CompHEP - Integrated computer algebra system
for calculation in High Energy Physics

Victor F. Edneral
Institute for Nuclear Physics of Moscow State University,
Vorobievy Gory, Moscow, 119899, Russia


The report describes facilities of the CompHEP - i.e. creation of new or using of traditional models of particle interactions, an automatic generation of all tree level Feynman diagrams for a given process, squaring and analytic calculations of these diagrams with a generation of results in a REDUCE, MATHEMATICA, FORM readable form or as a FORTRAN or C program. There is developed interface with numerical integrators of generated programs along phase space and with popular packages such as the PYTHIA.

There is described also a brief illustration an usage of CompHEP for a complete tree level calculation for the $e^+ e^- \rightarrow
\nu \bar \nu b \bar b$ process and its comparison with the possible Higgs signal at LEP200 and Next Linear Colliders.


IMACS ACA'98 Electronic Proceedings