ACT, SPT, and chaotic inflation

Abstract

We show that the simplest generalization of the chaotic inflation model $\frac{1}{2}{m}^2\ddot{I}{•}^2$ with nonminimal coupling to gravity $(1+\ddot{I}•)R$ provides a good match to the results of the latest data release of the Atacama Cosmology Telescope, with $r\approx 10^{-2}$.

The original title, "A simple scenario for the last ACT," was changed to match the title of the version to appear in PRL. 3 pages, 3 figures, two Mathematica notebooks attached. To view attachments, please download and extract the gzipped tar source file listed under "Other formats"