Heavy-quarkonium interaction in QCD at finite temperature
High Energy Physics - Phenomenology
2010-04-05 v2 Nuclear Theory
Abstract
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.
Cite
@article{arxiv.hep-ph/0410295,
title = {Heavy-quarkonium interaction in QCD at finite temperature},
author = {Francois Arleo and Joseph Cugnon and Yuri Kalinovsky},
journal= {arXiv preprint arXiv:hep-ph/0410295},
year = {2010}
}
Comments
14 pages, 5 figures. Clarification added, published version