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ID 58120
フルテキストURL
著者
Aguilar-Arevalo, A. Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de Mexico
Aoki, M. Graduate School of Science, Osaka University,
Blecher, M. Physics Department, Virginia Tech.
Britton, D.I. School of Physics and Astronomy, University of Glasgow
vom Bruch, Bruch, D. Department of Physics and Astronomy, University of British Columbia
Bryman, D. A. Department of Physics and Astronomy, University of British Columbia
Chen, S. Department of Engineering Physics, Tsinghua University
Comfort, J. Physics Department, Arizona State University
Doria, L. TRIUMF, 4004 Wesbrook Mall
Cuen-Rochin, S. Department of Physics and Astronomy, University of British Columbia
Gumplinger, P. TRIUMF, 4004 Wesbrook Mall
Hussein, A. University of Northern British Columbia
Igarashi, Y. KEK
Ito, S. Graduate School of Science, Osaka University
Kettell, S. H. Brookhaven National Laboratory
Kurchaninov, L. TRIUMF, 4004 Wesbrook Mall
Littenberg, L. S. Brookhaven National Laboratory
Malbrunot, C. Department of Physics and Astronomy, University of British Columbia
Mischke, R. E. TRIUMF, 4004 Wesbrook Mall
Numao, T. TRIUMF, 4004 Wesbrook Mall
Protopopescu, D. School of Physics and Astronomy, University of Glasgow
Sher, A. TRIUMF, 4004 Wesbrook Mall
Sullivan, T. Department of Physics and Astronomy, University of British Columbia
Vavilov, D. TRIUMF, 4004 Wesbrook Mall
抄録
In the present work of the PIENU experiment, heavy neutrinos were sought in pion decays pi(+) -> mu(+)nu at rest by examining the observed muon energy spectrum for extra peaks in addition to the expected peak for a light neutrino. No evidence for heavy neutrinos was observed. Upper limits were set on the neutrino mixing matrix vertical bar U-mu i vertical bar(2) in the neutrino mass region of 15.7-33.8 MeV/c(2), improving on previous results by an order of magnitude. (C) 2019 The Authors. Published by Elsevier B.V.
キーワード
Pion decay
Heavy neutrino
発行日
2019-11-10
出版物タイトル
Physics Letters B
798巻
出版者
Elsevier
開始ページ
134980
ISSN
0370-2693
資料タイプ
学術雑誌論文
言語
English
OAI-PMH Set
岡山大学
著作権者
© 2019 The Authors.
論文のバージョン
publisher
DOI
Web of Science KeyUT
関連URL
isVersionOf https://doi.org/10.1016/j.physletb.2019.134980
ライセンス
http://creativecommons.org/licenses/by/4.0/
助成機関名
日本学術振興会
助成番号
18540274
21340059
24224006
19K03888