期刊
PHYSICS LETTERS B
卷 816, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2021.136228
关键词
Neutrino telescope; Atmospheric neutrinos; ANTARES
资金
- Centre National de la Recherche Scientifique (CNRS)
- Commissariat a l'Energie Atomique et aux Energies Alternatives(CEA)
- Commission Europeenne (FEDER fund)
- Institut Universitaire de France (IUF)
- Labex UnivEarthS [ANR-10-LABX-0023, ANR-18-IDEX-0001]
- Region Ile-de-France (DIM-ACAV)
- Region Alsace (contrat CPER)
- Region Provence-AlpesCote 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 e Innovacion (MCI) [PGC2018096663-B-C41, PGC2018096663-A-C42, PGC2018096663-B-C43, PGC2018096663-B-C44]
- Severo Ochoa Centre of Excellence and MultiDark Consolider
- Junta de Andalucia [SOMM17/6104/UGR, A-FQM-053-UGR18]
- Generalitat Valenciana: Grisolia program, Spain [GRISOLIA/2018/119]
- Generalitat Valenciana: GenT program, Spain [CIDEGENT/2018/034]
- Ministry of Higher Education, Scientific Research and Professional Training, Morocco
- Agencia Estatal de Investigacion [PGC2018096663-B-C41, PGC2018096663-A-C42, PGC2018096663-B-C43, PGC2018096663-B-C44]
- Commission Europeenne (Marie Curie Program)
This study presents a combined measurement of the energy spectra of atmospheric nu(e) and nu(mu) using the ANTARES neutrino telescope in the high energy range. The analysis focuses on interactions of neutrinos within the detector, yielding electron and muon neutrino fluxes. The results are compared with previous measurements, revealing the energy spectra of atmospheric neutrinos.
This letter presents a combined measurement of the energy spectra of atmospheric nu(e) and nu(mu) in the energy range between similar to 100 GeV and similar to 50 TeV with the ANTARES neutrino telescope. The analysis uses 3012 days of detector livetime in the period 2007-2017, and selects 1016 neutrinos interacting in (or close to) the instrumented volume of the detector, yielding shower-like events (mainly from nu(e) + (nu) over bar (e) charged current plus all neutrino neutral current interactions) and starting track events (mainly from nu(mu) + (nu) over bar (mu) charged current interactions). The contamination by atmospheric muons in the final sample is suppressed at the level of a few per mill by different steps in the selection analysis, including a Boosted Decision Tree classifier. The distribution of reconstructed events is unfolded in terms of electron and muon neutrino fluxes. The derived energy spectra are compared with previous measurements that, above 100 GeV, are limited to experiments in polar ice and, for nu(mu), to Super-Kamiokande. (C) 2021 The Author(s). Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据