Directionality measurement of CNO neutrinos with Borexino detector

Publikation: Beitrag in FachzeitschriftKonferenzartikelBeigetragenBegutachtung

Beitragende

  • Borexino Collaboration - (Autor:in)
  • Professur für Kernphysik
  • Università degli Studi di Milano
  • Princeton University
  • National Institute for Nuclear Physics
  • University of Genoa
  • Lomonosov Moscow State University
  • RAS - Saint Petersburg Nuclear Physics Institute
  • Institut de Mecanique Celeste et de Calcul des Ephemerides
  • Gran Sasso Science Institute
  • Joint Institute for Nuclear Research
  • Johannes Gutenberg-Universität Mainz
  • Jagiellonian University in Kraków
  • National Academy of Sciences of Ukraine
  • Royal Holloway University of London
  • Institute for Nuclear Research
  • Forschungszentrum Jülich
  • Rheinisch-Westfälische Technische Hochschule Aachen
  • Russian Research Centre Kurchatov Institute
  • Moscow Engineering Physics Institute
  • Technische Universität München
  • University of Perugia
  • Technische Universität Dresden

Abstract

In the following, the first measurement of CNO solar neutrinos obtained by Borexino by exploiting the directional information retained by solar neutrino is summarized [1]. The Correlated Integrated Directionality (CID) method makes use of the sub-dominant Cherenkov light emitted by the Borexino liquid scintillator to correlate between the first few detected photons in each event and the known position of the Sun for each event and, therefore, to discriminate between the signal and the radioactive background on a statistical basis. By applying this technique to the complete 2007-2021 Borexino dataset, the hypothesis of no CNO neutrinos is rejected with >5σ posterior probability, without making use of any information on the background levels in the scintillator.

Details

OriginalspracheEnglisch
Aufsatznummer158
FachzeitschriftProceedings of Science
Jahrgang441
PublikationsstatusVeröffentlicht - 22 März 2024
Peer-Review-StatusJa

Konferenz

Titel18th International Conference on Topics in Astroparticle and Underground Physics
KurztitelTAUP 2023
Veranstaltungsnummer18
Dauer28 August - 1 September 2023
Webseite
OrtUniversität Wien
StadtWien
LandÖsterreich

Schlagworte

ASJC Scopus Sachgebiete