On the generation of UHECRs in GRBs: a reappraisal

  title={On the generation of UHECRs in GRBs: a reappraisal},
  author={Mario Vietri and Daniel De Marco and Dafne Guetta},
  journal={arXiv: Astrophysics},
We re-examine critically the arguments raised against the theory that Ultra High Energy Cosmic Rays observed at Earth are produced in Gamma Ray Bursts. These include the limitations to the highest energy attainable by protons around the bursts' shocks, the spectral slope at the highest energies, the total energy released in non--thermal particles, the occurrence of doublets and triplets in the data reported by AGASA. We show that, to within the uncertainties in our current knowledge of GRBs… 

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