Lattice determination of light quark masses
Lattice determination of light quark masses
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轻夸克质量的晶格测定
DOI:
10.1103/physrevd.62.054504
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发表时间:
1999
期刊:
影响因子:
--
通讯作者:
P. Stephenson
中科院分区:
文献类型:
--
作者:
M. Göckeler;R. Horsley;H. Oelrich;D. Petters;D. Pleiter;P. Rakow;G. Schierholz;P. Stephenson
A fully non-perturbative lattice determination of the up/down and strange quark masses is given for quenched QCD using both, $O(a)$ improved Wilson fermions and ordinary Wilson fermions. For the strange quark mass with $O(a)$ improved fermions we obtain $m^{\msbar}_s(\mu=2 {GeV}) = 105(4) {MeV}$, using the interquark force scale $r_0$. Due to quenching problems fits are only possible for quark masses larger than the strange quark mass. If we extrapolate our fits to the up/down quark mass we find for the average mass $m^{\msbar}_l(\mu=2 {GeV}) = 4.4(2) {MeV}$.