It is pointed out that lepton asymmetry can be generated through CP-preserving inflaton decay into Higgs boson when the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) matrix has a proper CP phase. The leptons produced during thermalization process undergo flavor oscillations where CP violation takes place. The llHH terms relevant to the active neutrino masses give lepton number violations. Our scenario can be tested from the ground-based neutrino experiment.
|ジャーナル||Proceedings of Science|
|出版ステータス||Published - 2019|
|イベント||39th International Conference on High Energy Physics, ICHEP 2018 - Seoul, Korea, Republic of|
継続期間: 2018 7月 4 → 2018 7月 11
ASJC Scopus subject areas