MadGraph5_aMC@NLO

p p -> w+ w+ j j -> h+ h+ j j process with 2HDM model

Asked by lukeskywalker

I want to generate a process " p p -> w+ w+ j j -> h+ h+ j j " with 2HDM model and get a cross section but when I type "generate p p > w+ w+ j j > h+ h+ j j" it shows
INFO: Checking for minimal orders which gives processes.
INFO: Please specify coupling orders to bypass this step.
INFO: Trying process: u u > w+ g u c d s u~ c~ d~ s~ > h+ h+ d d WEIGHTED<=22 @1
INFO: Trying process: u u > w+ g u c d s u~ c~ d~ s~ > h+ h+ d s WEIGHTED<=22 @1
INFO: Trying process: u u > w+ g u c d s u~ c~ d~ s~ > h+ h+ s s WEIGHTED<=22 @1
.
.
INFO: Trying process: s~ s~ > w+ g u c d s u~ c~ d~ s~ > h+ h+ u~ c~ WEIGHTED<=22 @1
INFO: Trying process: s~ s~ > w+ g u c d s u~ c~ d~ s~ > h+ h+ c~ c~ WEIGHTED<=22 @1
Command "generate p p > w+ w+ j j > h+ h+ j j " interrupted in sub-command:
"generate p p > w+ w+ j j > h+ h+ j j" with error:
NoDiagramException : No amplitudes generated from process Process: g/u/c/d/s/u~/c~/d~/s~ g/u/c/d/s/u~/c~/d~/s~ > w+ g u c d s u~ c~ d~ s~> h+ h+ g/u/c/d/s/u~/c~/d~/s~ g/u/c/d/s/u~/c~/d~/s~ WEIGHTED=22 @1. Please enter a valid process.
I want to know why there is only one w+ boson in INFO and how can I generate the very process which I want.

thanks
luke

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MadGraph5_aMC@NLO Edit question
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Solved by:
Olivier Mattelaer
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Best Olivier Mattelaer (olivier-mattelaer) said : 		#1

The syntax definition for particle between ">" is:
Veto all feynman diagram where such particles is not present in a S-channel.
Putting multiple times the same particles between ">" is therefore meaningless since such veto is idempotent.

Now I do not know what kind of process you are looking at, I would guess that you are looking for VBF type of generation.
In that case, you are likely looking for
generate p p > h+ h+ j j QCD=0

Cheers,

Olivier palpatine

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lukeskywalker (luke19941001) said : 		#2

Thank you very much. I just lookin for the process as you guess and that's do help me a lot . thanks again.

happy new year
luke

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lukeskywalker (luke19941001) said : 		#3

Thanks Olivier Mattelaer, that solved my question.