Dark Matter, Muon $g-2$, Electric Dipole Moments and $Z o \ell_i^+ \ell_j^-$ in a One-Loop Induced Neutrino Model

摘要

We study a simple one-loop induced neutrino mass model that contains bothbosonic and fermionic dark matter candidates and has the capacity to explainthe muon anomalous magnetic moment anomaly. We perform a comprehensive analysisby taking into account the relevant constraints of charged lepton flavorviolation, electric dipole moments, and neutrino oscillation data. We examinethe constraints from lepton flavor-changing $Z$ boson decays at one-loop level,particularly when the involved couplings contribute to the muon $g-2$. It isfound that $\text{BR}(Z\to \mu\tau)\simeq (10^{-7}$ - $10^{-6})$ while$\text{BR}(\tau\to\mu\gamma)\lesssim 10^{-11}$ in the fermionic dark matterscenario. The former can be probed by the precision measurement of the $Z$boson at future lepton colliders.