{ "id": "hep-ph/9904428", "version": "v2", "published": "1999-04-22T15:54:21.000Z", "updated": "1999-04-23T14:37:29.000Z", "title": "Leptogenesis in Supersymmetric Hybrid Inflation", "authors": [ "G. Lazarides" ], "comment": "21 pages, 2 figures, Revtex, to appear in Springer Tracts in Modern Physics: Symmetries in Physics and Conservation Laws", "journal": "SpringerTractsMod.Phys.163:227-245,2000", "categories": [ "hep-ph" ], "abstract": "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.", "revisions": [ { "version": "v2", "updated": "1999-04-23T14:37:29.000Z" } ], "analyses": { "keywords": [ "leptogenesis", "supersymmetric hybrid inflationary model", "small angle msw resolution", "left-right symmetric gauge group", "nonperturbative electroweak sphaleron effects" ], "tags": [ "journal article" ], "note": { "typesetting": "RevTeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable", "inspire": 498706 } } }