 Planck 2015 inflation constraints by Planck Collaboration

Primary analysis of the 2015 cosmic microwave background data and inflationary implications. The original February2015 version reports a red scalar tilt and upper limits on tensors; it already disfavors a simple quadratic potential relative to lower-tensor alternatives. Original version: arxiv.org/abs/1502.02114v1 . Full title: Planck2015results.XX.Constraints on inflation.