Edgar Bugaev, Peter Klimai
We consider the mixed inflaton-curvaton model in which quantum fluctuations of the curvaton field during inflation lead to a relatively large curvature perturbation spectrum at small scales. The predicted spectrum is characterized by the large positive tilt and the non-Gaussianity of the perturbations is also large. We obtained the constraints on the model parameters considering the process of primordial black hole (PBH) production in radiation era. The dependence of the produced PBH's mass on model parameters is studied, as well as the form of predicted PBH mass spectra.
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http://arxiv.org/abs/1212.6529
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