Measurement of the proton-air cross section at âs=57 TeV with the Pierre Auger Observatory.
Phys Rev Lett
; 109(6): 062002, 2012 Aug 10.
Article
em En
| MEDLINE
| ID: mdl-23006259
ABSTRACT
We report a measurement of the proton-air cross section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the distribution of the depths of shower maxima observed with the Pierre Auger Observatory systematic uncertainties are studied in detail. Analyzing the tail of the distribution of the shower maxima, a proton-air cross section of [505±22(stat)(-36)(+28)(syst)] mb is found.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Portugal