Production of radioactive isotopes through cosmic muon spallation in KamLAND

S. Abe; S. Enomoto; K. Furuno; Y. Gando; H. Ikeda; K. Inoue; Y. Kibe; Y. Kishimoto; M. Koga; Y. Minekawa; T. Mitsui; K. Nakajima; K. Nakamura; M. Nakamura; I. Shimizu; Y. Shimizu; J. Shirai; F. Suekane; A. Suzuki; Y. Takemoto; K. Tamae; A. Terashima; H. Watanabe; E. Yonezawa; S. Yoshida; A. Kozlov; H. Murayama; J. Busenitz; T. Classen; C. Grant; G. Keefer; D. S. Leonard; D. McKee; A. Piepke; T. I. Banks; T. Bloxham; J. A. Detwiler; S. J. Freedman; B. K. Fujikawa; F. Gray; E. Guardincerri; L. Hsu; K. Ichimura; R. Kadel; C. Lendvai; K. -B. Luk; T. O'Donnell; H. M. Steiner; L. A. Winslow; D. A. Dwyer; C. Jillings; C. Mauger; R. D. McKeown; P. Vogel; C. Zhang; B. E. Berger; C. E. Lane; J. Maricic; T. Miletic; M. Batygov; J. G. Learned; S. Matsuno; S. Pakvasa; J. Foster; G. A. Horton-Smith; A. Tang; S. Dazeley; K. E. Downum; G. Gratta; K. Tolich; W. Bugg; Y. Efremenko; Y. Kamyshkov; O. Perevozchikov; H. J. Karwowski; D. M. Markoff; W. Tornow; K. M. Heeger; F. Piquemal; J. -S. Ricol; M. P. Decowski; KamLAND Collaboration

doi:10.1103/PhysRevC.81.025807

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Production of radioactive isotopes through cosmic muon spallation in KamLAND

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Production of radioactive isotopes through cosmic muon spallation in KamLAND

S. Abe, S. Enomoto, K. Furuno, Y. Gando, H. Ikeda, K. Inoue, Y. Kibe, Y. Kishimoto, M. Koga, Y. Minekawa, …

Physical review. C, Nuclear physics, v 81(2), p025807

01 Feb 2010

DOI: https://doi.org/10.1103/PhysRevC.81.025807

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Abstract

Physics, Nuclear

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Physical Sciences

Physics

Radioactive isotopes produced through cosmic muon spallation are a background for rare-event detection in. detectors, double-beta-decay experiments, and dark-matter searches. Understanding the nature of cosmogenic backgrounds is particularly important for future experiments aiming to determine the pep and CNO solar neutrino fluxes, for which the background is dominated by the spallation production of C-11. Data from the Kamioka liquid-scintillator antineutrino detector (KamLAND) provides valuable information for better understanding these backgrounds, especially in liquid scintillators, and for checking estimates from current simulations based upon MUSIC, FLUKA, and GEANT4. Using the time correlation between detected muons and neutron captures, the neutron production yield in the KamLAND liquid scintillator is measured to be Y-n = (2.8 +/- 0.3) x 10(-4) mu(-1) g(-1) cm(2). For other isotopes, the production yield is determined from the observed time correlation related to known isotope lifetimes. We find some yields are inconsistent with extrapolations based on an accelerator muon beam experiment.

