Jun 21 – 26, 2015
Dipartimento di Fisica ed Astronomia, Università di Catania
Europe/Rome timezone
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Exploration of Direct Neutron Capture with Covariant Density Functional Theory Inputs

Not scheduled
20m
Aula Magna (Dipartimento di Fisica ed Astronomia, Università di Catania)

Aula Magna

Dipartimento di Fisica ed Astronomia, Università di Catania

Via Santa Sofia, 64 95123, Catania, Italy
Oral presentation Reactions and Structure - Unstable Nuclei

Speaker

Dr shisheng zhang (School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, China)

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Predictions of direct neutron capture are of vital importance for simulations of nucleosynthesis in
supernovae, merging neutron stars, and other astrophysical environments.
We calculated direct capture cross sections using nuclear structure information
obtained from a covariant density functional theory as input for the FRESCO coupled reaction channels code.
We investigated the impact of pairing, spectroscopic factors,
and optical potentials on our results to determine a robust method to calculate cross sections of direct neutron capture on exotic nuclei.
Our predictions agree reasonably well with experimental cross section data for the
closed shell nuclei O-16 and Ca-48, and for the exotic nucleus S-36.
We then used this approach to calculate the direct neutron capture cross section on the doubly magic unstable nucleus Sn-132
which is of interest for the astrophysical r-process.

Primary authors

Dr Michael Smith (Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831) Dr shisheng zhang (School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, China)

Co-author

Dr Goran Arbanas (Reactor and Nuclear Systems Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6171 USA)

Presentation materials

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