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nism cannot produce the dominant contribution to the observed primordial curvature perturbation within this Thermal Inflation model as it currently stands. 

## 4.5 Modulated Decay Rate 

Now we investigate the modulated decay scenario to see if it can produce the dominant contribution to the primordial curvature perturbation ζ . As in Section 4.4, we aim to obtain a number of constraints on the model param- eters and the initial conditions for the fields. Considering these constraints, we intend to determine the available parameter space (if any). In this pa- rameter space we will calculate distinct observational signatures (such as 

