• Corpus ID: 253265051

Primordial non-gaussianity up to all orders: theoretical aspects and implications for primordial black hole models

  title={Primordial non-gaussianity up to all orders: theoretical aspects and implications for primordial black hole models},
  author={Giacomo Ferrante and Gabriele Franciolini and Antonio Iovino and Alfredo Urbano},
We develop an exact formalism for the computation of the abundance of primordial black holes (PBHs) in the presence of local non-gaussianity (NG) in the curvature perturbation field. For the first time, we include NG going beyond the widely used quadratic and cubic approximations, and consider a completely generic functional form. Adopting threshold statistics of the compaction function, we address the computation of the abundance both for narrow and broad power spectra. While our formulas are… 
3 Citations

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Same as in fig. 13 but with the center of the power series expansion that is now set by ζG = 0.5 (see text for details

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