Galactic Cosmic Rays from PBHs and Primordial Spectra with a Scale
Astrophysics
2009-11-07 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
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 a bumpy mass variance. Though essentially equivalent at the present time to the constraints from the diffuse -ray background, they allow a widely independent approach and they should improve sensibly in the nearby future. We discuss the resulting constraints on inflationary parameters using a Broken Scale Invariance (BSI) model as a concrete example.
Cite
@article{arxiv.astro-ph/0210149,
title = {Galactic Cosmic Rays from PBHs and Primordial Spectra with a Scale},
author = {A. Barrau and D. Blais and G. Boudoul and D. Polarski},
journal= {arXiv preprint arXiv:astro-ph/0210149},
year = {2009}
}
Comments
10 pages, 3 figures Version accepted in Phys. Lett. B, conclusions unchanged