Absolute calibration of the antiproton detection efficiency for BESS below 1 GeV
نویسندگان
چکیده
An accelerator beam experiment was performed using a low-energy antiproton beam to measure the antiproton detection efficiency of the BESS detector. Measured and calculated efficiencies derived from the BESS Monte Carlo simulation based on geant/gheisha showed good agreement. With the detailed verification of the BESS simulation, results demonstrate that the relative systematic error of detection efficiency derived from the BESS simulation is within ± 5%, being previously estimated as ± 15% which was the dominant uncertainty for measurements of cosmic-ray antiproton flux.
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