Vector and Axial-Vector Propagators in the ε-Regime of QCD
arXiv:hep-lat/0309015 · doi:10.1016/S0920-5632(03)02703-8
Abstract
Using quenched and unquenched chiral perturbation theory we compute vector and axial current two-point functions at finite volume and fixed gauge field topology, in the so-called ε-regime of QCD. A comparison of these results with finite volume lattice calculations allows to determine the parameters of the corresponding chiral Lagrangians.
Lattice2003(topology)