KeyError : QED error in NLO calculation

Syntax specifiction in 3.0.3 are confusing since they do not match 2.x syntax for what you try to do.
This was a huge feedback of the beta release (this is one of the good point to still be in beta for that version) and will change the syntax in 3.0.4 to have a more consistent syntax.
For the moment you can use this branch: lp:~maddevelopers/mg5amcnlo/3.0.3-neworders
which implements such new syntax.

Cheers,

Olivier

Dear Olivier

Thanks a lot for the quick response. It seems like it solved the previous problem with QED but now I can't get any loop diagrams without SM (Z/W/a) contribution. So what I want is p p > j j where only contribution is coming from Z' + loop order corrections which I was achieving in v2.X via setting QCD=0. Now I tried

generate p p > j j / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0 [QCD]

but I get the following

Command "generate p p > j j / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0 [QCD]" interrupted with error:
FKSProcessError : This process does not have any correction up to NLO in QCD

when I set NP=2 QCD=2 NP^2<=2 QED=0 [QCD] it works but I get some diagrams without Z' which is expected. Is there a way to enforce to have Z' in the diagram and only have QCD loop corrections without any NP corrections?

Thanks
Best regards
Jack

Hi Jack,
can you try
generate p p > j j / wp+ wp- NP=2 QCD^2=0 NP^2<=2 QED=0 [QCD]
?
(note QCD=0 -> QCD^2=0)

Let me know...
Where can I get the model, to try a bit myself?

Thanks,

Marcpo

Hi Marco;

Please see the link (https://drive.google.com/file/d/1F6YODjGTX_QpdyA8RI0BmjuL-M0r5rM_/view?usp=sharing <https://drive.google.com/file/d/1F6YODjGTX_QpdyA8RI0BmjuL-M0r5rM_/view?usp=sharing>) for the UFO file.

> can you try
> generate p p > j j / wp+ wp- NP=2 QCD^2=0 NP^2<=2 QED=0 [QCD]
> ?
> (note QCD=0 -> QCD^2=0)

I get the following;

Command "generate p p > j j / wp+ wp- NP=2 QCD^2=0 NP^2<=2 QED=0 [QCD]" interrupted with error:
FKSProcessError : This process does not have any correction up to NLO in QCD

Thanks
Best regards

—
Jack Y. Araz

> On Sep 14, 2020, at 2:50 PM, marco zaro <email address hidden> wrote:
>
> Your question #692901 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/692901
>
> Status: Open => Answered
>
> marco zaro proposed the following answer:
> Hi Jack,
> can you try
> generate p p > j j / wp+ wp- NP=2 QCD^2=0 NP^2<=2 QED=0 [QCD]
> ?
> (note QCD=0 -> QCD^2=0)
>
> Let me know...
> Where can I get the model, to try a bit myself?
>
> Thanks,
>
> Marcpo
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/mg5amcnlo/+question/692901/+confirm?answer_id=2
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/mg5amcnlo/+question/692901
>
> You received this question notification because you asked the question.

Hi,
are you sure the model is correct?
If I generate a LO process with your syntax I also get errors:
MG5_aMC>generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0
Interpreting 'NP=2' as 'NP<=2'
Command "generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0 " interrupted in sub-command:
"generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0" with error:
NoDiagramException : No amplitudes generated from process Process: u u~ > d d~ / wp+ wp+ NP=2 QCD=0 QED=0 NP^2<=2 @1. Please enter a valid process
Please report this bug on https://bugs.launchpad.net/mg5amcnlo
More information is found in 'MG5_debug'.
Please attach this file to your report.

Marco

sorry, It should be NP^2 <= 4, not 2, right?
Cheers,
Marco

> On 14 Sep 2020, at 16:10, marco zaro <email address hidden> wrote:
>
> Question #692901 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/692901
>
> Status: Open => Needs information
>
> marco zaro requested more information:
> Hi,
> are you sure the model is correct?
> If I generate a LO process with your syntax I also get errors:
> MG5_aMC>generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0
> Interpreting 'NP=2' as 'NP<=2'
> Command "generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0 " interrupted in sub-command:
> "generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0" with error:
> NoDiagramException : No amplitudes generated from process Process: u u~ > d d~ / wp+ wp+ NP=2 QCD=0 QED=0 NP^2<=2 @1. Please enter a valid process
> Please report this bug on https://bugs.launchpad.net/mg5amcnlo
> More information is found in 'MG5_debug'.
> Please attach this file to your report.
>
> Marco
>
> --
> You received this question notification because you are assigned to this
> question.

Hi Marco

When I set 'generate p p > j j NP=2 QCD=0 QED=0’ I can see all the NP diagrams at LO in both versions so I believe there is no problem at LO, please let me know if im wrong. So yes I believe NP^2 should be <=4, which gives me same diagrams as the command above. In the meantime I’m checking the model, couldn’t find a problem so far.

