Observational consequences of chaotic inflation with nonminimal coupling to gravity

Abstract

Recently there was an extensive discussion of Higgs inflation in the theory with the potential 4 ( 2v 2 ) 2 and nonminimal coupling to gravity 2 2 R, for 1 and v 1. We extend this investigation to the theories m 2 2 2 and 4 ( 2v 2 ) 2 with arbitrary values of and v and describe implementation of these models in supergravity. We analyze observational consequences of these models and find a surprising coincidence of the inflationary predictions of the model 4 ( 2v 2 ) 2 with < 0 in the limit ||v 2 1 with the predictions of the Higgs inflation scenario for 1.