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metadata.dc.type: | Artigo de Periódico |
Título : | Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 1017.8 eV |
Otros títulos : | Physical Review -Series d- |
Autor : | Abreu, P. Aab, A. Aglietta, M. Ahn, E. J. Samarai, I. Al Albuquerque, Ivone Freire da Mota e Allekotte, I. Allen, J. Pepe, Iuri Muniz |
metadata.dc.creator: | Abreu, P. Aab, A. Aglietta, M. Ahn, E. J. Samarai, I. Al Albuquerque, Ivone Freire da Mota e Allekotte, I. Allen, J. Pepe, Iuri Muniz |
Resumen : | We report a study of the distributions of the depth of maximum, Xmax, of extensive air-shower profiles with energies above 1017.8 eV as observed with the fluorescence telescopes of the Pierre Auger Observatory. The analysis method for selecting a data sample with minimal sampling bias is described in detail as well as the experimental cross-checks and systematic uncertainties. Furthermore, we discuss the detector acceptance and the resolution of the Xmax measurement and provide parametrizations thereof as a function of energy. The energy dependence of the mean and standard deviation of the Xmax distributions are compared to air-shower simulations for different nuclear primaries and interpreted in terms of the mean and variance of the logarithmic mass distribution at the top of the atmosphere. |
metadata.dc.publisher.country: | Brasil |
metadata.dc.rights: | Acesso Aberto |
URI : | http://repositorio.ufba.br/ri/handle/ri/17213 |
Fecha de publicación : | 2014 |
Aparece en las colecciones: | Artigo Publicado em Periódico (FIS) |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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P. Abreu.pdf | 1,84 MB | Adobe PDF | Visualizar/Abrir |
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