gluinos and CKKW(L) merging with Pythia8

Hi,

To be honest, I do not know.
This setup (and how it works) was requested by S. Prestzel which is the expert in matching/merging.
Now, you also want to regulate the soft emission from those particles so it does make sense to me.
But I would suggest to contact Stefan for more details.

Cheers,

Olivier

> On 3 Jun 2019, at 17:17, andlessa <email address hidden> wrote:
>
> New question #681213 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/681213
>
> Hi,
>
> I have a question about the CKKW matching with Pythia8. I have a simple process: gluino pair production with up to one additional parton (the decays are done in Pythia).
> I see that by default the ktdurham cut in run_card.dat also applies to the gluino final states:
>
> 1, 2, 3, 4, 5, 6, 21, ... 1000021,... = pdgs_for_merging_cut ! PDGs for two cuts above
>
> Does this make sense? As far as I understand the cut should be used to regulate the soft emission of the light partons,
> so I'm not sure why the gluino pdg is there.
> Also I've noticed that including or not the gluino PDG has a significant impact on the cross-section/merged events.
>
> Cheers,
>
> -Andre
>
>
>
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