scholarly journals Majorana neutrinos, neutrino mass spectrum,CPviolation, and neutrinoless double β decay. II. Mixing of four neutrinos

2001 ◽  
Vol 64 (11) ◽  
Author(s):  
S. M. Bilenky ◽  
S. Pascoli ◽  
S. T. Petcov
Keyword(s):  
Mass Spectrum ◽  
Neutrino Mass ◽  
Β Decay ◽  
Neutrino Mass Spectrum ◽  
Majorana Neutrinos ◽  
Double Β Decay

scholarly journals TEXTURE-ZERO MODEL FOR THE LEPTON MASS MATRICES

2012 ◽  
Vol 27 (28) ◽  
pp. 1250159 ◽  
Author(s):  
P. M. FERREIRA ◽  
L. LAVOURA
Keyword(s):  
Mass Spectrum ◽  
Neutrino Mass ◽  
Mass Matrix ◽  
Type I ◽  
Mixing Angle ◽  
Mass Matrices ◽  
Neutrino Mass Spectrum ◽  
Texture Zero ◽  
Vanishing Elements ◽  
Reactor Mixing

We suggest a simple model, based on the type-I seesaw mechanism, for the lepton mass matrices. The model hinges on an Abelian symmetry which leads to mass matrices with some vanishing matrix elements. The model predicts one massless neutrino and Meμ = 0 (M is the effective light-neutrino Majorana mass matrix). We show that these predictions agree with the present experimental data if the neutrino mass spectrum is inverted, i.e. if m3 = 0, provided the Dirac phase δ is very close to maximal (±π/ 2). In the case of a normal neutrino mass spectrum, i.e. when m1 = 0, the agreement of our model with the data is imperfect — the reactor mixing angle θ13 is too small in our model. Minimal leptogenesis is not an option in our model due to the vanishing elements in the Yukawa-coupling matrices.

scholarly journals Conditions for statistical determination of the neutrino mass spectrum in radiative emission of neutrino pairs in atoms

2016 ◽  
Vol 93 (1) ◽  
Author(s):  
Ningqiang Song ◽  
R. Boyero Garcia ◽  
J. J. Gomez-Cadenas ◽  
M. C. Gonzalez-Garcia ◽  
A. Peralta Conde ◽  
...  
Keyword(s):  
Mass Spectrum ◽  
Neutrino Mass ◽  
Radiative Emission ◽  
Neutrino Mass Spectrum ◽  
Statistical Determination

scholarly journals Dual models of the neutrino mass spectrum

2014 ◽  
Vol 89 (1) ◽  
Author(s):  
Jiajun Liao ◽  
D. Marfatia ◽  
K. Whisnant
Keyword(s):  
Mass Spectrum ◽  
Neutrino Mass ◽  
Neutrino Mass Spectrum ◽  
Dual Models
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