Calculation of QED graphs with the spinor technique

Abstract
QED tree diagrams are calculated with the spinor technique using symbolic algebra. A first program SPINORP1 calculates all topologically distinct diagrams. The input are the number and kinds of particles. A second program SPINORP2 generates a REDUCE source program to evaluate the spinor amplitude for all possible polarizations of the external particles.

Title of program: SPINORP
Catalogue Id: ABLN_v1_0

Nature of problem
Symbolic calculation of QED tree diagrams with the help of the spinor product method.

Versions of this program held in the CPC repository in Mendeley Data
ABLN_v1_0; SPINORP; 10.1016/0010-4655(90)90021-R

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)

摘要
量子电动力学（Quantum Electrodynamics，QED）树图可借助旋量（spinor）技术结合符号代数完成计算。首个程序SPINORP1可计算全部拓扑结构各异的费曼图，其输入为粒子的数目与种类。第二个程序SPINORP2将生成REDUCE源程序，用于求解外粒子所有可能极化状态下的旋量振幅（spinor amplitude）。

程序名称：SPINORP
目录编号：ABLN_v1_0

问题性质
借助旋量积方法实现QED树图的符号化计算。

本程序在Mendeley数据平台CPC程序库中的存档版本：ABLN_v1_0；SPINORP；10.1016/0010-4655(90)90021-R

本程序源自贝尔法斯特女王大学维护的CPC程序库（1969-2019年）