The CP-violating asymmetry in KL → π+π-e+e-

被引：6
|
作者：
Ecker, G
Pichl, H
机构：
[1] Univ Vienna, Inst Theoret Phys, A-1090 Vienna, Austria
[2] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
来源：
PHYSICS LETTERS B | 2001年 / 507卷 / 1-4期
关键词：
D O I：
10.1016/S0370-2693(01)00373-2
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We update the theoretical analysis of the CP-violating asymmetry in the decay K-L --> pi (+)pi (-)e(+)e(-), relying on chiral perturbation theory and on the most recent phenomenological information. With the experimentally determined magnetic amplitude and branching ratio as input, the asymmetry can be calculated with good accuracy. The theoretical interpretation of the sign of the asymmetry is discussed. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码：193 / 199
页数：7
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