Construction of neutrino models with non-vanishing [[theta].sub.13] and leptogenesis

We construct the neutrino mass models with non-vanishing [[theta].sub.13] and estimate the baryon asymmetry of the universe and subsequently derive the constraints on the inflaton mass and the reheating temperature after inflation. The great discovery of this decade, the detection of Higgs boson of mass 126 GeV and nonzero [[theta].sub.13], makes leptogenesis all the more exciting. Besides, the neutrino mass model is compatible with inflaton mass [10.sup.10] -[10.sup.13] GeV corresponding to reheating temperature [T.sub.R] ~ [10.sup.5]-[10.sup.7] GeV to overcome the gravitino constraint in supersymmetry and big bang nucleosynthesis. When Daya Bay data [[theta].sub.13] [approximately equal to] 9[degrees] is included in the model, [tau] predominates over e and [mu]. contributions, which are indeed a good sign. It is shown that neutrino mass models for a successful leptogenesis can be accommodated for a variety of inflationary models with a rather wide ranging inflationary scale. Key words: neutrino mass models, leptogenesis, inflaton mass, reheating temperature. Nous construisons des modeles de neutrinos massifs pour une valeur non nulle de [[theta].sub.13] et estimons l'asymetrie baryonique de l'univers, pour subsequemment deriver les contraintes sur la masse de l'inflaton et la temperature de rechauffement apres l'inflation. Deux grandes decouvertes de la decennie, la detection du boson de Higgs a 126 GeV et la valeur non nulle de [[theta].sub.13], rendent la leptogenese encore plus interessante. De plus, le modele du neutrino massif est compatible avec une masse d'inflaton de [10.sup.10] - [10.sup.13] GeV, ce qui correspond a une temperature de rechauffement de [T.sub.R] ~ [10.sup.5] - [10.sup.7] GeV pour surmonter la contrainte du gravitino en supersymetrie et la nucleosynthese du big bang. Lorsque la donnee de la baie de Daya, [[theta].sub.13] [approximately equal to] 9[degrees], est introduite dans le modele, la predominance de la contribution de [tau] sur celles de e et [mu] est en effet un bon signe. Nous montrons que les modeles de neutrinos massifs dans une leptogenese couronnee de succes peuvent s'adapter a une variete de modeles inflationnistes avec un large domaine d'echelle inflationniste. [Traduit par la Redaction] Mots-cles: modeles de neutrinos massifs, leptogenese, masse de l'inflaton, temperature de rechauffement. PACS Nos.: 12.60.-i, 14.60.Pq, 14.60.St, 98.80.Bp.
1. Introduction The last unknown reactor mixing angle, non-vanishing [[theta].sub.13] (particularly given by Daya Bay [1] and RENO [2] as reported at the Neutrino 2012 Conference, Kyoto, Japan [3]), has [...]