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arXiv 2102.09898hep-ph
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中微子质量起源的单电荷标量单态

The Singly-Charged Scalar Singlet as the Origin of Neutrino Masses

Tobias Felkl, Juan Herrero-Garcia, Michael A. Schmidt

摘要:

我们考虑通过单电荷标量单线态产生中微子质量。在一般的假设下,我们确定两个不同的结构的中微子质量矩阵。这产生了一个约束的反对称汤川耦合的单电荷标量单线态两个左手轻子二重态,无论如何打破轻子数守恒实现。该约束不利于汤川耦合之间的大层次结构。我们研究了轻子味普适性的现象学,$W$ -玻色子质量的测量,在带电轻子部门的味违反和单电荷标量单衰变的影响。我们还讨论了参数空间,可以解决Cabibbo角异常。

英文摘要:

We consider the generation of neutrino masses via a singly-charged scalar singlet. Under general assumptions we identify two distinct structures for the neutrino mass matrix. This yields a constraint for the antisymmetric Yukawa coupling of the singly-charged scalar singlet to two left-handed lepton doublets, irrespective of how the breaking of lepton-number conservation is achieved. The constraint disfavours large hierarchies among the Yukawa couplings. We study the implications for the phenomenology of lepton-flavour universality, measurements of the $W$-boson mass, flavour violation in the charged-lepton sector and decays of the singly-charged scalar singlet. We also discuss the parameter space that can address the Cabibbo Angle Anomaly.

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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