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Corrections to Tribimaximal Mixing from Nondegenerate Phases
- Source :
- Mod.Phys.Lett.A25:63-78,2010
- Publication Year :
- 2009
-
Abstract
- We propose a seesaw scenario that possible corrections to the tribimaximal pattern of lepton mixing are due to the small phase splitting of the right-handed neutrino mass matrix. we show that the small deviations can be expressed analytically in terms of two splitting parameters($\delta_1$ and $\delta_2$) in the leading order. The solar mixing angle $\theta_{12}$ favors a relatively smaller value compared to zero order value ($35.3^\circ$), and the Dirac type CP phase $\delta$ chooses a nearly maximal one. The two Majorana type CP phases $\rho$ and $\sigma$ turn out to be a nearly linear dependence. Also a normal hierarchy neutrino mass spectrum is favored due to the stability of perturbation calculations.<br />Comment: 19 pages 6 figures, Accepted by Mod. Phy. Lett. A
- Subjects :
- High Energy Physics - Phenomenology
Subjects
Details
- Database :
- arXiv
- Journal :
- Mod.Phys.Lett.A25:63-78,2010
- Publication Type :
- Report
- Accession number :
- edsarx.0911.2670
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1142/S0217732310031476