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- W1636549968 abstract "We calculated the energy spectra and the fluxes of electron neutrinos in extragalactic space emitted in the process of the evaporation of primordial black holes (PBHs) in the early universe. It was assumed that PBHs are formed by a blue power-law spectrum of primordial density fluctuations. In the calculations of neutrino spectra the spectral index of density fluctuations and the reheating temperature were used as free parameters. The absorption of neutrinos during propagation in the space was taken into account. We obtained the bounds on the spectral index assuming validity of the standard picture of gravitational collapse and using the available data of several experiments with atmospheric and solar neutrinos. The comparison of our results with the previous constraints (which had been obtained using diffuse photon background data) shows that such bounds are quite sensitive to an assumed form of the initial PBH mass function." @default.
- W1636549968 created "2016-06-24" @default.
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- W1636549968 date "2001-03-16" @default.
- W1636549968 modified "2023-09-27" @default.
- W1636549968 title "Extragalactic neutrino background from PBHs evaporation" @default.
- W1636549968 hasPublicationYear "2001" @default.
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