一个亲中性2HDM作为UV完备化的反跷跷板机制
A Neutrinophilic 2HDM as a UV Completion for the Inverse Seesaw Mechanism
摘要：
在亲中微子双希格斯模型中，狄拉克中微子的质量是通过对称性禁止右手中微子的马约拉纳质量项而得到的。我们研究了这种模型的一种变体，其中对称性被认为是局部U（1），自然导致了典型的拉格朗日逆跷跷板情景。一个新的规范玻色子和一个扩展的标量扇区的存在导致了丰富的现象学，包括修改Z，希格斯和K介子衰变以及电弱精度参数，和一个赝标量与轻子数的破缺。
英文摘要：
In Neutrinophilic Two Higgs Doublet Models, Dirac neutrino masses are obtained by forbidding a Majorana mass term for the right-handed neutrinos via a symmetry. We study a variation of such models in which that symmetry is taken to be a local U(1), leading naturally to the typical Lagrangian of the inverse seesaw scenario. The presence of a new gauge boson and of an extended scalar sector result in a rich phenomenology, including modifications to Z, Higgs and kaon decays as well as to electroweak precision parameters, and a pseudoscalar associated to the breaking of lepton number.
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