Signal from sterile neutrino dark matter in extra $U(1)$ model at direct detection experiment

Abstract

We examine the possibility that direct dark matter detection experiments find decay products from sterile neutrino dark mater in $U(1{)}_{B-L}$ and $U(1{)}_R$ models. This is possible if the sterile neutrino interacts with a light gauge boson and decays into a neutrino and the light gauge boson with a certain lifetime. This decay produces energetic neutrinos scattering off nuclei with a large enough recoil energy in direct dark matter detection experiments. We stress that direct dark matter detection experiments can explore not only WIMP but also sterile neutrino dark matter.

arXiv comment12 pages, 3 figures: figures replaced, published in Physics Letters B

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• Sterile neutrino dark matter in a U(1) extension of the standard model
• Neutrino and dark matter in a gauged $U(1{)}_R$ symmetry
• Sterile neutrino dark matter with dipole interaction
• Revisiting sterile neutrino dark matter in gauged $U(1{)}_{B-L}$ model
• Dirac dark matter, dark radiation, and the type-II seesaw mechanism in alternative $U(1{)}_X$ standard model
• Sterile neutrino dark matter: relativistic freeze-out
• Bounds on sterile neutrino lifetime and mixing angle with active neutrinos by global 21 cm signal
• Frozen-in fermionic singlet dark matter in non-standard cosmology with a decaying fluid
• Generation of neutrino dark matter, baryon asymmetry, and radiation after quintessential inflation
• Freeze-In Dark Matter within the Seesaw mechanism
• Freeze-in sterile neutrino dark matter in a feebly gauged $B-L$ model
• Cosmic Birefringence as a probe of dark matter nature: Sterile neutrino and dipolar dark matter