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// IsobarDecay class definition file. -*- C++ -*-
// Copyright 2012 Bertram Kopf
#include <getopt.h>
#include <fstream>
#include <algorithm>
#include "PwaUtils/IsobarDecay.hh"
#include "PwaUtils/IsobarDecayList.hh"
#include "pbarpUtils/pbarpEnv.hh"
#include "qft++/relativistic-quantum-mechanics/Utils.hh"
#include "ErrLogger/ErrLogger.hh"
#include "Particle/Particle.hh"
#include "Utils/PawianCollectionUtils.hh"
#include "Utils/FunctionUtils.hh"
#include "PwaUtils/KinUtils.hh"
#include "PwaUtils/EvtDataBaseList.hh"
IsobarDecay::IsobarDecay(Particle* mother, Particle* daughter1, Particle* daughter2) :
_mother(mother)
,_daughter1(daughter1)
,_daughter2(daughter2)
,_daughter1IsStable(true)
,_daughter2IsStable(true)
,_hasMotherPart(true)
,_withDyn(false)
,_motherJPCPtr(getJPCPtr(mother))
,_daughter1JPCPtr(getJPCPtr(daughter1))
,_daughter2JPCPtr(getJPCPtr(daughter2))
,_name(mother->name()+"To"+daughter1->name()+"_"+daughter2->name())
,_fitParamSuffix(_name)
,_massParamKey(mother->name())
{
validJPCLS( _motherJPCPtr, _daughter1JPCPtr, _daughter2JPCPtr, _JPCLSDecAmps);
_isoDecDaughter1=pbarpEnv::instance()->decayList()->decay(_daughter1);
if(0 != _isoDecDaughter1){
_daughter1IsStable=false;
std::vector<Particle*> fsParticlesDaughter1=_isoDecDaughter1->finalStateParticles();
_finalStateParticles.insert(_finalStateParticles.end(), fsParticlesDaughter1.begin(), fsParticlesDaughter1.end());
}
else _finalStateParticles.push_back(daughter1);
_isoDecDaughter2=pbarpEnv::instance()->decayList()->decay(_daughter2);
if(0 != _isoDecDaughter2){
_daughter2IsStable=false;
_finalStateParticlesDaughter2=_isoDecDaughter2->finalStateParticles();
_finalStateParticles.insert(_finalStateParticles.end(), _finalStateParticlesDaughter2.begin(), _finalStateParticlesDaughter2.end());
}
else{
_finalStateParticles.push_back(daughter2);
_finalStateParticlesDaughter2.push_back(daughter2);
}
pawian::Collection::PtrLess thePtrLess;
std::sort(_finalStateParticles.begin(), _finalStateParticles.end(), thePtrLess);
_wignerDKey=FunctionUtils::particleListName(_finalStateParticlesDaughter2)+"_"+_motherJPCPtr->name()+FunctionUtils::particleListName(_finalStateParticles);
}
IsobarDecay::IsobarDecay(boost::shared_ptr<const jpcRes> motherJPCPtr, Particle* daughter1, Particle* daughter2, std::string motherName) :
_mother(0)
,_daughter1(daughter1)
,_daughter2(daughter2)
,_daughter1IsStable(true)
,_daughter2IsStable(true)
,_hasMotherPart(false)
,_withDyn(false)
,_motherJPCPtr(motherJPCPtr)
,_daughter1JPCPtr(getJPCPtr(daughter1))
,_daughter2JPCPtr(getJPCPtr(daughter2))
,_name(motherName+"To"+daughter1->name()+"_"+daughter2->name())
,_fitParamSuffix(_name)
,_massParamKey("")
{
validJPCLS( _motherJPCPtr, _daughter1JPCPtr, _daughter2JPCPtr, _JPCLSDecAmps);
_isoDecDaughter1=pbarpEnv::instance()->decayList()->decay(_daughter1);
if(0 != _isoDecDaughter1){
_daughter1IsStable=false;
std::vector<Particle*> fsParticlesDaughter1=_isoDecDaughter1->finalStateParticles();
_finalStateParticles.insert(_finalStateParticles.end(), fsParticlesDaughter1.begin(), fsParticlesDaughter1.end());
