Title: Perturbation, Non-Gaussianity and Reheating in a GB-$α$-Attractor Model,
Abstract: Motivated by $\alpha$-attractor models, in this paper we consider a
Gauss-Bonnet inflation with E-model type of potential. We consider the
Gauss-Bonnet coupling function to be the same as the E-model potential. In the
small $\alpha$ limit we obtain an attractor at $r=0$ as expected, and in the
large $\alpha$ limit we recover the Gauss-Bonnet model with potential and
coupling function of the form $\phi^{2n}$. We study perturbations and
non-Gaussianity in this setup and we find some constraints on the model's
parameters in comparison with PLANCK datasets. We study also the reheating
epoch after inflation in this setup. For this purpose, we seek the number of
e-folds and temperature during reheating epoch. These quantities depend on the
model's parameter and the effective equation of state of the dominating energy
density in the reheating era. We find some observational constraints on these
parameters.