出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The PAMELA satellite-borne experiment was launched from the Bajkonur cosmodrome in June 2006. The combination of a permanent magnet silicon strip spectrometer and a silicon-tungsten imaging calorimeter allows precision studies of the charged cosmic rays to be conducted over a wide energy range with high statistics. After five years of successfully operation in space, the data gathered by the PAMELA experiment are showing very interesting features in cosmic rays spectra. This paper shortly present the latest measured fluxes of particles (protons, heliums and electrons) and antiparticles (positrons), that may challenge the current paradigm of cosmic-ray acceleration and propagation in the Galaxy.
