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RFSVertex.cc
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// -*- C++ -*-
//
// RFSVertex.cc is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 2003-2011 Peter Richardson, Leif Lonnblad
//
// ThePEG is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
//
// This is the implementation of the non-inlined, non-templated member
// functions of the RFSVertex class.
//
#include "RFSVertex.h"
#include "ThePEG/Interface/ClassDocumentation.h"
#include "ThePEG/Persistency/PersistentOStream.h"
#include "ThePEG/Persistency/PersistentIStream.h"
using namespace ThePEG;
using namespace ThePEG::Helicity;
AbstractNoPIOClassDescription<RFSVertex> RFSVertex::initRFSVertex;
// Definition of the static class description member.
void RFSVertex::Init() {
static ClassDocumentation<RFSVertex> documentation
("The RFSVertex class is the implementation of the RFS"
"vertex. All such vertices shoud inherit from it");
}
Complex RFSVertex::evaluate(Energy2 q2,const RSSpinorWaveFunction & sp,
const SpinorBarWaveFunction & sbar,
const ScalarWaveFunction & sca) {
// calculate the couplings
setCoupling(q2,sp.particle(),sbar.particle(),sca.particle());
LorentzSpinor<double> wdot = sp.wave().dot(sbar.momentum());
Complex lS = wdot. leftScalar(sbar.wave());
Complex rS = wdot.rightScalar(sbar.wave());
swap(lS,rS);
return Complex(0.,1.)*norm()*sca.wave()*(lS*left()+rS*right());
}
Complex RFSVertex::evaluate(Energy2 q2,const SpinorWaveFunction & sp,
const RSSpinorBarWaveFunction & sbar,
const ScalarWaveFunction & sca) {
// calculate the couplings
setCoupling(q2,sbar.particle(),sp.particle(),sca.particle());
LorentzSpinorBar<double> wdot = sbar.wave().dot(sp.momentum());
Complex lS = sp.wave(). leftScalar(wdot);
Complex rS = sp.wave().rightScalar(wdot);
return Complex(0.,1.)*norm()*sca.wave()*(lS*left()+rS*right());
}
SpinorWaveFunction RFSVertex::evaluate(Energy2 ,int ,tcPDPtr ,
const RSSpinorWaveFunction & ,
const ScalarWaveFunction & ,
complex<Energy> , complex<Energy> ) {
assert(false);
return SpinorWaveFunction();
}
RSSpinorWaveFunction RFSVertex::evaluate(Energy2 ,int ,tcPDPtr ,
const SpinorWaveFunction & ,
const ScalarWaveFunction & ,
complex<Energy> , complex<Energy> ) {
assert(false);
return RSSpinorWaveFunction();
}
SpinorBarWaveFunction RFSVertex::evaluate(Energy2 ,int ,tcPDPtr ,
const RSSpinorBarWaveFunction & ,
const ScalarWaveFunction & ,
complex<Energy> , complex<Energy> ) {
assert(false);
return SpinorBarWaveFunction();
}
RSSpinorBarWaveFunction RFSVertex::evaluate(Energy2 ,int ,tcPDPtr ,
const SpinorBarWaveFunction & ,
const ScalarWaveFunction & ,
complex<Energy> , complex<Energy> ) {
assert(false);
return RSSpinorBarWaveFunction();
}
ScalarWaveFunction RFSVertex::evaluate(Energy2 ,int ,tcPDPtr ,
const RSSpinorWaveFunction & ,
const SpinorBarWaveFunction & ,
complex<Energy> , complex<Energy> ) {
assert(false);
return ScalarWaveFunction();
}
ScalarWaveFunction RFSVertex::evaluate(Energy2 ,int ,tcPDPtr ,
const SpinorWaveFunction & ,
const RSSpinorBarWaveFunction & ,
complex<Energy> , complex<Energy> ) {
assert(false);
return ScalarWaveFunction();
}

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