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Radiative Inflation and Dark Energy RIDEs Again after BICEP2

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 $M^2 |\Phi|^2 \ln \left(|\Phi|^2/\Lambda^2 \right)$ potential and compare its predictions to those based on the traditional chaotic inflation $M^2|\Phi|^2$ 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 $n_S=0.96$ in both models.
hep-ph, astro-ph.CO
1475-7516
Bari, Pasquale Di
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
Bari, Pasquale Di
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

Bari, Pasquale Di, 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. (doi:10.1088/1475-7516/2014/08/040).

Record type: Article

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 $M^2 |\Phi|^2 \ln \left(|\Phi|^2/\Lambda^2 \right)$ potential and compare its predictions to those based on the traditional chaotic inflation $M^2|\Phi|^2$ 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 $n_S=0.96$ in both models.

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More information

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: 02 Mar 2021 17:34

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