Pulse Shape Discrimination in JSNS2

T. Dodo; M. K. Cheoun; J. H. Choi; J. Y. Choi; J. Goh; K. Haga; M. Harada; S. Hasegawa; W. Hwang; T. Iida; H. I. Jang; J. S. Jang; 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; D. H. Lee; I. T. Lim; C. Little; E. Marzec; T. Maruyama; S. Masuda; S. Meigo; 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; Y. Takeuchi; Y. Yamaguchi; M. Yeh; I. S. Yeo; C. Yoo; I. Yu

doi:10.1093/ptep/ptaf016

Pulse Shape Discrimination in JSNS²

T. Dodo
, M. K. Cheoun
, J. H. Choi
, J. Y. Choi
, J. Goh
, K. Haga
, M. Harada
, S. Hasegawa
, W. Hwang
, T. Iida
, H. I. Jang
, J. S. Jang
, 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, D. H. Lee, I. T. Lim, C. Little, E. Marzec, T. Maruyama, S. Masuda, S. Meigo, 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, Y. Takeuchi, Y. Yamaguchi, M. Yeh, I. S. Yeo, C. Yoo, I. Yu

School of Natural Sciences

Tohoku University
Japan Atomic Energy Agency
Soongsil University
Dongshin University
Seoyeong University
Kyung Hee University
J-PARC Center
University of Tsukuba
Gwangju Institute of Science and Technology
Chonnam National University
Sungkyunkwan University
Kitasato University
Jeonbuk National University
Sun Yat-Sen University
Kyungpook National University
High Energy Accelerator Research Organization, Institute of Particle and Nuclear Physics
University of Michigan, Ann Arbor
The University of Osaka
Kyoto Sangyo University
University of Sussex
University of Utah
Brookhaven National Laboratory

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

JSNS² (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment that is searching for sterile neutrinos via the observation of appearance oscillations using neutrinos from muon decay-at-rest. For this search, rejecting cosmic-ray-induced neutron events by Pulse Shape Discrimination (PSD) is essential because the JSNS² detector is located above ground, on the third floor of the building. We have achieved 94.95%0.15% rejection of neutron events while keeping 92.82%1.77% of signal, electron-like events using a data-driven likelihood method. This article will report the PSD technique using the full fiducial volume of the JSNS² detector.

Original language	English
Article number	023H02
Journal	Progress of Theoretical and Experimental Physics
Volume	2025
Issue number	2
DOIs	https://doi.org/10.1093/ptep/ptaf016
State	Published - 1 Feb 2025

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10.1093/ptep/ptaf016

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Dodo, T., Cheoun, M. K., Choi, J. H., Choi, J. Y., Goh, J., Haga, K., Harada, M., Hasegawa, S., Hwang, W., Iida, T., Jang, H. I., Jang, J. S., Joo, K. K., Jung, D. E., Kang, S. K., Kasugai, Y., Kawasaki, T., Kim, E. J., Kim, J. Y., ... Yu, I. (2025). Pulse Shape Discrimination in JSNS². Progress of Theoretical and Experimental Physics, 2025(2), Article 023H02. https://doi.org/10.1093/ptep/ptaf016

@article{7450a124f80a45b0819450c8f773212a,

title = "Pulse Shape Discrimination in JSNS2",

abstract = "JSNS2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment that is searching for sterile neutrinos via the observation of appearance oscillations using neutrinos from muon decay-at-rest. For this search, rejecting cosmic-ray-induced neutron events by Pulse Shape Discrimination (PSD) is essential because the JSNS2 detector is located above ground, on the third floor of the building. We have achieved 94.95\%0.15\% rejection of neutron events while keeping 92.82\%1.77\% of signal, electron-like events using a data-driven likelihood method. This article will report the PSD technique using the full fiducial volume of the JSNS2 detector.",

author = "T. Dodo and Cheoun, \{M. K.\} and Choi, \{J. H.\} and Choi, \{J. Y.\} and J. Goh and K. Haga and M. Harada and S. Hasegawa and W. Hwang and T. Iida and Jang, \{H. I.\} and Jang, \{J. S.\} and Joo, \{K. K.\} and Jung, \{D. E.\} and Kang, \{S. K.\} and Y. Kasugai and T. Kawasaki and Kim, \{E. J.\} and Kim, \{J. Y.\} and Kim, \{S. B.\} and W. Kim and H. Kinoshita and T. Konno and Lee, \{D. H.\} and Lim, \{I. T.\} and C. Little and E. Marzec and T. Maruyama and S. Masuda and S. Meigo and Moon, \{D. H.\} and T. Nakano and M. Niiyama and K. Nishikawa and Pac, \{M. Y.\} and Park, \{H. W.\} and Park, \{J. S.\} and Park, \{R. G.\} and Peeters, \{S. J.M.\} and C. Rott and K. Sakai and S. Sakamoto and T. Shima and Shin, \{C. D.\} and J. Spitz and F. Suekane and Y. Sugaya and K. Suzuya and Y. Takeuchi and Y. Yamaguchi and M. Yeh and Yeo, \{I. S.\} and C. Yoo and I. Yu",

