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Bertram Kopf authored5c1b6572
LSDecAmps.cc 10.47 KiB
//************************************************************************//
// //
// Copyright 2013 Bertram Kopf (bertram@ep1.rub.de) //
// Julian Pychy (julian@ep1.rub.de) //
// - Ruhr-Universität Bochum //
// //
// This file is part of Pawian. //
// //
// Pawian is free software: you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation, either version 3 of the License, or //
// (at your option) any later version. //
// //
// Pawian is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with Pawian. If not, see <http://www.gnu.org/licenses/>. //
// //
//************************************************************************//
// LSDecAmps class definition file. -*- C++ -*-
// Copyright 2012 Bertram Kopf
#include <getopt.h>
#include <fstream>
#include <string>
#include <mutex>
#include "PwaUtils/LSDecAmps.hh"
#include "qft++/relativistic-quantum-mechanics/Utils.hh"
#include "PwaUtils/DataUtils.hh"
#include "PwaUtils/GlobalEnv.hh"
#include "PwaUtils/IsobarLSDecay.hh"
#include "PwaDynamics/BarrierFactor.hh"
#include "Utils/FunctionUtils.hh"
#include "Particle/Particle.hh"
#include "ErrLogger/ErrLogger.hh"
LSDecAmps::LSDecAmps(std::shared_ptr<IsobarLSDecay> theDec, ChannelID channelID) :
AbsXdecAmp(theDec, channelID)
,_LSs(theDec->LSAmps())
,_factorMag(1.)
{
if(_LSs.size()>0) _factorMag=1./sqrt(_LSs.size());
Particle* daughter1=_decay->daughter1Part();
Particle* daughter2=_decay->daughter2Part();
_parityFactor=daughter1->theParity()*daughter2->theParity()*pow(-1,_JPCPtr->J-daughter1->J()-daughter2->J());
Info << "_parityFactor=\t" << _parityFactor << endmsg;
fillCgPreFactor();
}
LSDecAmps::LSDecAmps(std::shared_ptr<AbsDecay> theDec, ChannelID channelID) :
AbsXdecAmp(theDec, channelID)
{
Particle* daughter1=_decay->daughter1Part();
Particle* daughter2=_decay->daughter2Part();
_parityFactor=daughter1->theParity()*daughter2->theParity()*pow(-1,_JPCPtr->J-daughter1->J()-daughter2->J());
Info << "_parityFactor=\t" << _parityFactor << endmsg;
fillCgPreFactor();
}
LSDecAmps::~LSDecAmps()
{
}
complex<double> LSDecAmps::XdecPartAmp(Spin& lamX, Spin& lamDec, short fixDaughterNr, EvtData* theData, Spin& lamFs, AbsXdecAmp* grandmaAmp){
complex<double> result(0.,0.);
Spin lam1Min=-_Jdaughter1;
Spin lam1Max= _Jdaughter1;
Spin lam2Min=-_Jdaughter2;
Spin lam2Max=_Jdaughter2;
if(fixDaughterNr == 1){
lam1Min = lam1Max = lamDec;
}
else if(fixDaughterNr == 2){
lam2Min = lam2Max = lamDec;
}
else{
Alert << "Invalid fixDaughterNr in XdecPartAmp." << endmsg;
}
if(_enabledlamFsDaughter1){
lam1Min=lamFs;
lam1Max=lamFs;
}
else if(_enabledlamFsDaughter2){
lam2Min=lamFs;
lam2Max=lamFs;
}
result=lsLoop( grandmaAmp, lamX, theData, lam1Min, lam1Max, lam2Min, lam2Max, false);
return result;
}
complex<double> LSDecAmps::XdecAmp(Spin& lamX, EvtData* theData, Spin& lamFs, AbsXdecAmp* grandmaAmp){
// Info <<"\nlamX: " << lamX << "\tlamFs: " << lamFs << endmsg;
complex<double> result(0.,0.);
if( fabs(lamX) > _JPCPtr->J) return result;
int evtNo=theData->evtNo;
Id2StringType currentSpinIndex=FunctionUtils::spin2Index(lamX,lamFs);
// unsigned short currentSpinIndex=lamX.ToIndex()*100+lamFs.ToIndex();
