Status of Experiment NEUTRINO-4 Search for Sterile Neutrino

International Conference on Particle Physics and Astrophysics

物理学;天文学

Serebrov, A.^1 ; Ivochkin, V.^1 ; Samoilov, R.^1 ; Fomin, A.^1 ; Polyushkin, A.^1 ; Zinoviev, V.^1 ; Neustroev, P.^1 ; Golovtsov, V.^1 ; Chernyj, A.^1 ; Zherebtsov, O.^1 ; Martemyanov, V.^2 ; Tarasenkov, V.^2 ; Aleshin, V.^2 ; Petelin, A.^3 ; Izhutov, A.^3 ; Tuzov, A.^3 ; Sazontov, S.^3 ; Ryazanov, D.^4 ; Gromov, M.^3 ; Afanasiev, V.^3 ; Zaytsev, M.^1,4 ; Chaikovskii, M.^1

Petersburg Nuclear Physics Institute, Gatchina

188300, Russia^1

National Research Center, Kurchatov Institute, Moscow

123182, Russia^2

Joint Stock Company, State Scientific Center, Research Institute of Atomic Reactors, Dimitrovgrad

433510, Russia^3

Dimitrovgrad Engineering and Technological Institute, National Research Nuclear University MEPhI, Dimitrovgrad

433511, Russia^4

关键词: Distance ranges;    Liquid scintillator volume;    Measurements of;    Multi-section;    Neutrino detectors;    Passive shielding;    Sterile neutrinos;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012116/pdf
DOI  :  10.1088/1742-6596/798/1/012116

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

In order to carry out research in the field of possible existence of a sterile neutrino the laboratory based on SM-3 reactor (Dimitrovgrad, Russia) was created to search for oscillations of reactor antineutrino. The prototype of a multi-section neutrino detector with liquid scintillator volume of 350 l was installed in the middle of 2015. It is a moveable inside the passive shielding detector, which can be set at distance range from 6 to 11 meters from the reactor core. Measurements of antineutrino flux at such short distances from the reactor core are carried out with moveable detector for the first time. The measurements with full-scale detector with liquid scintillator volume of 3m3(5x10 sections) was started only in June, 2016. The today available data is presented in the article.