Determination of Particle Kinematic Parameters and Their Statistical Errors by Traces in a Bubble Chamber.

摘要

The problem of determination of particle kinematic parameters is considered. More accurate calculation method of kinematic parameters and their statistical errors is described. This method is based on the exact solution of differential equations of relativistic particle motion in a substance with an inhomogeneous magnetic field. It is supposed that the particle track is given by a set of skew lines, which consist of rays passing from the focuses of the cameras to the chamber. The zeroth approximation of kinematic parameters are chosen in a very rough form: the space points constructed with two skew lines belonging to different stereoprojections of the track are used. In accordance with the method described the modelling programs are written, which provide a good accuracy in determination of particle kinematic parameters (approximately 5% for 1 GeV/c). (Atomindex citation 10:488514)