Nuclear data for rprocess modelsĀ (Webinar Registration)
Rebecca Surman, Union College
While we know the heaviest nuclei in the galaxy are made via rapid neutron
capture, or rprocess, nucleosynthesis, exactly where (and how) the rprocess
occurs is still not understood. Progress toward answering these questions
involves nuclear network simulations of the rprocess, which require nuclear
physics information for thousands of neutronrich nuclei from the line of
stability to the neutron drip line. Only very few of these pieces of nuclear
data have been measured experimentally, and, even with the development of the
next generation of radioactive beam facilities, we will never be able to measure
all of the data we need. It is therefore imperative to determine which nuclear
properties are most crucial for rprocess simulations. Here we report on recent
rprocess sensitivity studies that examine the roles of individual pieces of
nuclear dataneutron separation energies, beta decay rates, and neutron
capture ratesin shaping the final rprocess abundance distribution.
