Getting at large theta_13 with almost maximal theta_23 from tri-bimaximal mixing

Preprint

2 August 2011

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.1106.5211

Abstract

We introduce a small correction term, \delta M_\nu, in the neutrino sector and examine whether a large \theta_13 and an almost maximal \theta_23 can simultaneously be obtained starting from the tri-bimaximal neutrino mixing. It is found that one can easily gain \theta_13 \simeq 10^\circ, which is favored by the recent T2K experiment, by taking account of the enhancement due to the degeneracy among three neutrino masses. We also find that (\delta M_\nu)_22=(\delta M_\nu)_33 is a key condition for \theta_23 \simeq 45^\circ.

Keywords

BIMAXIMAL MIXING
MAXIMAL THETA_23
LARGE THETA_13
TRI BIMAXIMAL
NEUTRINO
THETA_13
DELTA
SIMEQ

All Related Versions

Version 1, 2011-06-26, ArXiv
Version 2, 2011-07-16, ArXiv
Version 3, 2011-08-02, ArXiv
Published version: Physical Review D, 84 (3).

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