GZK photons as UHECR above 10$^{19}$ eV
High Energy Physics - Phenomenology
2009-11-11 v1
Abstract
"GZK photons" are produced by extragalactic nucleons through the resonant photoproduction of pions. We present the expected range of the GZK photon fraction of UHECR, assuming a particular UHECR spectrum and primary nucleons, and compare it with the minimal photon fraction predicted by Top-Down models.
Cite
@article{arxiv.hep-ph/0512267,
title = {GZK photons as UHECR above 10$^{19}$ eV},
author = {Graciela B. Gelmini},
journal= {arXiv preprint arXiv:hep-ph/0512267},
year = {2009}
}
Comments
Talk given at TAUP2005, Sept. 10-14 2005, Zaragoza (Spain); 3 pages, 2 figures