MadGraph5_aMC@NLO

Some couplings have '1' order.

Asked by Ramin Barak

Dear MadGraph experts,

I have loaded a model I created with feynrules in MadGraph and am getting the following error:

Some couplings have '1' order.
                            This is not allowed in MG.
                            Please defines an additional coupling to your model

There was a similar question posed quite some time ago concerning a similar issue, but I don't quite get the proposed solution. I am supposed to include

InteractionOrder -> {NP, 1}

somewhere in my model, but I have no idea where I should put this and what I'm supposed to substitute for NP.

Could you please tell me how to solve this issue?

With kind regards,
Ramin

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

Hi,

Sorry my knowledge of FeynRules is likely even lower than yours.
So here is all the information that I know about it: https://answers.launchpad.net/mg5amcnlo/+faq/2460
For "NP". This stands for New Physics so you can technically keep that if that suits your model or put any name that you want.

Cheers,

Olivier

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