| Full text | |
| Author(s): |
van Vliet, Arjen
;
Batist, Rafael Alves
;
Horandel, Jorg R.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW D; v. 100, n. 2, p. 5-pg., 2019-07-17. |
| Abstract | |
Cosmogenic neutrinos are produced when ultrahigh-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 greater than or similar to 30 EeV, thereby providing bounds 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. (AU) | |
| FAPESP's process: | 17/12828-4 - Diffusion, acceleration and propagation of cosmic rays in turbulent astrophysical environments |
| Grantee: | Rafael Alves Batista |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |