Low scale seesaw models for low scale U(1)Lμ-Lτ symmetry
Low scale seesaw models for low scale U(1)Lμ-Lτ symmetry
复制标题
用于低尺度 U(1)Lμ-Lτ 对称性的低尺度跷跷板模型
DOI：
10.1103/physrevd.100.095012
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发表时间：
2019
影响因子：
5
通讯作者：
Shimomura Takashi
中科院分区：
文献类型：
--
作者：
Araki Takeshi;Asai Kento;Sato Joe;Shimomura Takashi
我们在标准模型的低尺度扩展框架内提出了中微子质量和混合的模型。这些模型被设计成自发破裂，使规范玻色子获得MeV级的质量，这是解决长期存在的Muon反常磁矩问题所必需的。通过同时调用线性和逆跷板机制获得了微小的中微子质量，并成功地在活动中微子质量矩阵中实现了两种类型的1-0织构。这两种织构都有利于中微子质量倒置有序，并可在下一代无中微子双β衰变实验中得到验证。我们还表明，一些额外的标量玻色子可以具有MeV尺度的质量，并将对高能宇宙中微子的观测产生重大影响。
We propose models for neutrino masses and mixing in the framework of low scalegauge extension of the standard model. The models are designed to spontaneously breakso that thegauge boson acquires an MeV scale mass, which is required to solve the longstanding problem of muon anomalous magnetic moment. Tiny neutrino masses are obtained by simultaneously invoking the linear and the inverse seesaw mechanism, and we succeed in realizing two types of one-zero textures in the active neutrino mass matrix. Both of the obtained textures favor inverted neutrino mass ordering and are testable in next generation experiments of neutrinoless double beta decay. We also show that some of extra scalar bosons can have MeV scale masses and would have significant impacts on observations of high energy cosmic neutrinos.