The effects of final-state interaction of hadrons, produced in $e^{+}{e}^{-}$ annihilation near the threshold, are discussed. If there is a loosely bound state or a virtual state in a system of produced hadrons, then the energy dependence of hadroproduction cross section is very strong. Our approach is based on the use of the effective potentials accounting for the interaction between hadrons in the final state. The cases of a few channels with nonzero transition amplitudes between them are considered. It is shown that these transitions drastically change the energy dependence of the cross sections. In particular, a narrow resonance below the threshold in one channel leads to a broad peak in another channel. We explained the non-trivial energy dependence of the production cross sections of $B\overline{B}$, $B^{⁎}\overline{B}$, $B{\overline{B}}^{⁎}$, $B^{⁎}{\overline{B}}^{⁎}$ near the thresholds in $e^{+}{e}^{-}$ annihilation and obtained good agreement between our predictions and the experimental data available.

强子最终状态相互作用的影响，产生于$e^{+}{e}^{-}$讨论了阈值附近的湮灭。如果在产生强子的系统中存在松散束缚态或虚态，则强子产生截面的能量依赖性非常强。我们的方法基于使用有效势来解释最终状态下强子之间的相互作用。考虑几个通道之间具有非零过渡幅度的情况。结果表明，这些转变极大地改变了横截面的能量依赖性。特别是，一个通道中低于阈值的窄共振会导致另一通道中出现宽峰。我们解释了生产截面的重要能量依赖性$乙\stackrel{￣}{乙}$,${乙}^{⁎}\stackrel{￣}{乙}$,$乙{\stackrel{￣}{乙}}^{⁎}$,${乙}^{⁎}{\stackrel{￣}{乙}}^{⁎}$接近阈值$e^{+}{e}^{-}$湮灭并在我们的预测和可用的实验数据之间获得了良好的一致性。