标题： 高自旋共振态的强相互作用和电磁相互作用的有效拉格朗日量 显示英文标题

标题： Effective Lagrangian for strong and electromagnetic interactions of high-spin resonances

摘要： 最近的光子-核子和介子-核子散射实验积累了大量关于各种介子产生过程的数据。 这些实验的目的之一是寻找尚未发现但被强子模型预测存在的缺失共振态。 数据分析需要发展动态耦合通道模型。 由于预期几个缺失共振态的自旋高于3/2，我们需要在动态耦合通道模型中包含更高自旋的共振态，这使我们能够确定高自旋重子与赝标介子或矢量介子的有效拉格朗日量的耦合。 然而，强子模型，如夸克模型，仅能预测这些重子的衰变振幅。 在这里，我们展示了高自旋共振态的形式理论，并建立了有效拉格朗日量的耦合常数与强子模型可以预测的部分衰变宽度之间的关系。 这使我们不仅能比较耦合常数的大小，还能比较其符号。 显示英文摘要

摘要： Recent experiments of photon-nucleon and meson-nucleon scatterings have accumulated a lot of data for various meson production processes. One of the purposes of those experiments is to search for the missing resonances which are not discovered until now but whose existence was predicted by hadron models. The analyses of the data requires the development of dynamical coupled-channel models. Since several missing resonances are expected to have spin higher than 3/2, we need to include higher-spin resonances in dynamical coupled-channel models, which enable us to determine the couplings of effective Lagrangians of higher-spin baryons with pseudoscalar mesons or vector mesons. However, hadron models, such as quark models, give predictions only of the decay amplitudes of such baryons. Here we demonstrate the formalism of high-spin resonances and construct the relation between the coupling constants of effective Lagrangians and the partial decay widths that can be predicted by hadron models. This allows us to compare the coupling constants to the hadron model predictions not only in magnitude but in sign as well.