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Title: Soft A 4→Z 3 symmetry breaking and cobimaximal neutrino mixing

In this study, I propose a model of radiative charged-lepton and neutrino masses with A 4 symmetry. The soft breaking of A 4 to Z 3 lepton triality is accomplished by dimension-three terms. The breaking of Z 3 by dimension-two terms allows cobimaximal neutrino mixing (θ 13 ≠ 0, θ 23 = π/4, δ cp=π/2) to be realized with only very small finite calculable deviations from the residual Z 3 lepton triality. This construction solves a long-standing technical problem inherent in renormalizable A 4 models since their inception.
Authors:
 [1]
  1. Univ. of California, Riverside, CA (United States). Dept. of Physics and Astronomy; Hong Kong Univ. of Science and Technology, Hong Kong (China). HKUST Jockey Club Institute for Advanced Study
Publication Date:
Grant/Contract Number:
SC0008541
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 755; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Univ. of California, Riverside, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; cp violation; mass; model
OSTI Identifier:
1476949
Alternate Identifier(s):
OSTI ID: 1262220

Ma, Ernest. Soft A4→Z3 symmetry breaking and cobimaximal neutrino mixing. United States: N. p., Web. doi:10.1016/j.physletb.2016.02.032.
Ma, Ernest. Soft A4→Z3 symmetry breaking and cobimaximal neutrino mixing. United States. doi:10.1016/j.physletb.2016.02.032.
Ma, Ernest. 2016. "Soft A4→Z3 symmetry breaking and cobimaximal neutrino mixing". United States. doi:10.1016/j.physletb.2016.02.032.
@article{osti_1476949,
title = {Soft A4→Z3 symmetry breaking and cobimaximal neutrino mixing},
author = {Ma, Ernest},
abstractNote = {In this study, I propose a model of radiative charged-lepton and neutrino masses with A4 symmetry. The soft breaking of A4 to Z3 lepton triality is accomplished by dimension-three terms. The breaking of Z3 by dimension-two terms allows cobimaximal neutrino mixing (θ13 ≠ 0, θ23 = π/4, δcp=π/2) to be realized with only very small finite calculable deviations from the residual Z3 lepton triality. This construction solves a long-standing technical problem inherent in renormalizable A4 models since their inception.},
doi = {10.1016/j.physletb.2016.02.032},
journal = {Physics Letters. Section B},
number = C,
volume = 755,
place = {United States},
year = {2016},
month = {3}
}