MadGraph5_aMC@NLO

How can I plot distribution diagrams?

Asked by Yaroslav Basov

Hello!

I'm a beginner, so I can't do some things I need.

I generate process z > e+ e- using sm model. After calculation I get results: total width and events. How can I plot some diargrams, i.e. differential width (dW/dE, E is energy of e+ or e-)?

Also I have a question about Events. There is a file unweighted_events.lhe.gz in output_folder/Events/run_01, where I found events:
<event>
 3 1 +8.3965000e-02 9.11880000e+01 7.54677100e-03 1.18000000e-01
       23 -1 0 0 0 0 +0.0000000000e+00 +0.0000000000e+00 +9.9999998245e-15 9.1188000000e+01 9.1188000000e+01 0.0000e+00 1.0000e+00
      -11 1 1 0 0 0 -4.0432013397e+00 +2.9606072177e+01 -3.4437564507e+01 4.5594000000e+01 0.0000000000e+00 0.0000e+00 -1.0000e+00
       11 1 1 0 0 0 +4.0432013397e+00 -2.9606072177e+01 +3.4437564507e+01 4.5594000000e+01 0.0000000000e+00 0.0000e+00 1.0000e+00
</event>
Where can I find a tutorial with an explanation of this parameters?

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Solved by:
Olivier Mattelaer
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Best Olivier Mattelaer (olivier-mattelaer) said : 		#1

Hi,

Did you try to use MadAnalysis5?
I have just tried it and it worked for the plot that you asked (well obviously for the example that you ask, the plot is quite boring and could have been guessed since obviously all the electron have MZ/2 energy.)

For the explanation of the parameter, the best is that you read the official paper describing the format:
https://arxiv.org/pdf/hep-ph/0609017

Cheers,

Olivier

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Yaroslav Basov (yabasov) said : 		#2

Thanks Olivier Mattelaer, that solved my question.