Precise Measurement of ${}^{216}$Po Half-life with Exact Parent-daughter Pairing in PandaX-4T

PandaX Collaboration, Chenxiang Li, Zihao Bo +108

We report a precise measurement of ${}^{216}\mathrm{Po}$ half-life using the PandaX-4T liquid xenon time projection chamber (TPC). ${}^{220}\mathrm{Rn}$, emanating from a ${}^{228}\mathrm{Th}$ calibr…