Radiative dileptonic decays of B mesons

被引：43

作者：

Eilam, G

Lu, CD

Zhang, DX

机构：

[1] Physics Department, Technion - Israel Inst. of Technol.

来源：

PHYSICS LETTERS B | 1997年 / 391卷 / 3-4期

基金：

以色列科学基金会;

关键词：

D O I：

10.1016/S0370-2693(96)01491-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the radiative dileptonic decays B-s(B-d) --> gamma l(+)l(-) within the standard model. Using the constituent quark model, the branching ratios turn out to be around 5 x 10(-9) for B-s --> gamma mu(+)mu(-) and around 6 x 10(-10) for B-d --> gamma mu(+)mu(-) with slightly larger values for B-s(B-d) --> gamma e(+)e(-). The differential rate as a function of the dilepton invariant mass is given. The possibility of using these processes to determine the decay constants of B-s or B-d is discussed.

引用

页码：461 / 464

页数：4

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