Measurement of the proton-air cross section at √s=57TeV with the Pierre Auger observatory


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. © 2012 American Physical Society.

Año de publicación:

2012

Keywords:

    Fuente:

    scopusscopus