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 ''(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