tau polarization asymmetry in B->X(s)tau(+)tau(-)

被引：114

作者：

Hewett, JL

机构：

[1] Stanford Linear Accelerator Center, Stanford University, Stanford, CA

来源：

PHYSICAL REVIEW D | 1996年 / 53卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.53.4964

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Rare B decays provide an opportunity to probe for new physics beyond the standard model, In this paper, we propose to measure the tau polarization in the inclusive decay B --> X(s) tau(+) tau(-) and discuss how it can be used, in conjunction with other observables, to completely determine the parameters of the flavor-changing low-energy effective Hamiltonian. Both the standard model and several new physics scenarios are examined. This process has a large enough branching fraction, similar to few x 10(-7), such that sufficient statistics will eventually be provided by the B factories currently under construction.

引用

页码：4964 / 4969

页数：6

共 55 条

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