Intermediate inflation in a generalized induced-gravity scenario
Carlos González (Departamento de Física, Universidad de Atacama, 0000 0001 2228 7602, Avenida Copayapu 485, Copiapó, Chile); Ramón Herrera (Instituto de Física, Pontificia Universidad Católica de Valparaíso, 0000 0001 1537 5962, Avenida Brasil 2950, Casilla 4059, Valparaíso, Chile)
An intermediate inflationary Universe model in the context of non-minimal coupling to the scalar curvature is analyzed. We will conduct our analysis in the slow-roll approximation of the inflationary dynamics and the cosmological perturbations considering a coupling of the form F(φ)=κ+ξnφn . Considering the trajectories in the r – ns plane from the Planck data, we find the constraints on the parameter space in our model.