Free energy versus internal energy potential for heavy quark systems at finite temperature Academic Article uri icon


  • 2014 Elsevier B.V. The strength of the J/ wave function at origin |(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 |(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.

published proceedings

  • Nuclear Physics A

author list (cited authors)

  • Song, T., Lee, S. H., Morita, K., & Ko, C. M.

citation count

  • 0

complete list of authors

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

publication date

  • November 2014