Measurement of low-energy antiproton detection efficiency in BESS below 1 GeV

Y. Asaoka*, K. Yoshimura, T. Yoshida, K. Abe, K. Anraku, M. Fujikawa, H. Fuke, S. Haino, K. Izumi, T. Maeno, Y. Makida, N. Matsui, H. Matsumoto, H. Matsunaga, M. Motoki, M. Nozaki, S. Orito, T. Sanuki, M. Sasaki, Y. ShikazeT. Sonoda, J. Suzuki, K. Tanaka, Y. Toki, A. Yamamoto

*この研究の対応する著者

研究成果: Article査読

12 被引用数 (Scopus)

抄録

An accelerator experiment was performed using a low-energy antiproton beam to measure antiproton detection efficiency of BESS, a balloon-borne spectrometer with a superconducting solenoid. Measured efficiencies showed good agreement with calculated ones derived from the BESS Monte Carlo simulation based on GEANT/GHEISHA. With detailed verification of the BESS simulation, the relative systematic error of detection efficiency derived from the BESS simulation has been determined to be ±5%, compared with the previous estimation of ±15% which was the dominant uncertainty for measurements of cosmic-ray antiproton flux.

本文言語English
ページ(範囲)170-177
ページ数8
ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
489
1-3
DOI
出版ステータスPublished - 2002 8 21
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 器械工学

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