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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2023 Volume 118, Issue 3, Pages 159–165 (Mi jetpl7001)

FIELDS, PARTICLES, AND NUCLEI

Effect of meteorological parameters on the cosmic muon flux studied using the effective generation level method with the DANSS detector data

I. G. Alekseevab, V. V. Belovc, M. V. Danilovb, I. V. Zhitnikovc, D. R. Zinatulinacd, S. V. Kazartsevc, A. S. Kobyakinaeb, A. S. Kuzntesovc, I. V. Machikhilyanf, D. V. Medvedevc, V. M. Nesterova, D. V. Ponomarevc, I. E. Rozovac, N. S. Rumyantsevacg, V. Yu. Rusinova, E. I. Samigullinab, D. N. Sviridaab, N. A. Skrobovaab, E. I. Tarkovskya, D. V. Filosofovc, M. V. Fominac, E. A. Shevchikc, M. V. Shirchenkoc, Yu. A. Shitovc, A. E. Yakovlevab, E. A. Yakushevc

a National Research Center Kurchatov Institute, Moscow, 123182 Russia
b Lebedev Physical Institute, Moscow, 119991 Russia
c Joint Institute for Nuclear Research, Dubna, Moscow region, 141980 Russia
d Voronezh State University, Voronezh, 394018 Russia
e Moscow Institute of Physics and Technology (National Research University), Dolgoprudnyi, Moscow region, 141701 Russia
f Dukhov All-Russia Research Institute of Automatics, Moscow, 127055 Russia
g Dubna State University, Dubna, Moscow region, 141982 Russia

Abstract: The DANSS detector is located directly under the nuclear reactor at the Kalinin nuclear power plant. Such a position ensures about 50 m.w.e. shielding from cosmic rays in the vertical direction; as a result, the detector occupies an intermediate position between surface and underground detectors in the shielding from cosmic rays. The sensitive volume of the detector consisting of a 1-m$^3$ plastic scintillator is surrounded by the multilayer passive shielding and muon veto. The main aim of the DANSS experiment is to measure the antineutrino spectrum at various distances from the source. To this end, the detector is placed on a lifting platform in order to record data at three positions of 10.9, 11.9, and 12.9 m from the reactor core. The detector can reconstruct muon tracks passing through its sensitive volume. The pressure, temperature, and decay coefficients for muons in various regions of the zenith angle $\theta $ have been determined from the muon data collected during four years using the effective generation level method.

Received: 04.07.2023
Revised: 04.07.2023
Accepted: 06.07.2023

DOI: 10.31857/S123456782315003X


 English version:
Journal of Experimental and Theoretical Physics Letters, 2023, 118:3, 165–171


© Steklov Math. Inst. of RAS, 2024