出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present preliminary results of the PACS-CS project which simulates 2+1 flavor lattice QCD
toward the physical point with the nonperturbatively O(a)-improved Wilson quark action and the
Iwasaki gauge action. Calculations are carried out at b = 1:9 on a 323 £64 lattice with the use
of the domain-decomposed HMC algorithm to reduce the up-down quark mass. The resulting
pseudoscalar meson masses range from 730 MeV down to 210 MeV. We discuss the physical
results including the chiral analysis in the pseudoscalar meson sector and the hadron spectrum.
Some algorithmic issues are also discussed.
