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// $Id: FillerMCParticles.cc,v 1.21 2010/03/18 20:21:00 bendavid Exp $
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#include "MitProd/TreeFiller/interface/FillerMCParticles.h"
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#include "FWCore/MessageLogger/interface/MessageLogger.h"
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#include "DataFormats/Common/interface/Handle.h"
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#include "DataFormats/Common/interface/RefToPtr.h"
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#include "SimDataFormats/GeneratorProducts/interface/HepMCProduct.h"
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#include "DataFormats/HepMCCandidate/interface/GenParticleFwd.h"
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#include "DataFormats/HepMCCandidate/interface/GenParticle.h"
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#include "DataFormats/METReco/interface/METCollection.h"
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#include "SimDataFormats/Track/interface/SimTrack.h"
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#include "SimDataFormats/Track/interface/SimTrackContainer.h"
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#include "SimDataFormats/Vertex/interface/SimVertex.h"
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#include "SimDataFormats/Vertex/interface/SimVertexContainer.h"
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#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticle.h"
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#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticleFwd.h"
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#include "SimDataFormats/TrackingAnalysis/interface/TrackingVertex.h"
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#include "SimDataFormats/TrackingAnalysis/interface/TrackingVertexContainer.h"
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#include "DataFormats/TrackingRecHit/interface/InvalidTrackingRecHit.h"
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#include "DataFormats/TrackReco/interface/HitPattern.h"
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#include "MitAna/DataTree/interface/Names.h"
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#include "MitAna/DataTree/interface/MCParticleCol.h"
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#include "MitAna/DataTree/interface/TrackingParticleCol.h"
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#include "MitProd/ObjectService/interface/ObjectService.h"
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using namespace std;
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using namespace edm;
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using namespace mithep;
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//--------------------------------------------------------------------------------------------------
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FillerMCParticles::FillerMCParticles(const ParameterSet &cfg, const char *name, bool active) :
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BaseFiller(cfg, name, active),
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genActive_(Conf().getUntrackedParameter<bool>("genActive",true)),
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useAodGen_(Conf().getUntrackedParameter<bool>("useAodGen",true)),
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simActive_(Conf().getUntrackedParameter<bool>("simActive",true)),
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trackingActive_(Conf().getUntrackedParameter<bool>("trackingActive",false)),
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fillTracking_(Conf().getUntrackedParameter<bool>("fillTracking",false)),
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genEdmName_(Conf().getUntrackedParameter<string>("genEdmName","genParticles")),
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simEdmName_(Conf().getUntrackedParameter<string>("simEdmName","g4SimHits")),
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trackingEdmName_(Conf().getUntrackedParameter<string>("trackingEdmName",
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"mergedtruth:MergedTrackTruth")),
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genMapName_(Conf().getUntrackedParameter<string>("genMapName","GenMap")),
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simMapName_(Conf().getUntrackedParameter<string>("simMapName","SimMap")),
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trackingMapName_(Conf().getUntrackedParameter<string>("trackingMapName","TrackingMap")),
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mitName_(Conf().getUntrackedParameter<string>("mitName",Names::gkMCPartBrn)),
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mitTrackingName_(Conf().getUntrackedParameter<string>("mitTrackingName",Names::gkTrackingParticleBrn)),
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mcParticles_(new mithep::MCParticleArr(250)),
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trackingParticles_(new mithep::TrackingParticleArr(250)),
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genMap_(genActive_?new mithep::GenParticleBarcodeMap:0),
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aodGenMap_((genActive_&&useAodGen_)?new mithep::AODGenParticleMap:0),
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simMap_(simActive_?new mithep::SimTrackTidMap:0),
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trackingMap_(trackingActive_?new mithep::TrackingParticleMap:0)
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{
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// Constructor.
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}
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//--------------------------------------------------------------------------------------------------
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FillerMCParticles::~FillerMCParticles()
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{
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// Destructor.
