标题： COLOSS：复数缩放光学和库仑散射求解器 显示英文标题

标题： COLOSS: Complex-scaled Optical and couLOmb Scattering Solver

摘要： 我们介绍COLOSS，这是一个程序，旨在使用一种称为复数缩放的束缚态技术来解决散射问题。 在此方法中，波函数的振荡边界条件被转化为指数衰减的形式，以适应长程库仑相互作用。 该程序实现了现实光学势的Woods-Saxon形式，所有势参数都包含在一个设计良好的输入格式中，以便于使用。 这种设计为用户提供了直接计算 \(S\)-矩阵和散射过程的截面的便捷途径。 我们对拉格朗日函数的精度进行了详尽的讨论，并阐述了它们在计算矩阵元中的优势。 此外，COLOSS包含了两种不同的旋转方法，使其能够适应没有解析表达式的势。 比较结果表明，与直接积分方法、Numerov方法相比，COLOSS具有高精度，突显了其在散射计算中的实用性和有效性。 显示英文摘要

摘要： We introduce COLOSS, a program designed to address the scattering problem using a bound-state technique known as complex scaling. In this method, the oscillatory boundary conditions of the wave function are transformed into exponentially decaying ones, accommodating the long-range Coulomb interaction. The program implements the Woods-Saxon form of a realistic optical potential, with all potential parameters included in a well-designed input format for ease of use. This design offers users straightforward access to compute \(S\)-matrices and cross-sections of the scattering process. We provide thorough discussions on the precision of Lagrange functions and their benefits in evaluating matrix elements. Additionally, COLOSS incorporates two distinct rotation methods, making it adaptable to potentials without analytical expressions. Comparative results demonstrate that COLOSS achieves high accuracy when compared with the direct integration method, Numerov, underscoring its utility and effectiveness in scattering calculations.