High precision measurement of the $^6$He half-life
| Autor: | Kanafani, M., Fléchard, X., Naviliat-Cuncic, O., Chung, G. D., Leblond, S., Liénard, E., Mougeot, X., Quéméner, G., Di Filippo, A. Simancas, Thomas, J-C. |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.106.045502 |
| Popis: | The half-life of $^{6}$He has been measured using a low energy radioactive beam implanted in a YAP scintillator and recording decay events in a 4$\pi$ geometry. Events were time-stamped with a digital data acquisition system enabling a reliable control of dead-time effects and detector gain variations. The result, $T_{1/2} = (807.25 \pm 0.16_{\rm stat} \pm 0.11_{\rm sys}$)~ms, provides the most precise value obtained so far and is consistent with the only previous measurement having a precision smaller than 0.1%. This resolves the longstanding discrepancy previously observed between two sets of measurements. Comment: 11 pages, 14 figures |
| Databáze: | arXiv |
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