Radiative dark matter and neutrino masses from an alternative $U(1{)}_{B-L}$ gauge symmetry

Abstract

We propose a model where the masses of the active neutrinos and a dark matter candidate are generated radiatively through the $U(1{)}_{B-L}$ gauge symmetry breaking. It is realized by a non-universal $U(1{)}_{B-L}$ charge assignment on the right handed neutrinos and one of them becomes DM. The dark matter mass becomes generally small compared with the typical mass of the Weak Interacting Massive Particles and we have milder constraints on the dark matter. We consider the case where the dark matter is produced through the freeze-in mechanism and show that the observed dark matter relic density can be realized consistently with the current experimental constraints on the neutrino masses and the lepton flavor structure.

arXiv comment13 pages, 1 figure: references added, parameter set changed

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Cited by in corpus (4)

• Revisiting sterile neutrino dark matter in gauged $U(1{)}_{B-L}$ model
• Thermally corrected masses and freeze-in dark matter: a case study
• Interpreting dark matter solution for $B-L$ gauge symmetry
• Freeze-in sterile neutrino dark matter in a feebly gauged $B-L$ model