Double Pair Production by Ultra High Energy Cosmic Ray Photons
نویسندگان
چکیده
Using CompHEP package we’ve made the detailed estimate of the influence of double ee pair production (DPP) by photons on the propagation of ultra high energy electromagnetic (EM) cascade. We show that in the models in which cosmic ray photons energy reaches few×103 EeV refined DPP analysis may lead to substantial difference in predicted photon spectrum compared to previous rough estimates.
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