MadGraph5_aMC@NLO

same sign vector boson scattering

Asked by Andrew Levin

When I do

mg5>generate p p > w+ w+ p p QED=4, w+ > e+ ve;
mg5>add process p p > w- w- p p QED=4, w- > e- ve~;
mg5>output ww_to_ee

and then look at the file ww_to_ee/SubProcesses/P0_qq_wpwpqq_wp_lvl_wp_lvl/diagrams.html, which you can find here

http://web.mit.edu/~amlevin/www/VBS/21Aug2013/diagrams.html

I don't see the diagram

http://web.mit.edu/~amlevin/www/VBS/16Aug2013/Untitled.png

Does anyone understand this?

Thanks.

Andrew

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

Olivier Mattelaer suggests this article as an answer to your question:

FAQ #1942: “How MadGraph assigns the order (QED/QCD/...) automatically?”.

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Olivier Mattelaer (olivier-mattelaer) said : 		#2

I also suggest to look at the following tutorial (from TASI summer school).
https://cp3.irmp.ucl.ac.be/projects/madgraph/attachment/wiki/TASISchool13/13_06_10_tutomg_tasi.pdf
This is clearly explained in the solution of exercise 1. (the other exercise might be usefull as well)

Cheers,

Olivier

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Andrew Levin (amlevin-g) said : 		#3

I think this is resolves. You need to click on the "Postscript diagrams" link to see all of the diagrams.

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Andrew Levin (amlevin-g) said : 		#4

Thanks Olivier Mattelaer, that solved my question.