论文标题

Lepton数字违反了具有标准模型量规场的操作员:对三层中微子质量的调查及其与暗物质的链接

Lepton number violating operators with standard model gauge fields: A survey of neutrino masses from 3-loops and their link to dark matter

论文作者

Gustafsson, Michael, No, Jose Miguel, Rivera, Maximiliano A.

论文摘要

我们研究了中微子质量生成的场景,在这些情况下,Lepton数字仅将新物理伴侣违反了标准模型(SM)右手带电的Lepton手性。违反有效运算符的最低级Lepton数字描述了此框架是一个唯一的尺寸九操作员,涉及SM仪表字段,$ \ MATHCAL {O} _9 $。我们发现,有两种可能的新物理场景类别引起了此$ \ MATHCAL {O} _9 $操作员。在这些情况下,中微子肿块是通过暗物质相互作用辐射诱导的,将暗物质与与电子量表相比的中微子质量小的自然解释。我们讨论了每个类别中不同中微子质量模型中的现象学和现有约束。特别是,我们分析了中微子混合与中微子双$β$ -DECAY之间的重要相互作用,以预测特征性特征和分散某些情况。

We investigate neutrino mass generation scenarios where the lepton number breaking new physics couples only to the Standard Model (SM) right-handed charged lepton chirality. The lowest-order lepton number violating effective operator which describes this framework is a unique dimension nine operator involving SM gauge fields, $\mathcal{O}_9$. We find that there are two possible classes of new physics scenarios giving rise to this $\mathcal{O}_9$ operator. In these scenarios neutrino masses are induced radiatively via dark matter interactions, linking the dark matter to a natural explanation for the smallness of neutrino masses compared to the electroweak scale. We discuss the phenomenology and existing constraints in the different neutrino mass models within each class. In particular, we analyze the important interplay between neutrino mixing and neutrinoless double $β$-decay in order to predict characteristic signatures and disfavour certain scenarios.

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