Effect of in-medium spectral density of $D$ and $D^{\ast }$ mesons on the $J/\psi$ dissociation in hadronic matter

Abstract

The one-loop self-energy of the $D$ and $D^{\ast }$ mesons in a hot hadronic medium is evaluated using the real time formalism of thermal field theory. The interaction of the heavy open-charm mesons with the thermalized constituents $(\pi ,K,\eta )$ of the hadronic matter is treated in the covariant formalism of heavy meson chiral perturbation theory. The imaginary parts are extracted from the discontinuities of the self-energy function across the unitary and the Landau cuts. The non-zero contribution from the latter to the spectral density of $D$ and $D^{\ast }$ mesons opens a number of subthreshold decay channels of the $J/\psi$ leading to a significant increase in the dissociation width in hadronic matter.

To be Published in NPA

References in corpus (8)

• Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• D Mesons in Nuclear Matter: A DN Coupled-Channel Equations Approach
• Open charm in nuclear matter at finite temperature
• QCD sum rules for D and B mesons in nuclear matter
• $J/\Psi$-nuclear bound states
• Charm and hidden charm scalar mesons in the nuclear medium
• Real-time propagators at finite temperature and chemical potential
• Heavy flavor suppression: role of hadronic matter

Cited by in corpus (5)

• Pseudoscalar and vector open-charm mesons at finite temperature
• Properties of open and hidden charm mesons in light quark matter
• Charm and Bottom Hadrons in Hot Hadronic Matter
• $D$ mesons as a probe of Casimir effect for chiral symmetry breaking
• A comparative analysis of in-medium spectral functions for $N(940)$ and $N^{\ast }(1535)$ in real-time thermal field theory