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Tips and tricks to run MadGraph with Contur's MadGraph steering codes.
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We will use the model file provided by B. Fuks and R. Ruiz in FeynRules database page [link](http://feynrules.irmp.ucl.ac.be/wiki/WZPrimeAtNLO) as an example. Contur scan will be performed on the mass of Z' `mzp` and Z' coupling values to fermions `kl`
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We will use the model file provided by B. Fuks and R. Ruiz in FeynRules database page [link](http://feynrules.irmp.ucl.ac.be/wiki/WZPrimeAtNLO) as an example. Contur scan will be performed on the mass of Z' `mzp` and Z' coupling values to fermions `kl` with muon pair (using MadSpin) or top pair decays (not using MadSpin).
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# Preparing MadGraph cards
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MadGraph needs some set of cards to run
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*a. proc_card.dat* : define the physics process to run
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*b. run_card.dat* : define the run settings (e.g. beam E, phase space cuts, PDF, number of events to run, ...)
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*c. pythia8_card.dat* : showering settings in Pythia8 (e.g. jet merging scales, MPI, ...)
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*d. madspin_card.dat* : define the resonance decays for special cases (loop-induced or NLO processes)
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MadGraph needs some set of cards to run.
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- **proc_card.dat** : define the physics process to run (e.g. p p > e+ e-)
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- **run_card.dat** : define the run settings (e.g. beam E, phase space cuts, PDF, number of events to run, ...)
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- **pythia8_card.dat** : showering settings in Pythia8 (e.g. jet merging scales, MPI, ...)
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- **madspin_card.dat** : define the resonance decays for special cases (loop-induced or NLO processes)
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If you are not too familiar with MadGraph, please checkout [link](https://launchpad.net/mg5amcnlo) for more details/instructions.
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```
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# preparing the Contur-style MadGraph proc_card
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