新山　雅之
   所属   京都産業大学  理学部 物理科学科
   職種   教授
発行・発表の年月 2021/11
形態種別 その他
標題 Characterization of the correlated background for a sterile neutrino search using the first dataset of the JSNS$^2$ experiment
執筆形態 その他
著者・共著者 Y. Hino,S. Ajimura,M. K. Cheoun,J. H. Choi,T. Dodo,H. Furuta,J. Goh,K. Haga,M. Harada,S. Hasegawa,T. Hiraiwa,W. Hwang,H. I. Jang,J. S. Jang,H. Jeon,S. Jeon,K. K. Joo,J. R. Jordan,D. E. Jung,S. K. Kang,Y. Kasugai,T. Kawasaki,E. J. Kim,J. Y. Kim,S. B. Kim,S. Y. Kim,W. Kim,H. Kinoshita,T. Konno,C. Y. Lee,D. H. Lee,S. Lee,I. T. Lim,C. Little,E. Marzec,T. Maruyama,S. Masuda,S. Meigo,S. Monjushiro,D. H. Moon,T. Nakano,M. Niiyama,K. Nishikawa,M. Nomachi,M. Y. Pac,J. S. Park,R. G. Park,S. J. M. Peeters,
概要 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
$\bar{\nu}_{\mu} \to \bar{\nu}_{e}$ 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 $\bar{\nu}_{e}$ 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.
DOI 10.1140/epjc/s10052-022-10284-2
PermalinkURL http://arxiv.org/abs/2111.07482v2
researchmap用URL http://arxiv.org/pdf/2111.07482v2