标题： 精确方法定位潜在共振和雷杰轨迹 显示英文标题

标题： Exact method for locating potential resonances and Regge trajectories

摘要： 我们提出了一种精确方法，用于定位解析势的Jost函数在复数动量平面内的零点。 我们进一步将该方法扩展到复数角动量平面，以提供Regge轨迹。 通过多个例子表明，无论是存在还是不存在库仑相互作用的情况下，对于极其宽泛或极其狭窄的共振态，都可以得到高度精确的结果。 显示英文摘要

摘要： We propose an exact method for locating the zeros of the Jost function for analytic potentials in the complex momentum--plane. We further extend the method to the complex angular--momentum plane to provide the Regge trajectories. It is shown, by using several examples, that highly accurate results for extremely wide as well as for extremely narrow resonances with or without the presence of the Coulomb interaction can be obtained.