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// -*- C++ -*-
// user include files
#include "FWCore/Framework/interface/MakerMacros.h"
#include "Calibration/EcalCalibAlgos/interface/ElectronRecalibSuperClusterAssociator.h"
#include "DataFormats/GsfTrackReco/interface/GsfTrack.h"
#include <iostream>
#include "DataFormats/Math/interface/LorentzVector.h"
#include "DataFormats/Math/interface/deltaR.h"
using namespace reco;
using namespace edm;
ElectronRecalibSuperClusterAssociator::ElectronRecalibSuperClusterAssociator(const edm::ParameterSet& iConfig) {
#ifdef DEBUG
std::cout << "ElectronRecalibSuperClusterAssociator::ElectronRecalibSuperClusterAssociator" << std::endl;
#endif
//register your products
produces<GsfElectronCollection>();
produces<GsfElectronCoreCollection>();
superClusterCollectionEB_ = iConfig.getParameter<edm::InputTag>("superClusterCollectionEB");
superClusterCollectionEE_ = iConfig.getParameter<edm::InputTag>("superClusterCollectionEE");
outputLabel_ = iConfig.getParameter<std::string>("outputLabel");
electronSrc_ = iConfig.getParameter<edm::InputTag>("electronSrc");
electronToken_ = consumes<reco::GsfElectronCollection>(electronSrc_);
ebScToken_ = consumes<reco::SuperClusterCollection>(superClusterCollectionEB_);
eeScToken_ = consumes<reco::SuperClusterCollection>(superClusterCollectionEE_);
#ifdef DEBUG
std::cout << "ElectronRecalibSuperClusterAssociator::ElectronRecalibSuperClusterAssociator::end" << std::endl;
#endif
}
ElectronRecalibSuperClusterAssociator::~ElectronRecalibSuperClusterAssociator() {}
// ------------ method called to produce the data ------------
void ElectronRecalibSuperClusterAssociator::produce(edm::Event& e, const edm::EventSetup& iSetup) {
#ifdef DEBUG
std::cout << "GEDElectronRecalibSuperClusterAssociator::produce" << std::endl;
#endif
// Create the output collections
auto pOutEle = std::make_unique<GsfElectronCollection>();
auto pOutEleCore = std::make_unique<GsfElectronCoreCollection>();
// Get SuperClusters in EB
Handle<reco::SuperClusterCollection> superClusterEBHandle;
e.getByToken(ebScToken_, superClusterEBHandle);
#ifdef DEBUG
std::cout << "EB scCollection->size()" << superClusterEBHandle->size() << std::endl;
#endif
// Get SuperClusters in EE
Handle<reco::SuperClusterCollection> superClusterEEHandle;
e.getByToken(eeScToken_, superClusterEEHandle);
#ifdef DEBUG
std::cout << "EE scCollection->size()" << superClusterEEHandle->size() << std::endl;
#endif
// Get Electrons
edm::Handle<reco::GsfElectronCollection> eleHandle;
e.getByToken(electronToken_, eleHandle);
GsfElectronCoreRefProd rEleCore = e.getRefBeforePut<GsfElectronCoreCollection>();
edm::Ref<GsfElectronCoreCollection>::key_type idxEleCore = 0;
for (reco::GsfElectronCollection::const_iterator eleIt = eleHandle->begin(); eleIt != eleHandle->end(); eleIt++) {
float DeltaRMineleSCbarrel(0.15); //initial minDeltaR
float DeltaRMineleSCendcap(0.15);
const reco::SuperCluster* nearestSCbarrel = nullptr;
const reco::SuperCluster* nearestSCendcap = nullptr;
int iscRef = -1, iscRefendcap = -1;
int iSC = 0;
if (eleIt->trackerDrivenSeed()) {
edm::LogError("trackerDriven") << "skipping trackerDriven electrons";
continue;
}
// first loop is on EB superClusters
iSC = 0;
for (reco::SuperClusterCollection::const_iterator scIt = superClusterEBHandle->begin();
scIt != superClusterEBHandle->end();
scIt++, iSC++) {
double DeltaReleSC = sqrt(reco::deltaR2(eleIt->eta(), eleIt->phi(), scIt->eta(), scIt->phi()));
if (DeltaReleSC < DeltaRMineleSCbarrel) //save the nearest SC
{
DeltaRMineleSCbarrel = DeltaReleSC;
nearestSCbarrel = &*scIt;
iscRef = iSC;
}
#ifdef DEBUG
std::cout << "EB: " << scIt - superClusterEBHandle->begin() << " " << iSC << " " << iscRef << "\t"
<< std::setprecision(4) << scIt->energy() << " " << scIt->eta() << " " << scIt->phi() << "\t--\t"
<< eleIt->energy() << " " << eleIt->eta() << " " << eleIt->phi() << "\t" << DeltaRMineleSCbarrel
<< std::endl;
#endif
}
// second loop is on EE superClusters
iSC = 0;
for (reco::SuperClusterCollection::const_iterator scIt = superClusterEEHandle->begin();
scIt != superClusterEEHandle->end();
scIt++, iSC++) {
#ifdef DEBUG
std::cout << "EE: " << scIt - superClusterEEHandle->begin() << " " << iSC << " " << iscRef << "\t"
<< std::setprecision(4) << scIt->energy() << " " << scIt->eta() << " " << scIt->phi() << "\t--\t "
