Gauge–invariant quark–antiquark nonlocal condensates in lattice QCD
نویسندگان
چکیده
We study, by numerical simulations on a lattice, the behaviour 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. (PACS code: 12.38.Gc) ∗Partially supported by MURST and by the EC TMR program ERBFMRX–CT97–0122.
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