Email this article γ-families with halos observed by X-ray emulsion chamber in EAS and the estimate of the p+He fraction in primary cosmic rays at E0 = 1–100 PeV
- Authors: Mukhamedshin R.A.1, Puchkov V.S.2, Pyatovsky S.E.2, Shaulov S.B.2
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Affiliations:
- Institute for Nuclear Research
- Lebedev Physical Institute
- Issue: Vol 44, No 12 (2017)
- Pages: 380-384
- Section: Article
- URL: https://journals.rcsi.science/1068-3356/article/view/228532
- DOI: https://doi.org/10.3103/S1068335617120090
- ID: 228532
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Abstract
The experimental γ-families in which events called “halos” were detected using X-ray emulsion chambers (XRECs) of the PAMIR experiment are described. The halo nature is explained within the standard model of nuclear interactions. Based on events with halo, the fraction of p+He in primary cosmic rays (PCR) was estimated. It is shown that the PCR mass composition remains mixed in the range E0 = 1–100 PeV.
About the authors
R. A. Mukhamedshin
Institute for Nuclear Research
Email: sep@lebedev.ru
Russian Federation, pr. 60-letiya Octyabrya 7a, Moscow, 117315
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
S. B. Shaulov
Lebedev Physical Institute
Email: sep@lebedev.ru
Russian Federation, Leninskii pr. 53, Moscow, 119991
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