| Measurement of Cosmic-Ray Proton, Antiproton and Muon Spectra at Mountain Altitude (2003) | |||||||||
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Abstract | |||||||||
| Measurement of cosmic-ray proton, antiproton and muon spectra was carried out at mountain altitude. We observed 2 x 10^5 protons and 10^2 antiprotons in a kinetic energy region of 0.25 -- 3.3 GeV. Zenith-angle dependence of proton fluxes was obtained. Atmospheric muon spectra were measured simultaneously. The observed antiproton spectrum showed some deviation from theoretical predictions particularly in a low energy region.. Comment: To be published in the proceedings of ICRC2003 | |||||||||
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