Temperature-dependent Cross Sections for Charmonium Dissociation in Collisions with Pions and Rhos in Hadronic Matter

Abstract

Meson-charmonium dissociation reactions governed by the quark interchange are studied with temperature-dependent quark potentials. Quark-antiquark relative-motion wave functions and masses of charmonia and charmed mesons are determined by the central spin-independent part of the potentials or by the central spin-independent part and a smeared spin-spin interaction. The prominent temperature dependence of the masses is found. Based on the potentials, the wave functions, and the meson masses, we obtain temperature-dependent cross sections for fifteen pion-charmonium and rho-charmonium dissociation reactions. The numerical cross sections are parametrized for future applications in hadronic matter. The particular temperature dependence of the J/psi bound state leads to unusual behavior of the cross sections for endothermic J/psi dissociation reactions. The quantum numbers of psi' and chi_c can not make their difference in mass in the temperature region 0.6T_c < T < T_c, but can make the psi' dissociation different from the chi_c dissociation.

52 pages, 23 figures, 6 tables

References in corpus (22)

• Quark Mass and Flavour Dependence of the QCD Phase Transition
• Quarkonium Interactions in Hadronic Matter
• Model for $J/\psi$ absorption in hadronic matter
• J/psi absorption by pi and rho mesons in a meson exchange model with anomalous parity interactions
• A Model of Charmonium Absorption by Light Mesons
• Charmonium dissociation in hadronic matter
• Quark exchange model for charmonium dissociation in hot hadronic matter
• Hadronic interactions of the J/psi
• Cross Sections for pi- and rho-induced Dissociation of J/psi and psi'
• Heavy Quarkonium Dissociation Cross Sections in Relativistic Heavy-Ion Collisions
• Dissociation of a Heavy Quarkonium at High Temperatures
• Meson-Meson Scattering in the Quark Model: Spin Dependence and Exotic Channels
• Heavy-quarkonium hadron cross section in QCD at leading twist
• Dissociation cross sections of ground-state and excited charmonia with light mesons in the quark model
• Chiral Symmetry in Charmonium - Pion Cross Section
• Effective hadronic Lagrangian for charm mesons
• The Relativistic N-body Problem in a Separable Two-Body Basis
• J/psi Absorption in Heavy Ion Collisions
• J/psi dissociation by light mesons in an extended Nambu Jona-Lasinio model
• Cross sections for meson-meson nonresonant reactions
• The dissociation of the J/psi by light mesons and chiral symmetry
• Temperature-dependent cross sections for meson-meson nonresonant reactions in hadronic matter

Cited by in corpus (10)

• Pseudoscalar and vector open-charm mesons at finite temperature
• $J/\psi$ regeneration in a hadron gas: an update
• Properties of open and hidden charm mesons in light quark matter
• Temperature-dependent cross sections for charmonium dissociation in collisions with kaons and eta mesons in hadronic matter
• Temperature dependence of cross sections for meson-meson nonresonant reactions in hadronic matter
• Charmonium dissociation cross sections and charmonium dissociation rates in hadronic matter
• Quarkonium interactions with (hot) hadronic matter
• Relation between quark-antiquark potential and quark-antiquark free energy in hadronic matter
• Dissociation Cross Sections of Large-Momentum Charmonia with Light Mesons in Hadronic Matter
• Production of $\psi (4040)$, $\psi (4160)$, and $\psi (4415)$ mesons in strong interactions