Measurement of the proton-air cross-section at $\sqrt{s}=57$ TeV 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. Analysing the tail of the distribution of the shower maxima, a proton-air cross-section of $[505\pm22(stat)^{+28}_{-36}(sys)]$ mb is found.
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http://hal.in2p3.fr/in2p3-00723317
Contributeur : Emmanuelle Vernay <>
Soumis le : jeudi 9 août 2012 - 08:33:03
Dernière modification le : jeudi 7 décembre 2017 - 01:23:50

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P. Abreu, M. Avenier, C. Bérat, J. Chauvin, D.H. Koang, et al.. Measurement of the proton-air cross-section at $\sqrt{s}=57$ TeV with the Pierre Auger Observatory. Physical Review Letters, American Physical Society, 2012, 109, pp.062002. 〈10.1103/PhysRevLett.109.062002〉. 〈in2p3-00723317〉

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