Speaker
Description
Large neutrino telescopes offer unique opportunities to detect neutrinos from the next core-collapse supernova (CCSN), following the only observation in 1987. The TRopIcal DEep-sea Neutrino Telescope (TRIDENT), a next-generation detector in the South China Sea, is primarily designed for high-energy neutrinos but is also sensitive to MeV-scale bursts from nearby CCSNe. Such events induce a collective rise in noise via inverse beta decay (IBD), where TRIDENT’s pixelized digital optical modules enable high-purity identification of prompt positron–delayed neutron coincidences. The naturally present chlorine in seawater further enhances neutron capture efficiency. In addition to simulations, we validate this approach experimentally using a 10 Bq AmBe source with a single hDOM at CJPL, achieving a >3σ neutron signal significance despite its lower signal intensity compared to a typical Galactic CCSN event.
| 请选择分会 | 中微子物理、粒子天体物理与宇宙学 |
|---|
