CP VIOLATION IN K+-]PI+LLBAR DECAYS

被引：27

作者：

AGRAWAL, P ^{[1
]}

NG, JN ^{[1
]}

BELANGER, G ^{[1
]}

GENG, CQ ^{[1
]}

机构：

[1] UNIV MONTREAL,PHYS NUCL LAB,MONTREAL H3C 3J7,QUEBEC,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.67.537

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the possibility of observing CP violation in the process K+ --> pi+ llBAR. We find that, from the point of view or probing the Cabibbo-Kobayashi-Maskawa (CKM) mechanism, the measurement of two-spin correlations of the outgoing leptons is the best recourse. For this purpose, we define a T- violating asymmetry A(CPV), which is the coefficient of the correlation pl.s x sBAR in the differential decay rate. In the standard model we estimate A(CPV) approximately 1.9 x 10(-2) for the muon mode, using the currently allowed CKM parameters and a top-quark mass of 200 GeV/c2.

引用

页码：537 / 540

页数：4

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