1+1+1 Flavor QCD+QED Simulation at the Physical Point
1+1+1 Flavor QCD+QED Simulation at the Physical Point
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1 1 1 物理点风味 QCD QED 模拟
DOI：
10.1103/physrevd.86.034507
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发表时间：
2012
影响因子：
5
通讯作者：
Y.Nakamura
中科院分区：
文献类型：
--
作者：
PACS-CS Collaboration: K.-I.Ishikawa;Y.Kuramashi;Y.Nakamura
我们给出了在物理点上的激光模拟结果，其中通过重新加权技术将QED中的动力学夸克效应和上下夸克质量差结合在一起。物理夸克质量和晶格间距是以、和作为物理输入来确定的。在非微扰改进的威尔逊夸克作用和岩崎规范作用产生的物理点附近，用一组QCD组态进行了计算。我们用非微扰QCD重整化分别计算了上夸克、下夸克和奇异夸克的质量值。
We present the results offlavorsimulation at the physical point, in which the dynamical quark effects in QED and the up-down quark mass difference are incorporated by the reweighting technique. The physical quark masses together with the lattice spacing are determined with,,andas physical inputs. Calculations are carried out using a set offlavor QCD configurations near the physical point generated by the nonperturbatively-improved Wilson quark action and the Iwasaki gauge action aton alattice. We evaluate the values of the up, down and strange quark masses individually with nonperturbative QCD renormalization.