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arXiv · 2409.06541

Cogenesis of visible and dark matter in a scotogenic model

Debajit Bose·Rohan Pramanick·Tirtha Sankar Ray
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Abstract

Within a scotogenic neutrino mass model we explore the cogenesis of matter from the CP violating decay of a heavy $\mathbb{Z}_2$-odd right handed neutrino that simultaneously populates the visible and a multipartite dark sector. The relic density of a sub-GeV scale freeze-in dark matter is generated by the late time decay of the next-to-lightest dark particle dynamically regulated by an interplay with the thermal scattering processes. We show that this model can simultaneously explain visible matter asymmetry and provide a cosmologically viable sub-GeV dark matter while remaining in consonance with the neutrino parameters and flavour observables.

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Debajit Bose, Rohan Pramanick, Tirtha Sankar Ray. 2024-09-10. Cogenesis of visible and dark matter in a scotogenic model. https://doi.org/10.1103/yrst-ltr5

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