4.4 “End of Inflation” Mechanism 89 Fig. 4.3: The allowed parameter space for $^{ψ}$∗ , with α =1 , Γ$_{ϕ}$ ≪ H$_{T I}$ and the parameter values of Table 4.2. The constraints on m$_{0}$ that are shown are the following: Green: Eq. (4.166) Blue: Eq. (4.94) Purple: Eq. (4.114) Fig. 4.4: The allowed parameter space for δψ$_{∗}$ ψ$_{∗}$ , with α =1 , Γ$_{ϕ}$ ≪ H$_{T I}$ and the parameter values of Table 4.2. The constraints on m$_{0}$ that are shown are the following: Green: Eq. (4.166) Blue: Eq. (4.94) Purple: Eq. (4.114) the Planck spacecraft [55]. From looking at Fig. 4.9, it may initially seem as if our predicted value for g$_{NL}$ for a thermal waterfall field mass value of 10 2 10 3 10 $_{4}$m 0 ( GeV ) 10 10 10 11 10 12 * ( GeV ) 10 2 10 3 10 $_{4}$m 0 ( GeV ) 10 - 4 10 - 3 10 - 2 δψ$_{*}$ ψ$_{*}$