sin θ 13 and neutrino mass matrix with an approximate flavor symmetry

2012 ◽  
Vol 2012 (7) ◽  
Author(s):  
Riazuddin Shahbuddin
Keyword(s):  
Neutrino Mass ◽  
Mass Matrix ◽  
Neutrino Mass Matrix ◽  
Flavor Symmetry

scholarly journals PREDICTIONS OF AN A4 MODEL WITH A FIVE-PARAMETER NEUTRINO MASS MATRIX

2007 ◽  
Vol 22 (03) ◽  
pp. 181-189 ◽  
Author(s):  
L. LAVOURA ◽  
H. KÜHBÖCK
Keyword(s):  
Neutrino Mass ◽  
Numerical Study ◽  
Mass Matrix ◽  
Neutrino Mass Matrix ◽  
Flavor Symmetry ◽  
Scatter Plots

We consider a model with an A4 flavor symmetry, recently proposed by Ma,1 and make a numerical study, through scatter plots, of its neutrino mass matrix.

scholarly journals Two Higgs singlets \(A_4\) Flavor Symmetry with Minimal Breaking

2014 ◽  
Vol 24 (2) ◽  
pp. 113 ◽  
Author(s):  
Nguyen Thanh Phong
Keyword(s):  
Neutrino Mass ◽  
Mass Matrix ◽  
Baryon Asymmetry ◽  
Neutrino Mass Matrix ◽  
Flavor Symmetry ◽  
Mixing Angle ◽  
Mixing Angles ◽  
The Universe

We study the seesaw realization of a \(A_4\)model with two Higgs singlets. In this model, the mixing angle \(\theta_{13}\) and leptogenesis are zero if the components of right handed neutrino mass matrix resulting from the two Higgs singlets are exact degenerate. We then study the minimal breaking of the model by a tiny shift between aforementioned components. This minimal breaking results in deviations of lepton mixing angles from their tri-bimaximal mixing values in which the current experimental value of \(\theta_{13}\) can be achieved. Besides, the baryon asymmetry of the Universe is successfully generated through non-zero leptogenesis by the decay of right handed neutrinos.

scholarly journals Embedding the texture of the neutrino mass matrix into the MaVaNs scenario

2006 ◽  
Vol 2006 (01) ◽  
pp. 042-042 ◽  
Author(s):  
Mizue Honda ◽  
Ryo Takahashi ◽  
Morimitsu Tanimoto
Keyword(s):  
Neutrino Mass ◽  
Mass Matrix ◽  
Neutrino Mass Matrix

scholarly journals Broken S3 symmetry in the neutrino mass matrix

2011 ◽  
Vol 702 (1) ◽  
pp. 28-33 ◽  
Author(s):  
S. Dev ◽  
Shivani Gupta ◽  
Radha Raman Gautam
Keyword(s):  
Neutrino Mass ◽  
Mass Matrix ◽  
Neutrino Mass Matrix

scholarly journals (Z2)3symmetry of the nontribimaximal pattern for the neutrino mass matrix

2012 ◽  
Vol 86 (3) ◽  
Author(s):  
E. I. Lashin ◽  
M. Abbas ◽  
N. Chamoun ◽  
S. Nasri
Keyword(s):  
Neutrino Mass ◽  
Mass Matrix ◽  
Neutrino Mass Matrix
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