Preheating and reheating constraints in supersymmetric braneworld inflation
Physics and Quantum Technology Team, LPMC, Ben M’sik Faculty of Sciences, Casablanca Hassan II University, Casablanca, Morocco
2 LPHE-MS Laboratory Department of Physics, Faculty of Science, Mohammed V University in Rabat, Rabat, Morocco
Accepted: 19 August 2021
Published online: 28 August 2021
We study the evolution of the Universe at early stages; we discuss also preheating in the framework of hybrid braneworld inflation by setting conditions on the coupling constants and g for effective production of -particles. Considering the phase between the time observable CMB scales crossed the horizon and the present time, we write reheating and preheating parameters , and in terms of the scalar spectral index and prove that, unlike the reheating case, the preheating duration does not depend on the values of the equation of state . We apply the slow-roll approximation in the high energy limit to constrain the parameters of D-term hybrid potential. We show also that some inflationary parameters, in particular, the spectral index demand that the potential parameter is bounded as to be consistent with Planck’s data, while the ratio r is in agreement with observation for considering high inflationary e-folds. We also propose an investigation of the brane tension effect on the reheating temperature. Comparing our results to recent CMB measurements, we study preheating and reheating parameters , and in the Hybrid D-term inflation model in the range and conclude that and require , while for the condition must be satisfied, to be compatible with Planck’s results.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021. corrected publication