Analysis of fast neutron capture data based on the refined direct-semidirect model

Ca48-Ca40

“…We have used both methods: First we have applied the method of Henneck and Graw, 11 where a combination of the normalized variances of cr and uA yields the relative direct contribution y D to the reaction without any assumption about the effective number of spin channels iV eff 0 We then checked the consistency of this method by describing the extracted cP l with the optical potential obtained by fitting the artifically energy-averaged observable (cx(0)A(0)) which contains no compound-nucleus contribution. 10 A target nucleus 30 Si was…”

Quadrupole Radiation in Fast-Neutron Capture onCa40

“…The area of the peak corresponding to the groundstate transition was obtained by fitting to a standard line shape. Angular distributions were measured at seven angles (45°-140°) for eight incident neutron energies (6)(7)(8)(9)(10)(11)(12)(13). A sample of the data is shown in Fig.…”