note = "Publisher Copyright: {\textcopyright} 2025 The Author(s).",

year = "2025",

month = feb,

day = "1",

doi = "10.1093/ptep/ptaf016",

language = "English",

volume = "2025",

journal = "Progress of Theoretical and Experimental Physics",

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Dodo, T, Cheoun, MK, Choi, JH, Choi, JY, Goh, J, Haga, K, Harada, M, Hasegawa, S, Hwang, W, Iida, T, Jang, HI, Jang, JS, Joo, KK, Jung, DE, Kang, SK, Kasugai, Y, Kawasaki, T, Kim, EJ, Kim, JY, Kim, SB, Kim, W, Kinoshita, H, Konno, T, Lee, DH, Lim, IT, Little, C, Marzec, E, Maruyama, T, Masuda, S, Meigo, S, Moon, DH, Nakano, T, Niiyama, M, Nishikawa, K, Pac, MY, Park, HW, Park, JS, Park, RG, Peeters, SJM, Rott, C, Sakai, K, Sakamoto, S, Shima, T, Shin, CD, Spitz, J, Suekane, F, Sugaya, Y, Suzuya, K, Takeuchi, Y, Yamaguchi, Y, Yeh, M, Yeo, IS, Yoo, C & Yu, I 2025, 'Pulse Shape Discrimination in JSNS²', Progress of Theoretical and Experimental Physics, vol. 2025, no. 2, 023H02. https://doi.org/10.1093/ptep/ptaf016

TY - JOUR

T1 - Pulse Shape Discrimination in JSNS2

AU - Dodo, T.

AU - Cheoun, M. K.

AU - Choi, J. H.

AU - Choi, J. Y.

AU - Goh, J.

AU - Haga, K.

AU - Harada, M.

AU - Hasegawa, S.

AU - Hwang, W.

AU - Iida, T.

AU - Jang, H. I.

AU - Jang, J. S.

AU - Joo, K. K.

AU - Jung, D. E.

AU - Kang, S. K.

AU - Kasugai, Y.

AU - Kawasaki, T.

AU - Kim, E. J.

AU - Kim, J. Y.

AU - Kim, S. B.

AU - Kim, W.

AU - Kinoshita, H.

AU - Konno, T.

AU - Lee, D. H.

AU - Lim, I. T.

AU - Little, C.

AU - Marzec, E.

AU - Maruyama, T.

AU - Masuda, S.

AU - Meigo, S.

AU - Moon, D. H.

AU - Nakano, T.

AU - Niiyama, M.

AU - Nishikawa, K.

AU - Pac, M. Y.

AU - Park, H. W.

AU - Park, J. S.

AU - Park, R. G.

AU - Peeters, S. J.M.

AU - Rott, C.

AU - Sakai, K.

AU - Sakamoto, S.

AU - Shima, T.

AU - Shin, C. D.

AU - Spitz, J.

AU - Suekane, F.

AU - Sugaya, Y.

AU - Suzuya, K.

AU - Takeuchi, Y.

AU - Yamaguchi, Y.

AU - Yeh, M.

AU - Yeo, I. S.

AU - Yoo, C.

AU - Yu, I.

PY - 2025/2/1

Y1 - 2025/2/1

N2 - JSNS2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment that is searching for sterile neutrinos via the observation of appearance oscillations using neutrinos from muon decay-at-rest. For this search, rejecting cosmic-ray-induced neutron events by Pulse Shape Discrimination (PSD) is essential because the JSNS2 detector is located above ground, on the third floor of the building. We have achieved 94.95%0.15% rejection of neutron events while keeping 92.82%1.77% of signal, electron-like events using a data-driven likelihood method. This article will report the PSD technique using the full fiducial volume of the JSNS2 detector.

AB - JSNS2 (J-PARC Sterile Neutrino Search at J-PARC Spallation Neutron Source) is an experiment that is searching for sterile neutrinos via the observation of appearance oscillations using neutrinos from muon decay-at-rest. For this search, rejecting cosmic-ray-induced neutron events by Pulse Shape Discrimination (PSD) is essential because the JSNS2 detector is located above ground, on the third floor of the building. We have achieved 94.95%0.15% rejection of neutron events while keeping 92.82%1.77% of signal, electron-like events using a data-driven likelihood method. This article will report the PSD technique using the full fiducial volume of the JSNS2 detector.

UR - https://www.scopus.com/pages/publications/85218241283

U2 - 10.1093/ptep/ptaf016

DO - 10.1093/ptep/ptaf016

M3 - Article

AN - SCOPUS:85218241283

SN - 2050-3911

VL - 2025

JO - Progress of Theoretical and Experimental Physics

JF - Progress of Theoretical and Experimental Physics

IS - 2

M1 - 023H02

ER -

Pulse Shape Discrimination in JSNS²

Abstract

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