Using imprecise tags of CP eigenstates in Bs and the determination of the CKM phase γ

被引：9
|
作者：
Atwood, D [1 ]
Soni, A
机构：
[1] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
[2] Brookhaven Natl Lab, Theory Grp, Upton, NY 11973 USA
来源：
PHYSICS LETTERS B | 2002年 / 533卷 / 1-2期
关键词：
D O I：
10.1016/S0370-2693(02)01493-4
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider the possibility of studying the CP properties of various B-S decays at an electron-positron machine tuned to the Y(5S). Since decay modes of the B-S with definite CP are relatively rare, we suggest that the use of more common modes which are not pure CP eigenstates may allow the determination of the CKM phase gamma. By studying the degree of correlation between different decay modes at a Y(5S) it is possible to determine the degree of affinity of each decay mode to a CP eigenstate. Once this is known, the correlation between a decay mode with a greater affinity to a particular CP eigenstate with a mode such as DS+K- gives a determination of the phase gamma. (C) 2002 Elsevier Science B.V All rights reserved.
引用
收藏
页码：37 / 42
页数：6
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