In this work, we find a Critical Energy induced Enhancement (CEE) mechanism for the general three-body open-charm process at the $e^{+}{e}^{-}$ collisions, which utilizes the peculiar kinematic behavior of the $e^{+}{e}^{-}$ annihilation process involving three-body final states. We present a general analysis of a three-body process $e^{+}{e}^{-}\to BC\to B(C\to DE)$. When the center-of-mass (CM) energy of the $e^{+}{e}^{-}$ collision satisfies a critical relation $\sqrt{s}=m_B+m_C$, there clearly exists the reflection peak of an intermediate C state near the threshold of the invariant mass distribution of $m_{BE}$ or $m_{BD}$, whose formation is very sensitive to the CM energy. The reflection enhancement phenomenon induced at the critical energy means that a new cluster of charmoniumlike structures can be experimentally mapped. Taking an example of $e^{+}{e}^{-}\to D_s^{⁎-}{D}_{s2}^{⁎}{(2573)}^{+}\to D_s^{⁎-}(D^0{K}^{+})$, we further illustrate this novel phenomenon when $\sqrt{s}=4.680$ GeV. What is more important is that a series of optimal CM energy points to search for new charmoniumlike structures in three-body open-charm processes from $e^{+}{e}^{-}$ annihilation are suggested, which can be accessible at BESIII and further BelleII as a new research topic.

在这项工作中，我们发现了用于一般三体式开放式魅力过程的临界能量诱导增强（CEE）机制。${Ë}^{+}{Ë}^{-}$ 碰撞，利用了特殊的运动学行为 ${Ë}^{+}{Ë}^{-}$involving灭过程涉及三体最终状态。我们对三体过程进行一般分析${Ë}^{+}{Ë}^{-}\to 乙C\to 乙（C\to dE）$。当质心（CM）的能量${Ë}^{+}{Ë}^{-}$ 碰撞满足关键关系 $\sqrt{s}={米}_{乙}+{米}_C$，显然在C不变质量分布的阈值附近存在一个中间C状态的反射峰。${米}_{乙E}$ 或者 ${米}_{乙d}$，其形成对CM能量非常敏感。在临界能量处引起的反射增强现象意味着可以实验性绘制新的团簇状的甲状ium素结构。举一个例子${Ë}^{+}{Ë}^{-}\to d_s^{⁎-}{d}_{s\mathrm{2个}}^{⁎}{（2573）}^{+}\to d_s^{⁎-}（d^0{ķ}^{+}）$，我们将进一步说明这种新颖的现象 $\sqrt{s}=4.680$GeV。更为重要的是，一系列最佳的CM能量点可在三体开放式碳氢化合物工艺中寻找新的类似甲壳的结构。${Ë}^{+}{Ë}^{-}$ 歼灭被建议，可以作为新的研究课题在BESIII和进一步的BelleII上使用。