MadEvent
MadGraph / MadEvent is a software that allows you to generate amplitudes and events for any process (with up to 9 external particles) in any model. Implemented models are the Standard Model, Higgs effective couplings, MSSM, the general Two Higgs doublet model, and several minor models, and there is an easy-to-use interface for implementing model extensions. In connection with MG/ME there is also a range of tools, including a Pythia and PGS (detector simulation) package, a Root event analysis package, plotting packages, interfaces to other generators and file converters.
http://madgraph.hep.uiuc.edu/
1. Basic Scripts
- event generator
./generate_events mode [job_name] run_name
mode: paralled(=1) or single machine(=0);
- Phase-space integration
./survey mode [job_name]
- adjust grid and generate events
./refine N mode [job_name]
N: then number of unweighted events to be generated (N>1) or integeration accuracy (N<1)
- generate unweighted events
./unweighted_events
2. Input parameters
- run_card.dat 动力学参数, 包括初态PDF、末态相空间 cuts以及碰撞能标、重整化能标和因子化能标。
- param_card.dat 模型参数，包括耦合系数、粒子质量、衰变宽度等。
3. Event Record
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