GZK photons as UHECR above 10$^{19}$ eV

Details GZK photons as UHECR above 10$^{19}$ eV GZK photons as UHECR above 10$^{19}$ eV

2005-12-20

arxiv.org/abs/hep-ph/0512267v1

J.Phys.Conf.Ser. 39 (2006) 419-421

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at TAUP2005, Sept. 10-14 2005, Zaragoza (Spain); 3 pages, 2 figures

Scientific paper

10.1088/1742-6596/39/1/108

"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.

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