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diff --git a/Helicity/WaveFunction/RSSpinorWaveFunction.cc b/Helicity/WaveFunction/RSSpinorWaveFunction.cc
--- a/Helicity/WaveFunction/RSSpinorWaveFunction.cc
+++ b/Helicity/WaveFunction/RSSpinorWaveFunction.cc
@@ -1,250 +1,269 @@
// -*- C++ -*-
//
// RSSpinorWaveFunction.cc is a part of ThePEG - Toolkit for HEP Event Generation
// Copyright (C) 2003-2017 Peter Richardson, Leif Lonnblad
//
// ThePEG is licenced under version 3 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 RSSpinorWaveFunction class.
//
#include "RSSpinorWaveFunction.h"
#include "ThePEG/Helicity/HelicityFunctions.h"
using namespace ThePEG;
using namespace ThePEG::Helicity;
// calculate the Wavefunction
void RSSpinorWaveFunction::calculateWaveFunction(unsigned int ihel) {
// if rest frame, make sure speical case is used
Lorentz5Momentum ptemp=momentum();
double pr = ptemp.vect().mag2()/sqr(momentum().e());
if(pr<1e-20) {
ptemp.setX(ZERO);
ptemp.setY(ZERO);
ptemp.setZ(ZERO);
}
assert(direction()!=intermediate);
assert(ihel<=3);
// only two valid helicities in massless case
assert( mass()>ZERO || (ihel == 0 || ihel == 3 ) );
// new direct calculation
_wf = LorentzRSSpinor<double>(direction()==outgoing ? SpinorType::v : SpinorType::u);
// compute the spinors
std::array<LorentzSpinor<double>,2> spin;
if(ihel!=0) spin[0] = HelicityFunctions::spinor(ptemp,1,direction());
if(ihel!=3) spin[1] = HelicityFunctions::spinor(ptemp,0,direction());
// compute the polarization vectors to construct the RS spinor
std::array<LorentzPolarizationVector,3> eps;
if(ihel>=2)
eps[0] = HelicityFunctions::polarizationVector(ptemp,2,direction(),vector_phase);
else
eps[2] = HelicityFunctions::polarizationVector(ptemp,0,direction(),vector_phase);
if(mass()!=ZERO&&ihel!=0&&ihel!=3)
eps[1] = HelicityFunctions::polarizationVector(ptemp,1,direction());
// now we can put the bits together to compute the RS spinor
double or3(sqrt(1./3.)),tor3(sqrt(2./3.));
if(ihel==3) {
for(unsigned int iy=0;iy<4;++iy) {
_wf(0,iy) = eps[0].x()*spin[0][iy];
_wf(1,iy) = eps[0].y()*spin[0][iy];
_wf(2,iy) = eps[0].z()*spin[0][iy];
_wf(3,iy) = eps[0].t()*spin[0][iy];
}
}
else if(ihel==2) {
for(unsigned int iy=0;iy<4;++iy) {
_wf(0,iy) = or3*eps[0].x()*spin[1][iy]+tor3*eps[1].x()*spin[0][iy];
_wf(1,iy) = or3*eps[0].y()*spin[1][iy]+tor3*eps[1].y()*spin[0][iy];
_wf(2,iy) = or3*eps[0].z()*spin[1][iy]+tor3*eps[1].z()*spin[0][iy];
_wf(3,iy) = or3*eps[0].t()*spin[1][iy]+tor3*eps[1].t()*spin[0][iy];
}
}
else if(ihel==1) {
for(unsigned int iy=0;iy<4;++iy) {
_wf(0,iy) = or3*eps[2].x()*spin[0][iy]+tor3*eps[1].x()*spin[1][iy];
_wf(1,iy) = or3*eps[2].y()*spin[0][iy]+tor3*eps[1].y()*spin[1][iy];
_wf(2,iy) = or3*eps[2].z()*spin[0][iy]+tor3*eps[1].z()*spin[1][iy];
_wf(3,iy) = or3*eps[2].t()*spin[0][iy]+tor3*eps[1].t()*spin[1][iy];
