A Problem in the Statistical Description of Beta-Delayed Neutron Emission

Reaction measurements on fission products are being planned at both Argonne National Lab and the Facility for Rare Isotope Beams. These indirect experiments produce specific short-lived nuclei via beta decay, subsequent neutron gamma emission studied. Some initial found a surprising overabundance of emission, which theory has yet to explain. To remedy this, we developing an integrated nuclear data workflow that connects advanced shell model codes describing decay with contemporary reaction code.