Journal
PHYSICS LETTERS B
Volume 678, Issue 1, Pages 86-89Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2009.05.067
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Funding
- Academy of Finland [128792]
- Academy of Finland (AKA) [128792, 128792] Funding Source: Academy of Finland (AKA)
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We consider the dissociation of heavy quarkonium in a medium close to thermal equilibrium but with a small momentum space anisotropy. Dissociation is defined to take place when the width of the ground state equals its binding energy. We show that if the anisotropic medium is obtained isentropically from the equilibrium one, then to first order in the anisotropy parameter the dissociation temperature remains unchanged. If, in contrast, the non-equilibrium system has a smaller entropy density than the equilibrium one, then the dissociation temperature increases with respect to the isotropic case. by Lip to similar to 10% for modest anisotropies. (C) 2009 Elsevier B.V. All rights reserved.
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