#pdf line in the LHE output format

Asked by Sanghyun Ko on 2018-06-26

Dear. Madgraph authors,

Hi, I have a short question on the format of Madgraph output LHE files. As far as I know, there is an optional line in the LHE format starting with #pdf, which contains the ID of partons, Bjorken x, scale and PDF values (https://arxiv.org/abs/hep-ph/0609017).

e.g. #pdf id1 id2 x1 x2 scalePDF xpdf1 xpdf2

Is there any option or configuration in Madgraph to turn on the #pdf line in the output LHE files?

Thanks,

Sanghyun.

Question information

Language:
English Edit question
Status:
Solved
For:
MadGraph5_aMC@NLO Edit question
Assignee:
No assignee Edit question
Solved by:
Olivier Mattelaer
Solved:
2018-08-02
Last query:
2018-08-02
Last reply:
2018-06-26

no,

But if you set use_syst=T (for LO, equivalent syntax does also exists for NLO).
then that information is written but in a different format (which cover more complex case like MLM)

Cheers,

Olivier

> On 26 Jun 2018, at 05:32, Sanghyun Ko <email address hidden> wrote:
>
> New question #670462 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/670462
>
> Dear. Madgraph authors,
>
>
> Hi, I have a short question on the format of Madgraph output LHE files. As far as I know, there is an optional line in the LHE format starting with #pdf, which contains the ID of partons, Bjorken x, scale and PDF values (https://arxiv.org/abs/hep-ph/0609017).
>
> e.g. #pdf id1 id2 x1 x2 scalePDF xpdf1 xpdf2
>
> Is there any option or configuration in Madgraph to turn on the #pdf line in the output LHE files?
>
>
> Thanks,
>
> Sanghyun.
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Sanghyun Ko (sang.hyun.ko) said : #2

Thanks Olivier Mattelaer, that solved my question.