期刊
PHYSICS LETTERS B
卷 805, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2020.135439
关键词
Dark matter indirect detection; Neutrino telescope; Galactic Centre; ANTARES
资金
- Centre National de la Recherche Scientifique (CNRS)
- Commissariat a l'Energie Atomique et aux Energies Alternatives(CEA)
- Commission Europeenne (FEDER fund)
- Commission Europeenne (Marie Curie Program)
- Institut Universitaire de France (IUF)
- IdEx program at Sorbonne Paris Cite [ANR-10-LABX-0023, ANR-11-IDEX-0005-02]
- UnivEarthS Labex program at Sorbonne Paris Cite [ANR-10-LABX-0023, ANR-11-IDEX-0005-02]
- Labex OCEVU [ANR-11-LABX-0060]
- 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
- Instituto 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
- Executive Unit for Financing Higher Education, Research, Development and Innovation (UEFISCDI), Romania
- Ministerio de Ciencia, Innovacion y Universidades(MCIU): Programa Estatal de Generacion de Conocimiento [PGC2018-096663-B-C41, PGC2018-096663-A-C42, PGC2018-096663-B-C43, PGC2018-096663-B-C44]
- Severo Ochoa Centre of Excellence and MultiDark Consolider (MCIU)
- Junta de Andalucia [SOMM17/6104/UGR]
- Generalitat Valenciana: Grisolia, Spain [GRISOLIA/2018/119]
- Ministry of Higher Education, Scientific Research and Training, Morocco
Neutrino detectors participate in the indirect search for the fundamental constituents of dark matter (DM) in form of weakly interacting massive particles (WIMPs). In WIMP scenarios, candidate DM particles can pair-annihilate into Standard Model products, yielding considerable fluxes of high-energy neutrinos. A detector like ANTARES, located in the Northern Hemisphere, is able to perform a complementary search looking towards the Galactic Centre, where a high density of dark matter is thought to accumulate. Both this directional information and the spectral features of annihilating DM pairs are entered into an unbinned likelihood method to scan the data set in search for DM-like signals in ANTARES data. Results obtained upon unblinding 3170 days of data reconstructed with updated methods are presented, which provides a larger, and more accurate, data set than a previously published result using 2101 days. A non-observation of dark matter is converted into limits on the velocity-averaged cross section for WIMP pair annihilation. (C) 2020 Published by Elsevier B.V.
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