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arXiv 2201.03779hep-ph
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暗生模型中轻子味破坏$Z$和Higgs衰变

Lepton flavor violating $Z$ and Higgs decays in the scotogenic model

Raghavendra Srikanth Hundi

摘要:

本文在暗生模型中研究了$Z$规范玻色子和Higgs玻色子的轻子味破缺衰变。我们计算了该模型中衰变$Z\to\ell_α\ell_β$和$H\to\ell_α\ell_β$的分支比。这里,$\ell_α$和$\ell_β$是不同的带电轻子场。通过对暗生模型中中微子振荡观测值的拟合,我们发现$Z$和$H$的LFV衰变分支比可以分别达到$\sim10^{-8}$和$\sim10^{-3}$那样大。然而,在满足由于未观察到$\ell_α\to\ell_βγ$衰变的约束之后,发现上述分支比结果被抑制了$\sim10^{-7}$的因子。

英文摘要:

In this work, we have studied lepton flavor violating (LFV) decays of $Z$ gauge boson and Higgs boson ($H$) in the scotogenic model. We have computed branching ratios for the decays $Z\to\ell_α\ell_β$ and $H\to\ell_α\ell_β$ in this model. Here, $\ell_α$ and $\ell_β$ are different charged lepton fields. After fitting to the neutrino oscillation observables in the scotogenic model, we have found that the branching ratios for the LFV decays of $Z$ and $H$ can be as large as $\sim10^{-8}$ and $\sim10^{-3}$ respectively. However, after satisfying the constraints due to non-observation of $\ell_α\to\ell_βγ$ decays, the above mentioned branching ratio results are found to be suppressed by a factor of $\sim10^{-7}$.

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。

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