Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-02-05
Phys.Rev.D75:105019,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages, 5 figures
Scientific paper
10.1103/PhysRevD.75.105019
A recently proposed phenomenological model, which includes non perturbative effects from dimension two gluon condensates, is applied to analyze the available lattice data for the heavy quark free energy in the deconfined phase of quenched QCD. For large $q\bar{q}$ separations we recover previous results for the Polyakov loop, exhibiting unequivocal condensate contributions. For the $q\bar{q}$ potential at finite temperature and finite separation we find that a good overall description of the lattice data can be achieved once the condensate is properly accounted for. In addition, the model predicts a duality between the zero temperature potential as a function of the $q\bar{q}$ separation, on the one hand, and the quark selfenergy as a function of the temperature, on the other, which turns out to be satisfied to a high degree by the lattice data.
Arriola Enrique Ruiz
Megias Eugenio
Salcedo L. L.
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