Non-minimal sneutrino inflation, Peccei-Quinn phase transition and non-thermal leptogenesis

We consider a phenomenological extension of the minimal supersymmetric standard model which incorporates non-minimal chaotic inflation, driven by a quartic potential associated with the lightest right-handed sneutrino. Inflation is followed by a Peccei-Quinn phase transition based on renormalizable...

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Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2011-02, Vol.2011 (2), p.019-19
Main Authors: Pallis, C, Toumbas, N
Format: Article
Language:English
Subjects:
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BARYONS
CHAOS THEORY
COSMOLOGY
CP INVARIANCE
INFLATIONARY UNIVERSE
INFLATONS
NEUTRINOS
PARTICLE PRODUCTION
PHASE TRANSFORMATIONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
RENORMALIZATION
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY
UNIVERSE
VISIBLE RADIATION
YUKAWA POTENTIAL
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Summary:We consider a phenomenological extension of the minimal supersymmetric standard model which incorporates non-minimal chaotic inflation, driven by a quartic potential associated with the lightest right-handed sneutrino. Inflation is followed by a Peccei-Quinn phase transition based on renormalizable superpotential terms, which resolves the strong CP and μ problems of the minimal supersymmetric standard model provided that one related parameter of the superpotential is somewhat small. Baryogenesis occurs via non-thermal leptogenesis, which is realized by the inflaton decay. Confronting our scenario with the current observational data on the inflationary observables, the baryon assymetry of the universe, the gravitino limit on the reheating temperature and the upper bound on the light neutrino masses, we constrain the effective Yukawa coupling involved in the decay of the inflaton to relatively small values and the inflaton mass to values lower than 10{sup 12}GeV.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2011/02/019