Radiative inflation and dark energy RIDEs again after BICEP2
Radiative inflation and dark energy RIDEs again after BICEP2
Following the ground-breaking measurement of the tensor-to-scalar ratio r=0.20+0.07-0.05 by the BICEP2 collaboration, we perform a statistical analysis of a model that combines Radiative Inflation with Dark Energy (RIDE) based on the M2|Φ|2 ln (|Φ|2/Λ2) potential and compare its predictions to those based on the traditional chaotic inflation M2|Φ|2 potential. We find a best-fit value in the RIDE model of r=0.18 as compared to r=0.17 in the chaotic model, with the spectral index being nS=0.96 in both models.
hep-ph, astro-ph.CO
Di Bari, Pasquale
3fe21e59-0eff-41bc-8faa-fdd817146418
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Luhn, Christoph
59a723a0-9d34-48e8-9b97-9d608ad196c8
Merle, Alexander
18b2b79d-5edb-4087-bf76-86050237604b
Schmidt-May, Angnis
3e553a0d-255c-4090-abab-eb40c2beac17
18 August 2014
Di Bari, Pasquale
3fe21e59-0eff-41bc-8faa-fdd817146418
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Luhn, Christoph
59a723a0-9d34-48e8-9b97-9d608ad196c8
Merle, Alexander
18b2b79d-5edb-4087-bf76-86050237604b
Schmidt-May, Angnis
3e553a0d-255c-4090-abab-eb40c2beac17
Di Bari, Pasquale, King, Stephen F., Luhn, Christoph, Merle, Alexander and Schmidt-May, Angnis
(2014)
Radiative inflation and dark energy RIDEs again after BICEP2.
Journal of Cosmology and Astroparticle Physics, 2014.
(doi:10.1088/1475-7516/2014/08/040).
Abstract
Following the ground-breaking measurement of the tensor-to-scalar ratio r=0.20+0.07-0.05 by the BICEP2 collaboration, we perform a statistical analysis of a model that combines Radiative Inflation with Dark Energy (RIDE) based on the M2|Φ|2 ln (|Φ|2/Λ2) potential and compare its predictions to those based on the traditional chaotic inflation M2|Φ|2 potential. We find a best-fit value in the RIDE model of r=0.18 as compared to r=0.17 in the chaotic model, with the spectral index being nS=0.96 in both models.
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Bari_2014_J._Cosmol._Astropart._Phys._2014_040
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Accepted/In Press date: 4 July 2014
Published date: 18 August 2014
Additional Information:
13 pages, 4 figures; v2: Note added, matches JCAP published version
Keywords:
hep-ph, astro-ph.CO
Organisations:
Physics & Astronomy, Theory Group
Identifiers
Local EPrints ID: 408833
URI: http://eprints.soton.ac.uk/id/eprint/408833
ISSN: 1475-7516
PURE UUID: 0949cc41-d425-4ef7-b020-e893b878a404
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Date deposited: 28 May 2017 04:02
Last modified: 21 Aug 2025 00:00
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Contributors
Author:
Christoph Luhn
Author:
Alexander Merle
Author:
Angnis Schmidt-May
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