MadGraph5_aMC@NLO

Using Hidden Valley Module

Asked by raseeb haroon

Hi,

I want to shower the t-channel model using the following repository ( https://github.com/smsharma/semi-visible-jets ) in madgraph's Pythia HV module. Is there any specific MG5 version to use? How do I set the settings for showers (if I can)?
If there is anything else to look out for please let me know, I would appreciate the help.

Best Regards,
Raseeb

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

Hi,

I guess the github link that you provide contains more information that I have on such type of model and on the interface to pythia8.
Reading those documents (and the associated fork) my only suggestion would be to change the pdg code within the UFO model rather than changing as post-processing within the lhef file.

Cheers,

Olivier

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raseeb haroon (raseebharoon) said : 		#2

Hi,

I'll keep that in mind. Is there any version of madgraph or resources would you recommend for using the HV Pythia module in madgraph.

Thank You,
Raseeb

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Olivier Mattelaer (olivier-mattelaer) said : 		#3

I would likely recommend 2.9.14 since this is our long term stable version and I do not think that you need the additional feature introduced in 3.x, if you have already using 3.x version for another project then you can continue to use that version obviously.

Cheers,

Olivier

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raseeb haroon (raseebharoon) said : 		#4

Thanks Olivier Mattelaer, that solved my question.

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raseeb haroon (raseebharoon) said : 		#5

Hi Oliver,

I there a way to first generate the lhe and then separately shower it using the Pythia in Madgraph itself?

Best Regards,
Raseeb

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Best Olivier Mattelaer (olivier-mattelaer) said : 		#6

You can use the ./bin/madevent executable and then run
pythia8 run_01

Cheers,

Olivier

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raseeb haroon (raseebharoon) said : 		#7
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raseeb haroon (raseebharoon) said : 		#8

Thanks Olivier Mattelaer, that solved my question.