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All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data

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All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data

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dc.contributor.author Albert, A. es_ES
dc.contributor.author Andre, M. es_ES
dc.contributor.author Anghinolfi, M. es_ES
dc.contributor.author Anton, G. es_ES
dc.contributor.author Ardid Ramírez, Miguel es_ES
dc.contributor.author Aubert, J.J. es_ES
dc.contributor.author Aublin, J. es_ES
dc.contributor.author Avgitas, T. es_ES
dc.contributor.author Baret, B. es_ES
dc.contributor.author Barrios-Marti, J. es_ES
dc.contributor.author Basa, S. es_ES
dc.contributor.author Belhorma, B. es_ES
dc.contributor.author Bertin, V. es_ES
dc.contributor.author Biagi, S. es_ES
dc.contributor.author Bormuth, R. es_ES
dc.contributor.author Felis-Enguix, Iván es_ES
dc.contributor.author Martínez Mora, Juan Antonio es_ES
dc.contributor.author Saldaña-Coscollar, María es_ES
dc.date.accessioned 2020-05-13T03:02:42Z
dc.date.available 2020-05-13T03:02:42Z
dc.date.issued 2018-01 es_ES
dc.identifier.issn 2041-8205 es_ES
dc.identifier.uri http://hdl.handle.net/10251/142999
dc.description.abstract [EN] The ANTARES detector is at present the most sensitive neutrino telescope in the northern hemisphere. The highly signi¿cant cosmic neutrino excess observed by the Antarctic IceCube detector can be studied with ANTARES, exploiting its complementing ¿eld of view, exposure, and lower energy threshold. Searches for an all-¿avor diffuse neutrino signal, covering nine years of ANTARES data taking, are presented in this Letter. Upward-going events are used to reduce the atmospheric muon background. This work includes for the ¿rst time in ANTARES both track-like (mainly nm) and shower-like (mainly ne) events in this kind of analysis. Track-like events allow for an increase of the effective volume of the detector thanks to the long path traveled by muons in rock and/or sea water. Shower-like events are well reconstructed only when the neutrino interaction vertex is close to, or inside, the instrumented volume. A mild excess of high-energy events over the expected background is observed in nine years of ANTARES data in both samples. The best ¿t for a single power-law cosmic neutrino spectrum, in terms of per-¿avor ¿ux at 100 TeV, is (1.7+-1.0)10-18 GeV¿1 cm¿2 s¿1 sr¿1 with spectral index G=2.4+0.5-0.4. The null cosmic ¿ux assumption is rejected with a signi¿cance of 1.6¿. es_ES
dc.description.sponsorship The authors acknowledge the financial support of the funding agencies: Centre National de la Recherche Scientifique (CNRS), Commissariat a l'energie atomique et aux energies alternatives (CEA), Commission Europeenne (FEDER fund and Marie Curie Program), Institut Universitaire de France (IUF), IdEx program and UnivEarthS Labex program at Sorbonne Paris Cite (ANR-10-LABX-0023 and ANR-11-IDEX-0005-02), Labex OCEVU (ANR-11-LABX-0060) and the A*MIDEX project (ANR-11-IDEX-0001-02), Region Ile-de-France (DIM-ACAV), Region Alsace (contrat CPER), Region Provence-Alpes-Cote d'Azur, Departement du Var and Ville de La Seyne-sur-Mer, France; Bundesministerium fur Bildung und Forschung (BMBF), Germany; Istituto Nazionale di Fisica Nucleare (INFN), Italy; Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO), the Netherlands; Council of the President of the Russian Federation for young scientists and leading scientific schools supporting grants, Russia; National Authority for Scientific Research (ANCS), Romania; Ministerio de Economia y Competitividad (MINECO): Plan Estatal de Investigacion (refs. FPA2015-65150-C3-1-P, -2-P and -3-P, (MINECO/FEDER)), Severo Ochoa Centre of Excellence and MultiDark Consolider (MINECO), and Prometeo and Grisolia programs (Generalitat Valenciana), Spain; Ministry of Higher Education, Scientific Research and Professional Training, Morocco. We also acknowledge the technical support of Ifremer, AIM and Foselev Marine for the sea operation and the CC-IN2P3 for the computing facilities. es_ES
dc.language Inglés es_ES
dc.publisher American Astronomical Society es_ES
dc.relation.ispartof The Astrophysical Journal es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Astroparticle physics es_ES
dc.subject Neutrinos es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3847/2041-8213/aaa4f6 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//FPA2015-65150-C3-1-P/ES/PARTICIPACION DEL IFIC EN ANTARES, KM3NET-ARCA%2FORCA Y PDG/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/ANR//ANR-11-LABX-0060/FR/Origines, Constituants et EVolution de l'Univers/OCEVU/FR/Origines, Constituants et EVolution de l'Univers/OCEVU/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/ANR//ANR-11-IDEX-0005/FR/Université Sorbonne Paris Cité/USPC/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/ANR//ANR-11-IDEX-0001/FR/INITIATIVE D'EXCELLENCE AIX MARSEILLE UNIVERSITE/Amidex/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/ANR//ANR-10-LABX-0023/FR/Earth - Planets - Universe: observation, modeling, transfer/UnivEarthS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//FPA2015-65150-C3-3-P/ES/PARTICIPACION DE LA UGR EN ANTARES, KM3NET-ARCA%2FORCA Y PDG/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//CSD2009-00064/ES/Método de Multimensajeros para la Detección de la Materia Oscura/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//FPA2015-65150-C3-2-P/ES/PARTICIPACION DE LA UPV EN ANTARES Y KM3NET-ARCA%2FORCA/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.description.bibliographicCitation Albert, A.; Andre, M.; Anghinolfi, M.; Anton, G.; Ardid Ramírez, M.; Aubert, J.; Aublin, J.... (2018). All-flavor Search for a Diffuse Flux of Cosmic Neutrinos with Nine Years of ANTARES Data. The Astrophysical Journal. 853(1):1-5. https://doi.org/10.3847/2041-8213/aaa4f6 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3847/2041-8213/aaa4f6 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 5 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 853 es_ES
dc.description.issue 1 es_ES
dc.relation.pasarela S\367016 es_ES
dc.contributor.funder Agence Nationale de la Recherche, Francia es_ES
dc.contributor.funder European Commission es_ES
dc.contributor.funder Conseil Régional, Île-de-France es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Conseil Régional d'Alsace es_ES
dc.contributor.funder Institut Universitaire de France es_ES
dc.contributor.funder European Regional Development Fund es_ES
dc.contributor.funder Instituto Nazionale di Fisica Nucleare es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES
dc.contributor.funder Conseil Régional Provence-Alpes-Côte d'Azur es_ES
dc.contributor.funder Département du Var and Ville de La Seyne-sur-Mer es_ES
dc.contributor.funder National Authority for Scientific Research, Rumanía es_ES
dc.contributor.funder Bundesministerium für Bildung und Forschung, Alemania es_ES
dc.contributor.funder Centre National de la Recherche Scientifique, Francia es_ES
dc.contributor.funder Netherlands Organization for Scientific Research es_ES
dc.contributor.funder Council on grants of the President of the Russian Federation es_ES
dc.contributor.funder Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Francia es_ES
dc.contributor.funder Ministère de l'Education Nationale, de la Formation professionnelle, de l'Enseignement Supérieur et de la Recherche Scientifique, Marruecos es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
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