Speaker
Description
After completing three data-taking runs, the PandaX-4T experiment concluded its operation and was decommissioned in May 2026. A dedicated low-energy analysis of data from the commissioning run (Run0) and the first scientific run (Run1), which combines ionization-only and scintillation-ionization paired events, has significantly enhanced the sensitivity to ultra-low energy recoils. Utilizing these two datasets, we reported a $2.64\sigma$ indication of solar $^8\text{B}$ neutrinos through coherent elastic neutrino-nucleus scattering (CE$\nu$NS) and set the most stringent limits on sub-GeV light dark matter interactions with nucleons and electrons. Moreover, the second scientific run (Run2) has an exposure three times that of the previous data, which is expected to further improve detection sensitivity. The Run2 low-energy analysis is currently ongoing, and this presentation will report on its latest status.
| 请选择分会 | 中微子物理、粒子天体物理与宇宙学 |
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