Heavy Quarkonium Dissociation Cross Sections in Relativistic Heavy-Ion Collisions

Details Heavy Quarkonium Dissociation Cross Sections in Relativistic Heavy-Ion Collisions Heavy Quarkonium Dissociation Cross Sections in Relativistic Heavy-Ion Collisions

2001-06-28

arxiv.org/abs/nucl-th/0106067v1

Phys.Rev. C65 (2002) 014903; Erratum-ibid. C66 (2002) 029901

Physics

Nuclear Physics

Nuclear Theory

38 pages, in LaTex

Scientific paper

10.1103/PhysRevC.65.014903

Many of the hadron-hadron cross sections required for the study of the dynamics of matter produced in relativistic heavy-ion collisions can be calculated using the quark-interchange model. Here we evaluate the low-energy dissociation cross sections of $J/\psi$, $\psi'$, $\chi$, $\Upsilon$, and $\Upsilon'$ in collision with $\pi$, $\rho$, and $K$, which are important for the interpretation of heavy-quarkonium suppression as a signature for the quark gluon plasma. These comover dissociation processes also contribute to heavy-quarkonium suppression, and must be understood and incorporated in simulations of heavy-ion collisions before QGP formation can be established through this signature.

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