Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10724495 | Physics Letters B | 2008 | 7 Pages |
Abstract
The velocity dependence of the thermal width of heavy quarkonia traveling with respect to the quark-gluon plasma is calculated up to the NLO in perturbative QCD. At the LO, the width decreases with increasing speed, whereas at the NLO it increases with a magnitude approximately proportional to the expectation value of the relative velocity between the quarkonium and a parton in thermal equilibrium. Such an asymptotic behavior is due to the NLO dissociation cross section converging to a nonvanishing value in the high energy limit.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Taesoo Song, Yongjae Park, Su Houng Lee, Cheuk-Yin Wong,