http://arxiv.org/abs/2104.10552
In this paper, we study the preheating duration modeled by an e-folding number $N_{\rm pre}$ and an effective equation-of-state parameter $\omega_{\rm pre}$. We show that a preheating equation-of-state parameter $\omega_{\rm pre} = 0$ implies more post-inflationary e-folds of expansion. Considering the Higgs and polynomial potentials, we conclude that the chaotic and the Higgs models show good compatibility with the observational data according to the Planck 2018 results.
K. Bourakadi
Thu, 22 Apr 2021
3/44
Comments: N/A