Gauge dilution in leptogenesis
arXiv:hep-ph/0406283
Abstract
We discuss leptogenesis in its natural context, i.e. gauge unification, by including in the analysis the effects of the gauge sector associated to the Majorana neutrinos. It results in stricter bounds on the minimal Majorana mass, depending on the gauge bosons mass, but also prevents to deduce any lower limit on the Yukawa couplings since thermal and re-heating scenarios are now indistinguishable.
To appear in the proceedings of XXXIXth Rencontres de Moriond, Electroweak Interactions and Unified Theories, La Thuile, Italy, 21-28 Mar 2004, 6 pages, 2 figures
References in corpus (11)
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
- A lower bound on the right-handed neutrino mass from leptogenesis
- Towards a complete theory of thermal leptogenesis in the SM and MSSM
- Baryogenesis through leptogenesis
- Cosmic Microwave Background, Matter-Antimatter Asymmetry and Neutrino Masses
- The Neutrino Mass Window for Baryogenesis
- Constraints on neutrino masses from leptogenesis models
- Scale of SU(2)_R symmetry breaking and leptogenesis
- Gauge dilution and leptogenesis
- Leptogenesis, neutrino masses and gauge unification
- Decay and Decoupling of heavy Right-handed Majorana Neutrinos in the L-R model