"Hidden" O(2) and SO(2) Symmetry in Lepton Mixing

Details "Hidden" O(2) and SO(2) Symmetry in Lepton Mixing "Hidden" O(2) and SO(2) Symmetry in Lepton Mixing

2011-12-15

arxiv.org/abs/1112.3628v2

JHEP 1202:094,2012

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, matches published version

Scientific paper

10.1007/JHEP02(2012)094

To generate the minimal neutrino Majorana mass matrix that has a free solar mixing angle and Delta m_sol^2 = 0 it suffices to implement an O(2) symmetry, or one of its subgroups SO(2), Z_N (N>2), or D_N (N>2). This O(2) generalizes the hidden Z_2^s of lepton mixing and leads in addition automatically to mu-tau symmetry. Flavor-democratic perturbations, as expected e.g. from the Planck scale, then result in tri-bimaximal mixing. We present a minimal model with three Higgs doublets implementing a type-I seesaw mechanism with a spontaneous breakdown of the symmetry, leading to large theta_13 and small Delta m_sol^2 = 0 due to the particular decomposition of the perturbations under mu-tau symmetry.

Affiliated with

Also associated with

No associations

Rating

"Hidden" O(2) and SO(2) Symmetry in Lepton Mixing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with "Hidden" O(2) and SO(2) Symmetry in Lepton Mixing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and "Hidden" O(2) and SO(2) Symmetry in Lepton Mixing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-135782