Light meson spectrum with $N_f=2$ dynamical overlap fermions

Noaki, J.; Aoki, S.; Fukaya, H.; Hashimoto, S.; Kaneko, T.; Matsufuru, H.; Onogi, T.; Shintani, E.; Yamada, N.

Light meson spectrum with $N_f=2$ dynamical overlap fermions

Authors

Description

We present numerical simulation of QCD with two dynamical quark flavors described by the overlap fermion action on a $16^3\times 32\times (0.12 {\rm fm})^4$ lattice. We calculate pseudo-scalar masses and decay constants and investigate their chiral properties. We test the consistency of our data with the two-loop chiral perturbation theory predictions, which should also be valid at finite lattice spacings because of the exact chiral symmetry, including the finite size effects.
7 pages, 9 figures, contribution to XXV International Symposium on Lattice Field Theory, July 2007, Regensburg