scholarly journals New results and perspectives in neutrino physics

2019 ◽  
Vol 212 ◽  
pp. 01005
Author(s):  
Yury Kudenko
Keyword(s):  
Neutrino Physics ◽  
Cp Violation ◽  
Beta Decay ◽  
Neutrino Mass ◽  
Neutrino Oscillations ◽  
Mass Measurement ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Sterile Neutrinos ◽  
Neutrino Mass Measurement

A brief review of new results and perspectives in neutrino physics is presented. An emphasis on a search for CP violation in neutrino oscillations and a search for sterile neutrinos is given. Status of measurement of the direct neutrino mass measurement and searches for neutrinoless double beta decay are also discussed.

scholarly journals A Froggatt–Nielsen flavor model for neutrino physics

2019 ◽  
Vol 34 (19) ◽  
pp. 1950102 ◽  
Author(s):  
Micheal S. Berger ◽  
Maria Dawid
Keyword(s):  
Neutrino Physics ◽  
Beta Decay ◽  
Neutrino Mass ◽  
Mass Matrix ◽  
Neutrinoless Double Beta Decay ◽  
Lepton Number ◽  
Double Beta Decay ◽  
Low Energy ◽  
Lepton Number Violation ◽  
Flavor Violation

Superheavy neutrinos can, via the seesaw model, provide a mechanism for lepton number violation. If they are combined with flavor violation as characterized by the Froggatt–Nielsen mechanism, then the phenomenology for the neutrinos in oscillation experiments, neutrinoless double beta decay, and other experiments can be described by a relatively few number of parameters. We describe the low-energy neutrino mass matrix and show that the results are consistent with currently available data.

scholarly journals SUPPRESSION OF 0ν2β DECAY FROM CP VIOLATION

2007 ◽  
Vol 16 (02) ◽  
pp. 561-565
Author(s):  
MAREK GÓŹDŹ ◽  
WIESŁAW A. KAMIŃSKI
Keyword(s):  
Cp Violation ◽  
Beta Decay ◽  
Half Life ◽  
Neutrino Oscillations ◽  
Mass Matrix ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Weak Basis ◽  
The Masses ◽  
Mass Basis

The observed phenomenon of neutrino oscillations is interpreted as the proof that neutrinos must have mass. As this is true for the neutrinos in the mass basis, the mass matrix in the flavor (weak) basis may still contain zeros. This can happen if the CP violating phases, usually neglected, come into play and result in suppression of processes which half-life depends on the masses of νe, νμ, or ντ. In the present paper we investigate the possibility of such suppression of the neutrinoless double beta decay (0ν2β).

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