Please use this identifier to cite or link to this item:
https://repositorio.ufba.br/handle/ri/15305
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DC Field | Value | Language |
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dc.contributor.author | Abreu, P. | - |
dc.contributor.author | Aglietta, M. | - |
dc.contributor.author | Ahlers, M. | - |
dc.contributor.author | Ahn, E. J. | - |
dc.contributor.author | Albuquerque, Ivone Freire da Mota e | - |
dc.contributor.author | Allard, D. | - |
dc.contributor.author | Allekotte, I. | - |
dc.contributor.author | Allen, J. | - |
dc.contributor.author | Allison, P. | - |
dc.contributor.author | Pepe, Iuri Muniz | - |
dc.creator | Abreu, P. | - |
dc.creator | Aglietta, M. | - |
dc.creator | Ahlers, M. | - |
dc.creator | Ahn, E. J. | - |
dc.creator | Albuquerque, Ivone Freire da Mota e | - |
dc.creator | Allard, D. | - |
dc.creator | Allekotte, I. | - |
dc.creator | Allen, J. | - |
dc.creator | Allison, P. | - |
dc.creator | Pepe, Iuri Muniz | - |
dc.date.accessioned | 2014-07-28T12:27:15Z | - |
dc.date.available | 2014-07-28T12:27:15Z | - |
dc.date.issued | 2012 | - |
dc.identifier.issn | 2041-8205 | - |
dc.identifier.uri | http://repositorio.ufba.br/ri/handle/ri/15305 | - |
dc.description | Texto completo: acesso restrito. p. 1-7 | pt_BR |
dc.description.abstract | The surface detector array of the Pierre Auger Observatory can detect neutrinos with energy E ν between 1017 eV and 1020 eV from point-like sources across the sky south of +55° and north of –65° declinations. A search has been performed for highly inclined extensive air showers produced by the interaction of neutrinos of all flavors in the atmosphere (downward-going neutrinos), and by the decay of tau leptons originating from tau neutrino interactions in Earth's crust (Earth-skimming neutrinos). No candidate neutrinos have been found in data up to 2010 May 31. This corresponds to an equivalent exposure of ~3.5 years of a full surface detector array for the Earth-skimming channel and ~2 years for the downward-going channel. An improved upper limit on the diffuse flux of tau neutrinos has been derived. Upper limits on the neutrino flux from point-like sources have been derived as a function of the source declination. Assuming a differential neutrino flux k PS centerdot E –2 ν from a point-like source, 90% confidence level upper limits for k PS at the level of ≈5 × 10–7 and 2.5 × 10–6 GeV cm–2 s–1 have been obtained over a broad range of declinations from the searches for Earth-skimming and downward-going neutrinos, respectively. | pt_BR |
dc.language.iso | en | pt_BR |
dc.rights | Acesso Aberto | pt_BR |
dc.source | http://dx.doi.org/ doi:10.1088/2041-8205/755/1/L4 | pt_BR |
dc.subject | Astroparticle physics | pt_BR |
dc.subject | Cosmic rays | pt_BR |
dc.subject | Neutrinos | pt_BR |
dc.subject | Telescopes | pt_BR |
dc.title | Search for point-like sources of ultra-high energy neutrinos at the Pierre auger observatory and improved limit on the diffuse flux of tau neutrinos | pt_BR |
dc.title.alternative | Astrophysical Journal Letters | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.number | v. 755, n. 1 | pt_BR |
dc.publisher.country | Brasil | pt_BR |
Appears in Collections: | Artigo Publicado em Periódico (Química) |
Files in This Item:
File | Description | Size | Format | |
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P. Abreu.pdf | 413,5 kB | Adobe PDF | View/Open |
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