Non-Gaussianity from Particle Production during Inflation

Figure 12

(a) shows a sample multiple-bump distortion with amplitude 𝐴_IR=1×10⁻⁹ which corresponds to 𝑔²∼0.02. The feature spacing is Δ=0.75. We take the vanilla parameters to be 𝐴_𝑠=1.04×10⁻⁹, 𝑛_𝑠=0.93 so that the scale of inflation is slightly lower than in the standard scenario and the spectral tilt is slightly redder. (b) shows the CMB angular TT power spectrum for this example.

(a)

(b)