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.
@article{arxiv.2504.15164,
title = {Minimal effective theory for leptogenesis, dark matter, and neutrino masses},
author = {Tomas Blazek and Peter Matak and Jan Ramaj and Martina Sabova},
journal= {arXiv preprint arXiv:2504.15164},
year = {2025}
}
Comments
extended summary and discussion; references added;