Does Current Data Prefer a Non-minimally Coupled Inflaton?

Lotfi Boubekeur, Elena Giusarma, Olga Mena +1

We examine the impact of a non-minimal coupling of the inflaton to the Ricci scalar, $\frac{1}{2}\xi R{\varphi }^2$, on the inflationary predictions. Such a non-minimal coupling is expected to be…