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SextetGVVVertex.cc
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SextetGVVVertex.cc
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// -*- C++ -*-
//
// This is the implementation of the non-inlined, non-templated member
// functions of the SextetGVVVertex class.
//
#include "SextetModel.h"
#include "SextetGVVVertex.h"
#include "SextetParticles.h"
#include "ThePEG/Interface/ClassDocumentation.h"
#include "ThePEG/EventRecord/Particle.h"
#include "ThePEG/Repository/UseRandom.h"
#include "ThePEG/Repository/EventGenerator.h"
#include "ThePEG/Utilities/DescribeClass.h"
using namespace Herwig;
IBPtr SextetGVVVertex::clone() const {
return new_ptr(*this);
}
IBPtr SextetGVVVertex::fullclone() const {
return new_ptr(*this);
}
// The following static variable is needed for the type
// description system in ThePEG.
DescribeNoPIOClass<SextetGVVVertex,Helicity::VVVVertex>
describeSextetGVVVertex("Herwig::SextetGVVVertex", "HwSextetModel.so");
void SextetGVVVertex::Init() {
static ClassDocumentation<SextetGVVVertex> documentation
("The SextetGVVVertex class implements the coupling of the gluon to two"
" vector sextet particles");
}
void SextetGVVVertex::doinit() {
orderInGs(1);
orderInGem(0);
SextetModelPtr model =
dynamic_ptr_cast<SextetModelPtr>(generator()->standardModel());
if(!model) throw Exception() << "Must be using the SextetModel"
<< " in SextetGVVVertex::doinit()"
<< Exception::runerror;
if(model->VectorDoubletY16Enabled()) {
addToList(21,ParticleID::VectorDQY16P,
ParticleID::VectorDQY16Pbar);
addToList(21,ParticleID::VectorDQY16M,
ParticleID::VectorDQY16Mbar);
}
if(model->VectorDoubletY56Enabled()) {
addToList(21,ParticleID::VectorDQY56P,
ParticleID::VectorDQY56Pbar);
addToList(21,ParticleID::VectorDQY56M,
ParticleID::VectorDQY56Mbar);
}
VVVVertex::doinit();
}
void SextetGVVVertex::setCoupling(Energy2 q2, tcPDPtr p1, tcPDPtr p2,
tcPDPtr p3) {
if(q2 != q2Last_ || coupLast_ == 0.) {
q2Last_ = q2;
coupLast_ = strongCoupling(q2);
}
if((p1->id()==ParticleID::g&&p2->id()>0&&p3->id()<0)||
(p2->id()==ParticleID::g&&p3->id()>0&&p1->id()<0)||
(p3->id()==ParticleID::g&&p1->id()>0&&p2->id()<0))
norm(-coupLast_);
else
norm( coupLast_);
}

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