论文标题

两层诱导的中微子质量模型,暗物质和LFV流程$ \ ell_i \ to \ell_jγ$,以及$μe\ to e e $ to e e $在隐藏的本地$ u(1)$对称性中

A two-loop induced neutrino mass model, dark matter, and LFV processes $\ell_i \to \ell_j γ$, and $μe \to e e$ in a hidden local $U(1)$ symmetry

论文作者

Nomura, Takaaki, Okada, Hiroshi, Uesaka, Yuichi

论文摘要

我们讨论了一个基于隐藏的$ u(1)_x $量规对称性的模型,在该模型中,通过隐藏扇区和标准模型leptons中粒子之间的相互作用,在双环级别诱导中微子质量。由于中微子的质量被两层循环抑制,因此其尤卡瓦耦合可能很大,并且会影响Lepton风味现象学。我们分析了中微子质量矩阵,违反Lepton风味的过程,电子/MUON $ G-2 $和暗物质歼灭横截面,这些横截面是通过$ U(1)_X $隐藏扇区中标准模型Leptons和颗粒之间的相互作用引起的,并且它们的相互作用在我们的场景中可以很可靠。进行数值分析,我们使用允许的参数显示了这些过程的预期比率,这些参数可以符合中微子数据并满足风味限制。

We discuss a model based on a hidden $U(1)_X$ gauge symmetry in which neutrino mass is induced at two-loop level by effects of interactions among particles in hidden sector and the Standard Model leptons. Since neutrino mass is suppressed by two-loop, its associate Yukawa couplings can be sizable and it would affect lepton flavor phenomenology. We analyze neutrino mass matrix, lepton flavor violating processes, electron/muon $g-2$ and dark matter annihilation cross section which are induced via interactions among Standard Model leptons and particles in $U(1)_X$ hidden sector, and their interactions can be sizable in our scenario. Performing numerical analysis, we show expected ratios for these processes using allowed parameters which can fit the neutrino data and satisfy flavor constraints.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源