European Physical Journal C: Particles and Fields (Apr 2024)
Study on the accidental background of the JSNS $$^2$$ 2 experiment
- D. H. Lee,
- S. Ajimura,
- M. K. Cheoun,
- J. H. Choi,
- J. Y. Choi,
- T. Dodo,
- J. Goh,
- K. Haga,
- M. Harada,
- S. Hasegawa,
- T. Hiraiwa,
- W. Hwang,
- H. I. Jang,
- J. S. Jang,
- H. Jeon,
- S. Jeon,
- K. K. Joo,
- D. E. Jung,
- S. K. Kang,
- Y. Kasugai,
- T. Kawasaki,
- E. J. Kim,
- J. Y. Kim,
- S. B. Kim,
- W. Kim,
- H. Kinoshita,
- T. Konno,
- I. T. Lim,
- C. Little,
- E. Marzec,
- T. Maruyama,
- S. Masuda,
- S. Meigo,
- S. Monjushiro,
- D. H. Moon,
- T. Nakano,
- M. Niiyama,
- K. Nishikawa,
- M. Y. Pac,
- H. W. Park,
- J. S. Park,
- R. G. Park,
- S. J. M. Peeters,
- C. Rott,
- K. Sakai,
- S. Sakamoto,
- T. Shima,
- C. D. Shin,
- J. Spitz,
- F. Suekane,
- Y. Sugaya,
- K. Suzuya,
- M. Taira,
- Y. Yamaguchi,
- M. Yeh,
- I. S. Yeo,
- C. Yoo,
- I. Yu
Affiliations
- D. H. Lee
- High Energy Accelerator Research Organization (KEK)
- S. Ajimura
- Research Center for Nuclear Physics, Osaka University
- M. K. Cheoun
- Department of Physics, Soongsil University
- J. H. Choi
- Laboratory for High Energy Physics, Dongshin University
- J. Y. Choi
- Department of Fire Safety, Seoyeong University
- T. Dodo
- Research Center for Neutrino Science, Tohoku University
- J. Goh
- Department of Physics, Kyung Hee University
- K. Haga
- J-PARC Center, JAEA
- M. Harada
- J-PARC Center, JAEA
- S. Hasegawa
- J-PARC Center, JAEA
- T. Hiraiwa
- Research Center for Nuclear Physics, Osaka University
- W. Hwang
- Department of Physics, Kyung Hee University
- H. I. Jang
- Department of Fire Safety, Seoyeong University
- J. S. Jang
- Gwangju Institute of Science and Technology
- H. Jeon
- Department of Physics, Sungkyunkwan University
- S. Jeon
- Department of Physics, Sungkyunkwan University
- K. K. Joo
- Department of Physics, Chonnam National University
- D. E. Jung
- Department of Physics, Sungkyunkwan University
- S. K. Kang
- School of Liberal Arts, Seoul National University of Science and Technology
- Y. Kasugai
- J-PARC Center, JAEA
- T. Kawasaki
- Department of Physics, Kitasato University
- E. J. Kim
- Division of Science Education, Jeonbuk National University
- J. Y. Kim
- Department of Physics, Chonnam National University
- S. B. Kim
- School of Physics, Sun Yat-sen (Zhongshan) University
- W. Kim
- Department of Physics, Kyungpook National University
- H. Kinoshita
- J-PARC Center, JAEA
- T. Konno
- Department of Physics, Kitasato University
- I. T. Lim
- Department of Physics, Chonnam National University
- C. Little
- University of Michigan
- E. Marzec
- University of Michigan
- T. Maruyama
- High Energy Accelerator Research Organization (KEK)
- S. Masuda
- J-PARC Center, JAEA
- S. Meigo
- J-PARC Center, JAEA
- S. Monjushiro
- High Energy Accelerator Research Organization (KEK)
- D. H. Moon
- Department of Physics, Chonnam National University
- T. Nakano
- Research Center for Nuclear Physics, Osaka University
- M. Niiyama
- Department of Physics, Kyoto Sangyo University
- K. Nishikawa
- High Energy Accelerator Research Organization (KEK)
- M. Y. Pac
- Laboratory for High Energy Physics, Dongshin University
- H. W. Park
- Department of Physics, Chonnam National University
- J. S. Park
- Department of Physics, Kyungpook National University
- R. G. Park
- Department of Physics, Chonnam National University
- S. J. M. Peeters
- Department of Physics and Astronomy, University of Sussex
- C. Rott
- Department of Physics, Sungkyunkwan University
- K. Sakai
- J-PARC Center, JAEA
- S. Sakamoto
- J-PARC Center, JAEA
- T. Shima
- Research Center for Nuclear Physics, Osaka University
- C. D. Shin
- High Energy Accelerator Research Organization (KEK)
- J. Spitz
- University of Michigan
- F. Suekane
- Research Center for Neutrino Science, Tohoku University
- Y. Sugaya
- Research Center for Nuclear Physics, Osaka University
- K. Suzuya
- J-PARC Center, JAEA
- M. Taira
- High Energy Accelerator Research Organization (KEK)
- Y. Yamaguchi
- J-PARC Center, JAEA
- M. Yeh
- Brookhaven National Laboratory
- I. S. Yeo
- Laboratory for High Energy Physics, Dongshin University
- C. Yoo
- Department of Physics, Kyung Hee University
- I. Yu
- Department of Physics, Sungkyunkwan University
- DOI
- https://doi.org/10.1140/epjc/s10052-024-12778-7
- Journal volume & issue
-
Vol. 84,
no. 4
pp. 1 – 6
Abstract
Abstract JSNS $$^2$$ 2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment that searches for sterile neutrinos via the observation of $$\bar{\nu }_{\mu } \rightarrow \bar{\nu }_{e}$$ ν ¯ μ → ν ¯ e appearance oscillations using muon decay-at-rest neutrinos. The JSNS $$^2$$ 2 experiment performed data taking from 2021. In this manuscript, a study of the accidental background is presented. The rate of the accidental background is ( $$9.29\pm 0.39) \times 10^{-8}$$ 9.29 ± 0.39 ) × 10 - 8 /spill with 0.75 MW beam power and comparable to the expected number of signal events.
