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arXiv · 1711.11333

Radiative Dirac neutrino mass, DAMPE dark matter and leptogenesis

Pei-Hong Gu
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Abstract

We explain the electron-positron excess reported by the DAMPE collaboration recently in a radiative Dirac seesaw model where a dark $U(1)_X$ gauge symmetry can (i) forbid the tree-level Yukawa couplings of three right-handed neutrinos to the standard model lepton and Higgs doublets, (ii) predict the existence of three dark fermions for the gauge anomaly cancellation, (iii) mediate a testable scattering of the lightest dark fermion off the nucleons. Our model can also accommodate a successful leptogenesis to generate the cosmic baryon asymmetry.

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Pei-Hong Gu. 2017-12-04. Radiative Dirac neutrino mass, DAMPE dark matter and leptogenesis. https://arxiv.org/abs/1711.11333

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