https://repositorio.ufba.br/handle/ri/6429
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Pepe, Iuri Muniz | - |
dc.contributor.author | Abraham, J. | - |
dc.contributor.author | Abreu, P. | - |
dc.contributor.author | Barroso, S. L. C. | - |
dc.contributor.author | Aglietta, M. | - |
dc.creator | Pepe, Iuri Muniz | - |
dc.creator | Abraham, J. | - |
dc.creator | Abreu, P. | - |
dc.creator | Barroso, S. L. C. | - |
dc.creator | Aglietta, M. | - |
dc.date.accessioned | 2012-07-13T19:00:59Z | - |
dc.date.issued | 2009 | - |
dc.identifier.issn | 0927-6505 | - |
dc.identifier.uri | http://www.repositorio.ufba.br/ri/handle/ri/6429 | - |
dc.description | Trabalho completo: acesso restrito, p.399–406 | pt_BR |
dc.description.abstract | From direct observations of the longitudinal development of ultra-high energy air showers performed with the Pierre Auger Observatory, upper limits of 3.8%, 2.4%, 3.5% and 11.7% (at 95% c.l.) are obtained on the fraction of cosmic-ray photons above 2, 3, 5 and 10 EeV View the MathML source, respectively. These are the first experimental limits on ultra-high energy photons at energies below 10 EeV. The results complement previous constraints on top–down models from array data and they reduce systematic uncertainties in the interpretation of shower data in terms of primary flux, nuclear composition and proton-air cross-section. | pt_BR |
dc.language.iso | en | pt_BR |
dc.publisher | Elsevier | pt_BR |
dc.source | http://dx.doi.org/10.1016/j.astropartphys.2009.04.003 | pt_BR |
dc.title | Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory | pt_BR |
dc.title.alternative | Astroparticle Physics | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.number | v. 31, n. 6 | pt_BR |
dc.embargo.liftdate | 10000-01-01 | - |
Aparece nas coleções: | Artigo Publicado em Periódico (Química) |
Arquivo | Descrição | Tamanho | Formato | |
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(118)1-s2.0-S0927650509000693-main.pdf Restricted Access | 717,43 kB | Adobe PDF | Visualizar/Abrir Solicitar uma cópia |
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