Probing the CKM angle γ with B →π K decays

被引：0
|
作者：
Fleischer, R [1 ]
机构：
[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1999年 / 74卷
关键词：
D O I：
10.1016/S0920-5632(99)00161-9
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
The decays B+/- --> pi(+/-) K and B-d --> pi(-/+) K+/- were observed by the CLEO collaboration last year; they may play an important role to probe the angle gamma of the unitarity triangle of the CKM matrix. After a general parametrization of their decay amplitudes within the Standard Model, strategies to constrain and determine the CKM angle gamma with the help of the corresponding CP-conserving and CP-violating observables are briefly reviewed. The theoretical accuracy of these methods is limited by certain rescattering and electroweak penguin effects. It is emphasized that the rescattering processes can be included in the bounds on gamma by using additional experimental information on B+/- --> K+/- K decays, and steps towards the control of electroweak penguins are pointed out.
引用
收藏
页码：197 / 200
页数：4
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