Measurement of Cosmic-Ray Proton and Antiproton Spectra at Mountain Altitude
arXiv:astro-ph/0306582 · doi:10.1016/j.physletb.2003.10.021
Abstract
Cosmic-ray proton and antiproton spectra were measured at mountain altitude, 2770 m above sea level. We observed more than 2 x 10^5 protons and 10^2 antiprotons in a kinetic energy range between 0.25 and 3.3 GeV. The zenith-angle dependence of proton flux was obtained. The observed spectra were compared with theoretical predictions.
10 pages, 5 figures, Submitted to Phys. Lett. B