The present and future of the most favoured inflationary models after Planck 2015

Miguel Escudero; Héctor Ramírez; Lotfi Boubekeur; Elena Giusarma; Olga Mena

doi:10.1088/1475-7516/2016/02/020

The present and future of the most favoured inflationary models after Planck 2015

Miguel Escudero
, Héctor Ramírez
, Lotfi Boubekeur
, Elena Giusarma
, Olga Mena

Física

Universitat de València
Université di Roma La Sapienza

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

The value of the tensor-to-scalar ratio r in the region allowed by the latest Planck 2015 measurements can be associated to a large variety of inflationary models. We discuss here the potential of future Cosmic Microwave Background cosmological observations in disentangling among the possible theoretical scenarios allowed by our analyses of current Planck temperature and polarization data. Rather than focusing only on r, we focus as well on the running of the primordial power spectrum, α_s and the running thereof, β_s. If future cosmological measurements, as those from the COrE mission, confirm the current best-fit value for β_s ≳ 10^-2 as the preferred one, it will be possible to rule-out the most favoured inflationary models.

Original language	English
Article number	020
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2016
Issue number	2
DOIs	https://doi.org/10.1088/1475-7516/2016/02/020
State	Published - 8 Feb 2016

Keywords

CMBR experiments
cosmological parameters from CMBR
inflation

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10.1088/1475-7516/2016/02/020

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abstract = "The value of the tensor-to-scalar ratio r in the region allowed by the latest Planck 2015 measurements can be associated to a large variety of inflationary models. We discuss here the potential of future Cosmic Microwave Background cosmological observations in disentangling among the possible theoretical scenarios allowed by our analyses of current Planck temperature and polarization data. Rather than focusing only on r, we focus as well on the running of the primordial power spectrum, αs and the running thereof, βs. If future cosmological measurements, as those from the COrE mission, confirm the current best-fit value for βs ≳ 10-2 as the preferred one, it will be possible to rule-out the most favoured inflationary models.",

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AU - Mena, Olga

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The present and future of the most favoured inflationary models after Planck 2015

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