Reheating constraints to supersymmetry flat direction inflation

Abstract

In this work, we investigate constraints on the reheating era within the framework of supersymmetry flat direction inflation. We express the e-folding number during reheating Nre and the final reheating temperature Tre as functions of the scalar spectral index ns, and compare the numerical results with current bounds given by the Planck 2015 data (Planck Collab. Astron. Astrophys. 594, A20 (2016). doi: 10.1051/0004-6361/201525898 ). Moreover, we express the inflationary observable quantities in terms of the duration of reheating Nre and the effective equation-of-state parameter of the reheating fluid ωre, and constrain the reheating processes in the Nre–ωre plane.