Neutralino spectrum in top-down models of UHECR

Alejandro Ibarra, Ramon Toldrà

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We calculate the cosmic ray spectrum of ultra high energy neutralinos that one should expect provided that the observed ultra high energy cosmic rays are produced by the decay of superheavy particles X, MX > 10 12 GeV, in supersymmetric models. Our calculation uses an extended DGLAP formalism. Forthcoming cosmic ray observatories should be able to detect these neutralinos.

Original languageEnglish
Pages (from-to)101-111
Number of pages11
JournalJournal of High Energy Physics
Issue number6
StatePublished - 1 Jun 2002
Externally publishedYes


  • High Energy Cosmic Rays
  • QCD
  • Supersymmetric Standard Model


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