A radiatively induced neutrino mass model with hidden local $U(1)$ and LFV processes $\ell_i \to \ell_j \gamma$, $\mu \to e Z'$ and $\mu e \to e e$

Hiroshi Okada; Takaaki Nomura; Yuichi Uesaka

A radiatively induced neutrino mass model with hidden local U(1) and LFV processes ell_i to ell_j γ, μ to e Z' and μ e to e e

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arxiv 2005.05527 v2 pith:KCWYG7UK submitted 2020-05-12 hep-ph

A radiatively induced neutrino mass model with hidden local U(1) and LFV processes ell_i to ell_j γ, μ to e Z' and μ e to e e

Takaaki Nomura , Hiroshi Okada , Yuichi Uesaka This is my paper

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keywords neutrinomasshiddenmodelinducedprocessesinteractionsleptons

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We investigate a model based on hidden $U(1)_X$ gauge symmetry in which neutrino mass is induced at one-loop level by effects of interactions among particles in hidden sector and the Standard Model leptons. Neutrino mass generation is also associated with $U(1)_X$ breaking scale which is taken to be low to suppress neutrino mass. Then we formulate neutrino mass matrix, lepton flavor violating processes and muon $g-2$ which are induced via interactions among Standard Model leptons and particles in $U(1)_X$ hidden sector that can be sizable in our scenario. Carrying our numerical analysis, we show expected ratios for these processes when generated neutrino mass matrix can fit the neutrino data.

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