Gamma-ray families with halos: Main characteristics and possibilities of using them to estimate the p+He fraction in the mass composition of cosmic rays at energies 1–100 PeV

Borisov A.S.; Denisova V.G.; Guseva Z.M.; Kanevskaya E.A.; Pyatovsky S.E.; Kogan M.G.; Morozov A.E.; Mukhamedshin R.A.; Puchkov V.S.; Shaulov S.B.; Shoziyoev G.P.; Smirnova M.D.

doi:10.1051/epjconf/201614519008

EPJ Web of Conferences (Jan 2017)

Gamma-ray families with halos: Main characteristics and possibilities of using them to estimate the p+He fraction in the mass composition of cosmic rays at energies 1–100 PeV

Borisov A.S.,
Denisova V.G.,
Guseva Z.M.,
Kanevskaya E.A.,
Pyatovsky S.E.,
Kogan M.G.,
Morozov A.E.,
Mukhamedshin R.A.,
Puchkov V.S.,
Shaulov S.B.,
Shoziyoev G.P.,
Smirnova M.D.

Affiliations

Borisov A.S.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Denisova V.G.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Guseva Z.M.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Kanevskaya E.A.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Pyatovsky S.E.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Kogan M.G.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Morozov A.E.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Mukhamedshin R.A.: Institute for Nuclear Research, Russian Academy of Sciences
Puchkov V.S.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Shaulov S.B.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Shoziyoev G.P.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Smirnova M.D.: P.N. Lebedev Physical Institute of the Russian Academy of Sciences

DOI: https://doi.org/10.1051/epjconf/201614519008
Journal volume & issue: Vol. 145
p. 19008

Abstract

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Characteristics of γ-ray families with halos (XREC, Pamir) and data of experiments with EAS are analyzed to estimate the proton and helium (p+He) fractions in the primary cosmic radiation at E0 = 1–100 PeV. It is shown that at energies E0 ∼ 1–100 PeV the fraction of p+He remains significant, namely, the fraction of p+He is near 40% at E0 = 10 PeV.

Published in EPJ Web of Conferences

ISSN: 2100-014X (Online)
Publisher: EDP Sciences
Country of publisher: France
LCC subjects: Science: Physics
Website: http://www.epj-conferences.org/

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