Short distance coefficients and the vanishing of the lepton asymmetry in B→Vl+l-

被引：101

作者：

Burdman, G ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW D | 1998年 / 57卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.57.4254

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive a condition the short distance coefficients governing b-->(s,d)l(+)l(-) transitions must satisfy in order for the forward-backward asymmetry to vanish in the exclusive modes B-->(K*, rho)l(+)l(-). This relation, which is satisfied in the standard model, involves the coefficient entering in b-->s gamma transitions as well as one of the additional Wilson coefficients present in the leptonic modes. We show that the resulting relation is largely free of hadronic uncertainties, thus constituting a reliable test of the standard model in exclusive rare B decays. [S0556-2821(98)00409-3].

引用

页码：4254 / 4257

页数：4

共 47 条

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