4.5 Modulated Decay Rate 102 Fig. 4.16: Prediction of the model for n$_{s}$ for $^{φ}$∗ Case C with primordial inflation being Chaotic Inflation, with α =1 , Γ$_{ϕ}$ ≪ H$_{T I}$ , m$_{ψ}$ =10 − 2 GeV and the parameter values from Table 4.2. (A plot of Eq. (4.185), with $^{φ}$∗ = 0 , m = m$_{0}$ and Γ = g $^{2}$m$_{0}$ .) The Blue and Red lines are the central value and lower/upper bounds of n$_{s}$ respectively as obtained by the Planck spacecraft [40]. Therefore we obtain the primordial curvature perturbation as This is of the same order of magnitude as the primordial curvature pertur- bation that is produced by the “end of inflation” mechanism, Eqs. (4.59) and (4.63). As with the “end of inflation” mechanism scenario, we will consider what is termed local non-Gaussianity, which for the bispectrum corresponds to the “squeezed” configuration of the momenta triangle, in that the magnitude of 4.5.1 Non-Gaussianity ζ = δN ∼ − δm m (4.198) 10 2 10 4 10 6 10 8 m 0 ( GeV ) 0.96 0.97 0.98 0.99 1.00 1.01 1.02 n$_{s}$