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Time dependence of the proton flux measured by PAMELA during the July 2006 - December 2009 solar minimum
O. Adriani, G. C. Barbarino, G. A. Bazilevskaya +61
The energy spectra of galactic cosmic rays carry fundamental information regarding their origin and propagation. These spectra, when measured near Earth, are significantly affected…
The discovery of geomagnetically trapped cosmic ray antiprotons
O. Adriani, G. C. Barbarino, G. A. Bazilevskaya +61
The existence of a significant flux of antiprotons confined to Earth's magnetosphere has been considered in several theoretical works. These antiparticles are produced in nuclear i…
PAMELA Measurements of Cosmic-ray Proton and Helium Spectra
O. Adriani, G. C. Barbarino, G. A. Bazilevskaya +62
Protons and helium nuclei are the most abundant components of the cosmic radiation. Precise measurements of their fluxes are needed to understand the acceleration and subsequent pr…
The cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV
PAMELA Collaboration, O. Adriani, G. C. Barbarino +64
Precision measurements of the electron component in the cosmic radiation provide important information about the origin and propagation of cosmic rays in the Galaxy. Here we presen…
PAMELA results on the cosmic-ray antiproton flux from 60 MeV to 180 GeV in kinetic energy
PAMELA Collaboration, O. Adriani, G. C. Barbarino +61
The satellite-borne experiment PAMELA has been used to make a new measurement of the cosmic-ray antiproton flux and the antiproton-to-proton flux ratio which extends previously pub…
A statistical procedure for the identification of positrons in the PAMELA experiment
O. Adriani, G. C. Barbarino, G. A. Bazilevskaya +58
The PAMELA satellite experiment has measured the cosmic-ray positron fraction between 1.5 GeV and 100 GeV. The need to reliably discriminate between the positron signal and proton…