1. Study of decay properties of Ba to Nd nuclei (A~160) relevant to the formation of the r-process rare-earth peak.
- Author
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Pallàs, M., Tarifeño-Saldivia, A., Kiss, G. G., Tain, J. L., Tolosa-Delgado, A., Vitéz-Sveiczer, A., Calviño, F., Agramunt, J., Aguilera, P., Algora, A., Allmond, J. M., Baba, H., Brewer, N. T., Caballero-Folch, R., Coleman-Smith, P. J., Cortes, G., Davinson, T., Dillmann, I., Domingo-Pardo, C., and Estrade, A.
- Subjects
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NUCLEAR structure , *RARE earth metals , *RADIOACTIVE decay , *RADIOISOTOPES , *NEUTRON counters - Abstract
Half-lifes (T1/2) of exotic neutron-rich isotopes of Ba, La, Ce, Pr, and Nd were measured at the RIKEN Nishina Center. The experimental setup consisted of the BigRIPS in-flight separator for ion selection identification, the Advance Implantation Detector Array (AIDA) for ions and β detection, and the BRIKEN detector for neutron counting. Using this setup, 4 new T1/2 have been measured for the first time, and 38 T1/2 have been remeasured with improved precision in several cases. These new experimental data should help to constrain theoretical models for calculations of T1/2. The status of the experimental analysis and preliminary results are provided in this contribution. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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