Measurement of the Proton-Air Cross Section at s√=57  TeV with the Pierre Auger Observatory

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metadata.dc.type:	Artigo de Periódico
Título :	Measurement of the Proton-Air Cross Section at s√=57 TeV with the Pierre Auger Observatory
Otros títulos :	Physical Review Letters
Autor :	Abreu, P. Aglietta, M. Ahn, E. J. Albuquerque, Ivone Freire da Mota e Allard, D. Allekotte, I. Allen, J. Allison, P. Pepe, Iuri Muniz
metadata.dc.creator:	Abreu, P. Aglietta, M. Ahn, E. J. Albuquerque, Ivone Freire da Mota e Allard, D. Allekotte, I. Allen, J. Allison, P. Pepe, Iuri Muniz
Resumen :	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)+28−36(syst)] mb is found.
metadata.dc.publisher.country:	Brasil
metadata.dc.rights:	Acesso Aberto
URI :	http://repositorio.ufba.br/ri/handle/ri/15243
Fecha de publicación :	2012
Aparece en las colecciones:	Artigo Publicado em Periódico (Química)

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