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The influence of quarks and gluons jets coming from primordial black holes on the reionization of the Universe

Marina Gibilisco
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Abstract

The quantum evaporation of primordial black holes may have a relevant effect on the reionization of the Universe at small redshifts ($z \leq 60$): in this paper, I studied the possibility of a reionization induced by the photons emitted during the last stages of the black holes life. I also took into account the quark and gluons jets production, that sensibly modifies the blackbody Hawking emission spectrum. In this way, one obtains a ``late and sudden'' reionization process, characterised by a very well controlled rise of the plasma temperature: the plasma heating is not so high to induce a strong distortion of the CBR spectrum, in agreement with the recent FIRAS upper limit on the comptonization parameter.

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Marina Gibilisco. 1996-04-19. The influence of quarks and gluons jets coming from primordial black holes on the reionization of the Universe. https://doi.org/10.1142/s0217751x97002280

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