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Galactic Cosmic Rays from PBHs and Primordial Spectra with a Scale
A. Barrau, D. Blais, G. Boudoul +1
We consider the observational constraints from the detection of antiprotons in the Galaxy on the amount of Primordial Black Holes (PBH) produced from primordial power spectra with…
Accurate results for primordial black holes from spectra with a distinguished scale
David Blais, Torsten Bringmann, Claus Kiefer +1
We perform an accurate computation of the production rate for primordial black holes (PBHs). The reason is that the underlying mass variance had been overestimated systematically,…
Can Primordial Black Holes be a Significant Part of Dark Matter ?
David Blais, Claus Kiefer, David Polarski
The computation of PBH (primordial black hole) production from primordial perturbations has recently been improved by considering a more accurate relation between the primordial po…
Primordial Black Holes in an Accelerating Universe
David Polarski
General expressions are given for the generation of Primordial Black Holes (PBH) in a universe with a presently accelerated expansion due to a(n effective) cosmological constant. W…