Indications of proton-dominated cosmic-ray composition above 1.6 EeV.
Phys Rev Lett
; 104(16): 161101, 2010 Apr 23.
Article
em En
| MEDLINE
| ID: mdl-20482038
ABSTRACT
We report studies of ultrahigh-energy cosmic-ray composition via analysis of depth of air shower maximum (X(max)), for air shower events collected by the High-Resolution Fly's Eye (HiRes) observatory. The HiRes data are consistent with a constant elongation rate d
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MEDLINE
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En
Ano de publicação:
2010
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Article