Supernova Early Warning in Daya Bay Reactor Neutrino Experiment

Providing an early warning of a galactic supernova using neutrino signals is of importance in studying both supernova dynamics and neutrino physics. The Daya Bay reactor neutrino experiment, with a unique feature of multiple liquid scintillator detectors separated in space, is sensitive to the full...

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Bibliographic Details
Published inarXiv.org
Main Authors Hanyu Wei, the Daya Bay collaboration
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 11.03.2014
Subjects
Antineutrinos
Detectors
Embedded systems
Energy spectra
Milky Way Galaxy
Neutrinos
On-line systems
Scintillation counters
Spallation
Supernovae
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Summary:Providing an early warning of a galactic supernova using neutrino signals is of importance in studying both supernova dynamics and neutrino physics. The Daya Bay reactor neutrino experiment, with a unique feature of multiple liquid scintillator detectors separated in space, is sensitive to the full energy spectrum of supernova burst electron-antineutrinos. By deploying 8 Antineutrino Detectors (ADs) in three different experimental halls, we obtain a more powerful and prompt rejection of muon spallation background than single-detector experiments. A dedicated supernova online trigger system embedded in the data acquisition system has been installed to allow the detection of a coincidence of neutrino signals within a 10-second window, thus providing a robust early warning of a supernova occurrence within the Milky Way.
ISSN:2331-8422