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.
Documento: | Artículo |
Título: | Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory |
Autor: | Multitudinario:502 |
Filiación: | LIP, Instituto Superior Técnico, Technical University of Lisbon, Lisbon, Portugal Istituto di Fisica Dello Spazio Interplanetario (INAF), Università di Torino and Sezione INFN, Torino, Italy Fermilab, Batavia, IL, United States Universidade de São Paulo, Instituto de Física, São Paulo, SP, Brazil Laboratoire AstroParticule et Cosmologie (APC), Université Paris 7, CNRS-IN2P3, Paris, France Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina New York University, New York, NY, United States Ohio State University, Columbus, OH, United States Universidad Nacional Autonoma de Mexico, Mexico, D.F., Mexico Universidad de Santiago de Compostela, Spain Università di Napoli Federico II, Sezione INFN, Napoli, Italy IMAPP, Radboud University, Nijmegen, Netherlands University of Wisconsin, Milwaukee, WI, United States Rudjer Boković Institute, 10000 Zagreb, Croatia Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (INAF), Palermo, Italy Universidad Complutense de Madrid, Madrid, Spain Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France Karlsruhe Institute of Technology - Campus South, Institut für Experimentelle Kernphysik (IEKP), Karlsruhe, Germany Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier, CNRS-IN2P3, Grenoble, France Pierre Auger Southern Observatory and Comisión Nacional de Energía Atómica, Malargüe, Argentina Universität Siegen, Siegen, Germany Karlsruhe Institute of Technology - Campus North, Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany University of Adelaide, Adelaide, SA, Australia Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, RJ, Brazil Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris 11, CNRS-IN2P3, Orsay, France Universidade Estadual Do Sudoeste da Bahia, Vitoria da Conquista, BA, Brazil Karlsruhe Institute of Technology - Campus North, Institut für Kernphysik, Karlsruhe, Germany University of New Mexico, Albuquerque, NM, United States Bergische Universität Wuppertal, Wuppertal, Germany SUBATECH, Icole des Mines de Nantes, Université de Nantes, Nantes, France University of Wisconsin, Madison, WI, United States Max-Planck-Institut für Radioastronomie, Bonn, Germany Universidad de Alcalá, Alcalá de Henares (Madrid), Spain Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic Università di Roma II Tor Vergata, Sezione INFN, Roma, Italy Universidade Federal Do Rio de Janeiro, Instituto de Física, Rio de Janeiro, RJ, Brazil Institute of Nuclear Physics PAN, Krakow, Poland Colorado State University, Fort Collins, CO, United States Colorado State University, Pueblo, CO, United States School of Physics and Astronomy, University of Leeds, United Kingdom Universidad de Granada and C.A.F.P.E., Granada, Spain Case Western Reserve University, Cleveland, OH, United States Pennsylvania State University, University Park, PA, United States Università di Catania, Sezione INFN, Catania, Italy Dipartimento di Fisica dell'Università Del Salento, Sezione INFN, Lecce, Italy Università di Torino, Sezione INFN, Torino, Italy Universidade Estadual de Campinas, IFGW, Campinas, SP, Brazil Pierre Auger Southern Observatory, Malargüe, Argentina Nikhef, Science Park, Amsterdam, Netherlands Laboratory for Astroparticle Physics, University of Nova Gorica, Slovenia University of Chicago, Enrico Fermi Institute, Chicago, IL, United States Instituto de Astronomía y Física Del Espacio (CONICET-UBA), Buenos Aires, Argentina Departamento de Física, FCEyN, Universidad de Buenos Aires y CONICET, Argentina Universidade Federal Fluminense, EEIMVR, Volta Redonda, RJ, Brazil Università di Milano, Sezione INFN, Milan, Italy National Technological University, Faculty Mendoza (CONICET/CNEA), Mendoza, Argentina Universidade de São Paulo, Instituto de Física, São Carlos, SP, Brazil Kernfysisch Versneller Instituut, University of Groningen, Groningen, Netherlands Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Orsay, France Michigan Technological University, Houghton, MI, United States Università dell'Aquila, INFN, L'Aquila, Italy Pontifícia Universidade Católica, Rio de Janeiro, RJ, Brazil Institute for Nuclear Science and Technology (INST), Hanoi, Viet Nam IFLP, Universidad Nacional de la Plata, CONICET, La Plata, Argentina RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany Centro Atómico Constituyentes, Buenos Aires, Argentina ASTRON, Dwingeloo, Netherlands J. Stefan Institute, Ljubljana, Slovenia Dipartimento di Fisica dell'Università, INFN, Genova, Italy University of Aód, Aód, Poland INFN, Laboratori Nazionali Del Gran Sasso, Assergi (L'Aquila), Italy Universidade Estadual de Feira de Santana, Brazil Palacky University, RCATM, Olomouc, Czech Republic Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic Louisiana State University, Baton Rouge, LA, United States Universität Hamburg, Hamburg, Germany Universidade Federal Do ABC, Santo André, SP, Brazil Benemérita Universidad Autónoma de Puebla, Puebla, Mexico Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan, Mexico Dipartimento di Ingegneria dell'Innovazione dell'Università Del Salento, Sezione INFN, Lecce, Italy Centro de Investigación y de Estudios Avanzados Del IPN (CINVESTAV), México, D.F., Mexico Southern University, Baton Rouge, LA, United States Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford, United Kingdom Instituto de Física de Rosario (IFIR), CONICET/U.N.R., Facultad de Ciencias Bioquímicas y Farmacéuticas U.N.R., Rosario, Argentina Centro de Investigaciones en Láseres y Aplicaciones CITEFA, CONICET, Argentina Instituto de Física Corpuscular, CSIC-Universitat de València, Valencia, Spain Northeastern University, Boston, MA, United States Universidade Federal da Bahia, Salvador, BA, Brazil University of Nebraska, Lincoln, NE, United States Colorado School of Mines, Golden, CO, United States Argonne National Laboratory, Argonne, IL, United States Università di Palermo, Sezione INFN, Catania, Italy |
Año: | 2011 |
Volumen: | 84 |
Número: | 12 |
DOI: | http://dx.doi.org/10.1103/PhysRevD.84.122005 |
Título revista: | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Título revista abreviado: | Phys Rev D Part Fields Gravit Cosmol |
ISSN: | 15507998 |
CODEN: | PRVDA |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v84_n12_p_Multitudinario |