MadAnalysis 5

Differential distributions and hepmc files

Asked by msadek

Hi,

I want to compare some differential distribution (PT(t t~) of the top quark pair production p p-> t tbar, for example) at fNLO (fixed-order NLO) and NLO+PS (NLO matched to parton shower, pythia8 for example), using MadGraph and MadAnalysis.

When I run MadGraph in the NLO+PS mode, I got two event files: "event.lhe.gz" and "events_PYTHIA8_0.hepmc.gz"... I check the particles content of the hepmc file by MadAnalysis (plot NPID), i found only hadrons and leptons...

 Could you please show me how to plot PT(t t~) distribution from the hepmc file?

Cheers,
Sadek

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Benjamin Fuks (fuks) said : 		#1

Hi Sadek,

You need to use the interstate option.

Cheers,

Benjamin

> On 25 Dec 2017, at 11:02 , msadek <email address hidden> wrote:
>
> New question #662208 on MadAnalysis 5:
> https://answers.launchpad.net/madanalysis5/+question/662208
>
> Hi,
>
> I want to compare some differential distribution (PT(t t~) of the top quark pair production p p-> t tbar, for example) at fNLO (fixed-order NLO) and NLO+PS (NLO matched to parton shower, pythia8 for example), using MadGraph and MadAnalysis.
>
> When I run MadGraph in the NLO+PS mode, I got two event files: "event.lhe.gz" and "events_PYTHIA8_0.hepmc.gz"... I check the particles content of the hepmc file by MadAnalysis (plot NPID), i found only hadrons and leptons...
>
> Could you please show me how to plot PT(t t~) distribution from the hepmc file?
>
> Cheers,
> Sadek
>
>
>
>
> --
> You received this question notification because you are an answer
> contact for MadAnalysis 5.

Revision history for this message
msadek (msadek) said : 		#2

Thank you.

Sadek