PAMELA results on the cosmic-ray antiproton flux from 60 MeV to 180 GeV in kinetic energy.
Phys Rev Lett
; 105(12): 121101, 2010 Sep 17.
Article
em En
| MEDLINE
| ID: mdl-20867623
ABSTRACT
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 published measurements down to 60 MeV and up to 180 GeV in kinetic energy. During 850 days of data acquisition approximately 1500 antiprotons were observed. The measurements are consistent with purely secondary production of antiprotons in the Galaxy. More precise secondary production models are required for a complete interpretation of the results.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Itália