Inflation in no-scale supergravity

$R+R^2$ Supergravity is known to be equivalent to standard Supergravity coupled to two chiral supermultiples with a no-scale K\"ahler potential. Within this framework, that can accomodate vanishing vacuum energy and spontaneous supersymmetry breaking, we consider modifications of the associated...

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Detalles Bibliográficos
Autores principales: Lahanas, A.B., Tamvakis, K.
Lenguaje:eng
Publicado: 2015
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.91.085001
http://cds.cern.ch/record/1983371
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author Lahanas, A.B.
Tamvakis, K.
author_facet Lahanas, A.B.
Tamvakis, K.
author_sort Lahanas, A.B.
collection CERN
description $R+R^2$ Supergravity is known to be equivalent to standard Supergravity coupled to two chiral supermultiples with a no-scale K\"ahler potential. Within this framework, that can accomodate vanishing vacuum energy and spontaneous supersymmetry breaking, we consider modifications of the associated superpotential and study the resulting models, which, viewed as generalizations of the Starobinsky model, for a range of the superpotential parameters, describe viable single-field slow-roll inflation.
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language eng
publishDate 2015
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spelling cern-19833712023-03-14T17:30:08Zdoi:10.1103/PhysRevD.91.085001http://cds.cern.ch/record/1983371engLahanas, A.B.Tamvakis, K.Inflation in no-scale supergravityParticle Physics - Theory$R+R^2$ Supergravity is known to be equivalent to standard Supergravity coupled to two chiral supermultiples with a no-scale K\"ahler potential. Within this framework, that can accomodate vanishing vacuum energy and spontaneous supersymmetry breaking, we consider modifications of the associated superpotential and study the resulting models, which, viewed as generalizations of the Starobinsky model, for a range of the superpotential parameters, describe viable single-field slow-roll inflation.R+R2 supergravity is known to be equivalent to standard supergravity coupled to two chiral supermultiples with a no-scale Kähler potential. Within this framework, that can accommodate vanishing vacuum energy and spontaneous supersymmetry breaking, we consider modifications of the associated superpotential and study the resulting models, which, viewed as generalizations of the Starobinsky model, for a range of the superpotential parameters, describe viable single-field slow-roll inflation. In all models studied in this work, the tensor-to-scalar ratio is found to be small, well below the upper bound established by the very recent PLANCK and BICEP2 data.$R+R^2$ Supergravity is known to be equivalent to standard Supergravity coupled to two chiral supermultiples with a no-scale K\"ahler potential. Within this framework, that can accomodate vanishing vacuum energy and spontaneous supersymmetry breaking, we consider modifications of the associated superpotential and study the resulting models, which, viewed as generalizations of the Starobinsky model, for a range of the superpotential parameters, describe viable single-field slow-roll inflation. In all models studied in this work the tensor to scalar ratio is found to be small, well below the upper bound established by the very recent PLANCK and BICEP2 data.arXiv:1501.06547oai:cds.cern.ch:19833712015-01-26
spellingShingle Particle Physics - Theory
Lahanas, A.B.
Tamvakis, K.
Inflation in no-scale supergravity
title Inflation in no-scale supergravity
title_full Inflation in no-scale supergravity
title_fullStr Inflation in no-scale supergravity
title_full_unstemmed Inflation in no-scale supergravity
title_short Inflation in no-scale supergravity
title_sort inflation in no-scale supergravity
topic Particle Physics - Theory
url https://dx.doi.org/10.1103/PhysRevD.91.085001
http://cds.cern.ch/record/1983371
work_keys_str_mv AT lahanasab inflationinnoscalesupergravity
AT tamvakisk inflationinnoscalesupergravity

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