Total absorption spectroscopy of neutron-rich nuclei around the A=100 mass region
ORAL
Abstract
Accurate modeling of the r-process requires knowledge of properties related to the $\beta$-decay of neutron-rich nuclei, such as $\beta$-decay half-lives and $\beta$-delayed neutron emission probabilities. These properties are related to the $\beta$-decay strength distribution, which can provide a sensitive constraint on theoretical models. Total absorption spectroscopy is a powerful technique to accurately measure quantities needed to calculate the $\beta$-decay strength distribution. In an effort to improve models of the r-process, the total absorption spectra of neutron-rich nuclei in the mass region around A=100 were recently measured using the Summing NaI(Tl) (SuN) detector at the NSCL in the first ever total absorption spectroscopy measurement performed in a fragmentation facility. Total absorption spectra will be presented and the extracted $\beta$-decay feeding intensities will be compared to theoretical calculations.
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