scholarly journals Lepton Number Violation and Neutrino Masses

2021 ◽  
Author(s):  
Bjoern Lehnert
Keyword(s):  
Lepton Number ◽  
Neutrino Masses ◽  
Lepton Number Violation ◽  
Number Violation

scholarly journals Neutrino masses, leptogenesis and dark matter from small lepton number violation?

2017 ◽  
Vol 2017 (12) ◽  
pp. 024-024 ◽  
Author(s):  
Asmaa Abada ◽  
Giorgio Arcadi ◽  
Valerie Domcke ◽  
Michele Lucente
Keyword(s):  
Dark Matter ◽  
Lepton Number ◽  
Neutrino Masses ◽  
Lepton Number Violation ◽  
Number Violation

Cosmological implications of lepton number violation

2018 ◽  
Vol 33 (31) ◽  
pp. 1844017
Author(s):  
Heinrich Päs
Keyword(s):  
Dark Matter ◽  
Standard Model ◽  
Lepton Number ◽  
Neutrino Masses ◽  
Beyond The Standard Model ◽  
Model Framework ◽  
Lepton Number Violation ◽  
The Standard Model ◽  
Number Violation ◽  
The Universe

The abundances of baryons and leptons are not only closely related to each other and to the generation of neutrino masses but may also be linked to the dark matter in the Universe. In this paper we review how a consistent physics beyond the Standard Model framework for cosmology and neutrino masses could arise by studying these interrelations.

scholarly journals Consequences of Neutrinoless Double Beta Decay and WMAP

2003 ◽  
Vol 18 (32) ◽  
pp. 2243-2254 ◽  
Author(s):  
H. V. Klapdor-Kleingrothaus ◽  
U. Sarkar
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
New Physics ◽  
Lepton Number ◽  
Double Beta Decay ◽  
Neutrino Masses ◽  
Beyond The Standard Model ◽  
Lepton Number Violation ◽  
Absolute Mass ◽  
Number Violation

Observation of the neutrinoless double beta decay (0νββ) has established that there is lepton number violation in nature and the neutrino masses are Majorana in nature. It also gives the absolute mass of the neutrinos and discriminates between different models of neutrino masses. The allowed amount of lepton number violation puts severe constraints on some possible new physics beyond the standard model. The recent results from WMAP are consistent with the consequences of the neutrinoless double beta decay. They improve some of these constraints very marginally, which we shall summarize here. We mention the new physics which is not affected by WMAP, and which could make the limits from the neutrinoless double beta decay even consistent with much tighter future cosmological limits.

scholarly journals Lepton Number Violation and Neutrino Masses in 3-3-1 Models

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Richard H. Benavides ◽  
Luis N. Epele ◽  
Huner Fanchiotti ◽  
Carlos García Canal ◽  
William A. Ponce
Keyword(s):  
Gauge Field ◽  
Lepton Number ◽  
Neutrino Masses ◽  
Longitudinal Polarization ◽  
Polarization Component ◽  
Lepton Number Violation ◽  
Number Violation

Lepton number violation and its relation to neutrino masses are investigated in several versions of theSU3c⊗SU3L⊗U1xmodel. Spontaneous and explicit violation and conservation of the lepton number are considered. In one of the models (the so-called economical one), the lepton number is spontaneously violated and it is found that the would be Majoron is not present because it is gauged away, providing in this way the longitudinal polarization component to a now massive gauge field.

scholarly journals Neutrino masses and lepton-number violation in the littlest Higgs scenario

2005 ◽  
Vol 72 (5) ◽  
Author(s):  
Tao Han ◽  
Heather E. Logan ◽  
Biswarup Mukhopadhyaya ◽  
Raghavendra Srikanth
Keyword(s):  
Lepton Number ◽  
Neutrino Masses ◽  
Lepton Number Violation ◽  
Number Violation

scholarly journals LEPTON NUMBER VIOLATION VIA INTERMEDIATE BLACK HOLE PROCESSES

2006 ◽  
Vol 21 (34) ◽  
pp. 2561-2568 ◽  
Author(s):  
JASON DOUKAS ◽  
S. RAI CHOUDHURY ◽  
G. C. JOSHI
Keyword(s):  
Black Hole ◽  
Lepton Number ◽  
Neutrino Masses ◽  
Quantization Scheme ◽  
Lepton Number Violation ◽  
Interaction Terms ◽  
The Standard Model ◽  
Number Violation ◽  
Muon Magnetic Moment ◽  
Lepton Family

Black holes at the TeV scale are investigated in the extra large dimension scenario. We interpret the lightest black hole excitation as a singlet scalar field, and show how interaction terms can be appended to the standard model at the dimension five non-renormalizable level. Lepton family number violation is natural in this model. Muon magnetic moment, and neutrino masses are investigated. We also present a quantization scheme in n dimensions.

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