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Article Dans Une Revue Physics Letters B Année : 2005

Heavy-quarkonium interaction in QCD at finite temperature

Joseph Cugnon
  • Fonction : Auteur
Yuri Kalinovsky
  • Fonction : Auteur

Résumé

We explore the temperature dependence of the heavy-quarkonium interaction based on the Bhanot-Peskin leading order perturbative QCD analysis. The Wilson coefficients are computed solving the Schrodinger equation in a screened Coulomb heavy-quark potential. The inverse Mellin transform of the Wilson coefficients then allows for the computation of the 1S and 2S heavy-quarkonium gluon and pion total cross section at finite screening/temperature. As a phenomenological illustration, the temperature dependence of the 1S charmonium thermal width is determined and compared to recent lattice QCD results.

Dates et versions

hal-00010090 , version 1 (09-10-2005)

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Francois Arleo, Joseph Cugnon, Yuri Kalinovsky. Heavy-quarkonium interaction in QCD at finite temperature. Physics Letters B, 2005, 614, pp.44-52. ⟨hal-00010090⟩
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