Comphep manual

CompHEP is a package for automatic calculations of elementary particle decay and collision properties in the lowest order of perturbation theory (the tree approximation). The main idea prescribed into the CompHEP is to make available passing on fromEstimated Reading Time: 14 mins.  · Comphep is a Matrix Element Monte Carlo (MC) Generator (MEG). As a MEG, it generates partons based on a Lagrangian. It gives 3-momenta of partons involved in a given process as an output on an event-by-event basis. These events can be further passed to Showering/Hadronization MC Generator (SHG) like Pythia and Herwig/Jimmy to achieve stable. CompHEP is a menu-driven system with the context help. The notations used in CompHEP are very similar to those used in particle physics. The present version has 4 built-in physical models. Two of them are the versions of the Standard Model (SU(3)xSU(2)xU(1)) in the unitary and t’Hooft - Feynman gauges. The user can change particle interaction and.

CompHEP is a package for automatic calculations of elementary particle decay and collision properties in the lowest order of perturbation theory (the tree approximation). CompHEP is a menu-driven system with the context help. The notations used in CompHEP are very similar to those used in particle physics. The present version has 4 built-in physical models. Two of them are the versions of the Standard Model (SU(3)xSU(2)xU(1)) in the unitary and t’Hooft - Feynman gauges. The user can change particle interaction and. The CompHEP package was created for calculation of multiparticle final states in collision and decay processes. The main idea in CompHEP was to enable one to go directly from the Lagrangian to the cross sections and distributions effectively, with the high level of automation.

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