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

Russian version

DOI: 10.21883/TP.2023.01.55452.241-22

Serebrov A. P.¹, Ivochkin V. G.¹, Samoilov R. M.¹, Fomin A. K.¹, Zinoviev V. G.¹, Volkov S. S.¹, Golovtsov V. L.¹, Gruzinskii N. V.¹, Neustroev P. V.¹, Fedorov V. V.¹, Parshin I. V.¹, Gerasimov A. A.¹, Zaytsev M. E.^1,2, Chaikovskii M. E.¹, Gagarskiy A. M.¹, Petelin A. L.³, Izhutov A. L.³, Gromov M. O.³, Sazontov S. A.³, Tuzov A. A.³, Ryikalin V. I.⁴, Makarenkov D. A.⁵, Nemeryuk A. M.⁵, Kuzmina T. E.⁶

¹Konstantinov Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute, Gatchina, Russia
²Dimitrovgrad Engineering and Technological Institute MEPhI, Dimitrovgrad, Russia
³JSC “State Science Center Research Institute of Atomic Reactors”, Dimitrovgrad, Russia
⁴NRC “Kurchatov Institute” - IHEP, Protvino, Russia
⁵NRC “Kurchatov Institute” - IREA, Moscow, Russia
⁶JSC Radium Institute. V.G. Khlopina, St. Petersburg, Russia

Email: serebrov_ap@pnpi.nrcki.ru

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Abstract
References
Статистика просмотров

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.

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