期刊
PHYSICAL REVIEW D
卷 86, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.86.034507
关键词
-
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan [18104005, 20340047, 20540248, 21340049, 22244018, 24540250]
- [20105001]
- [20105002]
- [20105003]
- [20105005]
- Grants-in-Aid for Scientific Research [24740143, 20105002, 18104005, 24540250, 22244018, 20540248] Funding Source: KAKEN
We present the results of 1 + 1 + 1 flavor QCD + QED simulation 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 m(pi+), m(K+), m(K0) and m(Omega-) as physical inputs. Calculations are carried out using a set of 2 + 1 flavor QCD configurations near the physical point generated by the nonperturbatively O(a)-improved Wilson quark action and the Iwasaki gauge action at beta = 1.9 on a 32(3) x 64 lattice. We evaluate the values of the up, down and strange quark masses individually with nonperturbative QCD renormalization.
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