Spontaneous thermal Leptogenesis via Majoron oscillation
作者： Masahiro Ibe , Kunio Kaneta
DOI: 10.1103/PHYSREVD.92.035019
关键词:
摘要: A novel model of spontaneous Leptogenesis is investigated, where it takes place in the thermal equilibrium due to a background Nambu-Goldstone field motion. In particular, we identify be Majoron which associates with breakdown (discrete) $B-L$ symmetry. this scenario sufficient lepton number asymmetry generated primordial bath without having $CP$-violating out-of-equilibrium decay heavy right-handed Majorana neutrinos. To obtain observed baryon asymmetry, neutrino masses are predicted certain ranges, can translated into effective mass neutrinoless double beta decay.
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