Direct neutron capture cross section on 80Ge and probing shape coexistence in neutron-rich nuclei
Abstract
Results are presented from the first neutron-transfer measurement on 80Ge using an exotic beam from the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. Newly measured spins and spectroscopic factors of low-lying states of 81Ge are determined, and the neutron capture cross section on 80Ge was calculated in a direct-semidirect model to provide a more realistic (n ,γ ) reaction rate for r -process simulations. Furthermore, a region of shape coexistence around N ≈50 is confirmed and implications for the magic nature of 78Ni are discussed.
- Publication:
-
Physical Review C
- Pub Date:
- October 2019
- DOI:
- 10.1103/PhysRevC.100.044613
- Bibcode:
- 2019PhRvC.100d4613A