MadGraph5_aMC@NLO

UFO error: occurence of CT parameters in couplings

Asked by Disha Bhatia

Hi,

I was trying to load UFO in the madgraph shell.
However I encountered with this error: UFOError, "UFO does not support yet more than one occurence of CTParameters in the couplings values." I have tried this in MG5_aMC_v2_7_3_py3 and also the most latest version of madgraph.
Can you please tell me how to correct this.

Thanks,
Disha

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

Hi,

I do see that this error is generated by the model itself not by MG5aMC.
So this is an internal check that your model is consistent (and looks like it is not).

So your UFO model should not work with any code. So the first question is.
Did your model work with another code?
How did you write such UFO model? If you are using a tool to generate such model, you might need to look at the associated manual if they have comment about this since it means that the generated code is bugged. If you did it by hand, then you should be in control to fix that.

Cheers,

Olivier

> On 23 Sep 2021, at 06:35, Disha Bhatia <email address hidden> wrote:
>
> UFO does not support yet more than one occurence of CTParameters in the couplings values

Can you help with this problem?

Provide an answer of your own, or ask Disha Bhatia for more information if necessary.

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