MadGraph5_aMC@NLO

p p > ta- vt~ [QCD]

Asked by Guglielmo Coloretti

Dear all,

I am having trouble generating

p p > ta- vt~ [QCD]

using the SM model file. I would like to use PYTHIA8 to shower the events but the hepmc output is an empty file. I tried the same generation at NLO in QCD with muons and electrons and all worked fine. Also, at LO all is working fine with all three generations. I could not come up with a reason why this is happening.

I thank you very much for your help!

Best regards,
Guglielmo Coloretti

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Guglielmo Coloretti (guglielmocoloretti) said : 		#1

Also, a follow up question if I may:

I realised I can decay the taus (I am just interested in the leptonic decays) and compute the process at NLO in QCD. However, if I specify the option [all=QCD], also the diagrams with EW corrections are displayed.

I was wondering if there is a way to exclude [QED] NLO corrections.

Thank you very much for your help!

Best regards,
Guglielmo Coloretti

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