Measurement of the proton-air cross section at √s=57TeV with the Pierre Auger observatory
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 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.
(2012).
Measurement of the proton-air cross section at √s=57TeV with the Pierre Auger observatory.
Physical Review Letters,
109(6).
http://doi.org/10.1103/PhysRevLett.109.062002
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/10089