//************************************************************************//
// //
// 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/>. //
// //
//************************************************************************//
// TensorDecAmps class definition file. -*- C++ -*-
// Copyright 2012 Bertram Kopf
#include <getopt.h>
#include <fstream>
#include <string>
#include <mutex>
#include "PwaUtils/TensorDecAmps.hh"
#include "qft++/relativistic-quantum-mechanics/Utils.hh"
#include "PwaUtils/DataUtils.hh"
#include "PwaUtils/IsobarTensorDecay.hh"
#include "Particle/Particle.hh"
#include "ErrLogger/ErrLogger.hh"
TensorDecAmps::TensorDecAmps(std::shared_ptr<IsobarTensorDecay> theDec, ChannelID channelID) :
AbsXdecAmp(theDec, channelID)
,_LSs(theDec->LSAmps())
,_factorMag(1.)
{
if(_LSs.size()>0) _factorMag=1./sqrt(_LSs.size());
}
TensorDecAmps::TensorDecAmps(std::shared_ptr<AbsDecay> theDec, ChannelID channelID) :
AbsXdecAmp(theDec, channelID)
{
if(_LSs.size()>0) _factorMag=1./sqrt(_LSs.size());
}
TensorDecAmps::~TensorDecAmps()
{
}
complex<double> TensorDecAmps::XdecPartAmp(Spin& lamX, Spin& lamDec, short fixDaughterNr, EvtData* theData, Spin& lamFs, AbsXdecAmp* grandmaAmp){
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;
}
complex<double> result=lsLoop(lamX, theData, lam1Min, lam1Max, lam2Min, lam2Max, false);
return result;
}
complex<double> TensorDecAmps::XdecAmp(Spin& lamX, EvtData* theData, Spin& lamFs, AbsXdecAmp* grandmaAmp){
complex<double> result(0.,0.);
// if( fabs(lamX) > _JPCPtr->J) return result;
int evtNo=theData->evtNo;
if ( _cacheAmps && !_recalculate){
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(lamX, theData, lam1Min, lam1Max, lam2Min, lam2Max, true, lamFs );
if ( _cacheAmps){
theMutex.lock();
_cachedAmpMap[evtNo][lamX][lamFs]=result;
theMutex.unlock();
}
result*=_absDyn->eval(theData, grandmaAmp);
return result;
}
complex<double> TensorDecAmps::lsLoop(Spin lamX, EvtData* theData, Spin lam1Min, Spin lam1Max, Spin lam2Min, Spin lam2Max, bool withDecs, Spin lamFs ){
complex<double> result(0.,0.);
std::vector< std::shared_ptr<const LScomb> >::iterator it;
for (it=_LSs.begin(); it!=_LSs.end(); ++it){
double theMag=_currentParamMags.at(*it);
double thePhi=_currentParamPhis.at(*it);
complex<double> expi(cos(thePhi), sin(thePhi));
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;
complex<double> amp = theMag*expi*theData->ComplexDouble5SpinString.at(_name).at((*it)->L).at((*it)->S).at(lamX).at(lambda1).at(lambda2);
if(withDecs) amp *=daughterAmp(lambda1, lambda2, theData, lamFs);
result+=amp;
}
}
}
result*=_preFactor*_isospinCG;
return result;
}
void TensorDecAmps::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 TensorDecAmps::print(std::ostream& os) const{
return; //dummy
}
bool TensorDecAmps::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 TensorDecAmps::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);
}