The asymmetric fission barriers and the released kinetic energies in the deformation valley leading rapidly to two tangent spherical fragments have been calculated for ${}_{}{}^{194}{}_{}{}^{}\mathrm{Hg}$, ${}_{}{}^{149}{}_{}{}^{}\mathrm{Tb}$, ${}_{}{}^{110\mathrm{-}112}{}_{}{}^{}\mathrm{In}$, ${}_{}{}^{94}{}_{}{}^{}\mathrm{Mo}$, and ${}_{}{}^{75}{}_{}{}^{}\mathrm{Br}$ within the generalized liquid-drop model including the nuclear proximity energy. Results are compared to experimental data and predictions of the Yukawa plus exponential finite range liquid-drop model and the liquid-drop model. The calculated asymmetric fission barrier heights lie between the values obtained by the two other theoretical approaches.

• Received 5 December 1994

DOI:https://doi.org/10.1103/PhysRevC.51.2813