论文标题
中微子的混合和瘦素发生与模块化$ S_3 $对称性在III类Seesaw的框架中
Neutrino mixing and Leptogenesis with modular $S_3$ symmetry in the framework of type III seesaw
论文作者
论文摘要
离散的对称性是解释中微子现象学的首选，我们选择了最简单的$ S_3 $组，并探索其模块化形式对中微子质量和混合的含义。在这种对称性下，Yukawa耦合的非平凡转换，通过减少多个标量场的需求，使模型在现象学上有趣。这种对称性在频率较低的III型SEESAW机制的框架内对中微子质量基质施加了特定的风味结构，并有助于探索与当前观察结果一致的中微子混合。除此之外，我们还解释了瘦生成的首选方案，以解释宇宙的重子不对称，通过在TEV量表上产生沉重的费米昂三重态的衰减中的轻子不对称。
Discrete symmetries being preferred to explain the neutrino phenomenology, we chose the simplest $S_3$ group and explore the implication of its modular form on neutrino masses and mixing. Non-trivial transformations of Yukawa couplings under this symmetry, make the model phenomenologically interesting by reducing the requirement of multiple scalar fields. This symmetry imposes a specific flavor structure to the neutrino mass matrix within the framework of less frequented type III seesaw mechanism and helps to explore the neutrino mixing consistent with the current observation. Apart, we also explain the preferred scenario of leptogenesis to explain the baryon asymmetry of the universe by generating the lepton asymmetry from the decay of heavy fermion triplet at TeV scale.
