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.

Measurement of the proton-air cross-section at sqrt(s) = 57 TeV with the Pierre Auger Observatory

COLUCCIA, MARIA RITA;DE MITRI, Ivan;MARSELLA, GIOVANNI;MARTELLO, Daniele;PERRONE, Lorenzo;
2012-01-01

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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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11587/371216
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