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Muons of very and ultra-high energy cosmic rays

  • Proceedings of the 32nd All-Russia Conference on Cosmic Rays (Moscow, July 2012)
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope


In many cosmic rays experiments at very and ultra-high energies, an excess of muons (including those of very high energy, >100 TeV) is observed that cannot be explained within existing models of hadron interactions. This excess is usually explained in terms of the heavier mass composition of primary cosmic rays. However, the excess over the predicted values even for extremely heavy compositions, and especially the observed excesses of muons with energies of >100 TeV, requires that we consider other possibilities with respect to the generation of muons, including changes in models of hadron interaction.

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Correspondence to A. G. Bogdanov.

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Original Russian Text © A.G. Bogdanov, R.P. Kokoulin, A.A. Petrukhin, 2013, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2013, Vol. 77, No. 11, pp. 1580–1583.

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Bogdanov, A.G., Kokoulin, R.P. & Petrukhin, A.A. Muons of very and ultra-high energy cosmic rays. Bull. Russ. Acad. Sci. Phys. 77, 1322–1325 (2013).

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