}
}
else if(ihel==0) {
for(unsigned int iy=0;iy<4;++iy) {
_wf(0,iy) = eps[2].x()*spin[1][iy];
_wf(1,iy) = eps[2].y()*spin[1][iy];
_wf(2,iy) = eps[2].z()*spin[1][iy];
_wf(3,iy) = eps[2].t()*spin[1][iy];
}
}
+ // this makes the phase choice the same as madgraph, useful for debugging only
+ // Energy pt = ptemp.perp();
+ // double fact = direction()==incoming ? 1. : -1.;
+ // Complex emphi(fact*ptemp.x()/pt,-fact*ptemp.y()/pt);
+ // if(ihel==3) {
+ // for(unsigned int ix=0;ix<4;++ix)
+ // for(unsigned int iy=0;iy<4;++iy)
+ // _wf(ix,iy) /= emphi;
+ // }
+ // else if(ihel==1) {
+ // for(unsigned int ix=0;ix<4;++ix)
+ // for(unsigned int iy=0;iy<4;++iy)
+ // _wf(ix,iy) *= emphi;
+ // }
+ // else if(ihel==0) {
+ // for(unsigned int ix=0;ix<4;++ix)
+ // for(unsigned int iy=0;iy<4;++iy)
+ // _wf(ix,iy) *= sqr(emphi);
+ // }
}
void RSSpinorWaveFunction::
calculateWaveFunctions(vector<LorentzRSSpinor<SqrtEnergy> > & waves,
tPPtr particle,Direction dir) {
tRSFermionSpinPtr inspin = !particle->spinInfo() ? tRSFermionSpinPtr() :
dynamic_ptr_cast<tRSFermionSpinPtr>(particle->spinInfo());
waves.resize(4);
// spin info object exists
if(inspin) {
if(dir==outgoing) {
for(unsigned int ix=0;ix<4;++ix)
waves[ix] = inspin->getProductionBasisState(ix);
}
else {
inspin->decay();
for(unsigned int ix=0;ix<4;++ix)
waves[ix] = inspin->getDecayBasisState(ix);
}
}
// do the calculation
else {
assert(!particle->spinInfo());
RSSpinorWaveFunction wave(particle->momentum(),particle->dataPtr(),dir);
for(unsigned int ix=0;ix<4;++ix) {
wave.reset(ix);
waves[ix] = wave.dimensionedWf();
}
}
}
void RSSpinorWaveFunction::
calculateWaveFunctions(vector<RSSpinorWaveFunction> & waves,
tPPtr particle,Direction dir) {
tRSFermionSpinPtr inspin = !particle->spinInfo() ? tRSFermionSpinPtr() :
dynamic_ptr_cast<tRSFermionSpinPtr>(particle->spinInfo());
waves.resize(4);
// spin info object exists
if(inspin) {
if(dir==outgoing) {
for(unsigned int ix=0;ix<4;++ix)
waves[ix] = RSSpinorWaveFunction(particle,
inspin->getProductionBasisState(ix),dir);
}
else {
inspin->decay();
for(unsigned int ix=0;ix<4;++ix)
waves[ix] = RSSpinorWaveFunction(particle,
inspin->getDecayBasisState(ix),dir);
}
}
// do the calculation
else {
assert(!particle->spinInfo());
RSSpinorWaveFunction wave(particle->momentum(),particle->dataPtr(),dir);
for(unsigned int ix=0;ix<4;++ix) {
wave.reset(ix);
waves[ix] = wave;
}
}
}
void RSSpinorWaveFunction::
calculateWaveFunctions(vector<LorentzRSSpinor<SqrtEnergy> > & waves,
RhoDMatrix & rho,
tPPtr particle,Direction dir) {
tRSFermionSpinPtr inspin = !particle->spinInfo() ? tRSFermionSpinPtr() :
dynamic_ptr_cast<tRSFermionSpinPtr>(particle->spinInfo());
waves.resize(4);
// spin info object exists
if(inspin) {
if(dir==outgoing) {
for(unsigned int ix=0;ix<4;++ix)
waves[ix] = inspin->getProductionBasisState(ix);
