Generalized Rp-attractor cosmology in the Jordan and Einstein frames: New type of attractors and revisiting standard Jordan frame Rp inflation

In this work, we study a new class of attractor models which shall call generalized [Formula: see text]-attractor models. This is based on generalization the Einstein frame potential text] gravity in Jordan frame. We present properties corresponding nonminimally coupled theory, and calculate observational indices inflation As show, there large scalar theories, with an arbitrary nonminimal coupling satisfies certain conditions, that yield same potential, why these are characterized attractors. demonstrate, viable well fitted within Planck constraints. includes subclass models, namely frame, feature also known literature. highlight important issue related to be nonviable. By conformal invariance, model should not. pinpoint source problem using two different approaches as arises literature due some standard simplifications made for sake analyticity. demonstrate correct way analyze solely slow-roll conditions.