DIRECT CP VIOLATION IN K-]3-PI DECAY - ADDENDUM ON CP-VIOLATING EFFECTS IN CHARGED-K DECAY

被引：9

作者：

CHENG, HY

机构：

[1] Institute of Physics, Academia Sinica, Taipei

来源：

PHYSICAL REVIEW D | 1991年 / 44卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.44.919

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Contrary to a recent claim that CP asymmetry in the slope parameter of K+/- --> pi+/-pi+pi- is as large as of order 10(-3), our calculation shows that, within the framework of the 1/N(c) approach, its magnitude is not likely to exceed the level of 10(-5) even after including the effects of Z0 penguin diagrams, isospin breaking, and higher-order weak chiral Lagrangians. Our result suggests that it is a formidable task to observe direct CP violation in charged K --> 3-pi-decay.

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页码：919 / 922

页数：4

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