TY - JOUR
T1 - Exploration of direct neutron capture with covariant density functional theory inputs
AU - Zhang, Shi Sheng
AU - Peng, Jin Peng
AU - Smith, M. S.
AU - Arbanas, G.
AU - Kozub, R. L.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/4/10
Y1 - 2015/4/10
N2 - 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 O16 and Ca48, and for the exotic nucleus S36. We then used this approach to calculate the direct neutron capture cross section on the doubly magic unstable nucleus Sn132 which is of interest for the astrophysical r-process.
AB - 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 O16 and Ca48, and for the exotic nucleus S36. We then used this approach to calculate the direct neutron capture cross section on the doubly magic unstable nucleus Sn132 which is of interest for the astrophysical r-process.
UR - http://www.scopus.com/inward/record.url?scp=84928914601&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.91.045802
DO - 10.1103/PhysRevC.91.045802
M3 - Article
AN - SCOPUS:84928914601
SN - 0556-2813
VL - 91
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 4
M1 - 045802
ER -