2002/05/21 by Cyrille Barbot, C. Barbot, Manuel Drees +4 · 37 citations
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #COSMIC cancer database #Cosmic neutrino background #Cosmic ray #Dark Matter and Cosmic Phenomena #Flux (metallurgy) #Gamma ray #Neutrino #Neutrino Physics Research #Neutrino detector #Neutrino oscillation #Nuclear physics #Optics #Photon #Physics #Proton #astro-ph #hep-ph
paper · pdf · doi:10.1016/s0370-2693(03)00039-x
published in Physics Letters B 555(1-2), 22-32 (Elsevier BV) · 16 pages, 4 figures
arxiv created 2002/05/21 · openalex publication_date 2003/02/01 · arxiv updated 2014/11/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Top–down models of cosmic rays produce more neutrinos than photons and more photons than protons. In these models, we reevaluate the fluxes of neutrinos associated with the highest energy cosmic rays in light of mounting evidence that they are protons and not gamma rays. While proton dominance at EeV energies can possibly be achieved by efficient absorption of the dominant high-energy photon flux on universal and galactic photon and magnetic background fields, we show that the associated neutrino flux is inevitably increased to a level where it might be within reach of operating experiments such as AMANDA II, RICE and AGASA. In future neutrino telescopes, tens to a hundred, rather than a few neutrinos per kilometer squared per year, may be detected above 100 TeV.