High-scale inflation and the tensor tilt

  title={High-scale inflation and the tensor tilt},
  author={Daniel D. Baumann and Hayden Lee and Guilherme Leite Pimentel},
  journal={Journal of High Energy Physics},
  • Daniel D. Baumann, Hayden Lee, Guilherme Leite Pimentel
  • Published 2016
  • Physics
  • Journal of High Energy Physics
  • A bstractIn this paper, we explore a novel observational signature of gravitational corrections during slow-roll inflation. We study the coupling of the inflaton field to higher-curvature tensors in models with a minimal breaking of conformal symmetry. In that case, the most general correction to the tensor two-point function is captured by a coupling to the square of the Weyl tensor. We show that these scenarios lead to a correction to the tilt of the tensor power spectrum and hence a… CONTINUE READING

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