出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We apply chiral perturbation theory to the pseudoscalar meson mass and decay constant data obtained
in the PACS-CS Project toward 2+1 flavor lattice QCD simulations with the O
a
-improved
Wilson quarks. We examine the existence of chiral logarithms in the quark mass range from
mud
47MeV down to 6 MeV on a
2
8 fm
3 box with the lattice spacing a
0
09fm. Several
low energy constants are determined. We also discuss the magnitude of finite size effects based
on chiral perturbation theory.
