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

nuclear physics b

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