학술논문
Characterization of the correlated background for a sterile neutrino search using the first dataset of the JSNS2 experiment.
Document Type
Article
Author
Source
Subject
*STERILE neutrinos
*NEUTRINOS
*COSMIC rays
*FORM perception
*FAST neutrons
*NEUTRON sources
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Language
ISSN
1434-6044
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. [ABSTRACT FROM AUTHOR]