Probing the origin of ultra-high-energy cosmic rays with neutrinos in the EeV energy range using the Pierre Auger Observatory
A. AabIMAPP, Radboud University Nijmegen, Nijmegen, The NetherlandsP. AbreuLaboratório de Instrumentação e Física Experimental de Partículas—LIP and Instituto Superior Técnico—IST, Universidade de Lisboa—UL, Lisboa, PortugalM. AgliettaINFN, Sezione di Torino, Torino, ItalyI.F.M. AlbuquerqueUniversidade de São Paulo, Instituto de Física, São Paulo, SP, BrazilJ.M. AlburyUniversity of Adelaide, Adelaide, S.A., AustraliaI. AllekotteCentro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, ArgentinaA. AlmelaInstituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, ArgentinaJ. Alvarez CastilloUniversidad Nacional Autónoma de México, México, D.F., MéxicoJ. Alvarez-MuñizInstituto Galego de Física de Altas Enerxías (I.G.F.A.E.), Universidad de Santiago de Compostela, Santiago de Compostela, SpainG.A. AnastasiGran Sasso Science Institute, L'Aquila, ItalyL. AnchordoquiDepartment of Physics and Astronomy, Lehman College, City University of New York, Bronx, NY, U.S.AB. AndradaInstituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, ArgentinaS. AndringaLaboratório de Instrumentação e Física Experimental de Partículas—LIP and Instituto Superior Técnico—IST, Universidade de Lisboa—UL, Lisboa, PortugalC. AramoINFN, Sezione di Napoli, Napoli, ItalyH. AsoreyBalseiro InstituteP. AssisLaboratório de Instrumentação e Física Experimental de Partículas—LIP and Instituto Superior Técnico—IST, Universidade de Lisboa—UL, Lisboa, PortugalG. AvilaObservatorio Pierre Auger and Comisión Nacional de Energía Atómica, Malargüe, ArgentinaA.M. BadescuUniversity Politehnica of Bucharest, Bucharest, RomaniaA. BakalovaInstitute of Physics of the Czech Academy of Sciences, Prague, Czech RepublicA. Balaceanu“Horia Hulubei” National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, RomaniaF. BarbatoINFN, Sezione di Napoli, Napoli, ItalyR.J. Barreira LuzLaboratório de Instrumentação e Física Experimental de Partículas—LIP and Instituto Superior Técnico—IST, Universidade de Lisboa—UL, Lisboa, PortugalS. BaurKarlsruhe Institute of Technology, Institut für Kernphysik, Karlsruhe, GermanyK.H. BeckerBergische Universität Wuppertal, Department of Physics, Wuppertal, GermanyJ.A. BellidoUniversity of Adelaide, Adelaide, S.A., AustraliaC. BeratUniversité Grenoble Alpes, CNRS, Grenoble Institute of Engineering Université Grenoble Alpes, LPSC-IN2P3, 38000 Grenoble, France, FranceM.E. BertainaINFN, Sezione di Torino, Torino, ItalyX. BertouCentro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, ArgentinaP.L. BiermannMax-Planck-Institut für Radioastronomie, Bonn, GermanyJ. BiteauInstitut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud, Université Paris/Saclay, CNRS-IN2P3, Orsay, FranceA. BlancoLaboratório de Instrumentação e Física Experimental de Partículas—LIP and Instituto Superior Técnico—IST, Universidade de Lisboa—UL, Lisboa, PortugalJ. BlazekInstitute of Physics of the Czech Academy of Sciences, Prague, Czech RepublicC. BleveINFN, Sezione di Lecce, Lecce, ItalyM. BoháčováInstitute of Physics of the Czech Academy of Sciences, Prague, Czech RepublicD. BoncioliGran Sasso Science Institute, L'Aquila, ItalyC. BonifaziUniversidade Federal do Rio de Janeiro, Instituto de Física, Rio de Janeiro, RJ, BrazilN. BorodaiInstitute of Nuclear Physics PAN, Krakow, PolandA.M. BottiInstituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, ArgentinaJ. BrackColorado State University, Fort Collins, CO, U.S.AT. BretzRWTH Aachen University, III. Physikalisches Institut A, Aachen, GermanyA. BridgemanKarlsruhe Institute of Technology, Institute for Experimental Particle Physics (ETP), Karlsruhe, GermanyF.L. BriechleRWTH Aachen University, III. Physikalisches Institut A, Aachen, GermanyP. BuchholzUniversität Siegen, Fachbereich 7 Physik—Experimentelle Teilchenphysik, Siegen, GermanyA. BuenoUniversidad de Granada and C.A.F.P.E., Granada, SpainS. BuitinkVrije Universiteit Brussels, Brussels, BelgiumM. BuscemiINFN, Sezione di Catania, Catania, ItalyK.S. Caballero-MoraUniversidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, MéxicoL. CaccianigaUniversità di Milano, Dipartimento di Fisica, Milano, ItalyL. CalcagniIFLP, Universidad Nacional de La Plata and CONICET, La Plata, ArgentinaA. CancioInstituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, ArgentinaF. CanforaIMAPP, Radboud University Nijmegen, Nijmegen, The NetherlandsI. CaracasBergische Universität Wuppertal, Department of Physics, Wuppertal, GermanyJ.M. CarcellerUniversidad de Granada and C.A.F.P.E., Granada, SpainR. CarusoINFN, Sezione di