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Kourosh Nozari

Kourosh Nozari

Academic rank: Professor
ORCID: https://orcid.org/0000-0003-4368-5823
Education: PhD.
ScopusId: 9276301800
HIndex:
Faculty: Science
Address: Department of Theoretical Physics, Faculty of Basic Sciences, University of Mazandaran, P. O. Box 47416-95447, Babolsar, Iran
Phone: 01135302482

Research

Title
α-Attractors and reheating in a class of Galileon inflation
Type
JournalPaper
Keywords
Galileon inflation; α-attractor; E-model potential; reheating
Year
2021
Journal INTERNATIONAL JOURNAL OF MODERN PHYSICS D
DOI
Researchers Raheleh Shojaee ، Kourosh Nozari ، Farhad Darabi

Abstract

We study cosmological inflation in a Galileon inflationary model with the E-model potential to find possible α-attractors. First, we calculate evolution of the perturbations in our setup. By adopting E-model potential, we show that values of the scalar spectral index and tensor-to-scalar ratio are universal. Also, we consider the reheating phase after inflation in this model. We compare the results with the Planck data and we find some constraints on the model’s parameter space. We find that in a Galileon inflation model, the reheating phase can last longer than that in the Standard Model. Also, in this model, the larger range of temperature is corresponding to observational viable values of ns.