Cosmic rays and cosmic strings

1992
3 pages
Published in:
  • Astropart.Phys. 1 (1992) 129-131

Citations per year

19931995199719992000137
Abstract: (Elsevier)
It has been suggested that the highest-energy cosmic rays might be protons resulting from collapsing cosmic strings in the Universe. We point out that this mechanism, although attractive, has important shortcomings, notably the fact that gamma rays produced along with the protons and those produced by the protons in their interactions with the cosmic background radiation generate cascades in the Universe and result in unacceptably high fluxes of cosmic gamma rays in the region of hundreds of MeV.
  • cosmic string
  • p: cosmic radiation
  • photon: cosmic radiation
  • cosmic radiation: energy spectrum
  • energy spectrum: cosmic radiation
  • cosmic radiation: flux
  • flux: cosmic radiation
  • grand unified theory
  • numerical calculations