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Reconstructing slow-roll Scalar-Tensor Gauss-Bonnet single field inflation from running spectral data

We examine cosmological inflation in a broad family of scalar-tensor models characterized by scalar-dependent non minimal kinetic couplings and Gauss-Bonnet terms. Using a slow roll-approximation, we compute in detail theoretical expectations of observables as spectral indexes, scalar-to-tensor rati...

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Autores principales: Belhaj, A., Es-Sobbahi, H., Oualaid, M., Torrente-Lujan, E.
Lenguaje:eng
Publicado: 2021
Materias:
Acceso en línea:http://cds.cern.ch/record/2779456
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author Belhaj, A.
Es-Sobbahi, H.
Oualaid, M.
Torrente-Lujan, E.
author_facet Belhaj, A.
Es-Sobbahi, H.
Oualaid, M.
Torrente-Lujan, E.
author_sort Belhaj, A.
collection CERN
description We examine cosmological inflation in a broad family of scalar-tensor models characterized by scalar-dependent non minimal kinetic couplings and Gauss-Bonnet terms. Using a slow roll-approximation, we compute in detail theoretical expectations of observables as spectral indexes, scalar-to-tensor ratio, their running and their running of the running in terms of the parameters which characterize the scalar-tensor model. Hierarchies of consistency equations relating scalar and tensor pertubations and higher order running parameters are presented and examined at the slow roll approximation for the kind of models of interest in this work. From We find detailed expressions for constraints among these parameters. For a specific model, we analyse such quantities and make contact with latest Planck observational data .
id cern-2779456
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
record_format invenio
spelling cern-27794562023-01-31T10:21:53Zhttp://cds.cern.ch/record/2779456engBelhaj, A.Es-Sobbahi, H.Oualaid, M.Torrente-Lujan, E.Reconstructing slow-roll Scalar-Tensor Gauss-Bonnet single field inflation from running spectral datagr-qcGeneral Relativity and Cosmologyastro-ph.COAstrophysics and Astronomyhep-thParticle Physics - TheoryWe examine cosmological inflation in a broad family of scalar-tensor models characterized by scalar-dependent non minimal kinetic couplings and Gauss-Bonnet terms. Using a slow roll-approximation, we compute in detail theoretical expectations of observables as spectral indexes, scalar-to-tensor ratio, their running and their running of the running in terms of the parameters which characterize the scalar-tensor model. Hierarchies of consistency equations relating scalar and tensor pertubations and higher order running parameters are presented and examined at the slow roll approximation for the kind of models of interest in this work. From We find detailed expressions for constraints among these parameters. For a specific model, we analyse such quantities and make contact with latest Planck observational data .arXiv:2108.11881FISPAC-TH/31415-2021UQBAR-TH/05772-2021oai:cds.cern.ch:27794562021-08-26
spellingShingle gr-qc
General Relativity and Cosmology
astro-ph.CO
Astrophysics and Astronomy
hep-th
Particle Physics - Theory
Belhaj, A.
Es-Sobbahi, H.
Oualaid, M.
Torrente-Lujan, E.
Reconstructing slow-roll Scalar-Tensor Gauss-Bonnet single field inflation from running spectral data
title Reconstructing slow-roll Scalar-Tensor Gauss-Bonnet single field inflation from running spectral data
title_full Reconstructing slow-roll Scalar-Tensor Gauss-Bonnet single field inflation from running spectral data
title_fullStr Reconstructing slow-roll Scalar-Tensor Gauss-Bonnet single field inflation from running spectral data
title_full_unstemmed Reconstructing slow-roll Scalar-Tensor Gauss-Bonnet single field inflation from running spectral data
title_short Reconstructing slow-roll Scalar-Tensor Gauss-Bonnet single field inflation from running spectral data
title_sort reconstructing slow-roll scalar-tensor gauss-bonnet single field inflation from running spectral data
topic gr-qc
General Relativity and Cosmology
astro-ph.CO
Astrophysics and Astronomy
hep-th
Particle Physics - Theory
url http://cds.cern.ch/record/2779456
work_keys_str_mv AT belhaja reconstructingslowrollscalartensorgaussbonnetsinglefieldinflationfromrunningspectraldata
AT essobbahih reconstructingslowrollscalartensorgaussbonnetsinglefieldinflationfromrunningspectraldata
AT oualaidm reconstructingslowrollscalartensorgaussbonnetsinglefieldinflationfromrunningspectraldata
AT torrentelujane reconstructingslowrollscalartensorgaussbonnetsinglefieldinflationfromrunningspectraldata