Catania, Catania, ItalyA. CastellinaINFN, Sezione di Torino, Torino, ItalyF. CatalaniUniversidade de São Paulo, Escola de Engenharia de Lorena, Lorena, SP, BrazilG. CataldiINFN, Sezione di Lecce, Lecce, ItalyL. CazonLaboratório de Instrumentação e Física Experimental de Partículas—LIP and Instituto Superior Técnico—IST, Universidade de Lisboa—UL, Lisboa, PortugalM. CerdaObservatorio Pierre Auger, Malargüe, ArgentinaJ.A. ChinellatoUniversidade Estadual de Campinas, IFGW, Campinas, SP, BrazilK. ChoiUniversité Libre de Bruxelles (ULB), Brussels, BelgiumJ. ChudobaInstitute of Physics of the Czech Academy of Sciences, Prague, Czech RepublicL. ChytkaPalacky University, RCPTM, Olomouc, Czech RepublicR.W. ClayUniversity of Adelaide, Adelaide, S.A., AustraliaA.C. Cobos CeruttiInstituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), and Universidad Tecnológica Nacional—Facultad Regional Mendoza (CONICET/CNEA), Mendoza, ArgentinaR. ColalilloINFN, Sezione di Napoli, Napoli, ItalyA. ColemanUniversity of Delaware, Department of Physics and Astronomy, Bartol Research Institute, Newark, DE, U.S.AM.R. ColucciaINFN, Sezione di Lecce, Lecce, ItalyR. ConceiçãoLaboratório de Instrumentação e Física Experimental de Partículas—LIP and Instituto Superior Técnico—IST, Universidade de Lisboa—UL, Lisboa, PortugalA. CondorelliGran Sasso Science Institute, L'Aquila, ItalyG. ConsolatiINFN, Sezione di Milano, Milano, ItalyF. ContrerasObservatorio Pierre Auger and Comisión Nacional de Energía Atómica, Malargüe, ArgentinaF. ConvengaINFN, Sezione di Lecce, Lecce, ItalyM.J. CooperUniversity of Adelaide, Adelaide, S.A., AustraliaS. CoutuPennsylvania State University, University Park, PA, U.S.AC.E. CovaultCase Western Reserve University, Cleveland, OH, U.S.AB. DanielUniversidade Estadual de Campinas, IFGW, Campinas, SP, BrazilS. DassoDepartamento de Física and Departamento de Ciencias de la Atmósfera y los Océanos, FCEyN, Universidad de Buenos Aires and CONICET, Buenos Aires, ArgentinaK. DaumillerKarlsruhe Institute of Technology, Institut für Kernphysik, Karlsruhe, GermanyB.R. DawsonUniversity of Adelaide, Adelaide, S.A., AustraliaJ.A. DayUniversity of Adelaide, Adelaide, S.A., AustraliaR.M. de AlmeidaUniversidade Federal Fluminense, EEIMVR, Volta Redonda, RJ, BrazilS.J. de JongIMAPP, Radboud University Nijmegen, Nijmegen, The NetherlandsG. De MauroIMAPP, Radboud University Nijmegen, Nijmegen, The NetherlandsJ.R.T. de Mello NetoUniversidade Federal do Rio de Janeiro (UFRJ), Observatório do Valongo, Rio de Janeiro, RJ, BrazilI. De MitriGran Sasso Science Institute, L'Aquila, ItalyJ. de OliveiraUniversidade Federal Fluminense, EEIMVR, Volta Redonda, RJ, BrazilV. de SouzaUniversidade de São Paulo, Instituto de Física de São Carlos, São Carlos, SP, BrazilJ. DebatinKarlsruhe Institute of Technology, Institute for Experimental Particle Physics (ETP), Karlsruhe, GermanyM. del RíoObservatorio Pierre Auger and Comisión Nacional de Energía Atómica, Malargüe, ArgentinaO. DelignyInstitut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud, Université Paris/Saclay, CNRS-IN2P3, Orsay, FranceN. DhitalInstitute of Nuclear Physics PAN, Krakow, PolandA. Di MatteoINFN, Sezione di Torino, Torino, ItalyM.L. Díaz CastroUniversidade Estadual de Campinas, IFGW, Campinas, SP, BrazilC. DobrigkeitUniversidade Estadual de Campinas, IFGW, Campinas, SP, BrazilJ.C. D'OlivoUniversidad Nacional Autónoma de México, México, D.F., MéxicoQ. DorostiUniversität Siegen, Fachbereich 7 Physik—Experimentelle Teilchenphysik, Siegen, GermanyR.C. dos AnjosUniversidade Federal do Paraná, Setor Palotina, Palotina, BrazilM.T. DovaIFLP, Universidad Nacional de La Plata and CONICET, La Plata, ArgentinaA. DundovicUniversität Hamburg, II. Institut für Theoretische Physik, Hamburg, Germany
2019en
ABI
Annotatsiya
Neutrinos with energies above 1017 eV are detectable with the Surface Detector Array of the Pierre Auger Observatory. The identification is efficiently performed for neutrinos of all flavors interacting in the atmosphere at large zenith angles, as well as for Earth-skimming τ neutrinos with nearly tangential trajectories relative to the Earth. No neutrino candidates were found in ~ 14.7 years of data taken up to 31 August 2018. This leads to restrictive upper bounds on their flux. The 90% C.L. single-flavor limit to the diffuse flux of ultra-high-energy neutrinos with an Eν−2 spectrum in the energy range 1.0 × 1017 eV –2.5 × 1019 eV is E2 dNν/dEν < 4.4 × 10−9 GeV cm−2 s−1 sr−1, placing strong constraints on several models of neutrino production at EeV energies and on the properties of the sources of ultra-high-energy cosmic rays.
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