Exploring flavor structure of supersymmetry breaking from rare B decays and the unitarity triangle -: art. no. 035012

被引：19

作者：

Goto, T

Okada, Y

Shimizu, Y

Shindou, T

Tanaka, M

机构：

[1] Osaka Univ, Grad Sch Sci, Dept Phys, Osaka 5600043, Japan

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

[3] Grad Univ Adv Studies, Dept Particle & Nucl Phys, Tsukuba, Ibaraki 3050801, Japan

[4] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

来源：

PHYSICAL REVIEW D | 2004年 / 70卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.70.035012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study effects of supersymmetric particles in various rare B decay processes as well as in the unitarity triangle analysis. We consider three different supersymmetric models, the minimal supergravity, SU(5) SUSY GUT with right-handed neutrinos, and the minimal supersymmetric standard model with U(2) flavor symmetry. In the SU(5) SUSY GUT with right-handed neutrinos, we consider two cases of the mass matrix of the right-handed neutrinos. We calculate direct and mixing-induced CP asymmetries in the b-->sgamma decay and CP asymmetry in B-d-->phiK(S) as well as the B-s-(B) over bar (s) mixing amplitude for the unitarity triangle analysis in these models. We show that large deviations are possible for the SU(5) SUSY GUT and the U(2) model. The patterns and correlations of deviations from the standard model will be useful to discriminate the different SUSY models in future B experiments.

引用

页数：18

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