3 years ago

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

Hiroshi Okada, Peiwen Wu, Takaaki Nomura

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 electron/positron excess recently reported by DArk Matter Particle Explorer (DAMPE). 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.

Publisher URL: http://arxiv.org/abs/1801.04729

DOI: arXiv:1801.04729v1

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