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delete mcParticles_;
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delete trackingParticles_;
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delete genMap_;
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delete aodGenMap_;
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delete simMap_;
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delete trackingMap_;
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}
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//--------------------------------------------------------------------------------------------------
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void FillerMCParticles::BookDataBlock(TreeWriter &tws)
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{
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// Add branch to tree and publish our maps.
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Int_t brsize = tws.GetDefaultBrSize();
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if (brsize<128*1024)
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brsize=128*1024;
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tws.AddBranch(mitName_,&mcParticles_,brsize);
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OS()->add<mithep::MCParticleArr>(mcParticles_,mitName_);
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if (trackingActive_ && fillTracking_) {
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tws.AddBranch(mitTrackingName_,&trackingParticles_,brsize);
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OS()->add<mithep::TrackingParticleArr>(trackingParticles_,mitTrackingName_);
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}
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if (genActive_ && !genMapName_.empty()) {
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genMap_->SetBrName(mitName_);
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if (genMap_)
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OS()->add(genMap_,genMapName_);
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}
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if (simActive_ && !simMapName_.empty()) {
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simMap_->SetBrName(mitName_);
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if (simMap_)
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OS()->add(simMap_,simMapName_);
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}
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if (trackingActive_ && !trackingMapName_.empty()) {
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trackingMap_->SetBrName(mitName_);
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if (trackingMap_)
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OS()->add(trackingMap_,trackingMapName_);
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}
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}
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//--------------------------------------------------------------------------------------------------
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void FillerMCParticles::FillDataBlock(const edm::Event &event,
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const edm::EventSetup &setup)
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{
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// Loop over generated or simulated particles and fill their information.
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mcParticles_->Delete();
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if (trackingActive_ && fillTracking_) {
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trackingParticles_->Delete();
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}
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if (genActive_)
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genMap_->Reset();
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if (genActive_ && !useAodGen_) {
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Handle<edm::HepMCProduct> hHepMCProduct;
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GetProduct(genEdmName_, hHepMCProduct, event);
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const HepMC::GenEvent &GenEvent = hHepMCProduct->getHepMCData();
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// loop over all hepmc particles and copy their information
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for (HepMC::GenEvent::particle_const_iterator pgen = GenEvent.particles_begin();
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pgen != GenEvent.particles_end(); ++pgen) {
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HepMC::GenParticle *mcPart = (*pgen);
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if(!mcPart)
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continue;
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mithep::MCParticle *genParticle = mcParticles_->Allocate();
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new (genParticle) mithep::MCParticle(mcPart->momentum().x(),mcPart->momentum().y(),
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mcPart->momentum().z(),mcPart->momentum().e(),
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mcPart->pdg_id(),mcPart->status());
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genParticle->SetIsGenerated();
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genMap_->Add(mcPart->barcode(), genParticle);
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}
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}
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if (genActive_ && useAodGen_) {
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aodGenMap_->Reset();
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Handle<reco::GenParticleCollection> hGenPProduct;
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GetProduct(genEdmName_, hGenPProduct, event);
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// element by element aligned collection of hepmc barcodes associated to
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// the genparticles
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Handle<std::vector<int> > genBarcodes;
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if (simActive_)
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GetProduct(genEdmName_, genBarcodes, event);
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const reco::GenParticleCollection genParticles = *(hGenPProduct.product());
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// loop over all genparticles and copy their information
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for (reco::GenParticleCollection::const_iterator pgen = genParticles.begin();
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pgen != genParticles.end(); ++pgen) {
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mithep::MCParticle *mcPart = mcParticles_->Allocate();
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new (mcPart) mithep::MCParticle(pgen->px(),pgen->py(),
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pgen->pz(),pgen->energy(),
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pgen->pdgId(),pgen->status());
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mcPart->SetIsGenerated();
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// add hepmc barcode association, needed to merge in sim particles
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if (simActive_) {
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int genBarcode = genBarcodes->at(pgen - genParticles.begin());
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genMap_->Add(genBarcode, mcPart);
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}
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edm::Ptr<reco::GenParticle> thePtr(hGenPProduct, pgen - genParticles.begin());
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aodGenMap_->Add(thePtr, mcPart);
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}
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}
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if (simActive_) {
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simMap_->Reset();
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Handle<edm::SimTrackContainer> hSimTrackProduct;
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GetProduct(simEdmName_, hSimTrackProduct, event);
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const edm::SimTrackContainer simTracks = *(hSimTrackProduct.product());
