Decay rate asymmetry in B→Xsγ as a signature of supersymmetry -: art. no. 035004.

被引：17

作者：

Aoki, M

Cho, GC

Oshimo, N

机构：

[1] Ochanomizu Univ, Grad Sch Humanities & Sci, Bunkyo Ku, Tokyo 1128610, Japan

[2] KEK, Theory Grp, Tsukuba, Ibaraki 3050801, Japan

[3] Univ Tokyo, Inst Cosm Ray Res, Tokyo 1888502, Japan

来源：

PHYSICAL REVIEW D | 1999年 / 60卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.60.035004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the supersymmetric standard model, the radiative B-meson decay B --> X(s)gamma could receive a large contribution from a new source of flavor-changing neutral current, which also violates CP invariance. The CP-conjugate processes then may sizably differ in decay width. If a new CP-violating phase is not suppressed, this decay rate asymmetry can be significantly larger than the prediction by the standard model, possibly detectable at B factories. Such a large asymmetry may be implied by the measured branching ratio which is consistent with the standard model. [S0556-2821(99)08313-7].

引用

页数：5

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