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CalibratedPatElectronProducer.cc
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CalibratedPatElectronProducer.cc
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// This file is imported from:
//http://cmssw.cvs.cern.ch/cgi-bin/cmssw.cgi/UserCode/Mangano/WWAnalysis/AnalysisStep/plugins/CalibratedPatElectronProducer.cc?revision=1.2&view=markup
// -*- C++ -*-
//
// Package: EgammaElectronProducers
// Class: CalibratedPatElectronProducer
//
/**\class CalibratedPatElectronProducer
Description: EDProducer of PatElectron objects
Implementation:
<Notes on implementation>
*/
//#if CMSSW_VERSION>500
#include "EgammaAnalysis/ElectronTools/plugins/CalibratedPatElectronProducer.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/ParameterSet/interface/ConfigurationDescriptions.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"
#include "FWCore/ParameterSet/interface/FileInPath.h"
#include "DataFormats/EgammaReco/interface/ElectronSeed.h"
#include "DataFormats/GsfTrackReco/interface/GsfTrack.h"
#include "DataFormats/TrackCandidate/interface/TrackCandidateCollection.h"
#include "DataFormats/TrackingRecHit/interface/TrackingRecHitFwd.h"
#include "DataFormats/EgammaCandidates/interface/GsfElectronFwd.h"
#include "DataFormats/BeamSpot/interface/BeamSpot.h"
#include "DataFormats/PatCandidates/interface/Electron.h"
#include "EgammaAnalysis/ElectronTools/interface/ElectronEnergyCalibrator.h"
#include <iostream>
CalibratedPatElectronProducer::CalibratedPatElectronProducer( const edm::ParameterSet & cfg )
{
produces<pat::ElectronCollection>();
inputPatElectronsToken = consumes<edm::View<reco::Candidate> >(cfg.getParameter<edm::InputTag>("inputPatElectronsTag"));
dataset = cfg.getParameter<std::string>("inputDataset");
isMC = cfg.getParameter<bool>("isMC");
updateEnergyError = cfg.getParameter<bool>("updateEnergyError");
lumiRatio = cfg.getParameter<double>("lumiRatio");
correctionsType = cfg.getParameter<int>("correctionsType");
applyLinearityCorrection = cfg.getParameter<bool>("applyLinearityCorrection");
combinationType = cfg.getParameter<int>("combinationType");
verbose = cfg.getParameter<bool>("verbose");
synchronization = cfg.getParameter<bool>("synchronization");
combinationRegressionInputPath = cfg.getParameter<std::string>("combinationRegressionInputPath");
scaleCorrectionsInputPath = cfg.getParameter<std::string>("scaleCorrectionsInputPath");
linCorrectionsInputPath = cfg.getParameter<std::string>("linearityCorrectionsInputPath");
//basic checks
if ( isMC && ( dataset != "Summer11" && dataset != "Fall11"
&& dataset != "Summer12" && dataset != "Summer12_DR53X_HCP2012"
&& dataset != "Summer12_LegacyPaper" ) )
{
throw cms::Exception("CalibratedPATElectronProducer|ConfigError") << "Unknown MC dataset";
}
if ( !isMC && ( dataset != "Prompt" && dataset != "ReReco"
&& dataset != "Jan16ReReco" && dataset != "ICHEP2012"
&& dataset != "Moriond2013" && dataset != "22Jan2013ReReco" ) )
{
throw cms::Exception("CalibratedPATElectronProducer|ConfigError") << "Unknown Data dataset";
}
// Linearity correction only applied on combined momentum obtain with regression combination
if(combinationType!=3 && applyLinearityCorrection)
{
std::cout << "[CalibratedElectronProducer] "
<< "Warning: you chose combinationType!=3 and applyLinearityCorrection=True. Linearity corrections are only applied on top of combination 3." << std::endl;
