Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter

Y. Sugiyama; J. K. Ahn; S. Banno; B. Beckford; M. Campbell; S. H. Chen; J. Comfort; Y. T. Duh; T. Hineno; Y. B. Hsiung; M. Hutcheson; E. Iwai; I. Kamiji; N. Kawasaki; E. J. Kim; J. L. Kim; Y. J. Kim; J. W. Ko; T. K. Komatsubara; A. S. Kurilin; J. W. Lee; S. K. Lee; G. Y. Lim; C. Lin; Q. Lin; Y. Luo; J. Ma; Y. Maeda; T. Masuda; T. Matsumura; D. Mcfarland; R. Murayama; D. Naito; K. Nakagiri; Y. Nakaya; H. Nanjo; T. Nomura; Y. Odani; J. C. Redeker; Y. D. Ri; N. Sasao; K. Sato; S. Seki; T. Shimogawa; T. Shinkawa; S. Shinohara; K. Shiomi; S. Su; S. Suzuki; Y. Tajima; G. Takahashi; Y. Takashima; M. Tecchio; M. Togawa; Y. C. Tung; Y. W. Wah; H. Watanabe; N. Whallon; J. K. Woo; J. Xu; T. Yamanaka; Y. Yanagida; H. Y. Yoshida; H. Yoshimoto

doi:10.1016/j.nima.2020.164825

Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter

Y. Sugiyama, J. K. Ahn, S. Banno, B. Beckford, M. Campbell, S. H. Chen, J. Comfort, Y. T. Duh, T. Hineno, Y. B. Hsiung, M. Hutcheson, E. Iwai, I. Kamiji, N. Kawasaki, E. J. Kim, J. L. Kim, Y. J. Kim, J. W. Ko, T. K. Komatsubara, A. S. KurilinJ. W. Lee, S. K. Lee, G. Y. Lim, C. Lin, Q. Lin, Y. Luo, J. Ma, Y. Maeda, T. Masuda, T. Matsumura, D. Mcfarland, R. Murayama, D. Naito, K. Nakagiri, Y. Nakaya, H. Nanjo, T. Nomura, Y. Odani, J. C. Redeker, Y. D. Ri, N. Sasao, K. Sato, S. Seki, T. Shimogawa, T. Shinkawa, S. Shinohara, K. Shiomi, S. Su, S. Suzuki, Y. Tajima, G. Takahashi, Y. Takashima, M. Tecchio, M. Togawa, Y. C. Tung, Y. W. Wah, H. Watanabe, N. Whallon, J. K. Woo, J. Xu, T. Yamanaka, Y. Yanagida, H. Y. Yoshida, H. Yoshimoto

異分野基礎科学研究所

研究成果 › 査読

2 被引用数 (Scopus)

抄録

A pulse shape difference between photons and neutrons was observed in the output signals of scintillation light from the un-doped CsI calorimeter of the KOTO experiment for the K_L→π⁰νν̄ decay. We developed a discrimination method to reject neutrons and to accept photons in the deposited energy range from 0.1 to 2 GeV. The method rejects 67% of neutron-induced single hadronic clusters and 86% of neutron-induced two-cluster events while keeping more than 90% of photon-induced single electromagnetic clusters and two-photon events.

本文言語	English
論文番号	164825
ジャーナル	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
巻	987
DOI	https://doi.org/10.1016/j.nima.2020.164825
出版ステータス	Published - 1月 21 2021

ASJC Scopus subject areas

核物理学および高エネルギー物理学
器械工学

文献へのアクセス

10.1016/j.nima.2020.164825

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引用スタイル

Sugiyama, Y., Ahn, J. K., Banno, S., Beckford, B., Campbell, M., Chen, S. H., Comfort, J., Duh, Y. T., Hineno, T., Hsiung, Y. B., Hutcheson, M., Iwai, E., Kamiji, I., Kawasaki, N., Kim, E. J., Kim, J. L., Kim, Y. J., Ko, J. W., Komatsubara, T. K., ... Yoshimoto, H. (2021). Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 987, [164825]. https://doi.org/10.1016/j.nima.2020.164825

Sugiyama, Y, Ahn, JK, Banno, S, Beckford, B, Campbell, M, Chen, SH, Comfort, J, Duh, YT, Hineno, T, Hsiung, YB, Hutcheson, M, Iwai, E, Kamiji, I, Kawasaki, N, Kim, EJ, Kim, JL, Kim, YJ, Ko, JW, Komatsubara, TK, Kurilin, AS, Lee, JW, Lee, SK, Lim, GY, Lin, C, Lin, Q, Luo, Y, Ma, J, Maeda, Y, Masuda, T, Matsumura, T, Mcfarland, D, Murayama, R, Naito, D, Nakagiri, K, Nakaya, Y, Nanjo, H, Nomura, T, Odani, Y, Redeker, JC, Ri, YD, Sasao, N, Sato, K, Seki, S, Shimogawa, T, Shinkawa, T, Shinohara, S, Shiomi, K, Su, S, Suzuki, S, Tajima, Y, Takahashi, G, Takashima, Y, Tecchio, M, Togawa, M, Tung, YC, Wah, YW, Watanabe, H, Whallon, N, Woo, JK, Xu, J, Yamanaka, T, Yanagida, Y, Yoshida, HY & Yoshimoto, H 2021, 'Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 987, 164825. https://doi.org/10.1016/j.nima.2020.164825

