Cosmic rays and neutrinos from GRBs: Predictions versus acceleration modeling
Feb, 2003Citations per year
Abstract: (arXiv)
The paper is devoted to the analysis of Fermi acceleration of protons in GRBs and its neutrino signature. We have compared the consequences of Bohm scaling and those of a Kolmogorov scaling, the latter being more reliable. The predictions about the energy limitation of UHE-protons by the various losses and the neutrino emissions turn out to be very sensitive to these scalings. We consider Kolmogorov scaling as the most realistic and predict a reasonable pp-neutrino emission around 100 GeV at the end of the radiative stage of the fireball expansion, for a large number of GRBs pending on their baryonic load. A second p-neutrino emission is expected with the acceleration of protons in the radiation free stage, but with a synchrotron loss limitation immediately followed by a severe expansion loss limitation. According to the Kolmogorov scaling, the protons could not reach the UHE-range. Anyway the large possibility of a two component neutrino emission would be an interesting clue of cosmic ray physics.Note:
- 23 pages, 1 figure Journal-ref: Astroparticle Physics, 2003, volume 20, issue 3, 323
- p: cosmic radiation
- neutrino: cosmic radiation
- cosmic radiation: particle source
- gamma ray: burst
- p: acceleration
- scaling
- p p: interaction
- pi: hadroproduction
- neutrino: emission
- photon p: interaction
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