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arxiv: 1404.6478 · v2 · pith:AIJX5ILJnew · submitted 2014-04-25 · 🌌 astro-ph.CO · hep-th

Non-Gaussianity after BICEP2

classification 🌌 astro-ph.CO hep-th
keywords non-gaussianitymodelsanalyzebicep2classconfirmedconstraineddescribed
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We analyze primordial non-Gaussianity in single field inflationary models when the tensor/scalar ratio is large. Our results show that detectable levels of non-Gaussianity $f_{NL} \sim 50$ are still possible in the simplest class of models described by the effective theory of inflation. However, the shape is very tightly constrained, making a sharp prediction that could be confirmed or falsified by a future detection of non-Gaussianity.

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