$\beta$-decay and neutron emission studies of r-process nuclei near $^{137}$Sb
ORAL
Abstract
The $\beta$-decays of very neutron rich nuclides in the A=130 region, including the astrophysically relevant nuclei $^{137}$Sb, were studied experimentally at the Helmholtzzentrum f\"{u}r Schwerionenforchung (GSI) using a stack of four 500~$\mu$m thick double-sided silicon strip detectors in conjunction with the Mainz $4\pi$ neutron long counter detector. The system allows the time correlation of ion implant and decay events and the detection of neutrons emitted during the decay. We measured half-lives and branchings for $\beta$-delayed neutron emission ($P_n$ values) for a number of nuclei in the region. The impact of our results on various types of models for the astrophysical rapid neutron capture process (r-process) is explored.
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