53
520
521
523
524
52-1
52-6
41.00
29.35
29.31
29.33
29.27
29.05
03.06.01
03.05.01
03.04.03
2
223
614
6135
SCI004000
SCI005000
The interaction of the cosmological gamma-ray background photons with soft cosmological background with producing electron-positron pairs is considered. It is shown that the majority of positrons are produced with energies of 10 Gev - 1 TeV. However, the interaction of ``X-ray" cosmological background photons may produce the positrons with energies of 10-100 keV.
cosmology: cosmic background radiation; positrons
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