Free energy versus internal energy potential for heavy quark systems at finite temperature

Taesoo Song, Su Houng Lee, Kenji Morita, Che Ming Ko

Research output: Contribution to journalArticle

Abstract

The strength of the J/ψ wave function at origin |ψ(0)| is calculated by using the finite temperature QCD sum rule with the gluon condensates determined from the lattice QCD. The result is compared with that from a potential model based on the static free or internal energy obtained from lattice calculations. We find that the |ψ(0)| decreases with temperature around the deconfinement transition temperature both in the QCD sum rule and in the potential model with the free energy potential. Our result thus suggests that the free energy potential from lattice calculations is appropriate for describing the properties of charmonia at finite temperature.

Original languageEnglish
Pages (from-to)607-611
Number of pages5
JournalNuclear Physics A
Volume931
DOIs
Publication statusPublished - 2014 Nov 1

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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