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// loop through all simParticles
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for (SimTrackContainer::const_iterator iM = simTracks.begin();
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iM != simTracks.end(); ++iM) {
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mithep::MCParticle *outSimParticle = 0;
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if (genActive_ && (iM->genpartIndex() >= 0) ) {
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outSimParticle = genMap_->GetMit(iM->genpartIndex());
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if (verbose_>1) {
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printf("Sim px,py,pz,e = %f,%f,%f,%f\nGen px,py,pz,e = %f,%f,%f,%f\n",
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iM->momentum().px(),iM->momentum().py(),
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iM->momentum().pz(),iM->momentum().e(),
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outSimParticle->Px(),outSimParticle->Py(),
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outSimParticle->Pz(),outSimParticle->E());
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}
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} else {
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outSimParticle = mcParticles_->Allocate();
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new (outSimParticle) mithep::MCParticle(iM->momentum().px(),
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iM->momentum().py(),
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iM->momentum().pz(),
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iM->momentum().e(),
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iM->type(), -99);
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}
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outSimParticle->SetIsSimulated();
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simMap_->Add(iM->trackId(), outSimParticle);
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}
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}
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// loop through TrackingParticles and build association map to MCParticles
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if (trackingActive_) {
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trackingMap_->Reset();
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Handle<TrackingParticleCollection> hTrackingParticleProduct;
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GetProduct(trackingEdmName_, hTrackingParticleProduct, event);
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const TrackingParticleCollection trackingParticles = *(hTrackingParticleProduct.product());
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// loop through all TrackingParticles
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for (TrackingParticleCollection::const_iterator iM = trackingParticles.begin();
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iM != trackingParticles.end(); ++iM) {
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if ( simActive_ && iM->g4Tracks().size() ) {
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TrackingParticleRef theRef(hTrackingParticleProduct, iM-trackingParticles.begin());
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const SimTrack &theSimTrack = iM->g4Tracks().at(iM->g4Tracks().size()-1);
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mithep::MCParticle *outSimParticle = simMap_->GetMit(theSimTrack.trackId());
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trackingMap_->Add(theRef, outSimParticle);
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if (fillTracking_) {
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mithep::TrackingParticle *outTracking = trackingParticles_->AddNew();
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//fill associated sim tracks
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for (std::vector<SimTrack>::const_iterator iST = iM->g4Tracks().begin();
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iST != iM->g4Tracks().end(); ++iST) {
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outTracking->AddMCPart(simMap_->GetMit(theSimTrack.trackId()));
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}
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//fill hit information
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reco::HitPattern hitPattern;
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int nHits = 0;
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//loop through sim hits and construct intermediate reco::HitPattern
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for (std::vector<PSimHit>::const_iterator iSimHit = iM->pSimHit_begin();
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iSimHit != iM->pSimHit_end(); ++iSimHit) {
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unsigned int detectorIdIndex = iSimHit->detUnitId();
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DetId detectorId = DetId(detectorIdIndex);
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InvalidTrackingRecHit tHit(detectorId,TrackingRecHit::valid);
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hitPattern.set(tHit,nHits);
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++nHits;
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}
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//construct hit layer bitmask as used in bambu
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BitMask48 hits;
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// search for all good crossed layers (with or without hit)
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for (Int_t hi=0; hi<hitPattern.numberOfHits(); hi++) {
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uint32_t hit = hitPattern.getHitPattern(hi);
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if (hitPattern.getHitType(hit)<=1) {
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if (hitPattern.trackerHitFilter(hit)) {
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hits.SetBit(hitReader_.Layer(hit));
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}
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}
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}
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outTracking->SetHits(hits);
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if (verbose_>1) {
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printf("Hit Layer Mask: ");
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for (Int_t biti=47; biti >= 0; --biti) {
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printf("%i",hits.TestBit(biti));
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}
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printf("\n");
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}
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}
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if (verbose_>1) {
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printf("trackId = %i\n",theSimTrack.trackId());
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printf("Tracking particle has %i SimTracks\n",(int)iM->g4Tracks().size());
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if (iM->g4Tracks().size()>1) {
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for (std::vector<SimTrack>::const_iterator iST = iM->g4Tracks().begin();
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iST != iM->g4Tracks().end(); ++iST) {
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printf("g4 trackid = %i\n",iST->trackId());
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}
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}
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}
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}
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}
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}
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mcParticles_->Trim();
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}
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//--------------------------------------------------------------------------------------------------
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void FillerMCParticles::ResolveLinks(const edm::Event &event,
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const edm::EventSetup &setup)
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{
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// Loop over generated and simulated particles and resolve their links.
