# Leptonic CP phases near the μ−τ symmetric limit

Neutrino masses and mixings, as indicated by current neutrino oscillation experiments, suggest that neutrino mass matrix posses an approximated μτexchange symmetry. We explore neutrino parameter space and find that a slight μτ symmetry breaking can only occur for quasidegenerate neutrino mass hierarchy with unequal (non zero) Majorana CP violation phases, which are found to be strongly correlated to the Dirac CP violating phase. Within this framework, robust predictions for the values of Majorana phases are thus obtained.

 Comments: 13 pages, 3 figures Subjects: High Energy Physics – Phenomenology (hep-ph) Cite as: arXiv:1603.02336 [hep-ph] (or arXiv:1603.02336v1 [hep-ph] for this version)