Isospin violation in ε′ -: art. no. 162001

被引：52

作者：

Cirigliano, V

Pich, A

Ecker, G

Neufeld, H

机构：

[1] Univ Valencia, CSIC, IFIC,Edifici Inst Paterna, Dept Fis Teor, E-46071 Valencia, Spain

[2] Univ Vienna, Inst Theoret Phys, A-1090 Vienna, Austria

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.91.162001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

On the basis of a next-to-leading-order calculation in chiral perturbation theory, the first complete analysis of isospin breaking for direct CP violation in K-0-->2pi decays is performed. We find a destructive interference between three different sources of isospin violation in the CP violation parameter epsilon('). Within the uncertainties of large-N-c estimates for the low-energy constants, the isospin violating correction for epsilon(') is below 15%.

引用

页数：4

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