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Measurement of $^{216}$Po half-life with the CUPID-0 experiment
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abstract
Rare event physics demands very detailed background control, high-performance detectors, and custom analysis strategies. Cryogenic calorimeters combine all these ingredients very effectively, representing a promising tool for next-generation experiments. CUPID-0 is one of the most advanced examples of such a technique, having demonstrated its potential with several results obtained with limited exposure. In this paper, we present a further application. Exploiting the analysis of delayed coincidence, we can identify the signals caused by the $^{220}$Rn-$^{216}$Po decay sequence on an event-by-event basis. The analysis of these events allows us to extract the time differences between the two decays, leading to a new evaluation of $^{216}$ half-life, estimated as (143.3 $\pm$ 2.8) ms.
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Cited by 1 Pith paper
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Precise Measurement of $^{216}$Po Half-life with Exact Parent-daughter Pairing in PandaX-4T
Using exact space-time pairing of 220Rn-216Po decays in PandaX-4T, the 216Po half-life is measured to be 143.7±0.5(stat)±0.2(syst) ms.
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