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Primordial Black Holes from No-Scale Supergravity

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arxiv 2008.01457 v2 pith:OXUR46EM submitted 2020-08-04 astro-ph.CO astro-ph.HEhep-phhep-th

classification astro-ph.COastro-ph.HEhep-phhep-th
keywords blackprimordialcontextholesmodelno-scalesupergravityable
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We calculate the primordial black hole abundance in the context of a Wess-Zumino type no-scale supergravity model. We modify the K\"ahler potential, by adding an extra exponential term. Using just one parameter in the context of this model, we are able to satisfy the Planck cosmological constraints for the spectral index $n_s$, the tensor-to-scalar ratio $r$, and to produce up to $\sim 20\%$ of the dark matter of the Universe in the form of primordial black holes.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. How deep is the dip and how tall are the wiggles in inflationary power spectra?

    astro-ph.CO 2025-01 conditional novelty 7.0 of 10

    In single-field PBH inflation models, a power-spectrum dip appears precisely when the inflaton velocity does not flip sign, and the peak amplitude scales as the inverse square of the dip amplitude.

  2. Reconstructing Primordial Curvature Perturbations via Scalar-Induced Gravitational Waves with LISA

    astro-ph.CO 2025-01 conditional novelty 6.0 of 10

    LISA can reconstruct the primordial curvature power spectrum from scalar-induced gravitational waves, with percent-level precision near the peak and Bayesian tests separating SIGWs from other sources.

  3. Aspects of supersymmetry breaking driven inflation in orbifold models

    hep-th 2024-12 conditional novelty 5.0 of 10

    In orbifold supergravity inflation, enhanced scalar power spectra needed for primordial black holes force the tensor-to-scalar ratio above current observational limits.

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