Energy Spectrum of primary Cosmic Rays according to the data of the Tunka-Grande scintillation array.

Budnev, Nikolai Mikhailovich; Ivanova, A.L.; Astapov, I.I.; Bezyazeekov, P.A.; Bulan, A.V.; Blinov, A. E.; Borodin, A.N.; Busygin, P.V.; Chiavassa, A.; Dyachok, A.N.; Gafarov, A.R.; Garmash, A.Yu.; Grebenyuk, V.M.; Gress, E.O.; Gress, O.A.; Gress, T.I.; Grinyuk, A.A.; Grishin, O.G.; Ivanova, A.D.; Iliushin, M.A.; Kabannik, I.A.; Kalmykov, N.N.; Kindin, V.V.; Kiryuhin, S.N.; Kompaniets, K.G.; Korosteleva, E.E.; Kozhin, V.A.; Kravchenko, E.A.; Kryukov, A.P.; Kuzmichev, L.A.; Lagutin, A.A.; Lavrova, M.V.; Lemeshev, Yu.E.; Lubsandorzhiev, B.K.; Lubsandorzhiev, N.B.; Lukanov, A.; Malakhov, S.D.; Mirgazov, R.R.; Monkhoev, R.D.; Okuneva, E.A.; Osipova, E.A.; Pakhorukov, A.L.; Pankov, L.V.; Pan, A.; Panov, A.D.; Petrukhin, A.A.; Poleschuk, V.A.; Poddubny, I.; Popova, E.G.; Postnikov, E.B.; Prosin, V.V.; Pushnin, A.A.; Raikin, R.I.; Razumov, A.V.; Rubtsov, G.I.; Ryabov, E.V.; Samoliga, V.S.; Satyshev, I.; Silaev, A.A.; Junior, A.A. Silaev; Sidorenkov, A.Yu.; Skurikhin, A.V.; Sokolov, A.V.; Sveshnikova, L.G.; Shaikovsky, A.; Shulga, M.; Tabolenko, V.A.; Tkachev, L.G.; Tanaev, A.B.; Ternovoy, M.Yu.; Ushakov, N.A.; Volchugov, P.A.; Volkov, N.V.; Voronin, D.M.; Zirakashvili, V.; Zagorodnikov, A.V.; Zhurov, D.P.; Yashin, I.I.

doi:10.22323/1.501.0205

Volume 501 - 39th International Cosmic Ray Conference (ICRC2025) - Cosmic-Ray Indirect

Energy Spectrum of primary Cosmic Rays according to the data of the Tunka-Grande scintillation array.

N.M. Budnev*, A.L. Ivanova, I.I. Astapov, P.A. Bezyazeekov, A.V. Bulan, A.E. Blinov, A.N. Borodin, P.V. Busygin, A. Chiavassa, A.N. Dyachok, A.R. Gafarov, A.Y. Garmash, V.M. Grebenyuk, E.O. Gress, O.A. Gress, T.I. Gress, A.A. Grinyuk, O.G. Grishin, A.D. Ivanova, M.A. Iliushin, I.A. Kabannik, N.N. Kalmykov, V.V. Kindin, S.N. Kiryuhin, K.G. Kompaniets, E.E. Korosteleva, V.A. Kozhin, E.A. Kravchenko, A.P. Kryukov, L.A. Kuzmichev, A.A. Lagutin, M.V. Lavrova, Y.E. Lemeshev, B.K. Lubsandorzhiev, N.B. Lubsandorzhiev, A. Lukanov, S.D. Malakhov, R.R. Mirgazov, R.D. Monkhoev, E.A. Okuneva, E.A. Osipova, A.L. Pakhorukov, L.V. Pankov, A. Pan, A.D. Panov, A.A. Petrukhin, V.A. Poleschuk, I. Poddubny, E.G. Popova, E.B. Postnikov, V.V. Prosin, A.A. Pushnin, R.I. Raikin, A.V. Razumov, G.I. Rubtsov, E.V. Ryabov, V.S. Samoliga, I. Satyshev, A.A. Silaev, A.A.S. Junior, A.Y. Sidorenkov, A.V. Skurikhin, A.V. Sokolov, L.G. Sveshnikova, A. Shaikovsky, M. Shulga, V.A. Tabolenko, L.G. Tkachev, A.B. Tanaev, M.Y. Ternovoy, N.A. Ushakov, P.A. Volchugov, N.V. Volkov, D.M. Voronin, V. Zirakashvili, A.V. Zagorodnikov, D.P. Zhurov and I.I. Yashinet al. (click to show)

*: corresponding author

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Pre-published on: October 06, 2025

Published on: December 30, 2025

Abstract

The Tunka-Grande experiment is a scintillation array with about 0.5 square kilometer sensitive area at Tunka Valley, Siberia. Its scientific program is to study cosmic rays and search for astrophysical gamma rays by detecting charged particles (electrons and muons) of extensive air showers. We describe the methods of reconstruction of EAS parameters and present the all-particle energy spectrum, restored in the energy range of 10 PeV to 1 EeV.

DOI: https://doi.org/10.22323/1.501.0205

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