Abstract
Photoneutron cross sections were measured for and at energies below two-neutron threshold using quasimonochromatic -ray beams produced in laser Compton scattering at the NewSUBARU synchrotron radiation facility. The photoneutron data are used to constrain the -ray strength function on the basis of the Hartree-Fock-Bogolyubov plus quasiparticle random phase approximation using the Gogny interaction. Supplementing the experimentally constrained -ray strength function with the zero-limit and contributions, which are unique to the deexcitation mode, we discuss radiative neutron capture cross sections relevant to the -process nucleosynthesis of barium isotopes in the vicinity of the neutron magic number 82.
1 More- Received 18 June 2019
DOI:https://doi.org/10.1103/PhysRevC.100.034605
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