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#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "DataFormats/EcalRecHit/interface/EcalRecHitCollections.h"
#include "DataFormats/EcalDetId/interface/EBDetId.h"
#include "DataFormats/DetId/interface/DetId.h"
#include "CondFormats/EcalObjects/interface/EcalIntercalibConstants.h"
#include "CondFormats/DataRecord/interface/EcalIntercalibConstantsRcd.h"
#include "Calibration/Tools/interface/calibXMLwriter.h"
#include "Calibration/Tools/interface/CalibrationCluster.h"
#include "Calibration/Tools/interface/HouseholderDecomposition.h"
#include "Calibration/Tools/interface/MinL3Algorithm.h"
#include "Calibration/EcalCalibAlgos/interface/ZeeKinematicTools.h"
#include "Calibration/Tools/interface/ZIterativeAlgorithmWithFit.h"
#include "DataFormats/EgammaCandidates/interface/Electron.h"
#include "DataFormats/EgammaReco/interface/SuperCluster.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/TrackReco/interface/TrackExtraFwd.h"
#include "TFile.h"
#include "TH1.h"
#include "TH2.h"
#include "TF1.h"
#include "TRandom.h"
#include <iostream>
#include <string>
#include <stdexcept>
#include <vector>
#include "DataFormats/EgammaCandidates/interface/GsfElectron.h"
ZeeKinematicTools::ZeeKinematicTools() {}
ZeeKinematicTools::~ZeeKinematicTools() {}
//--------------------------------------------
float ZeeKinematicTools::cosThetaElectrons_SC(const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate,
float ele1EnergyCorrection,
float ele2EnergyCorrection) {
float theta1 = 2. * atan(exp(-aZCandidate.first->getRecoElectron()->superCluster()->eta()));
float phi1 = aZCandidate.first->getRecoElectron()->superCluster()->phi();
float x1 = aZCandidate.first->getRecoElectron()->superCluster()->energy() * sin(theta1) * cos(phi1);
float y1 = aZCandidate.first->getRecoElectron()->superCluster()->energy() * sin(theta1) * sin(phi1);
float z1 = aZCandidate.first->getRecoElectron()->superCluster()->energy() * cos(theta1);
float mod1 = sqrt(x1 * x1 + y1 * y1 + z1 * z1);
float theta2 = 2. * atan(exp(-aZCandidate.second->getRecoElectron()->superCluster()->eta()));
float phi2 = aZCandidate.second->getRecoElectron()->superCluster()->phi();
float x2 = aZCandidate.second->getRecoElectron()->superCluster()->energy() * sin(theta2) * cos(phi2);
float y2 = aZCandidate.second->getRecoElectron()->superCluster()->energy() * sin(theta2) * sin(phi2);
float z2 = aZCandidate.second->getRecoElectron()->superCluster()->energy() * cos(theta2);
float mod2 = sqrt(x2 * x2 + y2 * y2 + z2 * z2);
return (x1 * x2 + y1 * y2 + z1 * z2) / (mod1 * mod2);
}
//--------------------------------------------
float ZeeKinematicTools::cosThetaElectrons_TK(const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate,
float ele1EnergyCorrection,
float ele2EnergyCorrection) {
float theta1 = 2. * atan(exp(-aZCandidate.first->getRecoElectron()->eta()));
float phi1 = aZCandidate.first->getRecoElectron()->phi();
float x1 = aZCandidate.first->getRecoElectron()->superCluster()->energy() * sin(theta1) * cos(phi1);
float y1 = aZCandidate.first->getRecoElectron()->superCluster()->energy() * sin(theta1) * sin(phi1);
float z1 = aZCandidate.first->getRecoElectron()->superCluster()->energy() * cos(theta1);
float mod1 = sqrt(x1 * x1 + y1 * y1 + z1 * z1);
float theta2 = 2. * atan(exp(-aZCandidate.second->getRecoElectron()->eta()));
float phi2 = aZCandidate.second->getRecoElectron()->phi();
float x2 = aZCandidate.second->getRecoElectron()->superCluster()->energy() * sin(theta2) * cos(phi2);
float y2 = aZCandidate.second->getRecoElectron()->superCluster()->energy() * sin(theta2) * sin(phi2);
