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arXiv · 1509.05419

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

Miguel Escudero·Héctor Ramírez·Lotfi Boubekeur·Elena Giusarma·Olga Mena
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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, $α_s$ and the running of thereof, $β_s$. Our Fisher matrix method benefits from a detailed and realistic appraisal of the expected foregrounds. Future cosmological probes, as the COrE mission, may be able to reach an unprecedented accuracy in the extraction of $β_s$ and rule out the most favoured inflationary models.

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Miguel Escudero, Héctor Ramírez, Lotfi Boubekeur, Elena Giusarma, Olga Mena. 2016-01-25. The present and future of the most favoured inflationary models after $Planck$ 2015. https://doi.org/10.1088/1475-7516%2F2016%2F02%2F020

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