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.
Physics Letters B
- Pub Date:
- December 2020
- High Energy Physics - Phenomenology;
- Astrophysics - Cosmology and Nongalactic Astrophysics
- 12 pages, 3 figures: figures replaced, published in Physics Letters B