Charmonium dissociation cross sections and charmonium dissociation rates in hadronic matter

Abstract

K*-charmonium dissociation reactions in hadronic matter are studied in the Born approximation, in the quark-interchange mechanism, and with a temperature-dependent quark potential. We obtain the temperature dependence of unpolarized cross sections for K*-charmonium dissociation reactions which produce charmed mesons and charmed strange mesons. We use the cross sections for charmonium dissociation in collisions with pion, rho meson, kaon, vector kaon, and eta meson to calculate dissociation rates of charmonium with the five types of mesons. Because of the temperature dependence of the meson masses, dissociation cross sections, and meson distribution functions, the charmonium dissociation rates generally increase with the increase of temperature and decrease with the increase of charmonium momentum from 2.2 GeV/c. We find that the first derivative of the dissociation rate with respect to the charmonium momentum is zero when the charmonium is at rest. While the eta + psi' and eta + chi_c dissociation reactions can be neglected, the J/psi, psi', and chi_c dissociation are caused by the collisions with pion, rho meson, kaon, vector kaon, and eta meson.

arXiv comment58 pages, 30 figures, 4 tables

References in corpus (29)

• Global QCD Analysis and the CTEQ Parton Distributions
• Quark Mass and Flavour Dependence of the QCD Phase Transition
• Parton Distributions of the Proton
• Quarkonium Interactions in Hadronic Matter
• Pionic Parton Distributions Revisited
• 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'
• Dissociation of a Heavy Quarkonium at High Temperatures
• Mesonic Parton Densities Derived From Constituent Quark Model Constraints
• 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
• ${\Psi }^{\prime }/\Psi$ ratio in Nucleus-Nucleus Collisions : a Measure for the Chiral Symmetry Restoration Temperature ?
• Progress in the determination of the $J/\psi -\pi$ cross section
• Chiral Symmetry in Charmonium - Pion Cross Section
• The Relativistic N-body Problem in a Separable Two-Body Basis
• J/psi Absorption in Heavy Ion Collisions
• Hadronic and Electromagnetic Interactions of Quarkonia
• Charmonium-Nucleon Dissociation Cross Sections in the Quark Model
• Cross sections for meson-meson nonresonant reactions
• Temperature-dependent cross sections for charmonium dissociation in collisions with kaons and eta mesons in hadronic matter
• The dissociation of the J/psi by light mesons and chiral symmetry
• Temperature-dependent Cross Sections for Charmonium Dissociation in Collisions with Pions and Rhos in Hadronic Matter
• Closed-flavor pi + J/psi and pi + Upsilon Cross Sections at Low Energies from Dipion Decays

Cited by in corpus (5)

• $J/\psi$ regeneration in a hadron gas: an update
• Dissociation of large transverse-momentum prompt J/psi produced in Pb-Pb collisions at the LHC
• Impact of unitarization on the $J/\psi$-light meson cross section
• Quarkonium interactions with (hot) hadronic matter
• Dissociation Cross Sections of Large-Momentum Charmonia with Light Mesons in Hadronic Matter