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- Title
Characterization of the correlated background for a sterile neutrino search using the first dataset of the JSNS2 experiment.
- Authors
Hino, Y.; Ajimura, S.; Cheoun, M. K.; Choi, J. H.; Dodo, T.; Furuta, H.; Goh, J.; Haga, K.; Harada, M.; Hasegawa, S.; Hiraiwa, T.; Hwang, W.; Jang, H. I.; Jang, J. S.; Jeon, H.; Jeon, S.; Joo, K. K.; Jordan, J. R.; Jung, D. E.; Kang, S. K.
- Abstract
JSNS 2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment that is searching for sterile neutrinos via the observation of ν ¯ μ → ν ¯ e appearance oscillations using muon decay-at-rest neutrinos. Before dedicated data taking in the first-half of 2021, we performed a commissioning run for 10 days in June 2020. Using the data obtained in this commissioning run, in this paper, we present an estimate of the correlated background which imitates the ν ¯ e signal in a sterile neutrino search. In addition, in order to demonstrate future prospects of the JSNS 2 experiment, possible pulse shape discrimination improvements towards reducing cosmic ray induced fast neutron background are described.
- Subjects
STERILE neutrinos; NEUTRINOS; COSMIC rays; FORM perception; FAST neutrons; NEUTRON sources
- Publication
European Physical Journal C -- Particles & Fields, 2022, Vol 82, Issue 4, p1
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s10052-022-10284-2