Origin of Gamma-Ray Families Accompanied by Halos and Detected in Experiments with X-Ray Emulsion Chambers
- Authors: Puchkov V.S.1, Pyatovsky S.E.1
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Affiliations:
- Lebedev Physical Institute
- Issue: Vol 81, No 2 (2018)
- Pages: 222-230
- Section: Elementary Particles and Fields
- URL: https://journals.rcsi.science/1063-7788/article/view/194187
- DOI: https://doi.org/10.1134/S1063778818020151
- ID: 194187
Cite item
Abstract
The phenomenon of gamma-ray families featuring halos that is observed in an experiment with x-ray emulsion chambers (XREC) in the Pamir experiment and in other XREC experiments is explained. The experimental properties of halos are analyzed via a comparison with the results of their simulation. It is shown that gamma-ray families featuring halos are predominantly produced (more than 96% of them) by protons and heliumnuclei. This makes it possible to employ the experimental properties of halos to estimate the fraction of protons and helium nuclei in the mass composition of primary cosmic radiation.
About the authors
V. S. Puchkov
Lebedev Physical Institute
Email: sep@lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991
S. E. Pyatovsky
Lebedev Physical Institute
Author for correspondence.
Email: sep@lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991
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