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arXiv · 2504.15164

Minimal effective theory for leptogenesis, dark matter, and neutrino masses

Tomas Blazek·Peter Matak·Jan Ramaj·Martina Sabova
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Abstract

We study the phenomenology of choosing a minimal set of effective operators simultaneously generating the dark matter relic density and matter-antimatter asymmetry of the universe. Neutrino masses are obtained in a specific case of baryogenesis via leptogenesis. We find that only two new particles -- a heavy unstable fermion and a light dark matter scalar -- need to be included in addition to the Standard Model particle content.

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Tomas Blazek, Peter Matak, Jan Ramaj, Martina Sabova. 2025-04-21. Minimal effective theory for leptogenesis, dark matter, and neutrino masses. https://doi.org/10.1140/epjc%2Fs10052-025-14543-w

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