出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We calculate the meson correlators in the e -regime of two-flavor QCD. On a 163 £32 lattice
with a » 0:11 fm, the lattice simulations are performed with the dynamical overlap fermions.
We reduce the sea quark mass down to » 3 MeV and the valence quark masses are taken in the
range 1–4 MeV. The meson correlators in various channels are compared with the predictions
of (partially quenched) chiral perturbation theory (ChPT). Including the NLO order of the e -
expansion, we extract the leading-order low energy constants of ChPT, the pion decay constant F
and the chiral condensate S, as F = 87:3(5:5) MeV and SMS = [237:8(4:0) MeV]3.
