Speaker
Description
TRIDENT (海铃) is a next-generation deep-sea neutrino telescope under development in the South China Sea, designed to instrument several cubic kilometres of seawater with hybrid Digital Optical Modules. After a brief introduction to the experiment, I present sensitivity forecasts for dark matter annihilation in the Galactic Centre over the mass range 1–100 TeV. Using the full detector design and all-flavor neutrino interactions, we show that TRIDENT will reach an annihilation cross-section below the thermal freeze-out benchmark at 10 TeV, and that cascade events from electron and tau neutrino interactions provide greater sensitivity than the conventional muon track channel. We further demonstrate that diffuse Galactic neutrinos from cosmic-ray interactions with interstellar gas — a previously overlooked background — can degrade sensitivity by up to a factor of two above 10 TeV and potentially mimic a dark matter signal, highlighting an important systematic for future searches.
| 请选择分会 | 中微子物理、粒子天体物理与宇宙学 |
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