Predicting neutrino oscillations with “bi-large” lepton mixing matrices

Chen, Peng (College of Information Science and Engineering, Ocean University of China, Qingdao, 266100, China) ; Ding, Gui-Jun  (Interdisciplinary Center for Theoretical Study, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China) ; Srivastava, Rahul  (AHEP Group, Institut de Física Corpuscular – CSIC/Universitat de València, Parc Científic de Paterna, C/Catedrático José Beltrán, 2, Paterna (Valencia), E-46980, Spain) ; Valle, José W.F.  (AHEP Group, Institut de Física Corpuscular – CSIC/Universitat de València, Parc Científic de Paterna, C/Catedrático José Beltrán, 2, Paterna (Valencia), E-46980, Spain)

11 April 2019

Abstract: We propose two schemes for the lepton mixing matrix U=Ul†Uν , where U=Ul refers to the charged sector, and Uν denotes the neutrino diagonalization matrix. We assume Uν to be CP conserving and its three angles to be connected with the Cabibbo angle in a simple manner. CP violation arises solely from the Ul , assumed to have the CKM form, Ul≃VCKM , suggested by unification. Oscillation parameters depend on a single parameter, leading to narrow ranges for the “solar” and “accelerator” angles θ12 and θ23 , as well as for the CP phase, predicted as δCP∼±1.3π .


Published in: Physics letters B 792 (2019) 461-464
Published by: Elsevier
DOI: 10.1016/j.physletb.2019.04.022
License: CC-BY-3.0



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