A no-scale inflationary model to fit them all

John Ellis, Marcos A.G. García, Dimitri V. Nanopoulos, Keith A. Olive

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

The magnitude of B-mode polarization in the cosmic microwave background as measured by BICEP2 favours models of chaotic inflation with a quadratic m 2 φ2/2 potential, whereas data from the Planck satellite favour a small value of the tensor-to-scalar perturbation ratio r that is highly consistent with the Starobinsky R +R2 model. Reality may lie somewhere between these two scenarios. In this paper we propose a minimal two-field no-scale supergravity model that interpolates between quadratic and Starobinsky-like inflation as limiting cases, while retaining the successful prediction ns ≃ 0.96.

Original languageEnglish (US)
Article number044
JournalJournal of Cosmology and Astroparticle Physics
Volume2014
Issue number8
DOIs
StatePublished - Aug 1 2014

Keywords

  • gravitational waves and CMBR polarization
  • inflation
  • supersymmetry and cosmology

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