# FeynRules: Graph problem

Does anyone use the Feynrules Mathematica package? I'd like to know how could I write this vertex explicitly with sum on all indices

((MD- Me CKM11) /4 vev)  dbar.ProjM. d X


where X is scalar particle

So I'd like to write some thing like :

((Md IndexDelta[i,j] - Ml CKM[i,j])/4 vev)( SR dqbar[i].ProjM. dq[j] );


This expression give me errors on FeynRules. so what do you think the right for it?

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