Baryogenesis via leptogenesis in multi-field inflation

In multi-field reheating after modular j -inflation we investigate the conditions under which baryogenesis via non-thermal leptogenesis can be successfully realized. We introduce three heavy right-handed neutrinos to the non-supersymmetric Standard Model of particle physics, assuming hierarchical ne...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2018-09, Vol.78 (9), p.1-6, Article 774
Main Authors: Panotopoulos, Grigoris, Videla, Nelson
Format: Article
Language:English
Subjects:
Analysis
Astronomy
Astrophysics and Cosmology
Cosmology
Elementary Particles
Hadrons
Heating
Heavy Ions
Inflation (Economics)
Lower bounds
Measurement Science and Instrumentation
Neutrinos
Nuclear Energy
Nuclear Physics
Particle physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
Standard model (particle physics)
String Theory
Supersymmetry
Upper bounds
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Summary:In multi-field reheating after modular j -inflation we investigate the conditions under which baryogenesis via non-thermal leptogenesis can be successfully realized. We introduce three heavy right-handed neutrinos to the non-supersymmetric Standard Model of particle physics, assuming hierarchical neutrino masses. Considering a typical mass for the first right-handed neutrino of the order of 10 11  GeV, suggested from the seesaw mechanism and also from concrete SO (10) grand unification models, we obtain the allowed parameter space for viable baryogenesis. An upper bound for the inflaton mass as well as a lower bound for its branching ratio to the pair of lightest right-handed neutrinos are found and reported.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-018-6266-2