Models of neutrino masses and baryogenesis

Pramana

Utpal Sarkar¹ 

[1] Physical Research Laboratory, Ahmedabad 380 009, India$$

关键词: Neutrino masses;    lepton number violation;    baryon asymmetry;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Majorana masses of the neutrino implies lepton number violation and is intimately related to the lepton asymmetry of the universe, which gets related to the baryon asymmetry of the universe in the presence of the sphalerons during the electroweak phase transition. Assuming that the baryon asymmetry of the universe is generated before the electroweak phase transition, it is possible to discriminate different classes of models of neutrino masses. While see-saw mechanism and the triplet Higgs mechanism are preferred, the Zee-type radiative models and theR-parity breaking models requires additional inputs to generate baryon asymmetry of the universe during the electroweak phase transition.

【 授权许可】

Unknown