The thermal width of heavy quarkonia moving in quark-gluon plasma

Taesoo Song, Yongjae Park, Su Houng Lee, Cheuk Yin Wong

Research output: Contribution to journalArticle

26 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)621-627
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume659
Issue number3
DOIs
Publication statusPublished - 2008 Jan 24

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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