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

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208 Citazioni (Scopus)

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.
Lingua originaleEnglish
pagine (da-a)062002-
Numero di pagine9
RivistaPhysical Review Letters
Volume109
Stato di pubblicazionePublished - 2012

All Science Journal Classification (ASJC) codes

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