Eur. Phys. J. Plus (2016) 131: 162
https://doi.org/10.1140/epjp/i2016-16162-y

Regular Article

A new large field inflation constrained by Planck 2015

¹ Laboratoire de Physique de la Matière Condensée (URAC10), Equipe Physique Quantique et Applications, Faculté des Sciences Ben M’sik, Université Hassan II, B.P. 7955, Casablanca, Morocco
² Equipe de Recherche Subatomique et Applications, Faculté des Sciences Ben M’sik, Université Hassan II, B.P. 7955, Casablanca, Morocco
³ Centre of Physics and Mathematics, CPM, Rabat, Morocco

^* e-mail: ferrichaalami@yahoo.fr

Received: 23 February 2016
Accepted: 18 April 2016
Published online: 24 May 2016

Abstract

In this work we propose a new large field inflation model, parametrized by a parameter sharing the same features with T-Model. We apply the slow-roll approximation to investigate the inflationary parameters, and we found that they depend on some value of and the e-folds number Ne. In this context, we have computed and discussed the perturbation of the scalar curvature and determined the energy scale , which we found to be in the GUT regime. We also showed that, in our scenario, the various inflationary spectrum perturbation parameters, the spectral index , the ratio of tensor to scalar perturbations r and the running , perfectly agree with the recent experimental observations in the event and . As a result we have reproduced successfully the main part, , consistent with Planck data.