Weakly-induced strong CP violation

被引：11
|
作者：
Gerard, Jean-Marc [1 ]
Mertens, Philippe [1 ]
机构：
[1] Catholic Univ Louvain, Ctr Cosmol Particle Phys & Phenomenol CP3, B-1348 Louvain, Belgium
来源：
PHYSICS LETTERS B | 2012年 / 716卷 / 02期
关键词：
CP violation; Strong theta; Chiral dynamics; Large N-c; ELECTRIC-DIPOLE MOMENT; LARGE N-C; QUANTUM CHROMODYNAMICS; DELTA-I=1/2 RULE; KAON DECAYS; MODEL; BREAKING;
D O I：
10.1016/j.physletb.2012.08.036
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Weak interaction contributions to the strong theta parameter are revisited in the frame of a large-N-c Chiral Perturbation Theory. Focusing on the hadronic eta((')) -> pi pi amplitudes, we express these second-order corrections in terms of the CP-violating parameter in K -> pi pi decays to obtain Delta(w)theta approximate to 10(-17) at O(G(F)(2)epsilon'). (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：316 / 321
页数：6
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