2024-03-28T22:33:55Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/806512022-11-17T02:08:08Zhdl_2115_20066hdl_2115_154Signal from sterile neutrino dark matter in extra U(1) model at direct detection experimentSeto, OsamuShimomura, Takashi420We 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. (C) 2020 The Author(s). Published by Elsevier B.V.ElsevierJournal Articlehttp://hdl.handle.net/2115/806510370-2693Physics Letters B8111358802020-12-10enginfo:doi/10.1016/j.physletb.2020.135880none