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标题：2+1 flavor light hadron spectrum and quark masses with the O(a) improved Wilson-clover quark formalism
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作者：T. Ishikawa
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2006
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present a summary of results of the joint CP-PACS and JLQCD project toward a 2+1 flavor full QCD simulation with the O(a)-improvedWilson quark formalism and the Iwasaki gauge action. Configurations were generated during 2002–2005 at three lattice spacings, a ∼ 0.076, 0.100 and 0.122 fm, keeping the physical volume constant at (2.0 fm)3. Up and down quark masses are taken in the range mPS/mV ∼ 0.6−0.78. We have completed the analysis for the light meson spectrum and quark masses in the continuum limit using the full configuration set. The predicted meson masses reproduce experimental values in the continuum limit at a 1% level. The average up and down, and strange quark masses turn out to be mMS ud (m = 2 GeV) = 3.50(14)(+26 −15) MeV and mMS s (m = 2 GeV) = 91.8(3.9)(+6.8 −4.1) MeV. We discuss our future strategy toward definitive results on hadron spectroscopy with the Wilson-clover formalism.