Determining the fraction of cosmic-ray protons at ultra-high energies with cosmogenic neutrinos
| Autor: | Arjen van Vliet, Rafael Alves Batista, Jörg R. Hörandel |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Astronomy
Astrophysics::High Energy Astrophysical Phenomena Hadron photon pi Cosmic background radiation UHE [cosmic radiation] FOS: Physical sciences burst [gamma ray] Cosmic ray primary [cosmic radiation] Astrophysics cosmic background radiation power spectrum 7. Clean energy 01 natural sciences Luminosity IceCube cosmic radiation [p] formation [star] 0103 physical sciences ddc:530 luminosity AGN detector [neutrino] 010303 astronomy & astrophysics Physics High Energy Astrophysical Phenomena (astro-ph.HE) 010308 nuclear & particles physics model [interaction] photon Astrophysics::Instrumentation and Methods for Astrophysics Spectral density flux [neutrino] Auger Neutrino detector 13. Climate action current [neutrino] ARIANNA High Energy Physics::Experiment Neutrino Gamma-ray burst Astrophysics - High Energy Astrophysical Phenomena |
| Zdroj: | Physical Review D Physical review / D 100(2), 021302 (2019). doi:10.1103/PhysRevD.100.021302 Physical Review D, 100, 2, pp. 1-5 Physical Review D, 100, 1-5 |
| ISSN: | 1824-8039 2470-0010 |
| DOI: | 10.3204/PUBDB-2019-02564 |
| Popis: | Cosmogenic neutrinos are produced when ultra-high-energy cosmic rays (UHECRs) interact with cosmological photon fields. Limits on the diffuse flux of these neutrinos can be used to constrain the fraction of protons arriving at Earth with energies $E_{p} \gtrsim 30$ EeV, thereby providing constraints on the composition of UHECRs without fully relying on hadronic interaction models. We show to which extent current neutrino telescopes already constrain this fraction of protons and discuss the prospects for next-generation detectors to further constrain it. Additionally, we discuss the implications of these limits for several popular candidates for UHECR source classes. 5 pages, 2 figures, 1 table; Published in PRD, updated to match published version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|