}
std::cout << "[CalibratedPATElectronProducer] Correcting scale for dataset " << dataset << std::endl;
//initializations
std::string pathToDataCorr;
switch ( correctionsType )
{
case 0:
break;
case 1:
if ( verbose )
{
std::cout << "You choose regression 1 scale corrections" << std::endl;
}
break;
case 2:
if ( verbose )
{
std::cout << "You choose regression 2 scale corrections." << std::endl;
}
break;
case 3:
throw cms::Exception("CalibratedPATElectronProducer|ConfigError")
<< "You choose standard non-regression ecal energy scale corrections. They are not implemented yet.";
break;
default:
throw cms::Exception("CalibratedPATElectronProducer|ConfigError")
<< "Unknown correctionsType !!!";
}
theEnCorrector = new ElectronEnergyCalibrator
(
edm::FileInPath(scaleCorrectionsInputPath.c_str()).fullPath().c_str(),
edm::FileInPath(linCorrectionsInputPath.c_str()).fullPath().c_str(),
dataset,
correctionsType,
applyLinearityCorrection,
lumiRatio,
isMC,
updateEnergyError,
verbose,
synchronization
);
if ( verbose )
{
std::cout << "[CalibratedPATElectronProducer] "
<< "ElectronEnergyCalibrator object is created " << std::endl;
}
myEpCombinationTool = new EpCombinationTool();
myEpCombinationTool->init
(
edm::FileInPath(combinationRegressionInputPath.c_str()).fullPath().c_str(),
"CombinationWeight"
);
myCombinator = new ElectronEPcombinator();
if ( verbose )
{
std::cout << "[CalibratedPATElectronProducer] "
<< "Combination tools are created and initialized " << std::endl;
}
}
CalibratedPatElectronProducer::~CalibratedPatElectronProducer()
{}
void CalibratedPatElectronProducer::produce( edm::Event & event, const edm::EventSetup & setup )
{
edm::Handle<edm::View<reco::Candidate> > oldElectrons ;
event.getByToken(inputPatElectronsToken,oldElectrons) ;
std::unique_ptr<pat::ElectronCollection> electrons( new pat::ElectronCollection ) ;
pat::ElectronCollection::const_iterator electron ;
pat::ElectronCollection::iterator ele ;
// first clone the initial collection
for
(
edm::View<reco::Candidate>::const_iterator ele=oldElectrons->begin();
ele!=oldElectrons->end();
++ele
)
{
const pat::ElectronRef elecsRef = edm::RefToBase<reco::Candidate>(oldElectrons,ele-oldElectrons->begin()).castTo<pat::ElectronRef>();
pat::Electron clone = *edm::RefToBase<reco::Candidate>(oldElectrons,ele-oldElectrons->begin()).castTo<pat::ElectronRef>();
electrons->push_back(clone);
}
if (correctionsType != 0 )
{
for
(
ele = electrons->begin();
ele != electrons->end() ;
++ele
)
{
int elClass = -1;
int run = event.run();
float r9 = ele->r9();
double correctedEcalEnergy = ele->correctedEcalEnergy();
double correctedEcalEnergyError = ele->correctedEcalEnergyError();
double trackMomentum = ele->trackMomentumAtVtx().R();
double trackMomentumError = ele->trackMomentumError();
double combinedMomentum = ele->p();
double combinedMomentumError = 0;
if ( ele->candidateP4Kind() != reco::GsfElectron::P4_UNKNOWN )
{
combinedMomentumError = ele->p4Error(ele->candidateP4Kind());
}
// FIXME : p4Error not filled for pure tracker electrons
// Recompute it using the parametrization implemented in
// RecoEgamma/EgammaElectronAlgos/src/ElectronEnergyCorrector.cc::simpleParameterizationUncertainty()
if( !ele->ecalDrivenSeed() )
{
double error = 999. ;
double momentum = (combinedMomentum<15. ? 15. : combinedMomentum);
if ( ele->isEB() )
{
