Primordial Black Holes from No-Scale Supergravity
Cosmology and Nongalactic Astrophysics
2020-11-04 v2 High Energy Astrophysical Phenomena
High Energy Physics - Phenomenology
High Energy Physics - Theory
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 , the tensor-to-scalar ratio , and to produce up to of the dark matter of the Universe in the form of primordial black holes.
Cite
@article{arxiv.2008.01457,
title = {Primordial Black Holes from No-Scale Supergravity},
author = {Dimitri V. Nanopoulos and Vassilis C. Spanos and Ioanna D. Stamou},
journal= {arXiv preprint arXiv:2008.01457},
year = {2020}
}
Comments
23 pages, latex, 8 figures, published version in PRD