<< eleIt->energy() << " " << eleIt->eta() << " " << eleIt->phi() << "\t" << DeltaRMineleSCendcap
<< std::endl;
#endif
double DeltaReleSC = sqrt(reco::deltaR2(eleIt->eta(), eleIt->phi(), scIt->eta(), scIt->phi()));
if (DeltaReleSC < DeltaRMineleSCendcap) {
DeltaRMineleSCendcap = DeltaReleSC;
nearestSCendcap = &*scIt;
iscRefendcap = iSC;
}
}
if (eleIt->isEB() && DeltaRMineleSCbarrel > DeltaRMineleSCendcap) {
edm::LogError("ElectronRecalibAssociator") << "EB electron, but nearest SC is in EE";
;
continue;
}
if (eleIt->isEB() && nearestSCbarrel) {
pOutEleCore->push_back(*eleIt->core()); // clone the old core and add to the collection of new cores
reco::GsfElectronCoreRef newEleCoreRef(rEleCore,
idxEleCore++); // reference to the new electron core in the new collection
reco::GsfElectronCore& newEleCore = pOutEleCore->back(); // pick the clone
reco::SuperClusterRef scRef(reco::SuperClusterRef(superClusterEBHandle, iscRef)); // Reference to the new SC
#ifndef CMSSW_5_3_X
newEleCore.setParentSuperCluster(scRef); // mustache
#endif
newEleCore.setSuperCluster(scRef); // let's check this! if it is possible to recreate the pfSC
pOutEle->push_back(reco::GsfElectron(*eleIt, newEleCoreRef));
reco::GsfElectron& newEle = pOutEle->back();
//-- first possibility: set the new p4SC using refined SC
newEle.setP4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER,
eleIt->p4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER),
eleIt->p4Error(reco::GsfElectron::P4_FROM_SUPER_CLUSTER),
false); //*newEle.superCluster()->energy()/eleIt->superCluster()->energy());
//-- second possibility: set the new p4SC using mustache SC
//newEle.setP4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER, eleIt->p4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER)*newEle.parentSuperCluster()->energy()/eleIt->parentSuperCluster()->energy(), eleIt->p4Error(reco::GsfElectron::P4_FROM_SUPER_CLUSTER), false);
//-- update the correctedEcalEnergy
newEle.setCorrectedEcalEnergy(eleIt->ecalEnergy() *
(scRef->energy() / eleIt->p4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER).energy()));
newEle.setCorrectedEcalEnergyError(eleIt->ecalEnergyError() * (scRef->energy() / eleIt->ecalEnergy()));
} else if (!(eleIt->isEB()) && nearestSCendcap) {
pOutEleCore->push_back(*eleIt->core()); // clone the old core and add to the collection of new cores
reco::GsfElectronCoreRef newEleCoreRef(rEleCore,
idxEleCore++); // reference to the new electron core in the new collection
reco::GsfElectronCore& newEleCore = pOutEleCore->back(); // pick the clone
reco::SuperClusterRef scRef(
reco::SuperClusterRef(superClusterEEHandle, iscRefendcap)); // Reference to the new SC
#ifndef CMSSW_5_3_X
newEleCore.setParentSuperCluster(scRef); // mustache
#endif
newEleCore.setSuperCluster(scRef); // let's check this! if it is possible to recreate the pfSC
pOutEle->push_back(reco::GsfElectron(*eleIt, newEleCoreRef));
reco::GsfElectron& newEle = pOutEle->back();
//-- first possibility: set the new p4SC using refined SC
newEle.setP4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER,
eleIt->p4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER),
eleIt->p4Error(reco::GsfElectron::P4_FROM_SUPER_CLUSTER),
false); //*newEle.superCluster()->energy()/eleIt->superCluster()->energy());
//-- second possibility: set the new p4SC using mustache SC
//newEle.setP4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER, eleIt->p4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER)*newEle.parentSuperCluster()->energy()/eleIt->parentSuperCluster()->energy(), eleIt->p4Error(reco::GsfElectron::P4_FROM_SUPER_CLUSTER), false);
//-- update the correctedEcalEnergy
newEle.setCorrectedEcalEnergy(eleIt->ecalEnergy() *
(scRef->energy() / eleIt->p4(reco::GsfElectron::P4_FROM_SUPER_CLUSTER).energy()));
newEle.setCorrectedEcalEnergyError(eleIt->ecalEnergyError() * (scRef->energy() / eleIt->ecalEnergy()));
} else {
edm::LogError("Failed SC association") << "No SC to be associated to the electron";
}
}
#ifdef DEBUG
std::cout << "Filled new electrons " << pOutEle->size() << std::endl;
std::cout << "Filled new electronsCore " << pOutEleCore->size() << std::endl;
#endif
// put result into the Event
e.put(std::move(pOutEle));
e.put(std::move(pOutEleCore));
}
DEFINE_FWK_MODULE(ElectronRecalibSuperClusterAssociator);
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