We study, by numerical simulations on a lattice, the behavior of the gauge-invariant quark-antiquark nonlocal condensates in the QCD vacuum with dynamical fermions. A determination is also done in the quenched approximation and the results are compared with the full-QCD case. The fermionic correlation length is extracted and compared with the analogous gluonic quantity.
Gauge invariant quark - anti-quark nonlocal condensates in lattice QCD
D'ELIA, MASSIMO;
1999-01-01
Abstract
We study, by numerical simulations on a lattice, the behavior of the gauge-invariant quark-antiquark nonlocal condensates in the QCD vacuum with dynamical fermions. A determination is also done in the quenched approximation and the results are compared with the full-QCD case. The fermionic correlation length is extracted and compared with the analogous gluonic quantity.
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