Supersymmetric Hybrid Inflation with Non-Minimal Kähler potential

Minimal supersymmetric hybrid inflation based on a minimal Kahler potential predicts a spectral index n_s\gsim 0.98. On the other hand, WMAP three year data prefers a central value n_s \approx 0.95. We propose a class of supersymmetric hybrid inflation models based on the same minimal superpotential...

Descripción completa

Detalles Bibliográficos
Autores principales: Bastero-Gil, M., King, S.F., Shafi, Q.
Lenguaje:eng
Publicado: 2006
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2006.06.085
http://cds.cern.ch/record/943907
_version_ 1780909871468642304
author Bastero-Gil, M.
King, S.F.
Shafi, Q.
author_facet Bastero-Gil, M.
King, S.F.
Shafi, Q.
author_sort Bastero-Gil, M.
collection CERN
description Minimal supersymmetric hybrid inflation based on a minimal Kahler potential predicts a spectral index n_s\gsim 0.98. On the other hand, WMAP three year data prefers a central value n_s \approx 0.95. We propose a class of supersymmetric hybrid inflation models based on the same minimal superpotential but with a non-minimal Kahler potential. Including radiative corrections using the one-loop effective potential, we show that the prediction for the spectral index is sensitive to the small non-minimal corrections, and can lead to a significantly red-tilted spectrum, in agreement with WMAP.
id cern-943907
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
record_format invenio
spelling cern-9439072023-03-14T18:10:30Zdoi:10.1016/j.physletb.2006.06.085http://cds.cern.ch/record/943907engBastero-Gil, M.King, S.F.Shafi, Q.Supersymmetric Hybrid Inflation with Non-Minimal Kähler potentialParticle Physics - PhenomenologyMinimal supersymmetric hybrid inflation based on a minimal Kahler potential predicts a spectral index n_s\gsim 0.98. On the other hand, WMAP three year data prefers a central value n_s \approx 0.95. We propose a class of supersymmetric hybrid inflation models based on the same minimal superpotential but with a non-minimal Kahler potential. Including radiative corrections using the one-loop effective potential, we show that the prediction for the spectral index is sensitive to the small non-minimal corrections, and can lead to a significantly red-tilted spectrum, in agreement with WMAP.Minimal supersymmetric hybrid inflation based on a minimal Kahler potential predicts a spectral index n_s\gsim 0.98. On the other hand, WMAP three year data prefers a central value n_s \approx 0.95. We propose a class of supersymmetric hybrid inflation models based on the same minimal superpotential but with a non-minimal Kahler potential. Including radiative corrections using the one-loop effective potential, we show that the prediction for the spectral index is sensitive to the small non-minimal corrections, and can lead to a significantly red-tilted spectrum, in agreement with WMAP.Minimal supersymmetric hybrid inflation based on a minimal Kähler potential predicts a spectral index ns≳0.98 . On the other hand, WMAP three year data prefers a central value ns≈0.95 . We propose a class of supersymmetric hybrid inflation models based on the same minimal superpotential but with a non-minimal Kähler potential. Including radiative corrections using the one-loop effective potential, we show that the prediction for the spectral index is sensitive to the small non-minimal corrections, and can lead to a significantly red-tilted spectrum, in agreement with WMAP.hep-ph/0604198BA-06-14CERN-PH-TH-2006-071UG-FT-204-06CAFPE-74-06BA-2006-14CAFPE-2006-74CERN-PH-TH-2006-071UG-FT-204oai:cds.cern.ch:9439072006-04-24
spellingShingle Particle Physics - Phenomenology
Bastero-Gil, M.
King, S.F.
Shafi, Q.
Supersymmetric Hybrid Inflation with Non-Minimal Kähler potential
title Supersymmetric Hybrid Inflation with Non-Minimal Kähler potential
title_full Supersymmetric Hybrid Inflation with Non-Minimal Kähler potential
title_fullStr Supersymmetric Hybrid Inflation with Non-Minimal Kähler potential
title_full_unstemmed Supersymmetric Hybrid Inflation with Non-Minimal Kähler potential
title_short Supersymmetric Hybrid Inflation with Non-Minimal Kähler potential
title_sort supersymmetric hybrid inflation with non-minimal kähler potential
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.physletb.2006.06.085
http://cds.cern.ch/record/943907
work_keys_str_mv AT basterogilm supersymmetrichybridinflationwithnonminimalkahlerpotential
AT kingsf supersymmetrichybridinflationwithnonminimalkahlerpotential
AT shafiq supersymmetrichybridinflationwithnonminimalkahlerpotential

Ejemplares similares