Title

Direct neutron capture cross section on Ge 80 and probing shape coexistence in neutron-rich nuclei

Document Type

Article

Publication Date

10-23-2019

Abstract

Results are presented from the first neutron-transfer measurement on Ge80 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 Ge81 are determined, and the neutron capture cross section on Ge80 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 Ni78 are discussed.

Publication Source (Journal or Book title)

Physical Review C

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