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Estimation of the Fragmentation Effect in the Registration of Superheavy Nuclei of Galactic Cosmic Rays in Pallasites

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Abstract

We report on the results of model calculations for estimating the fragmentation effect in the registration of heavy and superheavy nuclei of galactic cosmic rays in olivine crystals from pallasite at the Marjalahti and Eagle Station. The measurement of fluxes and spectra of heavy and superheavy nuclei in cosmic rays is a sensitive method for studying the composition and possible sources of cosmic rays, the processes occurring in the sources themselves and in the interstellar medium, and forms the basis for constructing models of cosmic ray confinement in the Galaxy. The database obtained in the OLIMPIYA experiment, which includes characteristics of 21743 tracks, is the largest database for charges Z > 55 at present. The estimates of fragmentation of nuclei in pallasites, which have been obtained based on model calculations, show that the effect of this process on the resulting charge spectrum is insignificant.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, 119991, Moscow, Russia

    P. A. Babaev, A. V. Bagulya, A. E. Volkov, S. A. Gorbunov, G. V. Kalinina, N. S. Konovalova, N. M. Okateva, N. G. Polukhina, Zh. T. Sadykov, N. I. Starkov, E. N. Starkova, Than Naing Soe, M. M. Chernyavskiy & T. V. Shchedrina

  2. Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, 141980, Dubna, Moscow oblast, Russia

    A. E. Volkov

  3. National Research Center “Kurchatov Institute”, 123182, Moscow, Russia

    A. E. Volkov

  4. National Research Institute of Science and Technology “MISIS”, 119049, Moscow, Russia

    N. S. Konovalova, N. M. Okateva, N. G. Polukhina, Zh. T. Sadykov, N. I. Starkov & T. V. Shchedrina

  5. National Research Nuclear University “MEPHI”, 115409, Moscow, Russia

    N. G. Polukhina

Authors
  1. P. A. Babaev
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  2. A. V. Bagulya
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  3. A. E. Volkov
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  4. S. A. Gorbunov
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  5. G. V. Kalinina
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  6. N. S. Konovalova
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  7. N. M. Okateva
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  8. N. G. Polukhina
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  9. Zh. T. Sadykov
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  10. N. I. Starkov
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  11. E. N. Starkova
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  12. Than Naing Soe
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  13. M. M. Chernyavskiy
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  14. T. V. Shchedrina
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Corresponding author

Correspondence to N. M. Okateva.

Additional information

This article was written for the special issue of JETP dedicated to the centenary of A.E. Chudakov

Translated by N. Wadhwa

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Babaev, P.A., Bagulya, A.V., Volkov, A.E. et al. Estimation of the Fragmentation Effect in the Registration of Superheavy Nuclei of Galactic Cosmic Rays in Pallasites. J. Exp. Theor. Phys. 134, 523–527 (2022). https://doi.org/10.1134/S106377612204015X

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  • DOI: https://doi.org/10.1134/S106377612204015X

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