Abstract
On the basis of the continuity equation, the concept of a complex potential, and the exciton model of nuclear reactions, an expression was derived that establishes the relation between three time characteristics associated with different reaction stages. It is shown that an empirical systematics relating the coherence widths to the temperature of compound nuclei is a high-temperature limit of this expression, which determines empirical coefficients in terms of quantities similar to volume absorption integrals per nucleon that appear in optical-model calculations. The possibility of estimating the energy dependence of these quantities on the basis of experimental data on the total widths of neutron resonances, measured mean lifetimes of compound nuclei, and data on coherence widths is discussed.
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