float parEB[3] = { 5.24e-02, 2.01e-01, 1.00e-02} ;
error = momentum * sqrt( pow(parEB[0]/sqrt(momentum),2) + pow(parEB[1]/momentum,2) + pow(parEB[2],2) );
}
else if ( ele->isEE() )
{
float parEE[3] = { 1.46e-01, 9.21e-01, 1.94e-03} ;
error = momentum * sqrt( pow(parEE[0]/sqrt(momentum),2) + pow(parEE[1]/momentum,2) + pow(parEE[2],2) );
}
combinedMomentumError = error;
}
if (ele->classification() == reco::GsfElectron::GOLDEN) {elClass = 0;}
if (ele->classification() == reco::GsfElectron::BIGBREM) {elClass = 1;}
if (ele->classification() == reco::GsfElectron::BADTRACK) {elClass = 2;}
if (ele->classification() == reco::GsfElectron::SHOWERING) {elClass = 3;}
if (ele->classification() == reco::GsfElectron::GAP) {elClass = 4;}
SimpleElectron mySimpleElectron
(
run,
elClass,
r9,
correctedEcalEnergy,
correctedEcalEnergyError,
trackMomentum,
trackMomentumError,
ele->ecalRegressionEnergy(),
ele->ecalRegressionError(),
combinedMomentum,
combinedMomentumError,
ele->superCluster()->eta(),
ele->isEB(),
isMC,
ele->ecalDriven(),
ele->trackerDrivenSeed()
);
// energy calibration for ecalDriven electrons
if ( ele->core()->ecalDrivenSeed() || correctionsType==2 || combinationType==3 )
{
theEnCorrector->calibrate(mySimpleElectron, event.streamID());
// E-p combination
switch ( combinationType )
{
case 0:
if ( verbose )
{
std::cout << "[CalibratedPATElectronProducer] "
<< "You choose not to combine." << std::endl;
}
break;
case 1:
if ( verbose )
{
std::cout << "[CalibratedPATElectronProducer] "
<< "You choose corrected regression energy for standard combination" << std::endl;
}
myCombinator->setCombinationMode(1);
myCombinator->combine(mySimpleElectron);
break;
case 2:
if ( verbose )
{
std::cout << "[CalibratedPATElectronProducer] "
<< "You choose uncorrected regression energy for standard combination" << std::endl;
}
myCombinator->setCombinationMode(2);
myCombinator->combine(mySimpleElectron);
break;
case 3:
if ( verbose )
{
std::cout << "[CalibratedPATElectronProducer] "
<< "You choose regression combination." << std::endl;
}
myEpCombinationTool->combine(mySimpleElectron);
theEnCorrector->correctLinearity(mySimpleElectron);
break;
default:
throw cms::Exception("CalibratedPATElectronProducer|ConfigError")
<< "Unknown combination Type !!!" ;
}
math::XYZTLorentzVector oldMomentum = ele->p4() ;
math::XYZTLorentzVector newMomentum_ ;
newMomentum_ = math::XYZTLorentzVector
( oldMomentum.x()*mySimpleElectron.getCombinedMomentum()/oldMomentum.t(),
oldMomentum.y()*mySimpleElectron.getCombinedMomentum()/oldMomentum.t(),
oldMomentum.z()*mySimpleElectron.getCombinedMomentum()/oldMomentum.t(),
mySimpleElectron.getCombinedMomentum() ) ;
ele->correctMomentum
(
newMomentum_,
mySimpleElectron.getTrackerMomentumError(),
mySimpleElectron.getCombinedMomentumError()
);
if ( verbose )
{
std::cout << "[CalibratedPATElectronProducer] Combined momentum after saving "
<< ele->p4().t() << std::endl;
}
}// end of if (ele.core()->ecalDrivenSeed())
}// end of loop on electrons
} else
{
if ( verbose )
{
std::cout << "[CalibratedPATElectronProducer] "
<< "You choose not to correct. Uncorrected Regression Energy is taken." << std::endl;
}
}
// Save the electrons
event.put(std::move(electrons));
}
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Framework/interface/ESProducer.h"
#include "FWCore/Framework/interface/ModuleFactory.h"
DEFINE_FWK_MODULE(CalibratedPatElectronProducer);