(B)over-bar → Xsγ rate and CP asymmetry within the aligned two-Higgs-doublet model

被引：40

作者：

Jung, Martin ^{[1
]}

Pich, Antonio ^{[1
]}

Tuzon, Paula ^{[1
]}

机构：

[1] Univ Valencia, CSIC, IFIC, Dept Fis Teor, E-46071 Valencia, Spain

来源：

PHYSICAL REVIEW D | 2011年 / 83卷 / 07期

关键词：

MINIMAL FLAVOR VIOLATION; NEUTRAL HIGGS BOSONS; QCD CORRECTIONS; PHENOMENOLOGY; CONSTRAINTS; SCALE; DECAY;

D O I：

10.1103/PhysRevD.83.074011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the two-Higgs-doublet model the alignment of the Yukawa matrices in flavor space guarantees the absence of flavor-changing neutral currents at tree level, while introducing new sources for CP violation parametrized in a very economical way [Antonio Pich and Paula Tuzon, Phys. Rev. D 80, 091702 (2009)]. This implies a potentially large influence in a number of processes, b -> s gamma being a prominent example where rather high experimental and theoretical precision meet. We analyze the CP rate asymmetry in this inclusive decay and determine the resulting constraints on the model parameters. We demonstrate the compatibility with previously obtained limits [Martin Jung, Antonio Pich, and Paula Tuzon, J. High Energy Phys. 11 (2010) 003]. Moreover, we extend the phenomenological analysis of the branching ratio, and examine the influence of resulting correlations on the like-sign dimuon charge asymmetry in B decays.

引用

页数：8

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