English

The solar LMA neutrino oscillation solution in the Zee model

High Energy Physics - Phenomenology 2009-11-07 v2

Abstract

We examine the neutrino mass matrix in the version of Zee model where both Higgs doublets couple to the leptons. We show that in this case one can accommodate the large mixing angle (LMA) MSW solution of the solar neutrino problem, while avoiding maximal solar mixing and conflicts with constraints on lepton family number-violating interactions. In the simplified scenario we consider, we have the neutrino mass spectrum characterized by m1m2Δmatm2/sin2θm_1 \simeq m_2 \simeq \sqrt{\Delta m^2_\mathrm{atm}}/\sin 2\theta and m3/m1cos2θm_3/m_1 \simeq \cos 2\theta, where θ\theta is the solar mixing angle.

Keywords

Cite

@article{arxiv.hep-ph/0104035,
  title  = {The solar LMA neutrino oscillation solution in the Zee model},
  author = {K. R. S. Balaji and W. Grimus and T. Schwetz},
  journal= {arXiv preprint arXiv:hep-ph/0104035},
  year   = {2009}
}

Comments

13 pages, LaTeX, no figures; misprints in Eq. (39) corrected