Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory
The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavors above 0.1 EeV. These interact through charged and neutral currents in the atmosphere giving rise to extensive air showers. When interacting deeply in the atmosphere at nearly horizontal incidence, neutrinos...
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todo:paper_15507998_v84_n12_p_Multitudinario2023-10-03T16:24:30Z Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory Multitudinario:502 The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavors above 0.1 EeV. These interact through charged and neutral currents in the atmosphere giving rise to extensive air showers. When interacting deeply in the atmosphere at nearly horizontal incidence, neutrinos can be distinguished from regular hadronic cosmic rays by the broad time structure of their shower signals in the water-Cherenkov detectors. In this paper we present for the first time an analysis based on down-going neutrinos. We describe the search procedure, the possible sources of background, the method to compute the exposure and the associated systematic uncertainties. No candidate neutrinos have been found in data collected from 1 January 2004 to 31 May 2010. Assuming an E - 2 differential energy spectrum the limit on the single-flavor neutrino is E2dN/dE<1.74×10 - 7GeVcm - 2s - 1sr - 1 at 90% C.L. in the energy range 1×1017eV<E<1×1020eV. © 2011 American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15507998_v84_n12_p_Multitudinario |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavors above 0.1 EeV. These interact through charged and neutral currents in the atmosphere giving rise to extensive air showers. When interacting deeply in the atmosphere at nearly horizontal incidence, neutrinos can be distinguished from regular hadronic cosmic rays by the broad time structure of their shower signals in the water-Cherenkov detectors. In this paper we present for the first time an analysis based on down-going neutrinos. We describe the search procedure, the possible sources of background, the method to compute the exposure and the associated systematic uncertainties. No candidate neutrinos have been found in data collected from 1 January 2004 to 31 May 2010. Assuming an E - 2 differential energy spectrum the limit on the single-flavor neutrino is E2dN/dE<1.74×10 - 7GeVcm - 2s - 1sr - 1 at 90% C.L. in the energy range 1×1017eV<E<1×1020eV. © 2011 American Physical Society. |
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JOUR |
| author |
Multitudinario:502 |
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Multitudinario:502 Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory |
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Multitudinario:502 |
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Multitudinario:502 |
| title |
Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory |
| title_short |
Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory |
| title_full |
Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory |
| title_fullStr |
Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory |
| title_full_unstemmed |
Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory |
| title_sort |
search for ultrahigh energy neutrinos in highly inclined events at the pierre auger observatory |
| url |
http://hdl.handle.net/20.500.12110/paper_15507998_v84_n12_p_Multitudinario |
| work_keys_str_mv |
AT multitudinario502 searchforultrahighenergyneutrinosinhighlyinclinedeventsatthepierreaugerobservatory |
| _version_ |
1807322956236324864 |