Cosmic inflation and model comparison: quel est le meilleur modèle d'inflation?

Vincent Vennin, Jerome Martin, Christophe Ringeval

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We analyze the implications for inflation of the recently released Planck Cosmic Microwave Background data and explain why the single-field slow-roll scenarios with minimal kinetic terms are favored. Within this class of models, we show how Bayesian model comparison can be used to further exclude about one third of the inflationary scenarios. We also study the end of inflation and show that Planck can already constrain the reheating phase. Finally, we conclude by discussing how future missions will be able to improve our knowledge of the inflationary mechanism.
Original languageEnglish
Pages (from-to)960-968
Number of pages9
JournalComptes Rendus Physiques
Issue number10
Early online date26 Sept 2015
Publication statusPublished - 1 Dec 2015


  • cosmology
  • inflation
  • model comparison


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