On the prediction of the integrated cross section for the capture of fast neutrons

Experimental data of the reactions 89Y (n, γ), 140Ce (n, γ) and 208Pb (n, γ) are compared with the calculations based on the direct-semidirect (DSD) model in order to test its predictive power for the sum of primary γ-ray transitions to the bound states (integrated cross sections). The results, utilising the well known spectroscopic data of the final states, are confronted with the estimate in which single-particle levels are generated from the common Saxon-Woods potential. Small differences in these two calculations indicate that such estimate may be quite acceptable in cases where adequate spectroscopic information on the final nucleus is not available. (orig.)