arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1812.02449hep-ph
收藏

轻子特异惰性双Higgs偶态模型中轻子反常的简单解释

The simple interpretations of lepton anomalies in the lepton-specific inert two-Higgs-doublet model

Xiao-Fang Han, Tianjun Li, Lei Wang, Yang Zhang

摘要:

μ子和电子反常磁矩($g-2$)存在约$3.7σ$正和$2.4σ$负的偏差。此外,在$τ$衰变中轻子普适性的某些比率几乎与标准模型有$2σ$偏差。在本文中,我们提出了轻子特有的惰性双Higgs二重态模型。在施加所有相关的理论和实验约束后,我们表明,这些轻子异常可以同时解释在许多参数空间与$m_H > 200$ GeV和$m_A~(m_{H^\pm})> 500$ GeV适当的轻子和惰性希格斯之间的汤川耦合。关键是$μ$和$τ$ / $e$的Yukawa耦合符号相反。

英文摘要:

There exist about $3.7σ$ positive and $2.4σ$ negative deviations in the muon and electron anomalous magnetic moments ($g-2$). Also, some ratios for lepton universality in $τ$ decays have almost $2σ$ deviations from the Standard Model. In this paper, we propose a lepton-specific inert two-Higgs-doublet model. After imposing all the relevant theoretical and experimental constraints, we show that these lepton anomalies can be explained simultaneously in many parameter spaces with $m_H > 200$ GeV and $m_A~(m_{H^\pm})> 500$ GeV for appropriate Yukawa couplings between leptons and inert Higgs. The key point is that these Yukawa couplings for $μ$ and $τ$/$e$ have opposite sign.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