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

Authors

P. Abreu, LIP - LisboaFollow
M. Aglietta, Università degli Studi di TorinoFollow
E. J. Ahn, Fermi National Accelerator LaboratoryFollow
I. F.M. Albuquerque, Universidade de São PauloFollow
D. Allard, APC - AstroParticule et CosmologieFollow
I. Allekotte, Instituto BalseiroFollow
J. Allen, New York UniversityFollow
P. Allison, The Ohio State UniversityFollow
A. Almeda, Universidad Tecnologica Nacional
J. Alvarez Castillo, Universidad Nacional Autónoma de MéxicoFollow
J. Alvarez-Muñiz, Universidad de Santiago de CompostelaFollow
M. Ambrosio, Università degli Studi di Napoli Federico IIFollow
A. Aminaei, Radboud UniversiteitFollow
L. Anchordoqui, University of Wisconsin-MilwaukeeFollow
S. Andringa, LIP - LisboaFollow
T. Antičić, Institute Ruder Boskovic
C. Aramo, Università degli Studi di Napoli Federico II
E. Arganda, Universidad Nacional de La Plata
F. Arqueros, Universidad Complutense de Madrid
H. Asorey, Instituto Balseiro
P. Assis, LIP - Lisboa
J. Aublin, Laboratoire de Physique Nucléaire et de Hautes Energies
M. Ave, Karlsruher Institut für Technologie, Campus Süd
M. Avenier, Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
G. Avila, Pierre Auger Observatory
T. Bäcker, Universität Siegen
M. Balzer, Karlsruher Institut für Technologie, Campus Nord
K. B. Barber, The University of Adelaide
A. F. Barbosa, Centro Brasileiro de Pesquisas Físicas
R. Bardenet, Laboratoire de l'Accélérateur Linéaire
S. L.C. Barroso, Universidade Estadual do Sudoeste da Bahia
B. Baughman, The Ohio State University
J. Bäuml, Karlsruher Institut für Technologie, Campus Nord

Document Type

Article

Publication Date

8-10-2012

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.

Publication Source (Journal or Book title)

Physical Review Letters

Recommended Citation

Abreu, P., Aglietta, M., Ahn, E., Albuquerque, I., Allard, D., Allekotte, I., Allen, J., Allison, P., Almeda, A., Alvarez Castillo, J., Alvarez-Muñiz, J., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Antičić, T., Aramo, C., Arganda, E., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Bäcker, T., Balzer, M., Barber, K., Barbosa, A., Bardenet, R., Barroso, S., Baughman, B., & Bäuml, J. (2012). Measurement of the proton-air cross section at √s=57TeV with the Pierre Auger observatory. Physical Review Letters, 109 (6) https://doi.org/10.1103/PhysRevLett.109.062002