if ( _cacheAmps && !_recalculate){
result=_cachedAmpShortMap.at(evtNo).at(currentSpinIndex);
// result=_cachedAmpMap.at(evtNo).at(lamX).at(lamFs);
// result*=_absDyn->eval(theData, grandmaAmp);
return result;
}
// Spin lam1Min=-_Jdaughter1;
Spin lam1Min=-_Jdaughter1;
Spin lam1Max= _Jdaughter1;
Spin lam2Min=-_Jdaughter2;
Spin lam2Max=_Jdaughter2;
if(_enabledlamFsDaughter1){
lam1Min=lamFs;
lam1Max=lamFs;
}
else if(_enabledlamFsDaughter2){
lam2Min=lamFs;
lam2Max=lamFs;
}
result=lsLoop(grandmaAmp, lamX, theData, lam1Min, lam1Max, lam2Min, lam2Max, true, lamFs);
if ( _cacheAmps){
theMutex.lock();
_cachedAmpShortMap[evtNo][currentSpinIndex]=result;
// _cachedAmpMap[evtNo][lamX][lamFs]=result;
theMutex.unlock();
}
// result*=_absDyn->eval(theData, grandmaAmp);
if(result.real()!=result.real()){
Info << "dyn name: " << _absDyn->name()
<< "\nname(): " << name()
<< endmsg;
Alert << "result:\t" << result << endmsg;
exit(0);
}
return result;
}
complex<double> LSDecAmps::lsLoop(AbsXdecAmp* grandmaAmp, Spin& lamX, EvtData* theData, Spin& lam1Min, Spin& lam1Max, Spin& lam2Min, Spin& lam2Max, bool withDecs, Spin lamFs ){
// Info << "\n_JPCPtr->J: " << _JPCPtr->J << "\tlamX: " << lamX << "\tlam1Min: " << lam1Min << "\tlam2Min: " << lam2Min << "\tlam1Max: " << lam1Max << "\tlam2Max: " << lam2Max << "\tlamFs: " <<lamFs << endmsg;
complex<double> result(0.,0.);
// map<Spin,complex<double> >& currentWignerDsMap=theData->WignerDsString.at(_wignerDKey).at(_JPCPtr->J).at(lamX);
// Spin currentJ=_JPCPtr->J;
std::map<Id3StringType, complex<double> >& currentWignerDMap=theData->WignerDStringId.at(_wignerDKey);
std::vector< std::shared_ptr<const LScomb> >::iterator it;
for (it=_LSs.begin(); it!=_LSs.end(); ++it){
map<Spin,map<Spin, double > >& currentCgFactor=_cgPreFactor.at(*it);
double theMag=_currentParamMags.at(*it);
double thePhi=_currentParamPhis.at(*it);
complex<double> expi(cos(thePhi), sin(thePhi));
complex<double> tmpResult(0.,0.);
for(Spin lambda1=lam1Min; lambda1<=lam1Max; ++lambda1){
for(Spin lambda2=lam2Min; lambda2<=lam2Max; ++lambda2){
Spin lambda = lambda1-lambda2;
if( fabs(lambda)>_JPCPtr->J || fabs(lambda)>(*it)->S) continue;
Id3StringType IdJLamXLam12=FunctionUtils::spin3Index(_J, lamX, lambda);
complex<double> amp = theMag*expi*currentCgFactor.at(lambda1).at(lambda2)*conj(currentWignerDMap.at(IdJLamXLam12));
// complex<double> amp = theMag*expi*currentCgFactor.at(lambda1).at(lambda2)*conj(currentWignerDsMap.at(lambda));
if(withDecs) amp *=daughterAmp(lambda1, lambda2, theData, lamFs);
tmpResult+=amp;
}
}
if(absDec()->useProdBarrier()){
tmpResult *= BarrierFactor::BlattWeisskopf((*it)->L, theData->DoubleString.at(_wignerDKey), BarrierFactor::qRDefault) /
BarrierFactor::BlattWeisskopf((*it)->L, theData->DoubleString.at(_wignerDKey + "qNorm"), BarrierFactor::qRDefault);
}
else tmpResult*=_absDyn->eval(theData, grandmaAmp);
result+=tmpResult;
}
result*=_preFactor*_isospinCG;
if(result.real()!=result.real()){
Alert << "result:\t" << result << endmsg;
exit(0);
}
return result;
}
void LSDecAmps::getDefaultParams(fitParams& fitVal, fitParams& fitErr){
std::map< std::shared_ptr<const LScomb>, double, pawian::Collection::SharedPtrLess > currentMagValMap;
