•Generation of coupling files

Terms are collected according to momenta:

$ExpansionQuantities = Union[$ExpansionQuantities, {QuarkCondensate[___]}] ;

mfacoll = MomentaCollect[melsimplified, ParticlesNumber -> 4, PerturbationOrder -> 1]

-2 i !, _ 0^( ) δ _ (0 I _ 3)^(2) δ _ (I _ 1 I _ 2)^(2)

The coupling vectors are generated and saved:

gencoup = GenericCoupling[mfacoll] ; gencoup

{!, _ 0^( )}

classcoup = ClassesCoupling[mfacoll] // Together ; classcoup // StandardForm

{{-2 i SUNDelta[0, I3] SUNDelta[I1, I2]}}

$VeryVerbose = 2 ;

CheckF[gencoup, XName[VertexFields -> {Pion[0], Pion[0], Scalar[2][0]}, PerturbationOrder -> 2, PhiModel -> ChPT2, XFileName -> Automatic] <> ".Gen"] ;

Using file name D:\\Program Files\\Wolfram Research\\Mathematica\\4.1\\AddOns\\Applications\\HighEnergyPhysics\\Phi\\CouplingVectors\\ChPT2P20P20S20o2.Gen

File exists, loading

CheckF[classcoup, XName[VertexFields -> {Pion[0], Pion[0], Scalar[2][0]}, PerturbationOrder -> 2, PhiModel -> ChPT2, XFileName -> Automatic] <> ".Mod"] ;

Using file name D:\\Program Files\\Wolfram Research\\Mathematica\\4.1\\AddOns\\Applications\\HighEnergyPhysics\\Phi\\CouplingVectors\\ChPT2P20P20S20o2.Mod

File exists, loading

$VeryVerbose = 0 ;

Converted by Mathematica  (July 10, 2003)