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ID 115232
Author
Abe, K. The University of Tokyo
Chen, Y. The University of Tokyo
Hiraide, K. The University of Tokyo
Ichimura, K. The University of Tokyo|Tohoku University
Imaizumi, S. The University of Tokyo
Kato, N. The University of Tokyo
Kobayashi, K. The University of Tokyo|Waseda University
Kobayashi, M. The University of Tokyo|Columbia University
Moriyama, S. The University of Tokyo
Nakahata, M. The University of Tokyo
Sato, K. The University of Tokyo|Nagoya University
Sekiya, H. The University of Tokyo
Suzuki, T. The University of Tokyo
Takeda, A. The University of Tokyo
Tasaka, S. The University of Tokyo
Yamashita, M. The University of Tokyo|Nagoya University
Yang, B.S. Institute for Basic Science
Kim, N.Y. Institute for Basic Science
Kim, Y.D. Institute for Basic Science
Kim, Y.H. Institute for Basic Science|Korea Research Institute of Standards and Science
Ishii, R. Nagoya University
Itow, Y. Nagoya University
Kanzawa, K. Nagoya University
Martens, K. The University of Tokyo
Mason, A. The University of Tokyo|University of Oxford
Suzuki, Y. The University of Tokyo
Miuchi, K. Kobe University
Takeuchi, Y. Kobe University|The University of Tokyo
Lee, K.B. Korea Research Institute of Standards and Science
Lee, M.K. Korea Research Institute of Standards and Science
Fukuda, Y. Miyagi University of Education
Ogawa, H. Nihon University|The University of Tokyo
Kishimoto, Y. Tohoku University|The University of Tokyo
Nishijima, K. Tokai University
Xu, B.D. Tsinghua University|The University of Tokyo
Nakamura, S. Yokohama National University
Keywords
Neutrino
Millicharge
Magnetic moment
Dark photon
Low background
Liquid xenon
Content Type
Journal Article
Description
We have searched for exotic neutrino-electron interactions that could be produced by a neutrino millicharge, by a neutrino magnetic moment, or by dark photons using solar neutrinos in the XMASS-I liquid xenon detector. We observed no significant signals in 711 days of data. We obtain an upper limit for neutrino millicharge of 5.4 × 10−12e at 90% confidence level assuming all three species of neutrino have common millicharge. We also set flavor-dependent limits assuming the respective neutrino flavor is the only one carrying a millicharge, 7.3 × 10−12e for νe , 1.1 × 10−11e for νμ, and 1.1 × 10−11e for ντ . These limits are the most stringent yet obtained from direct measurements. We also obtain an upper limit for the neutrino magnetic moment of 1.8 × 10−10 Bohr magnetons. In addition, we obtain upper limits for the coupling constant of dark photons in the U(1)B−L model of 1.3 × 10−6 if the dark photon mass is 1 × 10−3 MeV/c2, and 8.8 × 10−5 if it is 10 MeV/c2.
Journal Title
Physics Letters B
ISSN
03702693
NCID
AA11537044
AA00774026
Publisher
Elsevier
Volume
809
Start Page
135741
Published Date
2020-08-28
Rights
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
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departments
Science and Technology