•Generation of coupling files

The amplitude is transformed to FeynArts notation:

mfa = FCToFA[melsimplified] ;

Terms are collected according to momenta:

mfacoll = Collect[mfa, FourVector[__] * ParticleMass[__]^2] ;

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

gencoup = GenericCoupling[mfacoll] ; gencoup

{p _ 2 _ μ _ 1 (m _ π^(ó  ))^2, p _ 2 _ μ _ 1 (m _ K^+^(ó  ))^2, p _ 2 _ μ _ 1 (m _ K^0^(ó  ))^2}

classcoup = ClassesCoupling[mfacoll] // Together ;

$VeryVerbose = 2 ;

CheckF[gencoup, XName[VertexFields -> {AxialVector[0][0], PhiMeson[0]}, PerturbationOrder -> 4, PhiModel -> ChPTW3, XFileName -> Automatic] <> ".Gen"] ;

Using file name D:\\Program Files\\Wolfram Research\\Mathematica\\4.1\\AddOns\\Applications\\HighEnergyPhysics\\Phi\\CouplingVectors\\ChPTW3A00P10o4.Gen

File does not exist, evaluating

Saving

CheckF[classcoup, XName[VertexFields -> {AxialVector[0][0], PhiMeson[0]}, PerturbationOrder -> 4, PhiModel -> ChPTW3, XFileName -> Automatic] <> ".Mod"] ;

Using file name D:\\Program Files\\Wolfram Research\\Mathematica\\4.1\\AddOns\\Applications\\HighEnergyPhysics\\Phi\\CouplingVectors\\ChPTW3A00P10o4.Mod

File does not exist, evaluating

Saving

$VeryVerbose = 0 ;

Converted by Mathematica  (July 10, 2003)