Measurement of cosmic-ray muon spallation products in a xenon-loaded liquid scintillator with KamLAND

Journal Article · 22 May 2023 · Physical Review. C

DOI: https://doi.org/10.1103/physrevc.107.054612 · OSTI ID:1974638

Abe, S.  ^[1]; Asami, S.; Eizuka, M.; Futagi, S.; Gando, A.; Gando, Y.; Gima, T.; Goto, A.; Hachiya, T. ; Hata, K. ; Hosokawa, K.; Ichimura, K. ; Ieki, S. ; Ikeda, H.; Inoue, K.; Ishidoshiro, K. ; Kamei, Y. ; Kawada, N. ; Kishimoto, Y.; Koga, M. ; Kurasawa, M.; Mitsui, T.; Miyake, H.; Nakahata, T.; Nakamura, K.; Nakamura, R.; Ozaki, H. ; Sakai, T.; Shimizu, I. ; Shirai, J.; Shiraishi, K.; Suzuki, A.; Suzuki, Y.; Takeuchi, A.; Tamae, K.; Watanabe, H.; Yoshida, Y.; Obara, S.; Ichikawa, A. K.; Yoshida, S. ; Umehara, S.; Fushimi, K. ; Kotera, K.; Urano, Y.; Berger, B. E.; Fujikawa, B. K. ; Learned, J. G. ; Maricic, J.; Axani, S. N. ; Fu, Z.; Smolsky, J. ; Winslow, L. A.; Efremenko, Y. ; Karwowski, H. J. ; Markoff, D. M. ; Tornow, W. ; Dell'Oro, S.; O'Donnell, T.; Detwiler, J. A.; Enomoto, S.; Decowski, M. P. ; Weerman, K. M. ; Grant, C.; Li, A.; Song, H.

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1. Tohoku Univ., Sendai (Japan); KamLAND-Zen Collaboration et al.

Cosmic-ray muons produce various radioisotopes when passing through material. These spallation products can be backgrounds for rare event searches such as in solar neutrino, double-β decay, and dark matter search experiments. The KamLAND-Zen experiment searches for neutrinoless double-β decay in 745 kg of xenon dissolved in liquid scintillator. The experiment includes dead-time-free electronics with a high efficiency for detecting muon-induced neutrons. The production yields of different radioisotopes are measured with a combination of delayed coincidence techniques, newly developed muon reconstruction, and xenon spallation identification methods. The observed xenon spallation products are consistent with results from the FLUKA and GEANT4 simulation codes.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); USDOE
• Contributing Organization: KamLAND-Zen Collaboration
• Grant/Contract Number: AC02-05CH11231; De-AC02-05CH11231
• OSTI ID: 1974638
• Alternate ID(s): OSTI ID: 1990054
• Journal Information: Physical Review. C, Vol. 107, Issue 5; ISSN 2469-9985
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English