Model for T2K indication with maximal θ23 and trimaximal θ12

S. Morisi, Ketan M. Patel, and E. Peinado
Phys. Rev. D 84, 053002 – Published 6 September 2011

Abstract

Recently T2K experiment gives hint in favor of large reactor angle θ13. Most of the models, with tribimaximal mixing at the leading order, can not reproduce such a large mixing angle since they predict typically corrections for the reactor angle of the order θ13λC2, where λC0.2. In this paper, we discuss the possibility to achieve large θ13 within the T2K region with maximal atmospheric mixing angle, sin2θ23=1/2, and trimaximal solar mixing angle, sin2θ12=1/3, through the deviation from the exact tribimaximal mixing. We derive the structure of neutrino mass matrix that leads to the large θ13 leaving maximal θ23 and trimaximal θ12. It is shown that such a structure of neutrino mass matrix can arise in a model with S4 flavor symmetry.

  • Figure
  • Received 13 July 2011

DOI:https://doi.org/10.1103/PhysRevD.84.053002

© 2011 American Physical Society

Authors & Affiliations

S. Morisi1,*, Ketan M. Patel2,†, and E. Peinado1,‡

  • 1AHEP Group, Institut de Física Corpuscular,C.S.I.C./Universitat de València Edificio Institutos de Paterna, Apartado 22085, E46071 Valencia, Spain
  • 2Physical Research Laboratory, Navarangpura, Ahmedabad-380 009, India

  • *morisi@ific.uv.es
  • kmpatel@prl.res.in
  • epeinado@ific.uv.es

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Vol. 84, Iss. 5 — 1 September 2011

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