CompHEP - Specialized package for automatic calculations of elementary particle decays and collisions

TL;DR

CompHEP is an automated software package designed to efficiently calculate elementary particle decay and collision processes at tree level, aiding collider physics research and new physics detection.

Contribution

It introduces a specialized, automated tool for calculating particle reactions from Lagrangian to distributions, streamlining collider physics computations.

Findings

Automates decay and collision calculations at tree level.

Facilitates analysis of reactions for new physics signatures.

Enhances efficiency in collider physics predictions.

Abstract

At present time when a new generation of TeV colliders are beginning to operate one needs to calculate cross-sections for a great number of various reactions. Such calculations are united in the framework of the collider physical program, providing definite predictions how to detect the signatures of the new physics and separate them from the background. The CompHEP package was created for calculation of decay and high energy collision processes of elementary particles in the lowest order (tree) approximation. The main idea put into the CompHEP was to make available passing from the lagrangian to the final distributions effectively with the high level of automatization what is extremely needed in collider physics.