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parameters I am remotely ok with #39

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Oct 12, 2022
Merged

parameters I am remotely ok with #39

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28 changes: 26 additions & 2 deletions RecoParticleFlow/PFTruthProducer/plugins/PFTruthParticleProducer.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@

#include "FWCore/Utilities/interface/EDGetToken.h"
#include <set>
#include "DataFormats/Math/interface/deltaR.h"

//this is now just for HGCAL
#include "RecoHGCal/GraphReco/interface/HGCalTrackPropagator.h"
Expand Down Expand Up @@ -118,7 +119,7 @@ class PFTruthParticleProducer : public edm::stream::EDProducer<> {
edm::ESGetToken<CaloGeometry, CaloGeometryRecord> caloGeoToken_;
hgcal::RecHitTools hgcrechittools_;

float pfMatchThreshold_;
float pfMatchThreshold_,pfMatchDRThreshold_;

};

Expand All @@ -141,7 +142,8 @@ PFTruthParticleProducer::PFTruthParticleProducer(const edm::ParameterSet &pset)
produces<edm::Association<PFTruthParticleCollection>>("caloRecHitToPFTruth");
produces<edm::Association<PFTruthParticleCollection>>("trackToPFTruth");

pfMatchThreshold_=0.95;//to be configured
pfMatchThreshold_=0.9;//to be configured
pfMatchDRThreshold_=0.04;
}

PFTruthParticleProducer::~PFTruthParticleProducer() {}
Expand Down Expand Up @@ -173,6 +175,28 @@ std::vector<size_t> PFTruthParticleProducer::matchedSCtoTrackIdxs(const SimClust
return out;

//check which G4 track is most likely to be representing the reco track
auto proptrack = trackprop_.propagateObject(track,track.charge());

//proptrack.momentum;
//proptrack.pos;

//now do a simple matching at front face (truth assisted since the SC refs are anyway by primary)
double totmom = 0 ;
for(const auto& scref: simClusters){
auto bpos4v= scref->g4Tracks().at(0).getPositionAtBoundary();
LocalVector boundaryPos(bpos4v.x(),bpos4v.y(),bpos4v.z());

double drsq = reco::deltaR2(boundaryPos.eta(), boundaryPos.phi(), proptrack.pos.eta(), proptrack.pos.phi());
if(drsq > pfMatchDRThreshold_*pfMatchDRThreshold_)
continue;
out.push_back(scref.key());
totmom += scref->impactMomentum().P();
}
if(totmom < tp.p4().P()*pfMatchThreshold_)
return std::vector<size_t>(); //discard
return out;

//old ----------------------------------------------------------------------

std::vector<std::vector<size_t> > mergeIdxs;
std::vector<const SimCluster* > tomerge;
Expand Down