Astrophysical neutrino production and impact of associated uncertainties in photo-hadronic interactions of UHECRs
arXiv:1809.10259 · doi:10.1051/epjconf/201920804002
Abstract
High energy neutrinos can be produced by interactions of ultra-high energy cosmic rays (UHECRs) in the dense radiation fields of their sources as well as off the cosmic backgrounds when they propagate through the universe. Multi-messenger interpretations of current measurements deeply rely on the understanding of these interactions. In order to efficiently produce neutrinos in the sources of UHECRs, at least a moderate level of interactions is needed, which means that a nuclear cascade develops if nuclei are involved. On the other hand, the available cross-section data and interaction models turn out to make poor predictions for most nuclei heavier than protons. We show the impact of these uncertainties in state-of-the-art photo-disintegration models and motivate nuclear cross-section measurements. Further, we discuss extensions for photo-meson models currently used in astrophysics and demonstrate the importance of understanding the details of UHECR interaction with the Glashow resonance.
arXiv commentinvited talk presented at ISVHECRI 2018, submitted for publication to EPJ Web of Conferences
References in corpus (11)
- The Physics of Gamma-Ray Bursts
- Towards a More Complete and Accurate Experimental Nuclear Reaction Data Library (EXFOR): International Collaboration Between Nuclear Reaction Data Centres (NRDC)
- Monte-Carlo simulations of photohadronic processes in astrophysics
- Neutrinos From Individual Gamma-Ray Bursts in the BATSE Catalog
- CRPropa 2.0 -- a Public Framework for Propagating High Energy Nuclei, Secondary Gamma Rays and Neutrinos
- Cosmic-Ray and Neutrino Emission from Gamma-Ray Bursts with a Nuclear Cascade
- Tidally disrupted stars as a possible origin of both cosmic rays and neutrinos at the highest energies
- Effects of uncertainties in simulations of extragalactic UHECR propagation, using CRPropa and SimProp
- Neutrinos and Ultra-High-Energy Cosmic-Ray Nuclei from Blazars
- Nuclear Physics Meets the Sources of the Ultra-High Energy Cosmic Rays
- Astrophysical Neutrino Production Diagnostics with the Glashow Resonance