Sugiyama Y, Ahn JK, Banno S, Beckford B, Campbell M, Chen SH その他. Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2021 1月 21;987:164825. doi: 10.1016/j.nima.2020.164825

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title = "Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter",

abstract = "A pulse shape difference between photons and neutrons was observed in the output signals of scintillation light from the un-doped CsI calorimeter of the KOTO experiment for the KL→π0ν{\=ν} decay. We developed a discrimination method to reject neutrons and to accept photons in the deposited energy range from 0.1 to 2 GeV. The method rejects 67% of neutron-induced single hadronic clusters and 86% of neutron-induced two-cluster events while keeping more than 90% of photon-induced single electromagnetic clusters and two-photon events.",

keywords = "Calorimeter, CsI crystal, Pulse shape discrimination, Rare kaon decay, Waveform analysis",

author = "Y. Sugiyama and Ahn, {J. K.} and S. Banno and B. Beckford and M. Campbell and Chen, {S. H.} and J. Comfort and Duh, {Y. T.} and T. Hineno and Hsiung, {Y. B.} and M. Hutcheson and E. Iwai and I. Kamiji and N. Kawasaki and Kim, {E. J.} and Kim, {J. L.} and Kim, {Y. J.} and Ko, {J. W.} and Komatsubara, {T. K.} and Kurilin, {A. S.} and Lee, {J. W.} and Lee, {S. K.} and Lim, {G. Y.} and C. Lin and Q. Lin and Y. Luo and J. Ma and Y. Maeda and T. Masuda and T. Matsumura and D. Mcfarland and R. Murayama and D. Naito and K. Nakagiri and Y. Nakaya and H. Nanjo and T. Nomura and Y. Odani and Redeker, {J. C.} and Ri, {Y. D.} and N. Sasao and K. Sato and S. Seki and T. Shimogawa and T. Shinkawa and S. Shinohara and K. Shiomi and S. Su and S. Suzuki and Y. Tajima and G. Takahashi and Y. Takashima and M. Tecchio and M. Togawa and Tung, {Y. C.} and Wah, {Y. W.} and H. Watanabe and N. Whallon and Woo, {J. K.} and J. Xu and T. Yamanaka and Y. Yanagida and Yoshida, {H. Y.} and H. Yoshimoto",

note = "Funding Information: This work was supported by KEK, MEXT/JSPS KAKENHI Grant Numbers JP18071006 , JP23224007 , JP16H06343 , and through the Japan/US Cooperation Program; DOE Grant Numbers DE-SC0002644 , DE-SC0006497 , DE-SC0007859 , DE-SC0009798 ; National Science Council/Ministry of Science and Technology in Taiwan under Grant Numbers 99-2112-M-002-014-MY3 and 102-2112-M-002-017 ; and the National Research Foundation of Korea ( 2013K1A3A7A06056592 (Center of Korean J-PARC Users), 2018R1A5A102556313 , 2019R1A2C1084552 ). Some of the authors were supported by Grant-in-Aid for JSPS Fellows. Funding Information: We would like to express our gratitude to the KEK Computer Research Center and the Network and Computing Service Center of Yamagata University for the computer and network resources. We would like to thank the National Institute of Informatics (NII) for the SINET4 network support. We also would like to appreciate all members of the J-PARC Accelerator and Hadron Experimental Facility groups for their supports. This work was supported by KEK, MEXT/JSPS KAKENHI Grant Numbers JP18071006, JP23224007, JP16H06343, and through the Japan/US Cooperation Program; DOE Grant Numbers DE-SC0002644, DE-SC0006497, DE-SC0007859, DE-SC0009798; National Science Council/Ministry of Science and Technology in Taiwan under Grant Numbers 99-2112-M-002-014-MY3 and 102-2112-M-002-017; and the National Research Foundation of Korea (2013K1A3A7A06056592 (Center of Korean J-PARC Users), 2018R1A5A102556313,2019R1A2C1084552). Some of the authors were supported by Grant-in-Aid for JSPS Fellows. Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

month = jan,

day = "21",

doi = "10.1016/j.nima.2020.164825",

language = "English",

volume = "987",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier",

}

TY - JOUR

T1 - Pulse shape discrimination of photons and neutrons in the energy range of 0.1 – 2 GeV with the KOTO un-doped CsI calorimeter

AU - Sugiyama, Y.

AU - Ahn, J. K.

AU - Banno, S.

AU - Beckford, B.

AU - Campbell, M.

AU - Chen, S. H.

AU - Comfort, J.

