Gauge – invariant field – strength correlators in pure
نویسندگان
چکیده
We study by numerical simulations on a lattice the behaviour 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 flavours. 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. (PACS codes: 12.38.Gc, 11.10.Wx) Partially supported by MIUR (Italian Ministry of the University and of Scientific and Technological Research) and by the INTAS contract 00–0110.
منابع مشابه
Gauge Invariant Field Strength Correlators in Qcd.
Gauge invariant correlators in QCD are studied on the lattice. A systematic determination of the correlation lengths for gluon field strength correlators and quark correlators is made. The measurement of the gluon and quark condensates is discussed.
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