%0 Journal Article
%T Beta-delayed neutron emission: first measurements in the heavy mass region and future prospects
%A Domingo-Pardo, C.
%J Acta Physica Polonica B
%D 2016
%V 47
%N 3
%I Wydawnictwo Uniwersytetu Jagiellonskiego
%@ 0587-4254
%G English
%F Domingo-Pardo2016
%O WOS:000373495500015
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2623), last updated on Fri, 29 Apr 2016 14:50:07 +0000
%X Beta-delayed neutrons play a key role in the formation of heavy elements in explosive stellar environments. The final r-process abundance distribution, including the rare-earth peak, is tailored to a large extent by the neutrons released after the beta decay of very exotic neutron-rich nuclei encountered along the r-process path and during the freeze-out phase. Such scenarios involve a vast amount of – yet undiscovered – nuclei, and most of them are expected to be neutron emitters. In this respect, existing beta-delayed neutron emission data is rather scarce, spanning from the lightest isotopes up to the region of the fission-fragments with masses up to A similar to 150. This contribution gives an overview on the latest measurements of neutron branching ratios in the heavy mass region around N = 126, which was practically unexplored in the past. Present plans to access very exotic nuclei at the RIB-facility of RIKEN in the framework of the BRIKEN project, are presented, together with the expected impact in r-process nucleosynthesis studies.
%R 10.5506/APhysPolB.47.729
%U https://doi.org/10.5506/APhysPolB.47.729
%P 729-737