Like-Sign Dimuon Asymmetry of B0 Meson and LFV in SU(5) SUSY GUT with S4 Flavor Symmetry

被引：8

作者：

Ishimori, Hajime ^{[1
]}

Kajiyama, Yuji ^{[2
,3
,4
]}

Shimizu, Yusuke ^{[1
]}

Tanimoto, Morimitsu ^{[2
]}

机构：

[1] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

[2] Niigata Univ, Dept Phys, Niigata 9502181, Japan

[3] NICPB, EE-10143 Tallinn, Estonia

[4] Akita Highsch, Akita 0100851, Japan

来源：

PROGRESS OF THEORETICAL PHYSICS | 2011年 / 126卷 / 04期

关键词：

NEUTRINO MASS MATRIX; GRAND UNIFIED THEORIES; FAMILY SYMMETRY; A(4) SYMMETRY; QUARK MASSES; MODEL; VIOLATION; NONCONSERVATION; SUPERGRAVITY; MATTER;

D O I：

10.1143/PTP.126.703

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The like-sign dimuon charge asymmetry of the B meson, which was reported in the Dempty set Collaboration, is studied in the SU(5) SUSY CUT model with S-4 flavor symmetry. Additional CP violating effects from the squark sector are discussed in B-s-(B) over bar (s) mixing process. The predicted like-sign charge asymmetry is in the 2 sigma range of the combined result of Dempty set and CDF measurements. Since the SUSY contributions in the quark sector affect to the lepton sector because of the SU(5) GUT relation, two predictions are given in the leptonic processes: (i) both BR(mu --> e gamma) and the electron EDM are close to the present upper bound, (ii) the decay ratios of tau decays, tau --> mu gamma and tau --> e gamma, are related to each other via the Cabibbo angle lambda(c): BR(tau --> e gamma)/BR(tau --> mu gamma) similar or equal to lambda(2)(c). These are testable at future experiments.

引用

页码：703 / 734

页数：32

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