Measurement of Mass-Angle and Mass-Total Kinetic Energy Distributions from the Fission of 190pt Compound Nucleus

We have measured the fission fragment mass-angle and mass-total kinetic energy (TKE) distributions for the neutron-deficient Pt-190 compound nucleus (CN) populated via C-12 + Hf-178 reaction, at around and above barrier energies. No mass-angle correlation was observed in the fission of Pt-190 signifying the absence of quasi-fission events in the studied reaction. The observed mass-TKE distributions have expected triangular shape and TKE distributions are well described with the single Gaussian fits, and mean TKE shows parabolic dependence on fragment mass as predicted based on liquid drop fission behaviour. The widths of measured TKE distributions agree well with the observed systematics for CN fission in this mass region. Though the CN is relatively neutron deficient, these observations suggest a clear picture of true CN fission behaviour for the chosen reaction in the studied energy domain.