Starobinsky-like inflation from induced gravity

We derive a general criterion that defines all single-field models leading to Starobinsky-like inflation and to universal predictions for the spectral index and tensor-to-scalar ratio, which are in agreement with Planck data. Out of all the theories that satisfy this criterion, we single out a speci...

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Detalles Bibliográficos
Autores principales: Giudice, Gian F., Lee, Hyun Min
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2014.04.020
http://cds.cern.ch/record/1647502
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author Giudice, Gian F.
Lee, Hyun Min
author_facet Giudice, Gian F.
Lee, Hyun Min
author_sort Giudice, Gian F.
collection CERN
description We derive a general criterion that defines all single-field models leading to Starobinsky-like inflation and to universal predictions for the spectral index and tensor-to-scalar ratio, which are in agreement with Planck data. Out of all the theories that satisfy this criterion, we single out a special class of models with the interesting property of retaining perturbative unitarity up to the Planck scale. These models are based on induced gravity, with the Planck mass determined by the vacuum expectation value of the inflaton.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
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spelling cern-16475022022-08-10T20:22:49Zdoi:10.1016/j.physletb.2014.04.020http://cds.cern.ch/record/1647502engGiudice, Gian F.Lee, Hyun MinStarobinsky-like inflation from induced gravityParticle Physics - PhenomenologyWe derive a general criterion that defines all single-field models leading to Starobinsky-like inflation and to universal predictions for the spectral index and tensor-to-scalar ratio, which are in agreement with Planck data. Out of all the theories that satisfy this criterion, we single out a special class of models with the interesting property of retaining perturbative unitarity up to the Planck scale. These models are based on induced gravity, with the Planck mass determined by the vacuum expectation value of the inflaton.We derive a general criterion that defines all single-field models leading to Starobinsky-like inflation and to universal predictions for the spectral index and tensor-to-scalar ratio, which are in agreement with Planck data. Out of all the theories that satisfy this criterion, we single out a special class of models with the interesting property of retaining perturbative unitarity up to the Planck scale. These models are based on induced gravity, with the Planck mass determined by the vacuum expectation value of the inflaton.arXiv:1402.2129CERN-PH-TH-2014-025CERN-PH-TH-2014-025oai:cds.cern.ch:16475022014-02-10
spellingShingle Particle Physics - Phenomenology
Giudice, Gian F.
Lee, Hyun Min
Starobinsky-like inflation from induced gravity
title Starobinsky-like inflation from induced gravity
title_full Starobinsky-like inflation from induced gravity
title_fullStr Starobinsky-like inflation from induced gravity
title_full_unstemmed Starobinsky-like inflation from induced gravity
title_short Starobinsky-like inflation from induced gravity
title_sort starobinsky-like inflation from induced gravity
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.physletb.2014.04.020
http://cds.cern.ch/record/1647502
work_keys_str_mv AT giudicegianf starobinskylikeinflationfrominducedgravity
AT leehyunmin starobinskylikeinflationfrominducedgravity

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