Emission of intermediate mass fragments using γ-spectroscopic techniques

Intermediate mass fragments (IMF) and light particles emitted from the ${}^{58}{\mathrm{N}\mathrm{i}+}^{58}\mathrm{Ni}$ reaction at a beam energy of 375 MeV have been studied. The fragments and light particles were measured in coincidence with 4π γ-ray spectrometer. The $Z=6\mathrm{}$ (C) kinetic energy spectra and the distribution of the final nuclei in coincidence with the emitted C are well described by Hauser-Feshbach calculations extended to many channels. A detailed study of C-γ and 3α-γ correlations indicate a strong selectivity of the IMF decay. Our results indicate that the IMF can populate nuclei that are not accessible via multiple light particle $\mathrm{}(Z<\mathrm{}3\mathrm{})\mathrm{}$ emission and, thus, are useful for nuclear structure studies.