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Antiprotons from primordial black holes
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Primordial black holes (PBHs) have motivated many studies since it was shown that they should evaporate and produce all kinds of particles. Recent experimental measurements of cosmic rays with great accuracy, theoretical investigations on the possible formation mechanisms and detailed evaporation processes have revived the interest in such astrophysical objects. This article aims at using the latest developments on antiproton propagation models together with new data from BESS, CAPRICE and AMS experiments to constrain the local amount of PBH dark matter. Depending on the diffusion halo parameters and on the details of emission mechanism, we derive an average upper limit of the order of rho < 1.7E-33 g cm^-3.
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Cited by 2 Pith papers
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Antinuclei from Primordial Black Holes
AMS-02 antiproton data set the tightest limits yet on Galactic primordial black holes with lognormal mass distributions, and cap the expected antideuteron flux below the reach of upcoming detectors.
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Constraints on Primordial Black Holes from Galactic Diffuse Synchrotron Emissions
Galactic synchrotron emissions above 20 MHz can set tighter upper limits on the abundance of primordial black holes with masses above 10^16 grams than previous cosmic-ray electron data.
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