Abstract
The microscopic approach of fission rates and neutron emission rates in compound nuclei have been applied to 258No and 286Cn. The microscopic framework is based on the finite-temperature Skyrme-Hartree–Fock+BCS calculations, in which the fission barriers and mass parameters are self-consistently temperature dependent. The fission rates from low to high temperatures can be obtained based on the imaginary free energy method. The neutron emission rates are obtained with neutron gases at surfaces. Finally the survival probabilities of superheavy nuclei can be calculated microscopically. The microscopic approach has been compared to widely used statistical models. Generally, there are still large uncertainties in descriptions of fission rates.
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