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Advances in High Energy Physics
Volume 2016, Article ID 9496758, 11 pages
Research Article

Octant Degeneracy and Quadrant of Leptonic CPV Phase at Long Baseline Experiments and Baryogenesis

1Department of Physics, Gauhati University, Guwahati 781014, India
2Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211019, India

Received 30 May 2016; Revised 22 July 2016; Accepted 8 August 2016

Academic Editor: Abhijit Samanta

Copyright © 2016 Kalpana Bora et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP3.


In a recent work by us, we have studied how CP violation discovery potential can be improved at long baseline neutrino experiments (LBNE/DUNE), by combining with its ND (near detector) and reactor experiments. In this work, we discuss how this study can be further analysed to resolve entanglement of the quadrant of leptonic CPV phase and octant of atmospheric mixing angle , at LBNEs. The study is done for both NH (normal hierarchy) and IH (inverted hierarchy), HO (higher octant), and LO (lower octant). We show how baryogenesis can enhance the effect of resolving this entanglement and how possible values of the leptonic CP violating phase can be predicted in this context. With respect to the latest global fit data of neutrino mixing angles, we predict the values of for different cases. In this context we present favoured values of ( range at ≥2σ) constrained by the latest updated BAU range and also confront our predictions of with an up-to-date global analysis of neutrino oscillation data. We find that some region of the favoured parameter space lies within the best fit values around . A detailed analytic and numerical study of baryogenesis through leptogenesis is performed in this framework within the nonsupersymmetric SO models.