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arXiv 1903.04094hep-lat
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Wilson费米子$N_f=2+1$模拟的光夸克和奇异夸克质量

Light and strange quark masses from $N_f=2+1$ simulations with Wilson fermions

M. Bruno, I. Campos, J. Koponen, C. Pena, D. Preti, A. Ramos, A. Vladikas

摘要:

我们对$u/d$和$s$夸克质量进行了近乎最终的分析,使用[PRD 95(2017)074504]中报告的PCAC夸克质量提取。这些数据是基于CLS $N_f = 2 + 1$模拟,采用Wilson/Clover夸克和Lüscher-Weisz规范作用量,在四个$β$值(即晶格间距)和一系列夸克质量。我们使用[EPJC 78(2018)387]的ALPHA结果进行非微扰夸克质量重整化和在薛定谔泛函方案中从强子到电弱尺度的RG运行。夸克质量在$\overline{\rm MS}$方案和RGI量中都被引用。

英文摘要:

We present a nearly final analysis of the $u/d$ and $s$ quark masses, extracted using the PCAC quark masses reported in [PRD 95 (2017) 074504]. The data is based on the CLS $N_f = 2 + 1$ simulations with Wilson/Clover quarks and Lüscher-Weisz gauge action, at four $β$ values (i.e. lattice spacings) and a range of quark masses. We use the ALPHA results of [EPJC 78 (2018) 387] for non-perturbative quark mass renormalisation and RG-running from hadronic to electroweak scales in the Schrödinger Functional scheme. Quark masses are quoted both in the $\overline{\rm MS}$ scheme and as RGI quantities.

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