Symmetric splitting of very light systems

Abstract

Inclusive and coincidence measurements have been performed to study symmetric products from the reactions 74—186 MeV ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$+${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$, 141 MeV ${}_{}{}^9{}_{}{}^{}\mathrm{Be}$+${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$, and 153 MeV ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$+${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$. The binary decay of the composite system has been verified. Energy spectra, angular distributions, and fragment correlations are presented. The total kinetic energies for the symmetric products from these very light composite systems are compared to liquid drop model calculations and fission systematics.