CP VIOLATION IN THE DECAY K(L)-]PI+PI-E+E-

被引：76

作者：

SEHGAL, LM ^{[1
]}

WANNINGER, M ^{[1
]}

机构：

[1] UNIV HEIDELBERG,INST THEORET PHYS,W-6900 HEIDELBERG,GERMANY

来源：

PHYSICAL REVIEW D | 1992年 / 46卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.46.1035

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have calculated the distribution d-GAMMA/d-phi for the decay K(L) --> pi+ pi- e+ e -, where phi is the angle between the vectors normal to the pi+ pi and e+ e- planes. The result can be written in the form d-GAMMA/d-phi = GAMMA-1cos2-phi + GAMMA-2sin2-phi + GAMMA-3sin-phi-cos-phi, where the last term is CP violating and involves the interference of the M1 component of K(L) --> pi+ pi- gamma with the bremsstrahlung component as well as a possible direct E1 component, Using data on the radiative decays K(L,S) --> pi+ pi-gamma, we estimate an asymmetry in the phi distribution of (3.8 +/- 1.4)%.

引用

页码：1035 / 1041

页数：7

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