Reactions with exotic nuclei and theoretical uncertainties
F.M. Nunes
Michigan State University
Reaction theory is an essential element to study the properties of rare isotopes. Yet until recently, methods used to estimate uncertainties in reaction theories were ambiguous. Over the last decade, significant effort has been dedicated to quantifying uncertainties using Bayesian Statistics....
Understanding neutron capture on mass ≈80 fission fragments is important for understanding weak r-process nucleosynthesis that could occur in supernova explosions. In these nuclei near the N=50 neutron shell closure, neutron capture is a competition between direct capture and statistical processes that proceed via a compound nucleus. Direct (and semi-direct that proceeds via the giant dipole...
With access to very neutron-rich isotopes, the neutron emission from excited states populated after beta decay becomes a dominant deexcitation mode. The neutron energy measurement informs about beta-decay strength distribution, which is driven by shell effects. The neutron emission is thought to be a result of statistical emission. Measurements performed in regions of 54Ca, 78Ni and 132Sn were...
