1+1+1 flavor QCD plus QED simulation at the physical point

被引：50

作者：

Aoki, S. ^{[1
,2
]}

Ishikawa, K. -I. ^{[3
]}

Ishizuka, N. ^{[1
,2
]}

Kanaya, K. ^{[2
]}

Kuramashi, Y. ^{[1
,2
,4
]}

Nakamura, Y. ^{[4
]}

Namekawa, Y. ^{[1
]}

Okawa, M. ^{[3
]}

Taniguchi, Y. ^{[1
,2
]}

Ukawa, A. ^{[1
,2
]}

Ukita, N. ^{[1
]}

Yoshie, T. ^{[1
,2
]}

机构：

[1] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan

[2] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058571, Japan

[3] Hiroshima Univ, Grad Sch Sci, Hiroshima 7398526, Japan

[4] RIKEN Adv Inst Computat Sci, Kobe, Hyogo 6500047, Japan

来源：

PHYSICAL REVIEW D | 2012年 / 86卷 / 03期

关键词：

FINITE-SIZE;

D O I：

10.1103/PhysRevD.86.034507

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：6

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