Partial μτ textures and leptogenesis

Cherif Hamzaoui, Salah Nasri, and Manuel Toharia
Phys. Rev. D 89, 073019 – Published 22 April 2014

Abstract

Motivated by the recent results from Daya Bay, Reno and Double Chooz Collaborations, we study the consequences of small departures from exact μτ symmetry in the neutrino sector, to accommodate a nonvanishing value of the element Ve3 from the leptonic mixing matrix. Within the seesaw framework, we identify simple patterns of Dirac mass matrices that lead to approximate μτ symmetric neutrino mass matrices, which are consistent with the neutrino oscillation data and lead to nonvanishing mixing angle Ve3 as well as precise predictions for the CP-violating phases. We also show that there is a transparent link between neutrino mixing angles and seesaw parameters, which we further explore within the context of leptogenesis as well as double beta decay phenomenology.

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  • Received 21 November 2013

DOI:https://doi.org/10.1103/PhysRevD.89.073019

© 2014 American Physical Society

Authors & Affiliations

Cherif Hamzaoui1,*, Salah Nasri2,4,†, and Manuel Toharia3,‡

  • 1Groupe de Physique Théorique des Particules, Département des Sciences de la Terre et de L’Atmosphère, Université du Québec à Montréal, Case Postale 8888, Succursale Centre-Ville, Montréal, Québec, Canada H3C 3P8
  • 2Department of Physics, United Arab Emirates University, P.O.Box 17551, Al-Ain, United Arab Emirates
  • 3Department of Physics, Concordia University, 7141 Sherbrooke Street West, Montreal, Quebec, Canada
  • 4Laboratoire de Physique Theorique, ES-SENIA University, DZ-31000 Oran, Algeria

  • *hamzaoui.cherif@uqam.ca
  • snasri@uaeu.ac.ae
  • mtoharia@physics.concordia.ca

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Issue

Vol. 89, Iss. 7 — 1 April 2014

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