Relativistic kinematics for two-body final states

Title of program: TWOBDY
Catalogue Id: ABOS_v1_0

Nature of problem
Although two-body reactions occur within a plane, it is convenient to specify all momentum vectors using three-dimensional rectangular coordinates. Such a formulation permits different orientations of the beam or that of the detected outgoing particles to be more easily described. Use of rectangular coordinates to describe both position and momentum is convenient for finite-geometry kinematic calculations and results in greater speed of calculation since trancendental functions, (other than squa ...

Versions of this program held in the CPC repository in Mendeley Data
ABOS_v1_0; TWOBDY; 10.1016/0010-4655(72)90013-6

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

程序名称：TWOBDY
目录编号：ABOS_v1_0

问题本质：尽管两体反应均发生于平面内，但采用三维直角坐标系描述全部动量矢量会更为便捷。该表述方式可更轻松地刻画束流或探测得到的出射粒子的不同取向。借助直角坐标系同时描述位置与动量，在有限几何运动学计算中极具便利性；且由于无需处理除平方以外的超越函数，还可大幅提升计算速度（原文此处截断为squa...）。

该程序在Mendeley Data的CPC程序库中的存档版本为：ABOS_v1_0; TWOBDY; 10.1016/0010-4655(72)90013-6

本程序源自贝尔法斯特女王大学所托管的CPC程序库（1969-2019年）。