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Barriers to the mass-asymmetric fission of ¹¹¹In are calculated in the liquid-drop and in the Yukawa-plus-exponential finite-range models. The calculated barrier heights are compared to those previously inferred from fission excitation functions for $3<~Z<~11$. The liquid-drop-model barriers are about 12 MeV too high, while the finite-range model gives barriers an average of 1.6 MeV too high. This type of experimental data should make possible a more precise determination of the surface-energy and surface-asymmetry coefficients in semiempirical nuclear mass formulas.
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Arnold J. Sierk (1985) studied this question.
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