}
else _finalStateParticles.push_back(daughter1);
_isoDecDaughter2=pbarpEnv::instance()->decayList()->decay(_daughter2);
if(0 != _isoDecDaughter2){
_daughter2IsStable=false;
_finalStateParticlesDaughter2=_isoDecDaughter2->finalStateParticles();
_finalStateParticles.insert(_finalStateParticles.end(), _finalStateParticlesDaughter2.begin(), _finalStateParticlesDaughter2.end());
}
else{
_finalStateParticles.push_back(daughter2);
_finalStateParticlesDaughter2.push_back(daughter2);
}
pawian::Collection::PtrLess thePtrLess;
std::sort(_finalStateParticles.begin(), _finalStateParticles.end(), thePtrLess);
_wignerDKey=FunctionUtils::particleListName(_finalStateParticlesDaughter2)+"_"+motherName;
}
IsobarDecay::~IsobarDecay(){
}
void IsobarDecay::fillWignerDs(std::map<std::string, Vector4<double> >& fsMap, EvtData* evtData){
if (!_daughter1IsStable) _isoDecDaughter1->fillWignerDs(fsMap, evtData);
if (!_daughter2IsStable) _isoDecDaughter2->fillWignerDs(fsMap, evtData);
Vector4<double> all4Vec(0.,0.,0.,0.);
Vector4<double> mother4Vec(0.,0.,0.,0.);
Vector4<double> daughter2_4Vec(0.,0.,0.,0.);
//fill all4Vec
std::map<std::string, Vector4<double>, pawian::Collection::PtrLess>::iterator itMap;
for(itMap=fsMap.begin(); itMap!=fsMap.end(); ++itMap){
all4Vec+=itMap->second;
}
//fill mother4Vec
std::vector<Particle*>::iterator itP;
for(itP = _finalStateParticles.begin(); itP != _finalStateParticles.end(); ++itP){
itMap=fsMap.find((*itP)->name());
mother4Vec+=itMap->second;
}
//fill mother4Vec
for(itP=_finalStateParticlesDaughter2.begin(); itP!=_finalStateParticlesDaughter2.end(); ++itP){
itMap=fsMap.find((*itP)->name());
daughter2_4Vec+=itMap->second;
}
Vector4<double> daughter2HelMother(0.,0.,0.,0.);
if(_hasMotherPart){
daughter2HelMother=helicityVec(all4Vec, mother4Vec, daughter2_4Vec);
}
else{
daughter2HelMother=daughter2_4Vec;
daughter2HelMother.Boost(mother4Vec);
}
Spin spinMother=_motherJPCPtr->J;
Spin spinDaughter1=_daughter1JPCPtr->J;
Spin spinDaughter2=_daughter2JPCPtr->J;
Spin lam12Max=spinDaughter1+spinDaughter2;
if(lam12Max>spinMother) lam12Max=spinMother;
Spin lamMotherMax=spinMother;
if (!_hasMotherPart && spinMother>1) lamMotherMax=1;
for (Spin lamMother=-lamMotherMax; lamMother<=lamMotherMax; ++lamMother){
for (Spin lam12=-lam12Max; lam12<=lam12Max; ++lam12){
double thePhi=0.;
if(_hasMotherPart) thePhi=daughter2HelMother.Phi();
evtData->WignerDsString[_wignerDKey][spinMother][lamMother][lam12]=Wigner_D(thePhi,daughter2HelMother.Theta(),0,spinMother,lamMother,lam12);
}
}
}
void IsobarDecay::print(std::ostream& os) const{
os << "\nJPCLS amplitudes for decay\t" << _name << ":\n";
os << "suffix for fit parameter name:\t" << _fitParamSuffix << "\n";
std::vector< boost::shared_ptr<const JPCLS> >::const_iterator it;
for (it = _JPCLSDecAmps.begin(); it!= _JPCLSDecAmps.end(); ++it){
(*it)->print(os);
os << "\n";
}
if(!_daughter1IsStable){
os << "with further decay:";
_isoDecDaughter1->print(os);
}
if(!_daughter2IsStable){
os << "with further decay:";
_isoDecDaughter2->print(os);
}
os << "\n";
}