Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory

Neutrinos in the cosmic ray flux with energies near 1 EeV and above are detectable with the Surface Detector array (SD) of the Pierre Auger Observatory. We report here on searches through Auger data from 1 January 2004 until 20 June 2013. No neutrino candidates were found, yielding a limit to the di...

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Detalles Bibliográficos
Autores principales:	Dova, María Teresa, Hansen, Patricia María, Jarne, Cecilia Gisele, Mariazzi, Analisa Gabriela, Sciutto, Sergio Juan, Wahlberg, Hernán Pablo, The Pierre Auger Collaboration
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2015
Materias:	Física Neutrino, muon, pion, and other elementary particle detectors; cosmic ray detectors Neutrino, muon, pion, and other elementary particles; cosmic rays Cosmic rays
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/133047
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-133047
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Física Neutrino, muon, pion, and other elementary particle detectors; cosmic ray detectors Neutrino, muon, pion, and other elementary particles; cosmic rays Cosmic rays
spellingShingle	Física Neutrino, muon, pion, and other elementary particle detectors; cosmic ray detectors Neutrino, muon, pion, and other elementary particles; cosmic rays Cosmic rays Dova, María Teresa Hansen, Patricia María Jarne, Cecilia Gisele Mariazzi, Analisa Gabriela Sciutto, Sergio Juan Wahlberg, Hernán Pablo The Pierre Auger Collaboration Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
topic_facet	Física Neutrino, muon, pion, and other elementary particle detectors; cosmic ray detectors Neutrino, muon, pion, and other elementary particles; cosmic rays Cosmic rays
description	Neutrinos in the cosmic ray flux with energies near 1 EeV and above are detectable with the Surface Detector array (SD) of the Pierre Auger Observatory. We report here on searches through Auger data from 1 January 2004 until 20 June 2013. No neutrino candidates were found, yielding a limit to the diffuse flux of ultrahigh energy neutrinos that challenges the Waxman-Bahcall bound predictions. Neutrino identification is attempted using the broad time structure of the signals expected in the SD stations, and is efficiently done for neutrinos of all flavors interacting in the atmosphere at large zenith angles, as well as for "Earth-skimming" neutrino interactions in the case of tau neutrinos. In this paper the searches for downward-going neutrinos in the zenith angle bins 60°-75°and 75°-90°as well as for upward-going neutrinos, are combined to give a single limit. The 90% C.L. single-flavor limit to the diffuse flux of ultrahigh energy neutrinos with an E⁻² spectrum in the energy range 1.0 × 10¹⁷ eV-2.5 × 10¹⁹ eV is E²<sub>ν</sub>dN<sub>ν</sub>/dE<sub>ν</sub> < 6.4 × 10⁻⁹ GeVcm⁻² s⁻¹ sr⁻¹.
format	Articulo Articulo
author	Dova, María Teresa Hansen, Patricia María Jarne, Cecilia Gisele Mariazzi, Analisa Gabriela Sciutto, Sergio Juan Wahlberg, Hernán Pablo The Pierre Auger Collaboration
author_facet	Dova, María Teresa Hansen, Patricia María Jarne, Cecilia Gisele Mariazzi, Analisa Gabriela Sciutto, Sergio Juan Wahlberg, Hernán Pablo The Pierre Auger Collaboration
author_sort	Dova, María Teresa
title	Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
title_short	Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
title_full	Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
title_fullStr	Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
title_full_unstemmed	Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
title_sort	improved limit to the diffuse flux of ultrahigh energy neutrinos from the pierre auger observatory
publishDate	2015
url	http://sedici.unlp.edu.ar/handle/10915/133047
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bdutipo_str	Repositorios
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Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory

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