"Signature" neutrinos from photon sources at high redshift
Astrophysics
2009-10-31 v1 High Energy Physics - Phenomenology
Abstract
The temperature of the cosmic microwave background increases with redshift; at sufficiently high redshift it becomes possible for ultrahigh-energy photons and electrons to produce muons and pions through interactions with background photons. At the same time, energy losses due to interactions with radio background and intergalactic magnetic fields are negligible. The energetic muons and pions decay, yielding a flux of ``signature'' neutrinos with energies eV. Detection of these neutrinos can help understand the origin of ultrahigh-energy cosmic rays.
Cite
@article{arxiv.astro-ph/0012279,
title = {"Signature" neutrinos from photon sources at high redshift},
author = {Marieke Postma},
journal= {arXiv preprint arXiv:astro-ph/0012279},
year = {2009}
}
Comments
5 pages; talk presented at First International Workshop on Radio Detection of High-Energy Particles (RADHEP-2000), UCLA, Los Angeles November 16-18, 2000