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Planck Constraints on Inflation

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Title: Planck Constraints on Inflation

Presenter: J. Lesgourgues  (CERN)

Chair: P. Hernandez (U. Valencia)

Abstract:We will discuss the implications of the first Planck CMB data for our understanding inflation. We will see that a power-law primordial spectrum provides a good fit to the temperature spectrum, and that under this assumption we can discriminate among several single-field inflationary models. We will review the issue of possible features in the primordial spectrum, and show the result of a reconstruction of the observable inflaton potential beyond slow-roll. Finally, we will show that models with a fraction of isocurvature mode are not significantly favoured.

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Participant PIN: 842697#