MadGraph5_aMC@NLO

PDF Set for Pythia-pgs

Asked by SUBHASISH BEHERA

 Dear Olivier,
           Is it wrong to add PDFSet of our choice for Pythia-pgs installed in the MG5 ?

I did the following changes in the Pythia card :

!...PDFset if MG set not supported by pythia-pgs package (set in lhapdf5 or higher)
      LHAID= 260000

      LHAPATH=/home/shibananda/RESEARCH/PACKAGES_USE/LHAPDF616/share/LHAPDF

P.S. : This the path for the PDFSet installed in the system.

P.S. : I also use MadSpin on state.

But during run it writes the Pythia_card.dat as the following :

!...Parton showering on or off
      MSTP(61)=1
      MSTP(71)=1

!...Fragmentation/hadronization on or off
      MSTJ(1)=1

!...Multiple interactions on or off
      MSTP(81)=20

!...Don't stop execution after 10 errors
      MSTU(21)=1

!...PDFset if MG set not supported by pythia-pgs package (set in lhapdf5 or higher)
      LHAID= 260000

      LHAPATH=/home/shibananda/RESEARCH/PACKAGES_USE/LHAPDF616/share/LHAPDF

      LHAPATH=/home/shibananda/RESEARCH/EVENT_GENERATORS/MG5_aMC_v2_3_3/pythia-pgs/src/PDFsets

      LHAPATH=/home/shibananda/RESEARCH/EVENT_GENERATORS/MG5_aMC_v2_3_3/pythia-pgs/src/PDFsets

Thanks,

Subhasish

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Solved by:
Olivier Mattelaer
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SUBHASISH BEHERA (subhparasara) said : 		#1

I also follow this :
https://answers.launchpad.net/mg5amcnlo/+question/253527

But hot to force pythia-pgs to take the external PDFSet ?

Revision history for this message
Best Olivier Mattelaer (olivier-mattelaer) said : 		#2

Hi,

I do not know.
Neither pythia6 or pgs are currently supported anymore.
We are also on the move to fully drop pythia6 and therefore this pythia-pgs package.
So this is clearly not the time where I will invest time to check how more recent version of lhapdf can be interfaced.

Cheers,

Olivier

> On May 10, 2016, at 11:42, SUBHASISH BEHERA <email address hidden> wrote:
>
> Question #293535 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/293535
>
> SUBHASISH BEHERA gave more information on the question:
> I also follow this :
> https://answers.launchpad.net/mg5amcnlo/+question/253527
>
> But hot to force pythia-pgs to take the external PDFSet ?
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Revision history for this message
SUBHASISH BEHERA (subhparasara) said : 		#3

Thanks Olivier Mattelaer, that solved my question.