正负电子对湮灭中的近阈共振态
Near-threshold resonances in $e^+e^-$ annihilation
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中文总结 AI 辅助
本研究通过综述指出，末态相互作用可解释近阈共振态导致的反应截面异常，对这类共振态的研究能获取大距离强子相互作用的新信息。
中文摘要 AI 辅助
近阈共振态已在多个强子对产生过程中被发现，导致产生粒子相对速度较低时反应截面显著增大。这类共振态的自然成因是末态慢强子间的相互作用。本综述表明，在几乎所有已知案例中，末态相互作用都能成功解释众多实验结果，这些实验展现了反应阈附近过程截面的非平凡能量依赖关系。对各类过程中近阈共振态的综合研究，可提供关于大距离强子相互作用的新信息。
英文摘要
Near-threshold resonances have been discovered in many hadron pair production processes, resulting in a significant increase in reaction cross sections at low relative velocities of the produced particles. The natural cause of such resonances is the interaction between slow hadrons in the final state. Our review demonstrates that, in virtually all known cases, final-state interactions successfully explain the results of numerous experiments demonstrating a nontrivial energy dependence of cross sections for processes near reaction thresholds. A comprehensive study of near-threshold resonances in various processes can provide new information about the interaction between hadrons at large distances.
