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Lattice quark masses:: a non-perturbative measurement

被引：51
作者：
Giménez, V
Giusti, L
Rapuano, F
Talevi, M
机构：
[1] Univ Valencia, Dept Fis Teor, E-46100 Valencia, Spain
[2] Univ Valencia, IFIC, E-46100 Valencia, Spain
[3] Scuola Normale Super Pisa, I-56100 Pisa, Italy
[4] Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy
[5] Univ Roma La Sapienza, Dipartimento Fis, I-00100 Rome, Italy
[6] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy
[7] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland
来源：
NUCLEAR PHYSICS B | 1999年 / 540卷 / 1-2期
关键词：
D O I：
10.1016/S0550-3213(98)00759-7
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 discuss the renormalization of different definitions of quark masses in the Wilson and the tree-level improved SW-Clover fermionic action. Using perturbative and non-perturbative renormalization constants, we study quark masses in the MS scheme from Lattice QCD in the quenched approximation at beta = 6.0, beta = 6.2 and beta = 6.4 for both actions. A reliable extrapolation to the continuum limit is however not yet possible. The most reliable results are (m) over bar(<(MS)over bar>)(2 GeV) = 5.7+/-0.1+/-0.8 MeV, m(s)(<(MS)over bar>)(2 GeV) = 130+/-2+/-18 MeV and m(c)(<(MS)over bar>) (2 GeV) = 1662+/-30+/-230 MeV. (C) 1999 Elsevier Science B.V.
引用
收藏
页码：472 / 490
页数：19
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