标题： 底态和激发态 charm 夸克介子与轻介子的离解截面在夸克模型中 显示英文标题

标题： Dissociation cross sections of ground-state and excited charmonia with light mesons in the quark model

摘要： 我们给出了基态、轨道激发和径向激发的J/ψ在与轻介子碰撞中的解离截面的数值结果。 我们的结果是通过非相对论夸克模型得出的，因此所有参数都是通过拟合实验介子谱确定的。 考虑了进入独态和漫态最终态的解离示例。 几种C=(+)的J/ψ的解离截面可能对重离子碰撞的研究具有重要意义，因为这些状态预计会比J/ψ更大量产生。 通过依赖$\sqrt {s}$的J/ψ解离截面，展示了π介子-J/ψ碰撞中基态和轨道激发的D介子产生的相对重要性。 显示英文摘要

摘要： We present numerical results for the dissociation cross sections of ground-state, orbitally- and radially-excited charmonia in collisions with light mesons. Our results are derived using the nonrelativistic quark model, so all parameters are determined by fits to the experimental meson spectrum. Examples of dissociation into both exclusive and inclusive final states are considered. The dissociation cross sections of several C=(+) charmonia may be of considerable importance for the study of heavy ion collisions, since these states are expected to be produced more copiously than the J/psi. The relative importance of the productions of ground-state and orbitally-excited charmed mesons in a pion-charmonium collision is demonstrated through the $\sqrt {s}$-dependent charmonium dissociation cross sections.