•Generation of coupling files

The amplitude is transformed to FeynArts notation:

mfa = FCToFA[melsimplified] ;

Terms are collected according to momenta:

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

mfacoll = MomentaCollect[mfa, ParticlesNumber -> 2, PerturbationOrder -> 2] ;

The coupling vectors for the FeynArts model files are generated and saved:

gencoup = GenericCoupling[mfacoll] ; gencoup

{!, _ 0^( )}

classcoup = Simplify[ClassesCoupling[mfacoll]] ;

$VeryVerbose = 2 ;

CheckF[gencoup, XName[VertexFields -> {PhiMeson[0], PhiMeson[0], PhiMeson[0], Scalar[2][0]}, PerturbationOrder -> 2, PhiModel -> ChPTW3, XFileName -> Automatic] <> ".Gen"] ;

Using file name D:\\Program Files\\Wolfram Research\\Mathematica\\4.1\\AddOns\\Applications\\HighEnergyPhysics\\Phi\\CouplingVectors\\ChPTW3P10P10P10S20o2.Gen

File does not exist, evaluating

Saving

CheckF[classcoup, XName[VertexFields -> {PhiMeson[0], PhiMeson[0], PhiMeson[0], Scalar[2][0]}, PerturbationOrder -> 2, PhiModel -> ChPTW3, XFileName -> Automatic] <> ".Mod"] ;

Using file name D:\\Program Files\\Wolfram Research\\Mathematica\\4.1\\AddOns\\Applications\\HighEnergyPhysics\\Phi\\CouplingVectors\\ChPTW3P10P10P10S20o2.Mod

File does not exist, evaluating

Saving

$VeryVerbose = 0 ;

Converted by Mathematica  (July 10, 2003)