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本文讨论了非相对论、切断库仑势的S矩阵元在复轨道角动量和复能量平面上的解析性质。在四种特殊情况下,求得了这S矩阵元的Regge极点。最后,在一般情况下,用数值计算了这S矩阵元的起始的两条Regge轨迹。In this paper, the analytical properties of the S matrix of nonrelativistic cut-off Coulomb potential in the complex angular momentum and complex energy planes are discussed. The Regge poles of this S matrix for four special cases are given, and the first two Regge trajectories are traced by means of numerical calculations.
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