Title of article
Measurement of low-energy antiproton detection efficiency in BESS below 1 GeV
Author/Authors
Asaoka، نويسنده , , Y. and Yoshimura، نويسنده , , K. and Yoshida، نويسنده , , T. and Abe، نويسنده , , K. and Anraku، نويسنده , , K. and Fujikawa، نويسنده , , M. and Fuke، نويسنده , , H. and Haino، نويسنده , , S. and Izumi، نويسنده , , K. and Maeno، نويسنده , , T. and Makida، نويسنده , , Y. and Matsui، نويسنده , , N. and Matsumoto، نويسنده , , H. and Matsunaga، نويسنده , , Deborah H. and Motoki، نويسنده , , M. and Nozaki، نويسنده , , M. and Orito، نويسنده , , S. and Sanuki، نويسنده , , T. and Sasaki، نويسنده , , M. and Shikaze، نويسنده , , Y. and Sonoda، نويسنده , , T. and Suzuki، نويسنده , , J. and Tanaka، نويسنده , , K. and Toki، نويسنده , , Y. and Yamamoto، نويسنده , , A.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
8
From page
170
To page
177
Abstract
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.
Keywords
BESS , Systematic error , Antiproton detection efficiency , KEK PS , Detector simulation , GEANT/GHEISHA
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2002
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2197183
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