PT Journal
AU Benzoni, Gea
   Gadea, A
   Algora, A
TI First measurement of beta decay half-lives in neutron-rich Tl and Bi isotopes
SO Physics Letters B
JI Phys. Lett. B
PY 2012
BP 293
EP 297
VL 715
IS 4-5
DI 10.1016/j.physletb.2012.07.063
LA English
AB Neutron-rich isotopes around lead, beyond N = 126, have been studied exploiting the fragmentation of an uranium primary beam at the FRS-RISING setup at GSI. For the first time beta-decay half-lives of Bi-219 and Tl-211,Tl-212,Tl-213 isotopes have been derived. The half-lives have been extracted using a numerical simulation developed for experiments in high-background conditions. Comparison with state of the art models used in r-process calculations is given, showing a systematic underestimation of the experimental values, at variance from close-lying nuclei.
ER