Measurement of the muon beam direction and muon flux for the T2K neutrino experiment

K. Suzuki; S. Aoki; A. Ariga; T. Ariga; F. Bay; C. Bronner; A. Ereditato; M. Friend; M. Hartz; T. Hiraki; A. K. Ichikawa; T. Ishida; T. Ishii; F. Juget; T. Kikawa; T. Kobayashi; H. Kubo; K. Matsuoka; T. Maruyama; A. Minamino; A. Murakami; T. Nakadaira; T. Nakaya; K. Nakayoshi; M. Otani; Y. Oyama; N. Patel; C. Pistillo; K. Sakashita; T. Sekiguchi; S. Y. Suzuki; S. Tada; Y. Yamada; K. Yamamoto; M. Yokoyama

doi:10.1093/ptep/ptv054

Measurement of the muon beam direction and muon flux for the T2K neutrino experiment

K. Suzuki, S. Aoki, A. Ariga, T. Ariga, F. Bay, C. Bronner, A. Ereditato, M. Friend, M. Hartz, T. Hiraki, A. K. Ichikawa, T. Ishida, T. Ishii, F. Juget, T. Kikawa, T. Kobayashi, H. Kubo, K. Matsuoka, T. Maruyama, A. MinaminoA. Murakami, T. Nakadaira, T. Nakaya, K. Nakayoshi, M. Otani, Y. Oyama, N. Patel, C. Pistillo, K. Sakashita, T. Sekiguchi, S. Y. Suzuki, S. Tada, Y. Yamada, K. Yamamoto, M. Yokoyama

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Abstract

The Tokai-to-Kamioka (T2K) neutrino experiment measures neutrino oscillations by using an almost pure muon neutrino beam produced at the J-PARC accelerator facility. The T2K muon monitor was installed to measure the direction and stability of the muon beam which is produced in conjunction with the muon neutrino beam. The systematic error in the muon beam direction measurement was estimated, using data and MC simulation, to be 0.28 mrad. During beam operation, the proton beam has been controlled using measurements from the muon monitor and the direction of the neutrino beam has been tuned to within 0.3 mrad with respect to the designed beam-axis. In order to understand the muon beam properties, measurement of the absolute muon yield at the muon monitor was conducted with an emulsion detector. The number of muon tracks was measured to be (4.06 ± 0.05 ± 0.10) × 10⁴ cm^-2 normalized with 4 × 10¹¹ protons on target with 250 kA horn operation. The result is in agreement with the prediction, which is corrected based on hadron production data.

Original language	English
Article number	053C01
Journal	Progress of Theoretical and Experimental Physics
Volume	2015
Issue number	5
DOIs	https://doi.org/10.1093/ptep/ptv054
Publication status	Published - 2015
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1093/ptep/ptv054

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Suzuki, K., Aoki, S., Ariga, A., Ariga, T., Bay, F., Bronner, C., Ereditato, A., Friend, M., Hartz, M., Hiraki, T., Ichikawa, A. K., Ishida, T., Ishii, T., Juget, F., Kikawa, T., Kobayashi, T., Kubo, H., Matsuoka, K., Maruyama, T., ... Yokoyama, M. (2015). Measurement of the muon beam direction and muon flux for the T2K neutrino experiment. Progress of Theoretical and Experimental Physics, 2015(5), [053C01]. https://doi.org/10.1093/ptep/ptv054

Suzuki, K, Aoki, S, Ariga, A, Ariga, T, Bay, F, Bronner, C, Ereditato, A, Friend, M, Hartz, M, Hiraki, T, Ichikawa, AK, Ishida, T, Ishii, T, Juget, F, Kikawa, T, Kobayashi, T, Kubo, H, Matsuoka, K, Maruyama, T, Minamino, A, Murakami, A, Nakadaira, T, Nakaya, T, Nakayoshi, K, Otani, M, Oyama, Y, Patel, N, Pistillo, C, Sakashita, K, Sekiguchi, T, Suzuki, SY, Tada, S, Yamada, Y, Yamamoto, K & Yokoyama, M 2015, 'Measurement of the muon beam direction and muon flux for the T2K neutrino experiment', Progress of Theoretical and Experimental Physics, vol. 2015, no. 5, 053C01. https://doi.org/10.1093/ptep/ptv054

