Detecting Neutrinos from Supernova Bursts in PandaX-4T
Chinese Physics C(2024)
Abstract
Neutrinos from core-collapse supernovae are essential for the understanding
of neutrino physics and stellar evolution. The dual-phase xenon dark matter
detectors can provide a way to track explosions of galactic supernovae by
detecting neutrinos through coherent elastic neutrino-nucleus scatterings. In
this study, a variation of progenitor masses as well as explosion models are
assumed to predict the neutrino fluxes and spectra, which result in the number
of expected neutrino events ranging from 6.6 to 13.7 at a distance of 10 kpc
over a 10-second duration with negligible backgrounds at PandaX-4T. Two
specialized triggering alarms for monitoring supernova burst neutrinos are
built. The efficiency of detecting supernova explosions at various distances in
the Milky Way is estimated. These alarms will be implemented in the real-time
supernova monitoring system at PandaX-4T in the near future, providing the
astronomical communities with supernova early warnings.
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