Quarkonium formation time in relativistic heavy-ion collisions

Su Houng Lee, Che Ming Ko, Taesoo Song

Research output: Contribution to journalArticle

Abstract

We have studied the quarkonium formation time in relativistic heavy-ion collisions from the space-time correlator of heavy quark vector currents in a hydrodynamics background. Using in-medium quarkonia properties determined with the heavy quark potential taken to be the free energy from lattice calculations and taking into account the fact that quarkonia can only be formed below their dissociation temperatures due to color screening, we have found that the formation time of a quarkonium is significantly increased in a medium, compared to its value in the vacuum. We have further found that including the effect of formation time enhances appreciably the survivability of a quarkonium in the hot dense matter produced in a heavy ion collision. Relevance of our results to the understanding of quarkonium production in relativistic heavy ion collisions is briefly discussed.

Original languageEnglish
Pages (from-to)137-140
Number of pages4
JournalNuclear and Particle Physics Proceedings
Volume276-278
DOIs
Publication statusPublished - 2016 Jul 1

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ionic collisions
quarks
vector currents
correlators
screening
free energy
hydrodynamics
dissociation
color
vacuum
temperature

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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abstract = "We have studied the quarkonium formation time in relativistic heavy-ion collisions from the space-time correlator of heavy quark vector currents in a hydrodynamics background. Using in-medium quarkonia properties determined with the heavy quark potential taken to be the free energy from lattice calculations and taking into account the fact that quarkonia can only be formed below their dissociation temperatures due to color screening, we have found that the formation time of a quarkonium is significantly increased in a medium, compared to its value in the vacuum. We have further found that including the effect of formation time enhances appreciably the survivability of a quarkonium in the hot dense matter produced in a heavy ion collision. Relevance of our results to the understanding of quarkonium production in relativistic heavy ion collisions is briefly discussed.",
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Quarkonium formation time in relativistic heavy-ion collisions. / Lee, Su Houng; Ko, Che Ming; Song, Taesoo.

In: Nuclear and Particle Physics Proceedings, Vol. 276-278, 01.07.2016, p. 137-140.

Research output: Contribution to journalArticle

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