The Carpet-3 EAS array to search for cosmic diffuse ultra-high energy gamma-rays D.D. Dzhappuev, V. B. Petkov, A.S. Lidvansky, V. I. Volchenko, G.V. Volchenko, E. A.Gorbacheva, I. M. Dzaparova, A.U. Kudzhaev, N. F. Klimenko, A. N. Kurenya, O. I. Mikhailova, K.V. Ptitsyna, M.M. Khadzhiev, A.F. Yanin

Abstract

      At the moment an experiment for measuring the flux of cosmic diffuse gamma rays with energy higher than 100 TeV (experiment Carpet-3) is being prepared at the Baksan Neutrino Observatory. The preparation of the experiment implies considerable enlargement of the area of both muon detector and surface part of the shower array. Sensitivity of the experiment to showers generated by primary gamma rays is estimated for different configurations of the future array. Also presented are the results of measurements made with a smaller area of the muon detector (the Carpet-2 experiment) for a net exposure of 9.2 years. Preliminary estimates of the upper limit on the flux of diffuse cosmic gamma rays with energies above 930 TeV are derived.

Reference:
D.D. Dzhappuev, V. B. Petkov, A.S. Lidvansky, V. I. Volchenko, G.V. Volchenko, E. A.Gorbacheva, I. M. Dzaparova, A.U. Kudzhaev, N. F. Klimenko, A. N. Kurenya, O. I. Mikhailova, K.V. Ptitsyna, M.M. Khadzhiev, A.F. Yanin "The Carpet-3 EAS array to search for cosmic diffuse ultra-high energy gamma-rays" in Proceedings of The International Conference "SN 1987A, Quark Phase Transition in Compact Objects and Multimessenger Astronomy", Russia, Terskol (BNO INR RAS), Nizhnij Arkhyz (SAO RAS), 2-8 July 2017, INR RAS, Moscow, 2018, ISBN 978-5-94274-327-7, pp. 51-57.
DOI: 10.26119/SAO.2020.1.52300
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