出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:We report on the results of our calculation of meson correlators in a finite volume. The calculation
is carried out in the quenched approximation near the chiral limit (down to mq = 2:6 MeV) using
the overlap fermion. For these small quark masses, the scalar and pseudo-scalar correlators are
well approximated with a few hundred eigenmodes. The results for both connected and disconnected
correlators are compared with the theoretical predictions of quenched chiral perturbation
theory.