Computer Physics Communications Program LibraryPrograms in Physics & Physical Chemistry |

[Licence| Download | New Version Template] aeov_v1_0.tar.gz(800 Kbytes) | ||
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Manuscript Title: CalcHEP 3.4 for collider physics within and beyond the Standard Model | ||

Authors: Alexander Belyaev, Neil D. Christensen, Alexander Pukhov | ||

Program title: CalcHEP | ||

Catalogue identifier: AEOV_v1_0Distribution format: tar.gz | ||

Journal reference: Comput. Phys. Commun. 184(2013)1729 | ||

Programming language: C. | ||

Computer: PC, MAC, Unix Workstations. | ||

Operating system: Unix. | ||

RAM: Depends on process under study | ||

Keywords: Matrix element generator, Event generator, Feynman diagram calculator. | ||

Classification: 4.4, 5. | ||

External routines: X11 | ||

Nature of problem:- Implement new models of particle interactions.
- Generate Feynman diagrams for a physical process in any implemented theoretical model.
- Integrate phase space for Feynman diagrams to obtain cross sections or particle widths taking into account kinematical cuts.
- Simulate collisions at modern colliders and generate respective unweighted events.
- Mix events for different subprocesses and connect them with the decays of unstable particles.
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Solution method:- Symbolic calculations.
- Squared Feynman diagram approach
- Vegas Monte Carlo algorithm.
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Restrictions:Up to 2 → 4 production (1 → 5 decay) processes are realistic on typical computers. Higher multiplicities sometimes possible for specific 2 → 5 and 2 → 6 processes. | ||

Unusual features:Graphical user interface, symbolic algebra calculation of squared matrix element, parallelization on a pbs cluster. | ||

Running time:Depends strongly on the process. For a typical 2 → 2 process it takes seconds. For 2 → 3 processes the typical running time is of the order of minutes. For higher multiplicities it could take much longer. |

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