Level Densities of Residual Nuclei from particle evaporation of [sup 64]Cu

The reactions of 6Li on 58Fe and 7Li on 57Fe have been studied at beam energy 15 MeV. These two reactions produce the same compound nucleus, 64Cu. The neutron, proton, and alpha spectra were measured at backward angles. The data obtained have been compared with Hauser Fesh‐bach model calculations. The level density parameters of the residual nuclei have been obtained from the particle evaporation spectra.