• Models of neutrino masses and baryogenesis

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      https://www.ias.ac.in/article/fulltext/pram/054/01/0101-0118

    • Keywords

       

      Neutrino masses; lepton number violation; baryon asymmetry

    • Abstract

       

      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 the R-parity breaking models requires additional inputs to generate baryon asymmetry of the universe during the electroweak phase transition.

    • Author Affiliations

       

      Utpal Sarkar1

      1. Physical Research Laboratory, Ahmedabad - 380 009, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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