Charmonium-hadron interactions from QCD

Abstract

The heavy quark system is an excellent probe to learn about the QCD dynamics at finite density. First, we discuss the properties of the $J/\psi$ and $D$ meson at finite nucleon density. We discuss why their properties should change at finite density and then introduce an exact QCD relation among these hadron properties and the energy momentum tensor of the medium. Second, we discuss attempts to calculate charmonium-hadron total cross section using effective hadronic models and perturbative QCD. We emphasize a recent calculation, where the cross section is derived using QCD factorization theorem. We conclude by discussing some challenges for SIS 200.

8 pages, Presented at 6th International Conference on Strange Quarks in Matter: 2001: A Flavorspace Odyssey (SQM2001), Frankfurt, Germany, 25-29 Sep 2001, submitted to J. Phys. G

References in corpus (5)

• Quarkonium Feed-Down and Sequential Suppression
• String Breaking and Quarkonium Dissociation at Finite Temperatures
• Heavy Quarkonium Dissociation Cross Sections in Relativistic Heavy-Ion Collisions
• Dissociation of a Heavy Quarkonium at High Temperatures
• Heavy-quarkonium hadron cross section in QCD at leading twist

Cited by in corpus (5)

• Quarkonium-Hadron Interactions in Perturbative QCD
• Hadronic form factors and the $J/\psi$ secondary production cross section: an update
• Progress in the determination of the $J/\psi -\pi$ cross section
• $J/\psi$-kaon cross section in meson exchange model
• J/psi absorption by nucleons in the meson-exchange model