COMPTON SCATTERING OF COSMIC GAMMA RADIATION BY ELECTRONS IN THE EARTH'S RADIATION BELTS
https://doi.org/10.26583/vestnik.2023.273
EDN: EEOPLL
Abstract
According to the PAMELA experiment, precipitation of electrons from the Earth's radiation belt was detected at the moments of recording gamma-ray bursts of extraterrestrial origin, which gives rise to a hypothesis about the relationship of these phenomena. The work provides estimates of the number of electrons that have experienced interaction with gamma quanta through the Compton effect and have changed their energy and trajectories in the so-called approximation. «toy model» A formula has been obtained for determining the cross section for the interaction of a gamma quantum and a stationary electron depending on the electron emission angle and the energy spectrum of the emitted electrons. In the energy distribution of secondary electrons, a narrow peak is observed near the maximum energy, which is close to the energy of the initial gamma quantum. An estimate of the upper limit for the contribution of the process under consideration to the excess of the electron count rate over the background value recorded in the PAMELA experiment was carried out. It was found that the proposed mechanism does not explain the observed effect; the calculated electron count rate is several orders of magnitude lower, which is explained by the small Compton scattering cross section.
Supporting agencies: The study was supported by the Russian Science Foundation grant No. 19-72-10161, https://rscf.ru/project/19-72-10161/
About the Authors
D. N. Morozova
National Research Nuclear University «MEPhI»
Russian Federation
Russian Federation
A. V. Kuznetsov
Yaroslavl State University named after P.G. Demidov
Russian Federation
Russian Federation
A. G. Mayorov
National Research Nuclear University «MEPhI»
Russian Federation
Russian Federation
K. S. Chelidze
National Research Nuclear University «MEPhI»
Russian Federation
Russian Federation
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For citations:
Morozova D.N., Kuznetsov A.V., Mayorov A.G., Chelidze K.S. COMPTON SCATTERING OF COSMIC GAMMA RADIATION BY ELECTRONS IN THE EARTH'S RADIATION BELTS. Vestnik natsional'nogo issledovatel'skogo yadernogo universiteta "MIFI". 2023;12(5):262-267. (In Russ.) https://doi.org/10.26583/vestnik.2023.273. EDN: EEOPLL
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