An update on single field models of inflation in light of WMAP7

Understand

In this paper we summarise the status of single field models of inflation in light of the WMAP 7 data release.

• We find little has changed since the 5 year release, and results are consistent with previous findings.
• The increase in the upper bound on the running of the spectral index impacts on the status of the production of Primordial Black Holes from single field models.
• The lower bound on the equilateral configuration of the non-gaussianity parameter is reduced and thus the bounds on the theoretical parameters of (UV) DBI single brane models are weakened.