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if (genActive_ && !useAodGen_) {
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Handle<edm::HepMCProduct> hHepMCProduct;
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GetProduct(genEdmName_, hHepMCProduct, event);
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const HepMC::GenEvent &GenEvent = hHepMCProduct->getHepMCData();
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for (HepMC::GenEvent::particle_const_iterator pgen = GenEvent.particles_begin();
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pgen != GenEvent.particles_end(); ++pgen) {
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HepMC::GenParticle *mcPart = (*pgen);
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if(!mcPart)
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continue;
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// check if genpart has a decay vertex
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HepMC::GenVertex *dVertex = mcPart->end_vertex();
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if (!dVertex)
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continue;
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// find corresponding mithep genparticle parent in association table
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mithep::MCParticle *genParent = genMap_->GetMit(mcPart->barcode());
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// set decay vertex
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// division by 10.0 is needed due to HepMC use of mm instead of cm for distance units
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genParent->SetVertex(dVertex->point3d().x()/10.0,
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dVertex->point3d().y()/10.0,
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dVertex->point3d().z()/10.0);
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// loop through daugthers
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for (HepMC::GenVertex::particles_out_const_iterator pgenD =
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dVertex->particles_out_const_begin();
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pgenD != dVertex->particles_out_const_end(); ++pgenD) {
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HepMC::GenParticle *mcDaughter = (*pgenD);
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mithep::MCParticle *genDaughter = genMap_->GetMit(mcDaughter->barcode());
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genParent->AddDaughter(genDaughter);
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if (!(genDaughter->HasMother()))
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genDaughter->SetMother(genParent);
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}
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}
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}
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// loop over aod GenParticle candidates and resolve their links
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if (genActive_ && useAodGen_) {
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Handle<reco::GenParticleCollection> hGenPProduct;
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GetProduct(genEdmName_, hGenPProduct, event);
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const reco::GenParticleCollection genParticles = *(hGenPProduct.product());
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// loop over all genparticles and copy their information
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for (reco::GenParticleCollection::const_iterator pgen = genParticles.begin();
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pgen != genParticles.end(); ++pgen) {
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int nDaughters = pgen->numberOfDaughters();
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if (nDaughters>0) {
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edm::Ptr<reco::GenParticle> thePtr(hGenPProduct, pgen - genParticles.begin());
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MCParticle *mcMother = aodGenMap_->GetMit(thePtr);
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for (int i=0; i<nDaughters; ++i) {
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const reco::Candidate *genDaughter = pgen->daughter(i);
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MCParticle *mcDaughter = aodGenMap_->GetMit(refToPtr(pgen->daughterRef(i)));
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// set mother decay vertex
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if (i==0)