@article{de31945dad96437faf6b8b0760faab0e,

title = "Measurement of the muon beam direction and muon flux for the T2K neutrino experiment",

abstract = "The Tokai-to-Kamioka (T2K) neutrino experiment measures neutrino oscillations by using an almost pure muon neutrino beam produced at the J-PARC accelerator facility. The T2K muon monitor was installed to measure the direction and stability of the muon beam which is produced in conjunction with the muon neutrino beam. The systematic error in the muon beam direction measurement was estimated, using data and MC simulation, to be 0.28 mrad. During beam operation, the proton beam has been controlled using measurements from the muon monitor and the direction of the neutrino beam has been tuned to within 0.3 mrad with respect to the designed beam-axis. In order to understand the muon beam properties, measurement of the absolute muon yield at the muon monitor was conducted with an emulsion detector. The number of muon tracks was measured to be (4.06 ± 0.05 ± 0.10) × 104 cm-2 normalized with 4 × 1011 protons on target with 250 kA horn operation. The result is in agreement with the prediction, which is corrected based on hadron production data.",

author = "K. Suzuki and S. Aoki and A. Ariga and T. Ariga and F. Bay and C. Bronner and A. Ereditato and M. Friend and M. Hartz and T. Hiraki and Ichikawa, {A. K.} and T. Ishida and T. Ishii and F. Juget and T. Kikawa and T. Kobayashi and H. Kubo and K. Matsuoka and T. Maruyama and A. Minamino and A. Murakami and T. Nakadaira and T. Nakaya and K. Nakayoshi and M. Otani and Y. Oyama and N. Patel and C. Pistillo and K. Sakashita and T. Sekiguchi and Suzuki, {S. Y.} and S. Tada and Y. Yamada and K. Yamamoto and M. Yokoyama",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2015.",

year = "2015",

doi = "10.1093/ptep/ptv054",

language = "English",

volume = "2015",

journal = "Progress of Theoretical and Experimental Physics",

issn = "2050-3911",

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T1 - Measurement of the muon beam direction and muon flux for the T2K neutrino experiment

AU - Suzuki, K.

AU - Aoki, S.

AU - Ariga, A.

AU - Ariga, T.

AU - Bay, F.

AU - Bronner, C.

AU - Ereditato, A.

AU - Friend, M.

AU - Hartz, M.

AU - Hiraki, T.

AU - Ichikawa, A. K.

AU - Ishida, T.

AU - Ishii, T.

AU - Juget, F.

AU - Kikawa, T.

AU - Kobayashi, T.

AU - Kubo, H.

AU - Matsuoka, K.

AU - Maruyama, T.

AU - Minamino, A.

AU - Murakami, A.

AU - Nakadaira, T.

AU - Nakaya, T.

AU - Nakayoshi, K.

AU - Otani, M.

AU - Oyama, Y.

AU - Patel, N.

AU - Pistillo, C.

AU - Sakashita, K.

AU - Sekiguchi, T.

AU - Suzuki, S. Y.

AU - Tada, S.

AU - Yamada, Y.

AU - Yamamoto, K.

AU - Yokoyama, M.

PY - 2015

Y1 - 2015

N2 - The Tokai-to-Kamioka (T2K) neutrino experiment measures neutrino oscillations by using an almost pure muon neutrino beam produced at the J-PARC accelerator facility. The T2K muon monitor was installed to measure the direction and stability of the muon beam which is produced in conjunction with the muon neutrino beam. The systematic error in the muon beam direction measurement was estimated, using data and MC simulation, to be 0.28 mrad. During beam operation, the proton beam has been controlled using measurements from the muon monitor and the direction of the neutrino beam has been tuned to within 0.3 mrad with respect to the designed beam-axis. In order to understand the muon beam properties, measurement of the absolute muon yield at the muon monitor was conducted with an emulsion detector. The number of muon tracks was measured to be (4.06 ± 0.05 ± 0.10) × 104 cm-2 normalized with 4 × 1011 protons on target with 250 kA horn operation. The result is in agreement with the prediction, which is corrected based on hadron production data.

AB - The Tokai-to-Kamioka (T2K) neutrino experiment measures neutrino oscillations by using an almost pure muon neutrino beam produced at the J-PARC accelerator facility. The T2K muon monitor was installed to measure the direction and stability of the muon beam which is produced in conjunction with the muon neutrino beam. The systematic error in the muon beam direction measurement was estimated, using data and MC simulation, to be 0.28 mrad. During beam operation, the proton beam has been controlled using measurements from the muon monitor and the direction of the neutrino beam has been tuned to within 0.3 mrad with respect to the designed beam-axis. In order to understand the muon beam properties, measurement of the absolute muon yield at the muon monitor was conducted with an emulsion detector. The number of muon tracks was measured to be (4.06 ± 0.05 ± 0.10) × 104 cm-2 normalized with 4 × 1011 protons on target with 250 kA horn operation. The result is in agreement with the prediction, which is corrected based on hadron production data.

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U2 - 10.1093/ptep/ptv054

DO - 10.1093/ptep/ptv054

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AN - SCOPUS:84942163291

SN - 2050-3911

VL - 2015

JO - Progress of Theoretical and Experimental Physics

JF - Progress of Theoretical and Experimental Physics

IS - 5

M1 - 053C01

ER -

Measurement of the muon beam direction and muon flux for the T2K neutrino experiment

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