Abstract
Photoneutron cross sections were measured for the seven stable samarium isotopes near the neutron threshold with quasi-monochromatic laser-Compton scattering . Our photoneutron cross sections are found to be low by 20%–37% relative to existing data. The photoneutron data are analyzed with the talys reaction code by considering the Skyrme Hartree-Fock-Bogoliubov (HFB) plus quasiparticle random phase approximation (QRPA) model and the axially symmetric deformed Gogny HFB plus QRPA model of the strength. Using the strength function constrained by the present photoneutron data, we made a thorough analysis of the reverse cross sections including the radioactive nucleus with a half-life of 90 yr. The radiative neutron capture cross section for with the half-life of 1.928 d is deduced with the strength function method.
9 More- Received 6 October 2014
- Revised 24 November 2014
DOI:https://doi.org/10.1103/PhysRevC.90.064616
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