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新山 雅之 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 発行・発表の年月 | 2021/04 |
| 形態種別 | その他 |
| 標題 | The JSNS^2 Detector |
| 執筆形態 | その他 |
| 著者・共著者 | S. Ajimura,M. Botran,J. H. Choi,J. W. Choi,M. K. Cheoun,T. Dodo,H. Furuta,J. Goh,K. Haga,M. Harada,S. Hasegawa,Y. Hino,T. Hiraiwa,H. I. Jang,J. S. Jang,M. C. 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,W. Kim,H. Kinoshita,T. Konno,D. H. Lee,S. Lee,I. T. Lim,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,S. J. M. Peeters,H. Ray,G. Roelling |
| 概要 | The JSNS^2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron
Source) experiment aims to search for oscillations involving a sterile neutrino in the eV^2 mass-splitting range. The experiment will search for the appearance of electron antineutrinos oscillated from muon antineutrinos. The electron antineutrinos are detected via the inverse beta decay process using a liquid scintillator detector. A 1MW beam of 3 GeV protons incident on a spallation neutron target produces an intense and pulsed neutrino source from pion, muon, and kaon decay at rest. The JSNS^2 detector is located 24 m away from the neutrino source and began operation from June 2020. The detector contains 17 tonnes of gadolinium (Gd) loaded liquid scintillator (LS) in an acrylic vessel, as a neutrino target. It is surrounded by 31 tonnes of unloaded LS in a stainless steel tank. Optical photons produced in LS are viewed by 120 R7081 Hamamatsu 10-inch Photomultiplier Tubes (PMTs). In this paper, we describe the JSNS^2 detector design, construction, and operation. |
| DOI | 10.1016/j.nima.2021.165742 |
| PermalinkURL | http://arxiv.org/abs/2104.13169v2 |
| researchmap用URL | http://arxiv.org/pdf/2104.13169v2 |