Leptogenesis in Realistic SO(10) Models
arXiv:hep-ph/0605088 · doi:10.1016/j.physletb.2007.06.024
Abstract
We study the origin of baryonic matter via leptogenesis in realistic SO(10) models, in particular, in a new lopsided mass matrix model introduced recently by three of the authors. By introducing simple CP-violating phases in the mass matrix of the right-handed neutrinos, the model generates sufficient baryon asymmetry without fine-tuning. We compare this result with other realistic SO(10) models.
19 pages, 2 figures