A Shift from Democratic to Tri-bimaximal Neutrino Mixing with Relatively Large $\theta_{13}$ - INSPIRE

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A Shift from Democratic to Tri-bimaximal Neutrino Mixing with Relatively Large $\theta_{13}$

Zhi-zhong Xing
(
- Beijing, Inst. High Energy Phys.
)

Nov, 2010

11 pages

Published in:

Phys.Lett.B 696 (2011) 232-236

e-Print:

1011.2954 [hep-ph]

DOI:

10.1016/j.physletb.2010.12.031

View in:

ADS Abstract Service

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Abstract: (Elsevier)

Recent neutrino oscillation data hint that the smallest neutrino mixing angle θ13 is possible to lie in the range 5°≲θ13≲12° . We show that reasonable perturbations to the democratic mixing pattern, which is geometrically related to the tri-bimaximal mixing pattern through an equal shift θ⁎≃9.7° of two large mixing angles, can naturally produce a nearly tri-bimaximal neutrino mixing matrix V with sufficiently large θ13 . Two especially simple but viable scenarios of V are proposed and their phenomenological consequences are discussed.

14.60.Pq
13.10.+q
25.30.Pt
Neutrino masses
Democratic mixing
Tri-bimaximal mixing
neutrino: mixing
neutrino: oscillation
perturbation: effect
lepton: mass

References(41)

Figures(1)

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