61 citations · 498 across the 30 of their papers we have counts for
1 paper · 2 filters
John Ellis, V. E. Mayes, D. V. Nanopoulos
We calculate the spectra of ultra-high-energy cosmic rays (UHECRs) in an explicit top-down model based on the decays of metastable neutral `crypton' states in a flipped SU(5) strin…