The Tunka-Grande scintillation array: current results

A. L. Ivanova; I. Astapov; P. Bezyazeekov; E. Bonvech; A. Borodin; N.; Budnev; A. Bulan; D. Chernov; A. Chiavassa; A. Dyachok; A. Gafarov; A.; Garmash; V. Grebenyuk; E. Gress; O. Gress; T. Gress; A. Grinyuk; O. Grishin,; A. D. Ivanova; N. Kalmykov; V. Kindin; S. Kiryuhin; R. Kokoulin; K.; Kompaniets; E. Korosteleva; V. Kozhin; E. Kravchenko; A. Kryukov; L.; Kuzmichev; A. Lagutin; M. Lavrova; Y. Lemeshev; B. Lubsandorzhiev; N.; Lubsandorzhiev; A. Lukanov; D. Lukyantsev; S. Malakhov; R. Mirgazov; R.; Monkhoev; E. Osipova; A. Pakhorukov; L. Pankov; A. Pan; A. Panov; A.; Petrukhin; I. Poddubnyi; D. Podgrudkov; V. Poleschuk; V. Ponomareva; E.; Popova; E. Postnikov; V. Prosin; V. Ptuskin; A. Pushnin; R. Raikin; A.; Razumov; G. Rubtsov; E. Ryabov; Y. Sagan; V. Samoliga; A. Satyshev; A.; Silaev; A. Silaev (junior); A. Sidorenkov; A. Skurikhin; A. Sokolov; L.; Sveshnikova; V. Tabolenko; L. Tkachev; A. Tanaev; M. Ternovoy; R. Togoo; N.; Ushakov; A. Vaidyanathan; P. Volchugov; N. Volkov; D. Voronin; A.; Zagorodnikov; D. Zhurov; I. Yashin

arXiv:2207.09680·astro-ph.IM·September 13, 2022

The Tunka-Grande scintillation array: current results

A. L. Ivanova, I. Astapov, P. Bezyazeekov, E. Bonvech, A. Borodin, N., Budnev, A. Bulan, D. Chernov, A. Chiavassa, A. Dyachok, A. Gafarov, A., Garmash, V. Grebenyuk, E. Gress, O. Gress, T. Gress, A. Grinyuk, O. Grishin,, A. D. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin

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TL;DR

The Tunka-Grande array measures charged particles and muons in extensive air showers to study cosmic rays between 10 PeV and 1 EeV, aiming to understand their composition and origin transition.

Contribution

This paper presents the current results of the Tunka-Grande experiment, including the reconstructed all-particle energy spectrum in the 10 PeV to 1 EeV range.

Findings

01

Reconstructed the all-particle energy spectrum from four observation seasons.

02

Provided insights into cosmic ray composition in the 10 PeV to 1 EeV range.

03

Contributed to understanding the galactic to extragalactic transition of cosmic rays.

Abstract

The Tunka-Grande experiment is a scintillation array with about 0.5 sq.km sensitive area at Tunka Valley, Siberia, for measuring charged particles and muons in extensive air showers (EASs). Tunka-Grande is optimized for cosmic ray studies in the energy range 10 PeV to about 1 EeV, where exploring the composition is of fundamental importance for understanding the transition from galactic to extragalactic origin of cosmic rays. This paper attempts to provide a synopsis of the current results of the experiment. In particular, the reconstruction of the all-particle energy spectrum in the range of 10 PeV to 1 EeV based on experimental data from four observation seasons is presented.

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Taxonomy

TopicsAstrophysics and Cosmic Phenomena · Neutrino Physics Research · Dark Matter and Cosmic Phenomena