The Search for Diffuse Gamma Rays Using Data from the Tunka-Grande Experiment

• Published in: Bulletin of the Russian Academy of Sciences. Physics 2019-08, Vol.83 (8), p.959-961
• Main Authors: Monkhoev, R. D., Budnev, N. M., Voronin, D. M., Gafarov, A. R., Gress, O. A., Gress, T. I., Dyachok, A. N., Zagorodnikov, A. V., Zurbanov, V. L., Kalmykov, N. N., Kazarina, Yu. A., Kiryuhin, S. N., Korosteleva, E. E., Kozhin, V. A., Kuzmichev, L. A., Lubsandorzhiev, B. K., Lubsandorzhiev, N. B., Mirgazov, R. R., Osipova, E. A., Pakhorukov, A. L., Panasyuk, M. I., Pankov, L. V., Poleschuk, V. A., Popova, E. G., Prosin, V. V., Ptuskin, V. S., Pushnin, A. A., Semeney, Yu. A., Sveshnikova, L. G., Silaev, A. A., Skurikhin, A. V., Sulakov, V. P., Tabolenko, V. A., Chiavassa, A., Spiering, C.
• Format: Article
• Language: English
• Subjects: Arrays; Cosmic ray showers; Cosmic rays; Energy spectra; Gamma rays; Hadrons; Heavy Ions; Nuclear Physics; Physics; Physics and Astronomy; Primary cosmic rays; Searching
• ISSN: 1062-8738; 1934-9432
• DOI: 10.3103/S1062873819080306

The Tunka-Grande array is part of an experimental complex located in the Tunka Valley (Republic of Buryatia, Russia) about 50 km from Lake Baikal. This complex also contains the Tunka-133 and Tunka-Rex arrays. The aim of this complex is to study the primary cosmic ray energy spectrum and mass composition in the energy range of 10 16 –10 18 eV, and to search for diffuse gamma rays in the energy range of 5 × 10 16 –5 × 10 17 eV. The design of the Tunka-Grande array and the procedure for reconstructing the parameters of extensive air showers (EASes) are described, and preliminary results are presented from the search for diffuse gamma rays with energies of more than 5 × 10 16 eV.