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metadata.dc.type: | Artigo de Periódico |
Title: | Upper limit on the diffuse flux of ultrahigh energy tau neutrinos from the pierre auger observatory |
Other Titles: | Physical Review Letters |
Authors: | Pepe, Iuri Muniz Abraham, J. Abreu, P. Aglietta, M. Aguirre, C. |
metadata.dc.creator: | Pepe, Iuri Muniz Abraham, J. Abreu, P. Aglietta, M. Aguirre, C. |
Abstract: | The surface detector array of the Pierre Auger Observatory is sensitive to Earth-skimming tau neutrinos that interact in Earth’s crust. Tau leptons from ντ charged-current interactions can emerge and decay in the atmosphere to produce a nearly horizontal shower with a significant electromagnetic component. The data collected between 1 January 2004 and 31 August 2007 are used to place an upper limit on the diffuse flux of ντ at EeV energies. Assuming an E−2ν differential energy spectrum the limit set at 90% C.L. is E2νdNντ/dEν<1.3×10−7 GeV cm−2 s−1 sr−1 in the energy range 2×1017 eV<Eν<2×1019 eV. |
metadata.dc.publisher.country: | Brasil |
metadata.dc.rights: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/14610 |
Issue Date: | 2008 |
Appears in Collections: | Artigo Publicado em Periódico (FIS) |
Files in This Item:
File | Description | Size | Format | |
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10.1103PhysRevLett.100.211101.pdf | 202,22 kB | Adobe PDF | View/Open |
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