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arXiv · 2507.05957

Right-handed neutrino dark matter consistent with the generation of baryon number asymmetry

Daijiro Suematsu
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Abstract

A right-handed neutrino is a promising candidate for dark matter (DM) which has no interaction with nuclei. Since two right-handed neutrinos explain neutrino oscillation data and baryon number asymmetry through both the seesaw mechanism and leptogenesis based on the out-of-equilibrium decay of the lighter one, the lightest third right-handed neutrino could be free from them and stable to be DM. It suggests a possibility that the right-handed neutrinos could be common key particles for the explanation of three problems in the standard model (SM). We study this possibility by analyzing the structure of a neutrino mass matrix in the scotogenic model for neutrino mass.

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Daijiro Suematsu. 2025-07-08. Right-handed neutrino dark matter consistent with the generation of baryon number asymmetry. https://arxiv.org/abs/2507.05957

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