Ψ$ dissociation in matter

We make a detailed study of the effect that the recently predicted modification of the in-medium masses of charmed mesons would have on $J/Ψ$ dissociation on pion and $ρ$-meson comovers in relativistic heavy ion collisions. We find a substantial dependence of the $J/Ψ$ absorption rates on the density and temperature of the nuclear matter. This suggests that a quantitative analysis of $J/Ψ$ dissociation in nucleus nucleus collisions should include the effects of the modification of meson masses in dense matter.

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