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Inflationary model driven by a scalar field whose potential has a step in thesecond derivative with respect to the field is considered. For the best fitpotential parameter values, the 3-point function and the non-Gaussianityassociated with the featured model is calculated. We study the shape and scaledependence of the 3-point function. The distinctive feature of this model isits characteristic ringing behaviour of $f_{NL}$. We can see that theoscillations in $f_{NL}$ in this model last for a much longer range of kvalues, as compared to the previously studied models. In that sense, this modelis potentially distinguishable from models with other features in thepotential.

Ringing Non-Gaussianity from inflation with a step in the second derivative of the potential