A. P. Serebrov, V. G. Ivochkin, R. M. Samoilov, A. K. Fomin, V. G. Zinov'ev, S. S. Volkov, V. L. Golovtsov, N. V. Gruzinskii, P. V. Neustroev, V. V. Fedorov, I. V. Parshin, A. A. Gerasimov, M. E. Zaitsev, M. E. Chaikovskii, A. M. Gagarski, A. L. Petelin, A. L. Izhutov, M. O. Gromov, S. A. Sazontov, A. A. Tuzov, V. I. Rykalin, D. A. Makarenkov, A. M. Nemeryuk, T. E. Kuzmina, “Creation of the second neutrino laboratory at the SM-3 reactor in order to increase the accuracy of the “Neutrino-4” experiment”, Zhurnal Tekhnicheskoi Fiziki, 2023, Volume 93, Issue 1,Pages <nobr>175

This article is cited in 1 paper

Experimental instruments and technique

Creation of the second neutrino laboratory at the SM-3 reactor in order to increase the accuracy of the “Neutrino-4” experiment

A. P. Serebrov^a, V. G. Ivochkin^a, R. M. Samoilov^a, A. K. Fomin^a, V. G. Zinov'ev^a, S. S. Volkov^a, V. L. Golovtsov^a, N. V. Gruzinskii^a, P. V. Neustroev^a, V. V. Fedorov^a, I. V. Parshin^a, A. A. Gerasimov^a, M. E. Zaitsev^ab, M. E. Chaikovskii^a, A. M. Gagarski^a, A. L. Petelin^c, A. L. Izhutov^c, M. O. Gromov^c, S. A. Sazontov^c, A. A. Tuzov^c, V. I. Rykalin^d, D. A. Makarenkov^e, A. M. Nemeryuk^e, T. E. Kuzmina^f

^a The Petersburg Nuclear Physics Institute, The National Research Center "Kurchatov Institute", Gatchina, Russia
^b Dimitrovgrad Engineering Institute of Technology – Branch of National Research Nuclear University MEPhI
^c JSC "State Science Center Research Institute of Atomic Reactors", Dimitrovgrad, Russia
^d Institute for High Energy Physics, Protvino, Moskovskaya obl.
^e NRC "Kurchatov Institute" – IHEP
^f JSC Radium Institute. V.G. Khlopina, St. Petersburg, Russia

Abstract: In the experiment “Neutrino-4” on the search for a sterile neutrino, the effect of oscillations was found at a confidence level of 3 standard deviations. In order to significantly increase the accuracy of the experiment, a second neutrino laboratory is created at the SM-3 reactor (Dimitrovgrad, Russia) and a new neutrino detector is developed. The scintillation-type detector consists of 4 modules having a multi-sectional structure with a horizontal arrangement of 100 sections with PMTs located on both sides of the section. The possibility of increasing the accuracy of the experiment by a factor of 2.7 is shown, which will make it possible to achieve a confidence level of more than 5 standard deviations and answer the question of the existence of a sterile neutrino.

Keywords: sterile neutrino, reactor antineutrino.

Received: 02.11.2022
Revised: 02.11.2022
Accepted: 02.11.2022

DOI: 10.21883/JTF.2023.01.54079.241-22