Light meson physics from maximally twisted mass lattice QCD
Light meson physics from maximally twisted mass lattice QCD
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DOI：
10.1007/jhep08(2010)097
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发表时间：
2009-11
影响因子：
5.4
通讯作者：
R. Baron;P. Boucaud;P. Dimopoulos;R. Frezzotti;D. Palao;G. Rossi;F. Farchioni;G. Münster;
中科院分区：
文献类型：
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作者：
R. Baron;P. Boucaud;P. Dimopoulos;R. Frezzotti;D. Palao;G. Rossi;F. Farchioni;G. Münster;
我们提出了一个全面的调查轻介子物理使用最大扭曲的质量费米子N f= 2质量简并夸克味。通过采用四个值的晶格间距，空间晶格范围从2.0 fm到2.5 fm和赝标量质量的范围内280 μ m PS <$650 MeV，我们控制我们的计算的主要系统的影响。这使我们能够用SU（2）手征微扰理论来处理我们的N f= 2数据，并提取有效手征拉格朗日量的低能常数和衍生量，例如轻夸克质量。
We present a comprehensive investigation of light meson physics using maximally twisted mass fermions for N f= 2 mass-degenerate quark flavours. By employing four values of the lattice spacing, spatial lattice extents ranging from 2.0 fm to 2.5 fm and pseudo scalar masses in the range 280≲ m PS≲ 650MeV we control the major systematic effects of our calculation. This enables us to confront our N f= 2 data with SU (2) chiral perturbation theory and extract low energy constants of the effective chiral Lagrangian and derived quantities, such as the light quark mass.