Leptogenesis in Supersymmetric Hybrid Inflation
摘要
The nonsupersymmetric as well as the supersymmetric hybrid inflationary model is reviewed. The scenario of baryogenesis via a primordial leptogenesis is discussed and the role of the nonperturbative electroweak sphaleron effects is analyzed. A supersymmetric model based on a left-right symmetric gauge group, which `naturally' leads to hybrid inflation, is presented. The mu problem is solved, in this model, and the baryon asymmetry of the universe is produced through leptogenesis. For masses of nu_mu, nu_tau from the small angle MSW resolution of the solar neutrino problem and SuperKamiokande, maximal nu_mu-nu_tau mixing can be achieved. The required values of the relevant parameters are, however, quite small.
引用
@article{arxiv.hep-ph/9904428,
title = {Leptogenesis in Supersymmetric Hybrid Inflation},
author = {G. Lazarides},
journal= {arXiv preprint arXiv:hep-ph/9904428},
year = {2008}
}
备注
21 pages, 2 figures, Revtex, to appear in Springer Tracts in Modern Physics: Symmetries in Physics and Conservation Laws