rho = RhoDMatrix(PDT::Spin3Half);
}
else {
inspin->decay();
for(unsigned int ix=0;ix<4;++ix)
waves[ix] = inspin->getDecayBasisState(ix);
rho = inspin->rhoMatrix();
}
}
// do the calculation
else {
assert(!particle->spinInfo());
RSSpinorWaveFunction wave(particle->momentum(),particle->dataPtr(),dir);
for(unsigned int ix=0;ix<4;++ix) {
wave.reset(ix);
waves[ix] = wave.dimensionedWf();
}
rho = RhoDMatrix(PDT::Spin3Half);
}
}
void RSSpinorWaveFunction::
calculateWaveFunctions(vector<RSSpinorWaveFunction> & waves,
RhoDMatrix & rho,
tPPtr particle,Direction dir) {
tRSFermionSpinPtr inspin = !particle->spinInfo() ? tRSFermionSpinPtr() :
dynamic_ptr_cast<tRSFermionSpinPtr>(particle->spinInfo());
waves.resize(4);
// spin info object exists
if(inspin) {
if(dir==outgoing) {
for(unsigned int ix=0;ix<4;++ix)
waves[ix] = RSSpinorWaveFunction(particle,
inspin->getProductionBasisState(ix),dir);
rho = RhoDMatrix(PDT::Spin3Half);
}
else {
inspin->decay();
for(unsigned int ix=0;ix<4;++ix)
waves[ix] = RSSpinorWaveFunction(particle,
inspin->getDecayBasisState(ix),dir);
rho = inspin->rhoMatrix();
}
}
// do the calculation
else {
assert(!particle->spinInfo());
RSSpinorWaveFunction wave(particle->momentum(),particle->dataPtr(),dir);
for(unsigned int ix=0;ix<4;++ix) {
wave.reset(ix);
waves[ix] = wave;
}
rho = RhoDMatrix(PDT::Spin3Half);
}
}
void RSSpinorWaveFunction::
constructSpinInfo(const vector<LorentzRSSpinor<SqrtEnergy> > & waves,
tPPtr particle,Direction dir,bool time) {
assert(waves.size()==4);
tRSFermionSpinPtr inspin = !particle->spinInfo() ? tRSFermionSpinPtr() :
dynamic_ptr_cast<tRSFermionSpinPtr>(particle->spinInfo());
if(inspin) {
for(unsigned int ix=0;ix<4;++ix)
if(dir==outgoing) inspin->setBasisState(ix,waves[ix]);
else inspin->setDecayState(ix,waves[ix]);
}
else {
RSFermionSpinPtr temp = new_ptr(RSFermionSpinInfo(particle->momentum(),time));
particle->spinInfo(temp);
for(unsigned int ix=0;ix<4;++ix)
if(dir==outgoing) temp->setBasisState(ix,waves[ix]);
else temp->setDecayState(ix,waves[ix]);
}
}
void RSSpinorWaveFunction::
constructSpinInfo(const vector<RSSpinorWaveFunction> & waves,
tPPtr particle,Direction dir,bool time) {
assert(waves.size()==4);
tRSFermionSpinPtr inspin = !particle->spinInfo() ? tRSFermionSpinPtr() :
dynamic_ptr_cast<tRSFermionSpinPtr>(particle->spinInfo());
if(inspin) {
for(unsigned int ix=0;ix<4;++ix)
if(dir==outgoing) inspin->setBasisState(ix,waves[ix].dimensionedWf());
else inspin->setDecayState(ix,waves[ix].dimensionedWf());
}
else {
RSFermionSpinPtr temp = new_ptr(RSFermionSpinInfo(particle->momentum(),time));
particle->spinInfo(temp);
for(unsigned int ix=0;ix<4;++ix)
if(dir==outgoing) temp->setBasisState(ix,waves[ix].dimensionedWf());
else temp->setDecayState(ix,waves[ix].dimensionedWf());
}
}

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