| Thème(s) : |
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| Titre : |
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Measurement of the proton-air cross-section at $\sqrt{s}=57$ TeV with the Pierre Auger Observatory |
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| Auteur : |
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P. Abreu, M. Avenier1, C. Bérat1, J. Chauvin1, D.H. Koang1, S. Le Coz1, D. Lebrun1, K. Louedec1, F. Montanet1, A. Stutz1, M. Tartare1, A. Bellétoile2, R. Dallier2, P. Lautridou2, V. Marin2, L. Martin2, O. Ravel2, B. Revenu2, D. Allard3, A. Creusot3, G. Decerprit3, C. Lachaud3, E. Parizot3, G. Tristram3, R. Bardenet4, A. Cordier4, S. Dagoret-Campagne4, D. Garcia Gamez4, B. Kégl4, K. Louedec1, 4, D. Monnier Ragaigne4, M. Urban4 |
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| Laboratoire : |
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| équipe(s) de recherche : |
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APC - AHE |
| Résumé : |
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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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| Collaboration/Projet : |
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PIERRE AUGER |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication ou d'écriture : |
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2012 |
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| Nom du périodique : |
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| Physical Review Letters (Phys. Rev. Lett.) |
| Publisher |
American Physical Society |
| ISSN |
0031-9007 (eISSN : 1079-7114) |
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| Volume : |
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109 |
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| Page/Article : |
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062002 |
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| Identifiant local : |
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LPSC12229, SUBATECH-Astro |
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| Commentaire : |
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See paper for full list of authors - 9 pages, 4 figures, Accepted at PRL |
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