학술논문
Study of decay properties of Ba to Nd nuclei (A~160) relevant to the formation of the r-process rare-earth peak
Document Type
article
Author
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.; Estrade A.; Fukuda N.; Go S.; Griffin C. J.; Grzywacz R. K.; Hall O.; Harkness-Brennan L. J.; Isobe T.; Kahl D.; King T. T.; Korgul A.; Kovács S.; Kubono S.; Labiche M.; Liu J.; Madurga M.; Miernik K.; Molina F.; Mont-Geli N.; Morales A. I.; Nácher E.; Navarro A.; Nepal N.; Nishimura S.; Piersa-Silkowska M.; Phong V.; Rasco B. C.; Romero-Barrientos J.; Rubio B.; Rykaczewski K. P.; Saito Y.; Sakurai H.; Shimizu Y.; Singh M.; Sumikama T.; Suzuki H.; Szegedi T. N.; Takeda H.; Wang K.; Wolińska-Cichocka M.; Woods P. J.; Yokoyama R.
Source
EPJ Web of Conferences, Vol 284, p 02005 (2023)
Subject
Language
English
ISSN
2100-014X
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.