Characterization of the correlated background for a sterile neutrino search using the first dataset of the JSNS2 experiment
Abstract
JSNS2 (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 JSNS2 experiment, possible pulse shape discrimination improvements towards reducing cosmic ray induced fast neutron background are described.
- Publication:
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European Physical Journal C
- Pub Date:
- April 2022
- DOI:
- 10.1140/epjc/s10052-022-10284-2
- arXiv:
- arXiv:2111.07482
- Bibcode:
- 2022EPJC...82..331H
- Keywords:
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- High Energy Physics - Experiment
- E-Print:
- 7 pages, 3 figures