MASS RATIOS OF THE LIGHT QUARKS

被引：72

作者：

DONOGHUE, JF ^{[1
]}

HOLSTEIN, BR ^{[1
]}

WYLER, D ^{[1
]}

机构：

[1] UNIV ZURICH,INST THEORET PHYS,CH-8001 ZURICH,SWITZERLAND

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.69.3444

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive a consistent set of light quark mass ratios which are compatible with the available constraints of chiral symmetry treated to next-to-leading order. Also required as input is resonance saturation of a set of low-energy amplitudes, in particular for the pion and kaon electromagnetic mass difference. The results (m(d)+m(u))/m(s) = 1/15.5, (m(d)-m(u))/m(s) = 1/29 are modestly different from previous values, and resolve the long-standing puzzle of the eta --> 3pi decay rate.

引用

页码：3444 / 3447

页数：4

共 33 条

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