Radiative Corrections and Reheating in Supergravity Models of Inflation

Abstract

We consider the effects of radiative corrections in Starobinsky-like models of inflation, concentrating on models of inflation formulated in N=1 no-scale supergravity. Inflaton couplings to matter fields are necessary for reheating and these have an impact on loop corrections to the inflaton potential. Whilst corrections due to the supergravity couplings of the inflaton to Standard Model (MSSM) fields are negligible, we use {\it Planck} data to obtain interesting constraints on GUT bilinear couplings, vevs, and gauge boson masses that could be sharpened by future CMB measurements.

Comments: 18 pages, 13 figures, prepared for: "String Theory and Particle Physics: A Themed Issue of Universe in Honor of Professor Ignatios Antoniadis on the Occasion of His 70th Birthday", edited by George K. Leontaris