We study by numerical simulations on a lattice the behavior of the gauge-invariant two-point correlation functions of the gauge-field strengths across the deconfinement phase transition, both for the pure-gauge SU(3) theory and for full QCD with two flavors. Quenched data agree within errors with previous determinations, but have much higher statistics. A best-fit analysis of the data has been performed, both for the quenched and the full-QCD case, showing that the electric gluon condensate drops to zero at the deconfining phase transition.

GAUGE INVARIANT FIELD STRENGTH CORRELATORS IN PURE YANG-MILLS AND FULL QCD AT FINITE TEMPERATURE

DI GIACOMO, ADRIANO;D'ELIA, MASSIMO;MEGGIOLARO, ENRICO
2003

Abstract

We study by numerical simulations on a lattice the behavior of the gauge-invariant two-point correlation functions of the gauge-field strengths across the deconfinement phase transition, both for the pure-gauge SU(3) theory and for full QCD with two flavors. Quenched data agree within errors with previous determinations, but have much higher statistics. A best-fit analysis of the data has been performed, both for the quenched and the full-QCD case, showing that the electric gluon condensate drops to zero at the deconfining phase transition.
DI GIACOMO, Adriano; D'Elia, Massimo; Meggiolaro, Enrico
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/188161
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