| Full text | |
| Author(s): |
Mohapatra, R. N.
;
Nishi, C. C.
Total Authors: 2
|
| Document type: | Journal article |
| Source: | Journal of High Energy Physics; v. N/A, n. 8, p. 33-pg., 2015-08-18. |
| Abstract | |
We discuss gauge models incorporating mu-tau flavored CP symmetry (called CP mu tau in the text) in combination with L-mu - L-tau invariance to understand neutrino mixings and discuss their phenomenological implications. We show that viable leptogenesis in this setting requires that the lightest right-handed neutrino mass must be between 10(9)-10(12) GeV and for effective two hierarchical right-handed neutrinos, leptogenesis takes place only in a narrower range of 5 x 10(10)-10(12) GeV. A multi-Higgs realization of this idea implies that there must be a pseudoscalar Higgs boson with mass less than 300 GeV. Generically, the vev alignment problem can be naturally avoided in our setting. (AU) | |
| FAPESP's process: | 13/26371-5 - Flavor symmetries at the electroweak scale and their consequences |
| Grantee: | Celso Chikahiro Nishi |
| Support Opportunities: | Scholarships abroad - Research |
| FAPESP's process: | 13/22079-8 - Physics of particles and fields: standard model and its extensions |
| Grantee: | Adriano Antonio Natale |
| Support Opportunities: | Research Projects - Thematic Grants |