English

Type-II seesaw mass models and baryon asymmetry

High Energy Physics - Phenomenology 2008-11-26 v1

Abstract

We compute and also compare the contributions of canonical and noncanonical mass terms towards baryon asymmetry by considering type-II seesaw mass models of neutrinos: Degenerare(3 varieties), Normal hierarchical and Inverted hierarchical(2 varieties). We have shown that for particular choices of parameter 'γ\gamma'(the so-called discriminator) for different neutrino mass models, the baryon asymmetry is largely dominated by canonical term. Within such type-II seesaw scenario, we find normal hierarchical mass model as the most favourable choice of nature.

Keywords

Cite

@article{arxiv.hep-ph/0612143,
  title  = {Type-II seesaw mass models and baryon asymmetry},
  author = {Amal Kr. Sarma and H. Zeen Devi and N. Nimai Singh},
  journal= {arXiv preprint arXiv:hep-ph/0612143},
  year   = {2008}
}

Comments

16 pages, no figure, accepted in Nuclear Physics B