MadAnalysis 5

LHE ordering

Asked by Olivier Mattelaer

hi,

Do you have have the possibillity to order the particle at parton-level by the order in which they are written in the leshouches file?
Obviously the only interest is debugging to check if distribution that should be identical are indeed identical.

Cheers,

Olivier

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Jack Y. Araz (jackaraz) said : 		#1

Dear Olivier

The particles are already ordered as written in the LHE file you can use the following piece to access them;

```
for (MAuint32 i=0;i<event.mc()->particles().size();i++)
{
 INFO << "P " << i << " : " << event.mc()->particles()[i].pdgid() << ", " << event.mc()->particles()[i].px() << endmsg;
}
```

Hope it helps
Best regards

—
Jack Y. Araz

> On Mar 20, 2021, at 8:50 PM, Olivier Mattelaer <email address hidden> wrote:
>
> [EXTERNAL EMAIL]
>
> New question #696158 on MadAnalysis 5:
> https://answers.launchpad.net/madanalysis5/+question/696158
>
> hi,
>
> Do you have have the possibillity to order the particle at parton-level by the order in which they are written in the leshouches file?
> Obviously the only interest is debugging to check if distribution that should be identical are indeed identical.
>
> Cheers,
>
> Olivier
>
> --
> You received this question notification because you are an answer
> contact for MadAnalysis 5.

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