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Refined neutrino follow-up analysis of GRB 221009A with KM3NeT ARCA and ORCA detectors

  • KM3NeT Collaboration
  • University of Valencia
  • Aix-Marseille Université
  • University of Bologna
  • National Institute for Nuclear Physics
  • University of Rome La Sapienza
  • Université de Strasbourg
  • Université de Haute-Alsace
  • University of Naples Federico II
  • Polytechnic University of Catalonia
  • Demokritos National Centre for Scientific Research
  • University of Granada
  • Nantes Université
  • Polytechnic University of Valencia
  • Mohammed V University in Rabat
  • Université de Paris
  • Université de Caen
  • Czech Technical University in Prague
  • Comenius University
  • National Institute for Subatomic Physics
  • University of Campania Luigi Vanvitelli
  • University of Hull
  • North West University
  • Mohamed I University
  • University of Salerno
  • Institute for Space Sciences
  • University of Amsterdam
  • Netherlands Organisation for Applied Scientific Research
  • Cadi Ayyad University
  • Friedrich-Alexander University Erlangen-Nürnberg
  • University of the Witwatersrand
  • University of Catania
  • International Centre for Radio Astronomy Research
  • University of Würzburg
  • Western Sydney University
  • LPC
  • University of Genoa
  • Royal Netherlands Institute for Sea Research - NIOZ
  • Leiden University
  • National Centre for Nuclear Research
  • Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
  • Ivane Javakhishvili Tbilisi State University
  • The University of Georgia, Tbilisi
  • Institut universitaire de France
  • IN2P3 - Institut National de Physique Nucléaire et de Physique Des Particules
  • Université Montpellier 2

Research output: Contribution to journalConference articlepeer-review

Abstract

On October 9th 2022, the Swift-BAT telescope detected a spectacular transient event, soon classified as a Gamma-Ray Burst (GRB), based on the Fermi-GBM observation performed one hour earlier. Photons up to TeV energies were observed from such GRB by LHAASO, corresponding to the highest energy ever detected from a GRB. Just after this detection, a large number of observatories detected and characterized the multi-wavelength and multi-messenger emissions of this GRB, in one of the largest worldwide follow-up campaigns ever. The KM3NeT neutrino telescope was one of the experiments that participated in the follow-up effort. KM3NeT is currently being built in the Mediterranean Sea and is composed of two detectors: ORCA, optimized for the detection of signals induced by neutrinos in the GeV-TeV range, and ARCA, mainly focused in neutrinos at the TeV-PeV range. MeV neutrinos can also be detected by looking for rate coincidences of Photo-Multipliers Tubes signals in both detectors. A first fast analysis was performed using data from the online reconstruction chain. In this contribution, we present a refined follow-up analysis, where new offline features are added together with improved calibration and optimized event selection.

Original languageEnglish
Article number1503
JournalProceedings of Science
Volume444
Publication statusPublished - 27 Sept 2024
Event38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan
Duration: 26 Jul 20233 Aug 2023

ASJC Scopus subject areas

  • Multidisciplinary

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