One-loop correction to the enhanced curvature perturbation with local-type non-Gaussianity for the formation of primordial black holes

  title={One-loop correction to the enhanced curvature perturbation with local-type non-Gaussianity for the formation of primordial black holes},
  author={De-Shuang Meng and Chengchao Yuan and Qing Guo Huang},
  journal={Physical Review D},
As one of the promising candidates of cold dark matter (DM), primordial black holes (PBHs) were formed due to the collapse of over-densed regions generated by the enhanced curvature perturbations during the radiation-dominated era. The enhanced curvature perturbations are expected to be non-Gaussian in some relevant inflation models and hence the higher-order loop corrections to the curvature power spectrum might be non-negligible as well as altering the abundance of PBHs. In this paper, we… 

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