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Velocity Dependence of Charmonium Dissociation Temperature in High-Energy Nuclear Collisions

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arxiv 1210.7449 v2 pith:GPHGDAW4 submitted 2012-10-28 nucl-th

Velocity Dependence of Charmonium Dissociation Temperature in High-Energy Nuclear Collisions

classification nucl-th
keywords temperaturecollisionsdissociationnuclearquarkoniumvelocityhighhigh-energy
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In high-energy nuclear collisions, heavy quark potential at finite temperature controls the quarkonium production. Including the relaxation of the medium induced by the relative velocity between quarkonia and the deconfined expanding matter, the Debye screening is reduced and the quarkonium dissociation takes place at a higher temperature. As a consequence of the velocity dependent dissociation temperature, the quarkonium suppression at high transverse momentum is significantly weakened in high energy nuclear collisions at RHIC and LHC.

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