scholarly journals Falsifying high-scale baryogenesis with neutrinoless double beta decay and lepton flavor violation

2015 ◽  
Vol 92 (3) ◽  
Author(s):  
Frank F. Deppisch ◽  
Julia Harz ◽  
Wei-Chih Huang ◽  
Martin Hirsch ◽  
Heinrich Päs
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Lepton Flavor Violation ◽  
High Scale ◽  
Lepton Flavor ◽  
Flavor Violation

LEPTON FLAVOR VIOLATION, LEPTOGENESIS AND NEUTRINO MIXING IN QUARK-LEPTON COMPLEMENTARITY SCENARIOS

2007 ◽  
Vol 22 (31) ◽  
pp. 5875-5888 ◽  
Author(s):  
WERNER RODEJOHANN ◽  
KATHRIN A. HOCHMUTH
Keyword(s):  
Detailed Analysis ◽  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Lepton Flavor Violation ◽  
Neutrino Mixing ◽  
Lepton Flavor ◽  
Flavor Violation

We conduct a detailed analysis of the phenomenology of two predictive see-saw scenarios which lead to the Quark-Lepton Complementarity relation θ12+θC = π/4. The neutrino mixing observables and their correlations, neutrinoless double beta decay, lepton flavor violating decays such as μ → eγ and leptogenesis are discussed. The features which allow to distinguish the scenarios are identified.

scholarly journals NEUTRINOLESS DOUBLE BETA DECAY AND LEPTON FLAVOR VIOLATION

2005 ◽  
Vol 20 (15) ◽  
pp. 3340-3342
Author(s):  
VINCENZO CIRIGLIANO
Keyword(s):  
Beta Decay ◽  
Neutrino Mass ◽  
Diagnostic Tool ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Lepton Flavor Violation ◽  
Lepton Flavor ◽  
Flavor Violation

I argue that muon lepton flavor violating (LFV) processes (such as μ → eγ and μ → e conversion in nuclei) provide a useful diagnostic tool to determine whether or not the effective neutrino mass can be safely extracted from the rate of neutrinoless double beta decay.

A STRATEGY FOR DISCOVERING HEAVY NEUTRINOS

1996 ◽  
Vol 11 (09) ◽  
pp. 1607-1611
Author(s):  
CLEMENS A. HEUSCH ◽  
PETER MINKOWSKI
Keyword(s):  
Energy Range ◽  
Beta Decay ◽  
Neutrino Mass ◽  
Particle Physics ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Mass Problem ◽  
Lepton Flavor ◽  
Majorana Neutrinos ◽  
Unique Capability

Same-sign lepton collisions in the TeV energy range may well have the unique capability to search for clear signals for the exchange of heavy Majorana neutrinos. Lepton-flavor-violating transitions e−e−→W−W− can thus contribute to the understanding of two unsolved riddles in particle physics: the neutrino mass problem and the question of the Dirac or Majorana character of heavy neutrinos. This search is not similarly accessible to such effects as neutrinoless double beta decay. The resulting experimental signatures are hard to miss.

scholarly journals Status and implications of neutrino masses: A brief panorama

2015 ◽  
Vol 30 (13) ◽  
pp. 1530034 ◽  
Author(s):  
José W. F. Valle
Keyword(s):  
Particle Physics ◽  
Gauge Coupling ◽  
Double Beta Decay ◽  
Neutrino Masses ◽  
Lepton Flavor Violation ◽  
Cosmic Inflation ◽  
Neutrino Sector ◽  
Lepton Flavor ◽  
Flavor Violation

With the historic discovery of the Higgs boson our picture of particle physics would have been complete were it not for the neutrino sector and cosmology. I briefly discuss the role of neutrino masses and mixing upon gauge coupling unification, electroweak breaking and the flavor sector. Time is ripe for new discoveries such as leptonic CP violation, charged lepton flavor violation and neutrinoless double beta decay. Neutrinos could also play a role in elucidating the nature of dark matter and cosmic inflation.

scholarly journals Probing leptogenesis

2018 ◽  
Vol 33 (05n06) ◽  
pp. 1842005 ◽  
Author(s):  
E. J. Chun ◽  
G. Cvetič ◽  
P. S. B. Dev ◽  
M. Drewes ◽  
C. S. Fong ◽  
...  
Keyword(s):  
Beta Decay ◽  
Neutrino Oscillation ◽  
Necessary Conditions ◽  
Experimental Tests ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Symmetric Model ◽  
High Scale ◽  
Heavy Leptons ◽  
Neutral Heavy Leptons

The focus of this paper lies on the possible experimental tests of leptogenesis scenarios. We consider both leptogenesis generated from oscillations, as well as leptogenesis from out-of-equilibrium decays. As the Akhmedov–Rubakov–Smirnov (ARS) mechanism allows for heavy neutrinos in the GeV range, this opens up a plethora of possible experimental tests, e.g. at neutrino oscillation experiments, neutrinoless double beta decay, and direct searches for neutral heavy leptons at future facilities. In contrast, testing leptogenesis from out-of-equilibrium decays is a quite difficult task. We comment on the necessary conditions for having successful leptogenesis at the TeV-scale. We further discuss possible realizations and their model specific testability in extended seesaw models, models with extended gauge sectors, and supersymmetric leptogenesis. Not being able to test high-scale leptogenesis directly, we present a way to falsify such scenarios by focusing on their washout processes. This is discussed specifically for the left–right symmetric model and the observation of a heavy [Formula: see text], as well as model independently when measuring [Formula: see text] washout processes at the LHC or neutrinoless double beta decay.

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