MadGraph5_aMC@NLO

Unknown use of Identity for particle with color 1

Asked by roberto

Hello guys,

I have generated a UFO set of files in FeynRules adding leptoquarks SU(2)L doublet (triplet of color) in the SM. I do not know why, cause I have generated the UFO correctly, but when I am trying to import the model at MadGraph, I got the message:

Unknown use of Identity for particle with color 1.

Sorry for the question, but I am quite new at the use of the program.

Cheers,
Roberto.

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

Looks like that you have a color singlet object which has a color index according to some vertices.
This is obviously incoherent and madgraph fails to convert the UFO model to the internal MG format.

Cheers,

Olivier
> On Oct 23, 2015, at 18:42, roberto <email address hidden> wrote:
>
> New question #272854 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/272854
>
> Hello guys,
>
> I have generated a UFO set of files in FeynRules adding leptoquarks SU(2)L doublet (triplet of color) in the SM. I do not know why, cause I have generated the UFO correctly, but when I am trying to import the model at MadGraph, I got the message:
>
> Unknown use of Identity for particle with color 1.
>
> Sorry for the question, but I am quite new at the use of the program.
>
> Cheers,
> Roberto.
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

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