Farm — A flexible asymptotic R-matrix package

Abstract
The R-matrix formalism has been highly successful in describing a wide range of atomic and molecular scattering problems. A computational bottleneck in these calculations is the treatment of the scattering in the external region of configuration space where exchange effects may be neglected. A new package for solving this external region scattering problem is described. The package uses a combination of R-matrix propagation techniques to ensure optimum stability and efficiency in integrating ...

Title of program: FARM
Catalogue Id: ADAZ_v1_0

Nature of problem
The program solves the scattering problem in the asymptotic region of R-matrix theory where exchange is negligible.

Versions of this program held in the CPC repository in Mendeley Data
ADAZ_v1_0; FARM; 10.1016/0010-4655(94)00178-5
ADAZ_v1_1; FARM_2DRMP; 10.1016/j.cpc.2009.07.017

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)

摘要
R矩阵（R-matrix）形式体系已被广泛且成功地应用于各类原子与分子散射问题的描述。此类计算的核心计算瓶颈之一，是对构型空间（configuration space）外区域的散射处理——该区域内交换效应可被忽略。本文介绍一款用于求解该外区域散射问题的新型计算程序包，该程序包结合采用R矩阵传播技术，以确保积分过程具备最优稳定性与计算效率……

程序名称：FARM
目录编号：ADAZ_v1_0

问题本质
本程序用于求解R矩阵理论中交换效应可忽略的渐近区域内的散射问题。

孟德莱数据（Mendeley Data）中《计算机物理学报》（Computer Physics Communications，简称CPC）程序库收录的本程序版本：
ADAZ_v1_0; FARM; 10.1016/0010-4655(94)00178-5
ADAZ_v1_1; FARM_2DRMP; 10.1016/j.cpc.2009.07.017

本程序源自贝尔法斯特女王大学馆藏的CPC程序库（1969-2018年）