problem with Pythia

Hi,

Are you sure that you are not looking at the root file corresponding to the output before the shower?
What are the various link that you see in the cross.html output file?
What are the various file in the Events/`RUN_NAME` directory?

Cheers,

Olivier

> On Jan 26, 2016, at 09:26, Olympia <email address hidden> wrote:
>
> New question #283649 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/283649
>
> Hello,
>
> I have a problem with pythia. After I generate an event ( generate p p > y > z z , z > mu+ mu- , z > d d~ y, d > j , d~ > j) (I have import a model for the graviton) a choose the option Pythia on, but when I look at the results(in the root file I have create from the results), I can't see on particle PID any pion in the final state(I mean, I have to the expect something like this in the final state after the hadronization) . Maybe the parton shower and the hadronization does not occur. But I don't understand why, I have already download the Pythia.
>
> Could you help me?
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Hi Olivier,

I am sure that I am looking at the root file after the shower.
In the cross.html file I have ( parton madevent -> LHE,plots
                                                   pythia -> LOG, STDHEP, LHE ,plots
                                                   pgs -> LOG, LHCO ,plots)

In the Event file I have the run_01file (which include; run_01_tag_1_banner.txt , tag_1_pgs.log , tag_1_pythia.log , tag_1_pgs_events.lhco.gz, tag_1_pythia_events.hep.gz, tag_1_pythia_events.lhe.gz, tag_1_pythia_syst.dat.gz ,unweighted_events.lhe.gz , unweighted_events.lhe, unweighted_events.root)

and

 beforeveto.tree , event.tree, fort.0 , hep2lhe.log , olympics.log, pgs_uncleaned_events.lhco , xsecs.tree , pythia_events.hep.

Olympia.

Hi Olivier,

I am sure that I am looking at the root file after the shower.
In the cross.html file I have ( parton madevent -> LHE,plots
                                                   pythia -> LOG, STDHEP, LHE ,plots
                                                   pgs -> LOG, LHCO ,plots)

In the Event file I have the run_01file (which include; run_01_tag_1_banner.txt , tag_1_pgs.log , tag_1_pythia.log , tag_1_pgs_events.lhco.gz, tag_1_pythia_events.hep.gz, tag_1_pythia_events.lhe.gz, tag_1_pythia_syst.dat.gz ,unweighted_events.lhe.gz , unweighted_events.lhe, unweighted_events.root)

and

 beforeveto.tree , event.tree, fort.0 , hep2lhe.log , olympics.log, pgs_uncleaned_events.lhco , xsecs.tree , pythia_events.hep.

Olympia.

Ok, so the file that contain that information should be:
> tag_1_pythia_events.hep.gz

This is the file that contains the shower output.
To check if it was running correctly, you can check the content of the
> tag_1_pythia.log

The only root file that you have here:
> unweighted_events.root

is the one before the shower.

Cheers,

Olivier

> On Jan 26, 2016, at 10:17, Olympia <email address hidden> wrote:
>
> Question #283649 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/283649
>
> Status: Solved => Open
>
> Olympia is still having a problem:
> Hi Olivier,
>
> I am sure that I am looking at the root file after the shower.
> In the cross.html file I have ( parton madevent -> LHE,plots
> pythia -> LOG, STDHEP, LHE ,plots
> pgs -> LOG, LHCO ,plots)
>
> In the Event file I have the run_01file (which include;
> run_01_tag_1_banner.txt , tag_1_pgs.log , tag_1_pythia.log ,
> tag_1_pgs_events.lhco.gz, tag_1_pythia_events.hep.gz,
> tag_1_pythia_events.lhe.gz, tag_1_pythia_syst.dat.gz
> ,unweighted_events.lhe.gz , unweighted_events.lhe,
> unweighted_events.root)
>
> and
>
> beforeveto.tree , event.tree, fort.0 , hep2lhe.log , olympics.log,
> pgs_uncleaned_events.lhco , xsecs.tree , pythia_events.hep.
>
> Olympia.
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

It's seems like running correctly!

So in order to have a root file after parton shower I have to convert the tag_1_pythia_events.hep into a root file?

Thanks, Olympia.

Yes that’s correct.

Cheers,

Olivier
> On Jan 26, 2016, at 11:26, Olympia <email address hidden> wrote:
>
> Question #283649 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/283649
>
> Olympia posted a new comment:
> It's seems like running correctly!
>
> So in order to have a root file after parton shower I have to convert
> the tag_1_pythia_events.hep into a root file?
>
> Thanks, Olympia.
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

That helps! Thanks a lot!

Olympia