Thanks
Best regards

—
Jack Y. Araz

> On Sep 14, 2020, at 3:15 PM, marco zaro <email address hidden> wrote:
>
> Your question #692901 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/692901
>
> Status: Needs information => Answered
>
> marco zaro proposed the following answer:
> sorry, It should be NP^2 <= 4, not 2, right?
> Cheers,
> Marco
>
>> On 14 Sep 2020, at 16:10, marco zaro <email address hidden> wrote:
>>
>> Question #692901 on MadGraph5_aMC@NLO changed:
>> https://answers.launchpad.net/mg5amcnlo/+question/692901
>>
>> Status: Open => Needs information
>>
>> marco zaro requested more information:
>> Hi,
>> are you sure the model is correct?
>> If I generate a LO process with your syntax I also get errors:
>> MG5_aMC>generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0
>> Interpreting 'NP=2' as 'NP<=2'
>> Command "generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0 " interrupted in sub-command:
>> "generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0" with error:
>> NoDiagramException : No amplitudes generated from process Process: u u~ > d d~ / wp+ wp+ NP=2 QCD=0 QED=0 NP^2<=2 @1. Please enter a valid process
>> Please report this bug on https://bugs.launchpad.net/mg5amcnlo
>> More information is found in 'MG5_debug'.
>> Please attach this file to your report.
>>
>> Marco
>>
>> --
>> You received this question notification because you are assigned to this
>> question.
>
> --
> If this answers your question, please go to the following page to let us
> know that it is solved:
> https://answers.launchpad.net/mg5amcnlo/+question/692901/+confirm?answer_id=5
>
> If you still need help, you can reply to this email or go to the
> following page to enter your feedback:
> https://answers.launchpad.net/mg5amcnlo/+question/692901
>
> You received this question notification because you asked the question.

Hi Jack,
since the diagram you want contains 2 NP vertices, then you have to specify NP^2=4 (or not specify squared orders at all).

Cheers,

Marco

> On 14 Sep 2020, at 18:00, Jack Y. Araz <email address hidden> wrote:
>
> Question #692901 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/692901
>
> Status: Answered => Open
>
> Jack Y. Araz is still having a problem:
> Hi Marco
>
> When I set 'generate p p > j j NP=2 QCD=0 QED=0’ I can see all the NP
> diagrams at LO in both versions so I believe there is no problem at LO,
> please let me know if im wrong. So yes I believe NP^2 should be <=4,
> which gives me same diagrams as the command above. In the meantime I’m
> checking the model, couldn’t find a problem so far.
>
> Thanks
> Best regards
>
> —
> Jack Y. Araz
>
>> On Sep 14, 2020, at 3:15 PM, marco zaro <email address hidden> wrote:
>>
>> Your question #692901 on MadGraph5_aMC@NLO changed:
>> https://answers.launchpad.net/mg5amcnlo/+question/692901
>>
>> Status: Needs information => Answered
>>
>> marco zaro proposed the following answer:
>> sorry, It should be NP^2 <= 4, not 2, right?
>> Cheers,
>> Marco
>>
>>> On 14 Sep 2020, at 16:10, marco zaro <email address hidden> wrote:
>>>
>>> Question #692901 on MadGraph5_aMC@NLO changed:
>>> https://answers.launchpad.net/mg5amcnlo/+question/692901
>>>
>>> Status: Open => Needs information
>>>
>>> marco zaro requested more information:
>>> Hi,
>>> are you sure the model is correct?
>>> If I generate a LO process with your syntax I also get errors:
>>> MG5_aMC>generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0
>>> Interpreting 'NP=2' as 'NP<=2'
>>> Command "generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0 " interrupted in sub-command:
>>> "generate u u~ > d d~ / wp+ wp- NP=2 QCD=0 NP^2<=2 QED=0" with error:
>>> NoDiagramException : No amplitudes generated from process Process: u u~ > d d~ / wp+ wp+ NP=2 QCD=0 QED=0 NP^2<=2 @1. Please enter a valid process
>>> Please report this bug on https://bugs.launchpad.net/mg5amcnlo
>>> More information is found in 'MG5_debug'.
>>> Please attach this file to your report.
>>>
>>> Marco
>>>
>>> --
>>> You received this question notification because you are assigned to this
>>> question.
>>
>> --
>> If this answers your question, please go to the following page to let us
>> know that it is solved:
>> https://answers.launchpad.net/mg5amcnlo/+question/692901/+confirm?answer_id=5
>>
>> If you still need help, you can reply to this email or go to the
>> following page to enter your feedback:
>> https://answers.launchpad.net/mg5amcnlo/+question/692901
>>
>> You received this question notification because you asked the question.
>
> --
> You received this question notification because you are assigned to this
> question.