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. KimW. 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

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

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 - http://www.scopus.com/inward/record.url?scp=85218241283&partnerID=8YFLogxK

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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