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// system include files
#include <memory>
// user include files
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/one/EDAnalyzer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/ServiceRegistry/interface/Service.h"
#include "CommonTools/UtilAlgos/interface/TFileService.h"
#include "DataFormats/EgammaCandidates/interface/GsfElectron.h"
#include "DataFormats/EgammaCandidates/interface/GsfElectronFwd.h"
#include "EgammaAnalysis/ElectronTools/interface/EcalIsolationCorrector.h"
#include "TH1F.h"
#include <iostream>
class CorrectECALIsolation : public edm::one::EDAnalyzer<edm::one::SharedResources> {
public:
explicit CorrectECALIsolation(const edm::ParameterSet&);
~CorrectECALIsolation() override;
private:
void analyze(const edm::Event&, const edm::EventSetup&) override;
edm::ParameterSet conf_;
bool isData_;
edm::EDGetTokenT<reco::GsfElectronCollection> tokenGsfElectrons_;
TH1F* uncorrectedIsolationEB_;
TH1F* correctedIsolationEB_;
TH1F* uncorrectedIsolationEE_;
TH1F* correctedIsolationEE_;
};
CorrectECALIsolation::CorrectECALIsolation(const edm::ParameterSet& iConfig) : conf_(iConfig) {
usesResource(TFileService::kSharedResource);
isData_ = iConfig.getUntrackedParameter<bool>("isData", false);
tokenGsfElectrons_ = consumes<reco::GsfElectronCollection>(iConfig.getParameter<edm::InputTag>("Electrons"));
edm::Service<TFileService> fs;
uncorrectedIsolationEB_ = fs->make<TH1F>("uncorrectedIsolationEB", "uncorrected IsolationEB", 50, 0, 10);
correctedIsolationEB_ = fs->make<TH1F>("correctedIsolationEB", "corrected IsolationEB", 50, 0, 10);
uncorrectedIsolationEE_ = fs->make<TH1F>("uncorrectedIsolationEE", "uncorrected IsolationEE", 50, 0, 10);
correctedIsolationEE_ = fs->make<TH1F>("correctedIsolationEE", "corrected IsolationEE", 50, 0, 10);
}
CorrectECALIsolation::~CorrectECALIsolation() {}
void CorrectECALIsolation::analyze(const edm::Event& iEvent, const edm::EventSetup& iSetup) {
edm::Handle<reco::GsfElectronCollection> theEGammaCollection;
iEvent.getByToken(tokenGsfElectrons_, theEGammaCollection);
const reco::GsfElectronCollection theEGamma = *(theEGammaCollection.product());
// Setup a corrector for electrons
EcalIsolationCorrector ecalIsoCorr(true);
unsigned nele = theEGammaCollection->size();
for (unsigned iele = 0; iele < nele; ++iele) {
reco::GsfElectronRef myElectronRef(theEGammaCollection, iele);
float uncorrIso = myElectronRef->dr03EcalRecHitSumEt();
float corrIso = ecalIsoCorr.correctForHLTDefinition(*myElectronRef, iEvent.id().run(), isData_);
std::cout << "Uncorrected Isolation Sum: " << uncorrIso << " - Corrected: " << corrIso << std::endl;
if (myElectronRef->isEB()) {
uncorrectedIsolationEB_->Fill(uncorrIso);
correctedIsolationEB_->Fill(corrIso);
} else {
uncorrectedIsolationEE_->Fill(uncorrIso);
correctedIsolationEE_->Fill(corrIso);
}
}
}
//define this as a plug-in
DEFINE_FWK_MODULE(CorrectECALIsolation);
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