Non-perturbative renormalization factors of bilinear quark operators for Kogut-Susskind fermions and light quark masses in quenched QCD

被引：3

作者：

Aoki, S ^{[1
]}

Fukugita, M

Hashimoto, S

Ishikawa, KI

Ishizuka, N

Iwasaki, Y

Kanaya, K

Kaneda, T

Kaya, S

Kuramashi, Y

Okawa, M

Onogi, T

Tominaga, S

Tsutsui, N

Ukawa, A

Yamada, N

Yoshié, T

机构：

[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan

[2] Univ Tokyo, Inst Cosm Ray Res, Tokyo 1888502, Japan

[3] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[4] Hiroshima Univ, Dept Phys, Hiroshima 7398526, Japan

[5] Univ Tsukuba, Ctr Computat Phys, Tsukuba, Ibaraki 3058577, Japan

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1999年 / 73卷

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/S0920-5632(99)85047-6

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：

Light quark masses are computed for Kogut-Susskind fermions by evaluating non-perturbatively the renormalization factor for bilinear quark operators. Calculations are carried out in the quenched approximation at beta = 6.0, 6.2, and 6.4. For the average up and down quark mass we find m<(MS)over bar>(2GeV) = 4.15(27)MeV in the continuum limit, which is significantly larger than 3.51(20)MeV (q(*) = 1/a) or 3.40(21)MeV (q(*) = pi/a) obtained with the one-loop perturbative renormalization factor.

引用

页码：279 / 281

页数：3

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