Muon identification in the Belle experiment at KEKB

A. Abashian; K. Abe; K. Abe; P. K. Behera; F. Handa; T. Iijima; Y. Inoue; H. Miyake; T. Nagamine; E. Nakano; S. Narita; L. Piilonen; S. Schrenk; Y. Teramoto; K. Trabelsi; J. G. Wang; M. Yamaga; A. Yamaguchi; Y. Yusa

doi:10.1016/S0168-9002(02)01164-6

Muon identification in the Belle experiment at KEKB

A. Abashian, K. Abe, K. Abe, P. K. Behera, F. Handa, T. Iijima, Y. Inoue, H. Miyake, T. Nagamine, E. Nakano, S. Narita, L. Piilonen, S. Schrenk, Y. Teramoto, K. Trabelsi, J. G. Wang, M. Yamaga, A. Yamaguchi, Y. Yusa

Division of Developmental Research in Education Programs

Research output: Contribution to journal › Article

106 Citations (Scopus)

Abstract

This paper describes the muon identification method and its performance in the Belle experiment at KEKB. Muon and hadron likelihood are calculated for each track using its range and transverse scattering in the K_L-and-muon detector (KLM). We apply a cut on the normalized muon likelihood ℒ_μ to identify the track as a muon. Above the detection threshold of 0.6 GeV/c, the measured muon detection efficiency and pion fake rate are approximately constant for momenta greater than 1.0 and 1.5 GeV/c, respectively. Between 1.0 and 3.0 GeV/c, the averaged muon detection efficiency is 89% and the pion fake rate per track is 1.4% over the KLM acceptance, using the standard selection criterion ℒ_μ0.9.

Original language	English
Pages (from-to)	69-82
Number of pages	14
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	491
Issue number	1-2
DOIs	https://doi.org/10.1016/S0168-9002(02)01164-6
Publication status	Published - 2002 Sep 21

Keywords

Belle detector
KEKB
Muon identification

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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Abashian, A., Abe, K., Abe, K., Behera, P. K., Handa, F., Iijima, T., Inoue, Y., Miyake, H., Nagamine, T., Nakano, E., Narita, S., Piilonen, L., Schrenk, S., Teramoto, Y., Trabelsi, K., Wang, J. G., Yamaga, M., Yamaguchi, A., & Yusa, Y. (2002). Muon identification in the Belle experiment at KEKB. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 491(1-2), 69-82. https://doi.org/10.1016/S0168-9002(02)01164-6

Muon identification in the Belle experiment at KEKB. / Abashian, A.; Abe, K.; Abe, K.; Behera, P. K.; Handa, F.; Iijima, T.; Inoue, Y.; Miyake, H.; Nagamine, T.; Nakano, E.; Narita, S.; Piilonen, L.; Schrenk, S.; Teramoto, Y.; Trabelsi, K.; Wang, J. G.; Yamaga, M.; Yamaguchi, A.; Yusa, Y.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 491, No. 1-2, 21.09.2002, p. 69-82.

Research output: Contribution to journal › Article

Abashian, A, Abe, K, Abe, K, Behera, PK, Handa, F, Iijima, T, Inoue, Y, Miyake, H, Nagamine, T, Nakano, E, Narita, S, Piilonen, L, Schrenk, S, Teramoto, Y, Trabelsi, K, Wang, JG, Yamaga, M, Yamaguchi, A & Yusa, Y 2002, 'Muon identification in the Belle experiment at KEKB', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 491, no. 1-2, pp. 69-82. https://doi.org/10.1016/S0168-9002(02)01164-6

Abashian, A. ; Abe, K. ; Abe, K. ; Behera, P. K. ; Handa, F. ; Iijima, T. ; Inoue, Y. ; Miyake, H. ; Nagamine, T. ; Nakano, E. ; Narita, S. ; Piilonen, L. ; Schrenk, S. ; Teramoto, Y. ; Trabelsi, K. ; Wang, J. G. ; Yamaga, M. ; Yamaguchi, A. ; Yusa, Y. / Muon identification in the Belle experiment at KEKB. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2002 ; Vol. 491, No. 1-2. pp. 69-82.

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AU - Abashian, A.

AU - Abe, K.

AU - Behera, P. K.

AU - Handa, F.

AU - Iijima, T.

AU - Inoue, Y.

AU - Miyake, H.

AU - Nagamine, T.

AU - Nakano, E.

AU - Narita, S.

AU - Piilonen, L.

AU - Schrenk, S.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Wang, J. G.

AU - Yamaga, M.

AU - Yamaguchi, A.

AU - Yusa, Y.

PY - 2002/9/21

Y1 - 2002/9/21

N2 - This paper describes the muon identification method and its performance in the Belle experiment at KEKB. Muon and hadron likelihood are calculated for each track using its range and transverse scattering in the KL-and-muon detector (KLM). We apply a cut on the normalized muon likelihood ℒμ to identify the track as a muon. Above the detection threshold of 0.6 GeV/c, the measured muon detection efficiency and pion fake rate are approximately constant for momenta greater than 1.0 and 1.5 GeV/c, respectively. Between 1.0 and 3.0 GeV/c, the averaged muon detection efficiency is 89% and the pion fake rate per track is 1.4% over the KLM acceptance, using the standard selection criterion ℒμ0.9.

AB - This paper describes the muon identification method and its performance in the Belle experiment at KEKB. Muon and hadron likelihood are calculated for each track using its range and transverse scattering in the KL-and-muon detector (KLM). We apply a cut on the normalized muon likelihood ℒμ to identify the track as a muon. Above the detection threshold of 0.6 GeV/c, the measured muon detection efficiency and pion fake rate are approximately constant for momenta greater than 1.0 and 1.5 GeV/c, respectively. Between 1.0 and 3.0 GeV/c, the averaged muon detection efficiency is 89% and the pion fake rate per track is 1.4% over the KLM acceptance, using the standard selection criterion ℒμ0.9.

KW - Belle detector

KW - KEKB

KW - Muon identification

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