Light quark masses in quenched QCD with exact chiral symmetry

被引：9
|
作者：
Chiu, TW [1 ]
Hsieh, TH [1 ]
机构：
[1] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan
来源：
PHYSICS LETTERS B | 2002年 / 538卷 / 3-4期
关键词：
chiral perturbation theory; chiral symmetry; lattice QCD; overlap Dirac quark;
D O I：
10.1016/S0370-2693(02)02023-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The parameters in the pseudoscalar meson mass formula in quenched chiral perturbation theory to one-loop order are determined by quenched lattice QCD with overlap Dirac operator, and from which the light quark masses are determined with the experimental inputs of pion and kaon masses, and the pion decay constant. Our results are m(a.d) = 5.3 +/- 0.3 MeV, and m(s) = 115 +/- 8 MeV, in the (MS) over bar scheme at scale mu = 2 GeV. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：298 / 300
页数：3
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