Is it possible to add QED/NP order to output?

Asked by Rafael Lopes de Sa

Hi,

Is it possible to write the QED and NP order of an event the same way as it is possible to write the QCD order by turning on use_syst?

I've been looking at madgraph/iolibs/export_v4.py, but apparently the NP order is not stored and the stored QED order seems to be the sum of the NP+QED. orders Is it the case? Is there a way to disentangle them?

Thanks,
Rafael.

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Olivier Mattelaer (olivier-mattelaer) said :
#1

Hi,

Indeed this is not possible out of the box.
Implementing the change should be relatively easy since they should correspond to do the same as for QCD:
which is done here:
http://bazaar.launchpad.net/~maddevelopers/mg5amcnlo/1.6.0/revision/239

Basically you need to extend the content of the file config_nqcd.inc
to have also the order associate to any other type of order.
Which can be done in the file export_v4.py (as show above)
and then you need to propagate this information to the writing of the events, like it is done above as well.

Cheers,

Olivier

On May 9, 2014, at 2:56 PM, Rafael Lopes de Sa <email address hidden> wrote:

> New question #248446 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/248446
>
> Hi,
>
> Is it possible to write the QED and NP order of an event the same way as it is possible to write the QCD order by turning on use_syst?
>
> I've been looking at madgraph/iolibs/export_v4.py, but apparently the NP order is not stored and the stored QED order seems to be the sum of the NP+QED. orders Is it the case? Is there a way to disentangle them?
>
> Thanks,
> Rafael.
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

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