Analysis methods to determine the bound-state beta-decay half-life of Thallium-205

Bound-state β − -decay is an exotic decay mode that produces temperature-dependent stability in nuclei. A striking example is 205 Tl, in part because of its impact on the 205 Pb/ 204 Pb cosmochronometer—a short-lived ra-dionuclide clock that can provide unique constraints on s process material in th...

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Bibliographic Details
Published in:EPJ Web of conferences 2023, Vol.279, p.6010
Main Authors: Leckenby, Guy, Sidhu, Ragandeep Singh, Chen, Rui Jiu, Litvinov, Yuri, Glorius, Jan, Griffin, Christopher, Dillmann, Iris
Format: Article
Language:English
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Summary:Bound-state β − -decay is an exotic decay mode that produces temperature-dependent stability in nuclei. A striking example is 205 Tl, in part because of its impact on the 205 Pb/ 204 Pb cosmochronometer—a short-lived ra-dionuclide clock that can provide unique constraints on s process material in the early solar system. The bound-state β − -decay of 205 Tl was measured at GSI, where fully stripped 205 Tl 81+ ions were produced and stored in the Experimental Storage Ring. Decay occurred during storage producing increased 205 Pb daughters with increased storage time. This contribution briefly outlines the experiment and describes analytical corrections required to extract the half-life.
ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/202327906010