Abstract
Observation of supernovae (SN) through their neutrino emission is a fundamental point to understand both SN dynamics and neutrino physical properties. JUNO is a 20kton liquid scintillator detector, under construction in Jiangmen, China. The main aim of the experiment is to determine neutrino mass hierarchy by precisely measuring the energy spectrum of reactor electron antineutrinos. However due to its properties, JUNO has the capability of detecting a high statistics of SN events too. Existing data from SN neutrino consists only of 24 events coming from the SN 1987A,the detection of a SN burst in JUNO at ~ 10kpc will yield ~ 5x103 inverse beta decay (IBD) events from electron antineutrinos, about 1500 from proton elastic scattering (pES) above the threshold of 0.2 MeV, about 400 from electron elastic scattering (eES), plus several hundreds on other CC and NC interaction channels from all neutrino species.
Highlights
The Jiangmen Underground Neutrino Observatory (JUNO)[1] is a 20kton multi-purpose underground liquid scintillator (LS) detector, which is located at Kaiping, Jiangmen in South China, is design primarily to determine the neutrino mass hierarchy (MH) using reactor antineutrinos.The detector features make it suitable for a whole series of measurements in the ν Physics such as atmospheric neutrinos, geoneutrinos, solar neutrinos and supernova and diffuse supernova neutrinos, as a natural accessible source and other exotic searches[1].The JUNO central detector consists of a ∼ 36m diameter acrylic sphere, filled with 20kton of liquid scintillator (LS)
Existing data from SN neutrino consists only of 24 events coming from the SN 1987A,the detection of a SN burst in JUNO at ∼ 10kpc will yield ∼ 5x103 inverse beta decay (IBD) events from electron antineutrinos, about 1500 from proton elastic scattering above the threshold of 0.2 MeV, about 400 from electron elastic scattering, plus several hundreds on other charged current (CC) and neutral current (NC) interaction channels from all neutrino species
We present simulations studies on Core Collapse Supernova (CCSN) neutrino event for different detection channels involving different flavours of SN neutrinos
Summary
The Jiangmen Underground Neutrino Observatory (JUNO)[1] is a 20kton multi-purpose underground liquid scintillator (LS) detector, which is located at Kaiping, Jiangmen in South China, is design primarily to determine the neutrino mass hierarchy (MH) using reactor antineutrinos. The detector features make it suitable for a whole series of measurements in the ν Physics such as atmospheric neutrinos, geoneutrinos, solar neutrinos and supernova and diffuse supernova neutrinos, as a natural accessible source and other exotic searches[1].The JUNO central detector consists of a ∼ 36m diameter acrylic sphere, filled with 20kton of liquid scintillator (LS). We present simulations studies on Core Collapse Supernova (CCSN) neutrino event for different detection channels involving different flavours of SN neutrinos. Using the supernova flux model from Nakazato et al [2] and assuming the galactic supernova explosion occurring at three different distances, a statistic sample can be simulated to be able to build an unfolding method to get back to the original SN parameters and reconstruct the SN neutrino energy spectra
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