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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2004, Volume 79, Issue 4, Pages 175–177
(Mi jetpl2227)
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This article is cited in 3 scientific papers (total in 3 papers)
GRAVITY, ASTROPHYSICS
Estimate of the mass composition of cosmic rays above $4\times 10^{19}$ eV
A. A. Mikhailov Shafer Institute of Cosmophysical Research and Aeronomy, Siberian Branch, Russian Academy of Sciences
Abstract:
The arrival directions of extensive air showers are analyzed on the basis of world data. It is found that the zenith-angle distributions for energies $E>10^{19}$ eV and $E>4\times 10^{19}$ eV differ from each other. According to our estimates, the SUGAR array detects no showers above $10^{20}$ eV. The mass composition of ultrahigh-energy cosmic rays is estimated. Cosmic rays with $E>4\times 10^{19}$ eV most likely consist of superheavy nuclei.
Received: 28.09.2003 Revised: 03.12.2003
Citation:
A. A. Mikhailov, “Estimate of the mass composition of cosmic rays above $4\times 10^{19}$ eV”, Pis'ma v Zh. Èksper. Teoret. Fiz., 79:4 (2004), 175–177; JETP Letters, 79:4 (2004), 141–143
Linking options:
https://www.mathnet.ru/eng/jetpl2227 https://www.mathnet.ru/eng/jetpl/v79/i4/p175
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