2022/04/03 by XinXin Qi, Hao Sun, Qi, XinXin +1
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)
paper · pdf · doi:10.48550/arxiv.2204.01086
openalex publication_date 2022/04/03 · openalex created_date 2022/05/05 · openalex updated_date 2026/07/28
We discuss the possibility of light scalar dark matter generated by right-handed neutrino in a Lμ-Lτ model, in which the dark matter ϕdm carries U(1)Lμ-Lτ charge but it is a singlet in the Standard Model. We discuss the case that dark matter production mainly comes from scattering associated with a pair of right-handed neutrinos non-thermally while other related processes are highly suppressed. A feasible parameter space is considered and we found the correct dark matter relic density can be obtained without influencing the result of leptogenesis result. The heavier right-handed neutrino will induce colder dark matter production and the allowed dark matter mass region is [\rm 10-5 GeV,0.1 GeV].