Erschienen:
Springer Science and Business Media LLC, 2021
Erschienen in:
Journal of High Energy Physics, 2021 (2021) 7
Sprache:
Englisch
DOI:
10.1007/jhep07(2021)193
ISSN:
1029-8479
Entstehung:
Anmerkungen:
Beschreibung:
Abstract The extension of the Standard Model with two gauge-singlet Majorana fermions can simultaneously explain two beyond-the-Standard-model phenomena: neutrino masses and oscillations, as well as the origin of the matter-antimatter asymmetry in the Universe. The parameters of such a model are constrained by the neutrino oscillation data, direct accelerator searches, big bang nucleosynthesis, and requirement of successful baryogenesis. We show that their combination still leaves an allowed region in the parameter space below the kaon mass. This region can be probed by the further searches of NA62, DUNE, or SHiP experiments.