标题： 轻夸克质量在具有精确手征对称性的冻结QCD中 显示英文标题

标题： Light quark masses in quenched QCD with exact chiral symmetry

摘要： 赝标介子质量公式中的参数在冻结手征微扰理论的一环阶中由使用重叠狄拉克算符的冻结格点QCD确定，并由此结合介子和K介子质量的实验输入以及介子衰变常数确定轻夸克质量。我们的结果是在尺度$ \mu = 2 $ GeV 的$ \bar{MS} $方案中的$ m_{u,d} = 5.3 \pm 0.3 $ MeV 和$ m_s = 115\pm 8 $ MeV。 显示英文摘要

摘要： The parameters in the pseudoscalar meson mass formula in quenched chiral perturbation theory to one-loop order are determined by quenched lattice QCD with overlap Dirac operator, and from which the light quark masses are determined with the experimental inputs of pion and kaon masses, and the pion decay constant. Our results are $ m_{u,d} = 5.3 \pm 0.3 $ MeV, and $ m_s = 115\pm 8 $ MeV, in the $ \bar{MS} $ scheme at scale $ \mu = 2 $ GeV.