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

被引：0
|
作者：
S. V. Demidov
O. E. Kalashev
机构：
[1] Russian Academy of Sciences,Institute for Nuclear Research
来源：
Journal of Experimental and Theoretical Physics | 2009年 / 108卷
关键词：
13.85.Tp; 96.50.sh; 96.50.sb;
D O I：
暂无
中图分类号：
学科分类号：
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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