std::map< std::shared_ptr<const LScomb>, double, pawian::Collection::SharedPtrLess > currentPhiValMap;
std::map< std::shared_ptr<const LScomb>, double, pawian::Collection::SharedPtrLess > currentMagErrMap;
std::map< std::shared_ptr<const LScomb>, double, pawian::Collection::SharedPtrLess > currentPhiErrMap;
std::vector< std::shared_ptr<const LScomb> >::const_iterator itLS;
for(itLS=_LSs.begin(); itLS!=_LSs.end(); ++itLS){
currentMagValMap[*itLS]=_factorMag;
currentPhiValMap[*itLS]=0.;
currentMagErrMap[*itLS]=_factorMag;
currentPhiErrMap[*itLS]=0.3;
}
fitVal.MagsLS[_key]=currentMagValMap;
fitVal.PhisLS[_key]=currentPhiValMap;
fitErr.MagsLS[_key]=currentMagErrMap;
fitErr.PhisLS[_key]=currentPhiErrMap;
_absDyn->getDefaultParams(fitVal, fitErr);
if(!_daughter1IsStable) _decAmpDaughter1->getDefaultParams(fitVal, fitErr);
if(!_daughter2IsStable) _decAmpDaughter2->getDefaultParams(fitVal, fitErr);
}
void LSDecAmps::print(std::ostream& os) const{
return; //dummy
}
bool LSDecAmps::checkRecalculation(fitParams& theParamVal){
_recalculate=false;
if(_absDyn->checkRecalculation(theParamVal)) _recalculate=true;
if(!_daughter1IsStable) {
if(_decAmpDaughter1->checkRecalculation(theParamVal)) _recalculate=true;
}
if(!_daughter2IsStable){
if(_decAmpDaughter2->checkRecalculation(theParamVal)) _recalculate=true;
}
if(!_recalculate){
std::map< std::shared_ptr<const LScomb>, double, pawian::Collection::SharedPtrLess >& magMap=theParamVal.MagsLS[_key];
std::map< std::shared_ptr<const LScomb>, double, pawian::Collection::SharedPtrLess >& phiMap=theParamVal.PhisLS[_key];
std::vector< std::shared_ptr<const LScomb> >::iterator it;
for (it=_LSs.begin(); it!=_LSs.end(); ++it){
double theMag=magMap[*it];
double thePhi=phiMap[*it];
if(!CheckDoubleEquality(theMag, _currentParamMags[*it])){
_recalculate=true;
return _recalculate;
}
if(!CheckDoubleEquality(thePhi, _currentParamPhis[*it])){
_recalculate=true;
return _recalculate;
}
}
}
return _recalculate;
}
void LSDecAmps::updateFitParams(fitParams& theParamVal){
std::map< std::shared_ptr<const LScomb>, double, pawian::Collection::SharedPtrLess >& magMap=theParamVal.MagsLS[_key]; std::map< std::shared_ptr<const LScomb>, double, pawian::Collection::SharedPtrLess >& phiMap=theParamVal.PhisLS[_key];
std::vector< std::shared_ptr<const LScomb> >::iterator it;
for (it=_LSs.begin(); it!=_LSs.end(); ++it){
double theMag=magMap[*it];
double thePhi=phiMap[*it];
_currentParamMags[*it]=theMag;
_currentParamPhis[*it]=thePhi;
}
_absDyn->updateFitParams(theParamVal);
if(!_daughter1IsStable) _decAmpDaughter1->updateFitParams(theParamVal);
if(!_daughter2IsStable) _decAmpDaughter2->updateFitParams(theParamVal);
}
void LSDecAmps::fillCgPreFactor(){
std::vector< std::shared_ptr<const LScomb> >::iterator it;
for (it=_LSs.begin(); it!=_LSs.end(); ++it){
for(Spin lambda1=-_Jdaughter1; lambda1<=_Jdaughter1; ++lambda1){
for(Spin lambda2=-_Jdaughter2; lambda2<=_Jdaughter2; ++lambda2){
Spin lambda = lambda1-lambda2;
if( fabs(lambda)>_JPCPtr->J || fabs(lambda)>(*it)->S) continue;
_cgPreFactor[*it][lambda1][lambda2]=sqrt(2.*(*it)->L+1)
*Clebsch((*it)->L, 0, (*it)->S, lambda, _JPCPtr->J, lambda)
*Clebsch(_Jdaughter1, lambda1, _Jdaughter2, -lambda2, (*it)->S, lambda );
}
}
}
}