Abstract:
The mass–energy distributions of fission fragments of excited 180,190Hg nuclei formed in 36Ar +
144,154Sm reactions are measured at incident 36Ar energies of 158, 181, and 222 MeV using the double-arm
time-of-flight spectrometer CORSET. The asymmetric fission of 180,190Hg with the most probable masses of
light and heavy fragments of 79 and 101 amu, and 84 and 106 amu, respectively, is observed in mass distributions
of 180,190Hg at energies of excitation of up to 75 MeV. Two components manifesting the symmetric and
asymmetric fission modes are observed in the kinetic energy distributions.
