Impact of a low-energy enhancement in the gamma-ray strength function on the radiative neutron-capture

摘要

A low-energy enhancement of the gamma-ray strength function in several lightand medium-mass nuclei has been observed recently in 3He-induced reactions. Theeffect of this enhancement on (n,gamma) cross-sections is investigated forstable and unstable neutron-rich Fe, Mo and Cd isotopes. Our results indicatethat the radiative neutron capture cross sections may increase considerably dueto the low-energy enhancement when approaching the neutron drip line. Thiscould have non-negligible consequences on r-process nucleosynthesiscalculations.