MadGraph5_aMC@NLO

How to generate a sample with no hadronization?

Asked by Baktash Amini

Dear Madgraph Team,

I want to generate a sample using mg5_amc@nlo interfaced with Pythia8 and Delphes at particle level with no hadronization. I do not know how to turn off hadronization. Could you please guide me on how to turn off the hadronization?

Looking forward to hearing from you.

Thanks in advance.

Cheers,

Baktash

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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

If you look at this link:
https://pythia.org/latest-manual/MasterSwitches.html

I do believe that the flag that you need to use is

flag HadronLevel:all (default = on)
If off then stop the generation after the hard process and parton-level activity has been generated, but before the hadron-level steps.

This is the flag that you can put in the pythia8_card.dat (only available for LO code)

If you run a NLO+PS run, then I would need to transfer the question to paolo.
Cheers,

Olivier

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Baktash Amini (bamini) said : 		#2

Thanks Olivier Mattelaer, that solved my question.

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Baktash Amini (bamini) said : 		#3

Dear Olivier,

Thank you very much. This solved my problem.

Cheers,

Baktash