Double pair production by ultra-high-energy cosmic ray photons

被引:0
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作者
S. V. Demidov
O. E. Kalashev
机构
[1] Russian Academy of Sciences,Institute for Nuclear Research
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13.85.Tp; 96.50.sh; 96.50.sb;
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摘要
Using the CompHEP package, we provide a detailed estimate of the influence of double e+e− pair production (DPP) by photons on the propagation of ultra-high-energy electromagnetic cascades. We show that in the models where the cosmic ray photon energy reaches a few 103 EeV, a refined DPP analysis may lead to a substantial difference in the predicted photon spectrum compared to the previous rough estimates.
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页码:764 / 769
页数:5
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