Status of the QCD sum rule determinations of the light quark masses

被引:3
|
作者
Maltman, K
机构
[1] York Univ, Dept Math & Stat, Toronto, ON M3J 1P3, Canada
[2] Univ Adelaide, Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia
关键词
D O I
10.1016/S0920-5632(02)01412-3
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 summarize the current status of QCD sum rule determinations of the light quark masses, We show that results obtained using the sum rule and lattice approaches are in good agreement, and that the sum rule errors have been significantly reduced in the last few years. We also comment on the status of pseudoscalar-sum-rule-based quark mass bounds which, in the past, were sometimes said to rule out the low quark mass values produced by the lattice, pointing out that bounds associated with sum rules displaying good OPE convergence are in fact all compatible with the present values obtained from lattice and explicit sum rule determinations.
引用
收藏
页码:178 / 182
页数:5
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