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Title: Production of radioactive isotopes through cosmic muon spallation in KamLAND
Creators: S. Abe - Tohoku University
S. Enomoto - University of Tokyo
K. Furuno - Tohoku University
Y. Gando - Tohoku University
H. Ikeda - Tohoku University
K. Inoue - University of Tokyo
Y. Kibe - Tohoku University
Y. Kishimoto - Tohoku University
M. Koga - University of Tokyo
Y. Minekawa - Tohoku University
T. Mitsui - Tohoku University
K. Nakajima - Okayama University
K. Nakamura - University of Tokyo
M. Nakamura - Tohoku University
I. Shimizu - Tohoku University
Y. Shimizu - Tohoku University
J. Shirai - Tohoku University
F. Suekane - Tohoku University
A. Suzuki - Tohoku University
Y. Takemoto - Tohoku University
K. Tamae - Tohoku University
A. Terashima - Tohoku University
H. Watanabe - Tohoku University
E. Yonezawa - Tohoku University
S. Yoshida - Tohoku University
A. Kozlov - University of Tokyo
H. Murayama - University of Tokyo
J. Busenitz - University of Alabama
T. Classen - University of Alabama
C. Grant - University of Alabama
G. Keefer - University of Alabama
D. S. Leonard - University of Alabama
D. McKee - University of Alabama
A. Piepke - University of Alabama
T. I. Banks - University of California, Berkeley
T. Bloxham - University of California, Berkeley
J. A. Detwiler - University of California, Berkeley
S. J. Freedman - University of Tokyo
B. K. Fujikawa - University of Tokyo
F. Gray - University of California, Berkeley
E. Guardincerri - University of California, Berkeley
L. Hsu - University of California, Berkeley
K. Ichimura - University of California, Berkeley
R. Kadel - University of California, Berkeley
C. Lendvai - University of California, Berkeley
K. -B. Luk - University of California, Berkeley
T. O'Donnell - University of California, Berkeley
H. M. Steiner - University of California, Berkeley
L. A. Winslow - Massachusetts Institute of Technology
D. A. Dwyer - California Institute of Technology
C. Jillings - California Institute of Technology
C. Mauger - California Institute of Technology
R. D. McKeown - California Institute of Technology
P. Vogel - California Institute of Technology
C. Zhang - California Institute of Technology
B. E. Berger - Colorado State University
C. E. Lane - Drexel University
J. Maricic - Drexel University
T. Miletic - Drexel University
M. Batygov - Univ Hawaii Manoa, Dept Phys & Astron, Honolulu, HI 96822 USA
J. G. Learned - Univ Hawaii Manoa, Dept Phys & Astron, Honolulu, HI 96822 USA
S. Matsuno - Univ Hawaii Manoa, Dept Phys & Astron, Honolulu, HI 96822 USA
S. Pakvasa - Univ Hawaii Manoa, Dept Phys & Astron, Honolulu, HI 96822 USA
J. Foster - Kansas State University
G. A. Horton-Smith - University of Tokyo
A. Tang - Kansas State University
S. Dazeley - Louisiana State University
K. E. Downum - Stanford University
G. Gratta - Stanford University
K. Tolich - Stanford University
W. Bugg - University of Tennessee at Knoxville
Y. Efremenko - University of Tokyo
Y. Kamyshkov - University of Tennessee at Knoxville
O. Perevozchikov - University of Tennessee at Knoxville
H. J. Karwowski - Duke University
D. M. Markoff - Duke University
W. Tornow - Duke University
K. M. Heeger - University of Tokyo
F. Piquemal - University of Bordeaux
J. -S. Ricol - University of Bordeaux
M. P. Decowski - University of Tokyo
KamLAND Collaboration
Publication Details: Physical review. C, Nuclear physics, v 81(2), p025807
Publisher: Amer Physical Soc
Number of pages: 14
Grant note: 09CE2003 / Japanese Ministry of Education, Culture, Sports, Science and Technology; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) DEFG03-00ER41138; DE-AC02-05CH11231 / US Department of Energy (DOE); United States Department of Energy (DOE)
Resource Type: Journal article
Language: English
Academic Unit: Physics
Web of Science ID: WOS:000278341300044
Scopus ID: 2-s2.0-77649097175
Other Identifier: 991019296577604721

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Collaboration types: Domestic collaboration; International collaboration
Web of Science research areas: Physics, Nuclear

Production of radioactive isotopes through cosmic muon spallation in KamLAND

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