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A radiative neutrino mass model in light of DAMPE excess with hidden gauged U(1) symmetry

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arxiv 1801.04729 v2 pith:VTDGJXGL submitted 2018-01-15 hep-ph astro-ph.HE

A radiative neutrino mass model in light of DAMPE excess with hidden gauged U(1) symmetry

classification hep-ph astro-ph.HE
keywords neutrinodarkmassmatterdampeexcesshiddenleptons
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We propose a one-loop induced neutrino mass model with hidden $U(1)$ gauge symmetry, in which we successfully involve a bosonic dark matter (DM) candidate propagating inside a loop diagram in neutrino mass generation to explain the $e^+e^-$ excess recently reported by the DArk Matter Particle Explorer (DAMPE) experiment. In our scenario dark matter annihilates into four leptons through $Z'$ boson as DM DM $\to Z' Z' (Z' \to \ell^+ \ell^-)$ and $Z'$ decays into leptons via one-loop effect. We then investigate branching ratios of $Z'$ taking into account lepton flavor violations and neutrino oscillation data.

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