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mcMother->SetVertex(genDaughter->vx(),genDaughter->vy(),genDaughter->vz());
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// set mother-daughter links
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mcMother->AddDaughter(mcDaughter);
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if (!mcDaughter->HasMother())
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mcDaughter->SetMother(mcMother);
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}
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}
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}
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}
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| 380 |
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| 381 |
// loop over SimTracks and resolve links
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| 382 |
if (simActive_) {
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| 383 |
Handle<edm::SimTrackContainer> hSimTrackProduct;
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GetProduct(simEdmName_, hSimTrackProduct, event);
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const edm::SimTrackContainer simTracks = *(hSimTrackProduct.product());
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Handle<std::vector<SimVertex> > hSimVertexProduct;
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GetProduct(simEdmName_, hSimVertexProduct, event);
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const edm::SimVertexContainer simVertexes = *(hSimVertexProduct.product());
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| 393 |
// loop through all simParticles
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| 394 |
for (SimTrackContainer::const_iterator iM = simTracks.begin();
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| 395 |
iM != simTracks.end(); ++iM) {
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| 397 |
if (iM->vertIndex()>=0) {
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| 398 |
mithep::MCParticle *simDaughter = simMap_->GetMit(iM->trackId());
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| 399 |
const SimVertex &theVertex = simVertexes.at(iM->vertIndex());
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| 400 |
if (theVertex.parentIndex()>=0) {
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| 401 |
mithep::MCParticle *simParent = simMap_->GetMit(theVertex.parentIndex());
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| 402 |
simParent->SetVertex(theVertex.position().x(),
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theVertex.position().y(),
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theVertex.position().z());
|
| 405 |
//make sure we don't double count the decay tree
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| 406 |
if ( !simParent->HasDaughter(simDaughter) ) {
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| 407 |
simParent->AddDaughter(simDaughter);
|
| 408 |
}
|
| 409 |
if ( !simDaughter->HasMother() ) {
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| 410 |
simDaughter->SetMother(simParent);
|
| 411 |
}
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| 412 |
}
|
| 413 |
}
|
| 414 |
}
|
| 415 |
}
|
| 416 |
|
| 417 |
if (verbose_>1 && trackingActive_) {
|
| 418 |
Handle<TrackingParticleCollection> hTrackingParticleProduct;
|
| 419 |
GetProduct(trackingEdmName_, hTrackingParticleProduct, event);
|
| 420 |
|
| 421 |
const TrackingParticleCollection trackingParticles = *(hTrackingParticleProduct.product());
|
| 422 |
|
| 423 |
// loop through all simParticles
|
| 424 |
for (TrackingParticleCollection::const_iterator iM = trackingParticles.begin();
|
| 425 |
iM != trackingParticles.end(); ++iM) {
|
| 426 |
|
| 427 |
TrackingParticleRef theRef(hTrackingParticleProduct, iM-trackingParticles.begin());
|
| 428 |
|
| 429 |
mithep::MCParticle *simParent = trackingMap_->GetMit(theRef);
|
| 430 |
printf("MCParticle pdg = %i, Daughter Pdgs: ", simParent->PdgId());
|
| 431 |
for (UInt_t i=0; i<simParent->NDaughters(); ++i) {
|
| 432 |
printf("%i, ", simParent->Daughter(i)->PdgId());
|
| 433 |
}
|
| 434 |
printf("\n");
|
| 435 |
|
| 436 |
printf("TrackingParticle pdg = %i, Daughter Pdgs: ", iM->pdgId());
|
| 437 |
for (TrackingVertexRefVector::iterator v= iM->decayVertices().begin();
|
| 438 |
v != iM->decayVertices().end(); ++v) {
|
| 439 |
for (TrackingParticleRefVector::iterator pd = v->get()->daughterTracks().begin();
|
| 440 |
pd != v->get()->daughterTracks().end(); ++pd) {
|
| 441 |
printf("%i, ", pd->get()->pdgId());
|
| 442 |
}
|
| 443 |
}
|
| 444 |
printf("\n");
|
| 445 |
}
|
| 446 |
}
|
| 447 |
}
|
