Top FCNC decays in the aligned two-higgs doublet model

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成果类型：

期刊论文

作者：

Abbas, Gauhar;Celis, Alejandro;Li, Xin-Qiang;Lu, Jie;Pich, Antonio

作者机构：

[Abbas, Gauhar; Pich, Antonio] IFIC, Universitat de Valè,ncia, CSIC, Apt. Correus 22085, Valè,ncia, E-46071, Spain

[Lu, Jie] Department of Physics, Shanghai University, Shanghai, 200444, China

[Li, Xin-Qiang] State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100190, China

[Li, Xin-Qiang] Institute of Particle Physics, Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University, Wuhan, Hubei, 430079, China

[Celis, Alejandro] Ludwig-Maximilians-Universitä,t Mü,nchen, Fakultä,t fü,r Physik, Arnold Sommerfeld Center for Theoretical Physics, Mü,nchen, 80333, Germany

语种：

英文

期刊：

Proceedings of Science

ISSN：

1824-8039

年：

2015

卷：

22-29-July-2015

机构署名：

本校为其他机构

院系归属：

物理科学与技术学院

摘要：

We compute the flavour-changing top decays t →ch and t →cV (V =γ, Z) within the framework of the aligned two-Higgs-doublet models. By exploiting constraints from flavour physics and the measured Higgs properties, we investigate the parameter space of the model and its impact on the associated branching ratios. It is observed that the Higgs signal strength in the di-photon channel imposes important restrictions on the t →ch decay rate when the charged scalar of the model is light. We conclude that the rates of these flavour-changing top decays are beyond the expected sensit...

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Top FCNC decays in the aligned two-higgs doublet model

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