[Rivet] Exclude the charged leptons from the charged particle selection

[Deepak Kar]

Hi Shayma,

May be I am being naive here, but would not that depend on the process you
are generating? I mean if you for example generate dileptonic ttbar events
at leading order, may be you dont have enough pions?

Cheers,
Deepak

On Wed, Feb 14, 2018 at 9:26 PM, Shayma Wahdan <shayma.wahdan at cern.ch>
wrote:

> Dear Rivet community,
>
> I am trying to exclude the charged leptons from the charged particle
> selection
> what I do exactly:
>
> in the int part I add:
>
>       ChargedFinalState cfs(-2.5, 2.5, 1.0*GeV);
>       addProjection(cfs, "CFS");
>
>     // to exclude the charged leptons
>
>      VetoedFinalState vfs(cfs);
>       vfs.addVetoPairId(PID::ELECTRON);
>       vfs.addVetoPairId(PID::MUON);
>       vfs.addVetoPairId(PID::TAU);
>       addProjection(vfs,"VFS");
>
>
>  and in the analyze
>
>      const ChargedFinalState& ChargedParticleCollection = applyProjection<VetoedFinalState>(event,
> "VFS");
>
> The compliling goes well, while in the running almost none of the events
> get selected.
>
> Any suggestions please??
>
> Note: I got the idea from this Rivet analysis page
> http://rivet.hepforge.org/code/2.2.1/a00496_source.html
>
> Best Regards,
> Shayma'
>
>
>
>
>
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> --
> Deepak Kar
> University of Witwatersrand
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