White paper: CeLAND - Investigation of the reactor antineutrino anomaly with an intense 144Ce-144Pr antineutrino source in KamLAND

A Gando,Y Gando, Shigeru Hayashida,Hiroaki Ikeda,Kuon Inoue,K Ishidoshiro,Hideki Ishikawa,Michiaki Koga,Ryosuke Matsuda,S Matsuda,Takeshi Mitsui, D Motoki,Kazuto Nakamura,Y Oki, Midori Otani,Ippei Shimizu,J Shirai,F Suekane,A Suzuki,Y Takemoto,K Tamae, K Ueshima,Hadime Watanabe,B D Xu,Shigeru Yamada,Yoshio Yamauchi,Hirofumi Yoshida,Tom Banks,B E Berger,M Cribier,P Decowski,J A Detwiler, M Durero,D A Dwyer,Y V Efremenko,S Enomoto,V Fischer,B K Fujikawa,J Gaffiot,V M Gelis, H J Karwowski,Yu G Kolomensky,A S Kozlov,V N Kornoukhov, T Lasserre, J G Learned,A Letourneau,D Lhuillier,J Maricic,D M Markoff, S Matsuno,G Mention, R Milincic, T W Odonnell, I S Saldikov, L Scola, G V Tikhomirov, C Veyssiere, M Vivier,Shiniti Yoshida

arXiv (Cornell University)（2013）

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摘要

We propose to test for short baseline neutrino oscillations, implied by the recent reevaluation of the reactor antineutrino flux and by anomalous results from the gallium solar neutrino detectors. The test will consist of producing a 75 kCi 144Ce - 144Pr antineutrino source to be deployed in the Kamioka Liquid Scintillator Anti-Neutrino Detector (KamLAND). KamLAND's 13m diameter target volume provides a suitable environment to measure energy and position dependence of the detected neutrino flux. A characteristic oscillation pattern would be visible for a baseline of about 10 m or less, providing a very clean signal of neutrino disappearance into a yet-unknown, "sterile" state. Such a measurement will be free of any reactor-related uncertainties. After 1.5 years of data taking the Reactor Antineutrino Anomaly parameter space will be tested at > 95% C.L.

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关键词

sensitivity,neutrino oscillation

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