期刊
ASTROPHYSICAL JOURNAL LETTERS
卷 755, 期 1, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/2041-8205/755/1/L4
关键词
astroparticle physics; cosmic rays; neutrinos; telescopes
资金
- Comision Nacional de Energia Atomica, Argentina
- Fundacion Antorchas, Argentina
- Gobierno De La Provincia de Mendoza, Argentina
- Municipalidad de Malargue, Argentina
- NDM Holdings, Argentina
- Valle Las Lenas, Argentina
- Australian Research Council
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil
- Financiadora de Estudos e Projetos (FINEP), Brazil
- Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ), Brazil
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil
- Ministerio de Ciencia e Tecnologia (MCT), Brazil
- AVCR, Czech Republic [AV0Z10100502, AV0Z10100522]
- GAAV, Czech Republic [KJB100100904, MSMT-CRLA08016, LG11044, MEB111003, MSM0021620859, LA08015]
- TACR, Czech Republic [TA01010517]
- Centre de Calcul IN2P3/CNRS, France
- Centre National de la Recherche Scientifique (CNRS), France
- Conseil Regional Ile-de-France, France
- Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS), France
- Departement Sciences de l'Univers (SDU-INSU/CNRS), France
- Bundesministerium fur Bildung und Forschung (BMBF), Germany
- Deutsche Forschungsgemeinschaft (DFG), Germany
- Finanzministerium Baden-Wurttemberg, Germany
- Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Germany
- Ministerium fur Wissenschaft und Forschung, Germany
- Nordrhein-Westfalen, Germany
- Ministerium fur Wissenschaft, Forschung und Kunst, Germany
- Baden-Wurttemberg, Germany
- Istituto Nazionale di Fisica Nucleare (INFN), Italy
- Ministero dell'Istruzione, Italy
- dell'Universita e della Ricerca (MIUR), Italy
- Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico
- Ministerie van Onderwijs, Netherlands
- Cultuur en Wetenschap, Netherlands
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
- Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands
- Ministry of Science and Higher Education, Poland [N N202 200239, N N202 207238]
- Fundacao para a Ciencia e a Tecnologia, Portugal
- Ministry for Higher Education, Science, and Technology
- Slovenian Research Agency, Slovenia
- Comunidad de Madrid, Spain
- Consejeria de Educacion de la Comunidad de Castilla La Mancha, Spain
- FEDER, Spain
- Ministerio de Ciencia e Innovacion, Spain
- Consolider-Ingenio (CPAN), Xunta de Galicia, Spain
- Science and Technology Facilities Council, United Kingdom
- Department of Energy [DE-AC02-07CH11359, DE-FR02-04ER41300]
- National Science Foundation [0450696]
- Grainger Foundation USA
- NAFOSTED, Vietnam
- ALFA-EC/HELEN
- UNESCO
- STFC [ST/J000507/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J000507/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1212538, 1068696, 1068658] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [0900880, 1207605, 1053663, 1068210, 0855623, 855680] Funding Source: National Science Foundation
The surface detector array of the Pierre Auger Observatory can detect neutrinos with energy E-nu between 10(17) eV and 10(20) eV from point-like sources across the sky south of +55 degrees and north of -65 degrees 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 similar to 3.5 years of a full surface detector array for the Earth-skimming channel and similar to 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) . E-nu(-2). from a point-like source, 90% confidence level upper limits for k(PS) at the level of approximate to 5x10(-7) and 2.5x10(-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.
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