Software:MadGraph
MadGraph is a computer simulation program [1] created for particle physics for particle accelerators (collider) experiments. It is designed for event generation. The framework aims at providing all the elements necessary for Standard Model and Beyond Standard Model (BSM), such as the computations of cross sections, the generation of hard events and their matching with event generators, and the use of a variety of tools relevant to event manipulation and analysis.
Processes can be simulated to LO accuracy for any user-defined Lagrangian, an the NLO accuracy in the case of models that support this kind of calculations -- prominent among these are QCD and EW corrections to SM processes. Matrix elements at the tree- and one-loop-level can also be obtained.
MadGraph5@aMC@NLO [1] is the version of both MadGraph5 and aMC@NLO that unifies the leading-order (LO) and next-to-leading (NLO) automated calculations within the MadGraph family. It therefore supersedes all the MadGraph5 1.5.x versions and all the beta versions of aMC@NLO. MadGraph5aMC@NLO can handle all these computations – parton-level fixed order, shower-matched, merged – in a unified framework whose defining features are flexibility, high level of parallelisation, and humanin tervention limited to input physics quantities.
Features
The following is a list of some of the features PYTHIA is capable of simulating:
- Hard and soft Parton interactions
- Leading-order (LO) and next-to-leading (NLO) automated calculations
- Basic selection cuts and jet algorithms
- Parton showers and hadronization via Physics:PYTHIA or Herwig generators
History
See also
External links
References
- ↑ 1.0 1.1 The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations, J. Alwall, R. Frederix, S. Frixione, V. Hirschi, F. Maltoni, O. Mattelaer, H.-S. Shao, T. Stelzer, P. Torrielli, M. Zaro, JHEP07(2014)079, DOI: 10.1007/JHEP07(2014)079 https://arxiv.org/abs/1405.0301
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