AU - Duh, Y. T.

AU - Hineno, T.

AU - Hsiung, Y. B.

AU - Hutcheson, M.

AU - Iwai, E.

AU - Kamiji, I.

AU - Kawasaki, N.

AU - Kim, E. J.

AU - Kim, J. L.

AU - Kim, Y. J.

AU - Ko, J. W.

AU - Komatsubara, T. K.

AU - Kurilin, A. S.

AU - Lee, J. W.

AU - Lee, S. K.

AU - Lim, G. Y.

AU - Lin, C.

AU - Lin, Q.

AU - Luo, Y.

AU - Ma, J.

AU - Maeda, Y.

AU - Masuda, T.

AU - Matsumura, T.

AU - Mcfarland, D.

AU - Murayama, R.

AU - Naito, D.

AU - Nakagiri, K.

AU - Nakaya, Y.

AU - Nanjo, H.

AU - Nomura, T.

AU - Odani, Y.

AU - Redeker, J. C.

AU - Ri, Y. D.

AU - Sasao, N.

AU - Sato, K.

AU - Seki, S.

AU - Shimogawa, T.

AU - Shinkawa, T.

AU - Shinohara, S.

AU - Shiomi, K.

AU - Su, S.

AU - Suzuki, S.

AU - Tajima, Y.

AU - Takahashi, G.

AU - Takashima, Y.

AU - Tecchio, M.

AU - Togawa, M.

AU - Tung, Y. C.

AU - Wah, Y. W.

AU - Watanabe, H.

AU - Whallon, N.

AU - Woo, J. K.

AU - Xu, J.

AU - Yamanaka, T.

AU - Yanagida, Y.

AU - Yoshida, H. Y.

AU - Yoshimoto, H.

N1 - Funding Information: This work was supported by KEK, MEXT/JSPS KAKENHI Grant Numbers JP18071006 , JP23224007 , JP16H06343 , and through the Japan/US Cooperation Program; DOE Grant Numbers DE-SC0002644 , DE-SC0006497 , DE-SC0007859 , DE-SC0009798 ; National Science Council/Ministry of Science and Technology in Taiwan under Grant Numbers 99-2112-M-002-014-MY3 and 102-2112-M-002-017 ; and the National Research Foundation of Korea ( 2013K1A3A7A06056592 (Center of Korean J-PARC Users), 2018R1A5A102556313 , 2019R1A2C1084552 ). Some of the authors were supported by Grant-in-Aid for JSPS Fellows. Funding Information: We would like to express our gratitude to the KEK Computer Research Center and the Network and Computing Service Center of Yamagata University for the computer and network resources. We would like to thank the National Institute of Informatics (NII) for the SINET4 network support. We also would like to appreciate all members of the J-PARC Accelerator and Hadron Experimental Facility groups for their supports. This work was supported by KEK, MEXT/JSPS KAKENHI Grant Numbers JP18071006, JP23224007, JP16H06343, and through the Japan/US Cooperation Program; DOE Grant Numbers DE-SC0002644, DE-SC0006497, DE-SC0007859, DE-SC0009798; National Science Council/Ministry of Science and Technology in Taiwan under Grant Numbers 99-2112-M-002-014-MY3 and 102-2112-M-002-017; and the National Research Foundation of Korea (2013K1A3A7A06056592 (Center of Korean J-PARC Users), 2018R1A5A102556313,2019R1A2C1084552). Some of the authors were supported by Grant-in-Aid for JSPS Fellows. Publisher Copyright: © 2020 Elsevier B.V.

PY - 2021/1/21

Y1 - 2021/1/21

N2 - A pulse shape difference between photons and neutrons was observed in the output signals of scintillation light from the un-doped CsI calorimeter of the KOTO experiment for the KL→π0νν̄ decay. We developed a discrimination method to reject neutrons and to accept photons in the deposited energy range from 0.1 to 2 GeV. The method rejects 67% of neutron-induced single hadronic clusters and 86% of neutron-induced two-cluster events while keeping more than 90% of photon-induced single electromagnetic clusters and two-photon events.

AB - A pulse shape difference between photons and neutrons was observed in the output signals of scintillation light from the un-doped CsI calorimeter of the KOTO experiment for the KL→π0νν̄ decay. We developed a discrimination method to reject neutrons and to accept photons in the deposited energy range from 0.1 to 2 GeV. The method rejects 67% of neutron-induced single hadronic clusters and 86% of neutron-induced two-cluster events while keeping more than 90% of photon-induced single electromagnetic clusters and two-photon events.

KW - Calorimeter

KW - CsI crystal

KW - Pulse shape discrimination

KW - Rare kaon decay

KW - Waveform analysis

UR - http://www.scopus.com/inward/record.url?scp=85096177904&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85096177904&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2020.164825

DO - 10.1016/j.nima.2020.164825

M3 - Article

AN - SCOPUS:85096177904

SN - 0168-9002

VL - 987

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

M1 - 164825

ER -