Type-II seesaw mass models and baryon asymmetry
arXiv:hep-ph/0612143 · doi:10.1016/j.nuclphysb.2006.12.002
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.
16 pages, no figure, accepted in Nuclear Physics B
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