The light quark masses with the Wilson quark action using chiral ward identities

被引:3
作者
Aoki, S [1 ]
Fukugita, M
Hashimoto, S
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kuramashi, Y
Okawa, M
Ukawa, A
Yoshie, T
机构
[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 305, Japan
[2] Univ Tokyo, Inst Cosm Ray Res, Tanashi, Tokyo 188, Japan
[3] KEK, High Energy Accelerator Res Org, Ctr Res Comp, Tsukuba, Ibaraki 305, Japan
[4] Univ Tsukuba, Ctr Computat Phys, Tsukuba, Ibaraki 305, Japan
[5] KEK, High Energy Accelerator Res Org, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 305, Japan
关键词
D O I
10.1016/S0920-5632(97)00744-5
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We present results for the light quark masses for the Wilson quark action obtained with the PCAC relation for the one-link extended axial vector current in quenched QCD at beta = 5.9-6.5. This method leads to a remarkable improvement of scaling behavior of the light quark masses compared to the conventional method. We obtain (m) over bar(t) = 3.87(37)MeV for the averaged up and down quark mass and (m) over bar(s) = 97(9)MeV for the strange quark mass in the <(MS)over bar> scheme at mu = 2GeV.
引用
收藏
页码:275 / 277
页数:3
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