float z2 = aZCandidate.second->getRecoElectron()->superCluster()->energy() * cos(theta2);
float mod2 = sqrt(x2 * x2 + y2 * y2 + z2 * z2);
return (x1 * x2 + y1 * y2 + z1 * z2) / (mod1 * mod2);
}
//--------------------------------------------
float ZeeKinematicTools::calculateZMassWithCorrectedElectrons_noTK(
const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate,
float ele1EnergyCorrection,
float ele2EnergyCorrection) {
return ZIterativeAlgorithmWithFit::invMassCalc(
aZCandidate.first->getRecoElectron()->superCluster()->energy() / ele1EnergyCorrection,
aZCandidate.first->getRecoElectron()->superCluster()->eta(),
aZCandidate.first->getRecoElectron()->superCluster()->phi(),
aZCandidate.second->getRecoElectron()->superCluster()->energy() / ele2EnergyCorrection,
aZCandidate.second->getRecoElectron()->superCluster()->eta(),
aZCandidate.second->getRecoElectron()->superCluster()->phi());
}
//--------------------------------------------
float ZeeKinematicTools::calculateZMassWithCorrectedElectrons_withTK(
const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate,
float ele1EnergyCorrection,
float ele2EnergyCorrection) {
return ZIterativeAlgorithmWithFit::invMassCalc(
aZCandidate.first->getRecoElectron()->superCluster()->energy() / ele1EnergyCorrection,
aZCandidate.first->getRecoElectron()->eta(),
aZCandidate.first->getRecoElectron()->phi(),
aZCandidate.second->getRecoElectron()->superCluster()->energy() / ele2EnergyCorrection,
aZCandidate.second->getRecoElectron()->eta(),
aZCandidate.second->getRecoElectron()->phi());
}
//--------------------------------------------
float ZeeKinematicTools::calculateZMass_noTK(
const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate) {
return ZIterativeAlgorithmWithFit::invMassCalc(aZCandidate.first->getRecoElectron()->superCluster()->energy(),
aZCandidate.first->getRecoElectron()->superCluster()->eta(),
aZCandidate.first->getRecoElectron()->superCluster()->phi(),
aZCandidate.second->getRecoElectron()->superCluster()->energy(),
aZCandidate.second->getRecoElectron()->superCluster()->eta(),
aZCandidate.second->getRecoElectron()->superCluster()->phi());
}
//--------------------------------------------
float ZeeKinematicTools::calculateZMass_withTK(
const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate) {
return ZIterativeAlgorithmWithFit::invMassCalc(aZCandidate.first->getRecoElectron()->superCluster()->energy(),
aZCandidate.first->getRecoElectron()->eta(),
aZCandidate.first->getRecoElectron()->phi(),
aZCandidate.second->getRecoElectron()->superCluster()->energy(),
aZCandidate.second->getRecoElectron()->eta(),
aZCandidate.second->getRecoElectron()->phi());
}
//--------------------------------------------
float ZeeKinematicTools::calculateZRapidity(const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate) {
TLorentzVector ele1LV(aZCandidate.first->getRecoElectron()->px(),
aZCandidate.first->getRecoElectron()->py(),
aZCandidate.first->getRecoElectron()->pz(),
aZCandidate.first->getRecoElectron()->superCluster()->energy());
TLorentzVector ele2LV(aZCandidate.second->getRecoElectron()->px(),
aZCandidate.second->getRecoElectron()->py(),
aZCandidate.second->getRecoElectron()->pz(),
aZCandidate.second->getRecoElectron()->superCluster()->energy());
return (ele1LV + ele2LV).Rapidity();
}
//--------------------------------------------
float ZeeKinematicTools::calculateZEta(const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate) {
TLorentzVector ele1LV(aZCandidate.first->getRecoElectron()->px(),
aZCandidate.first->getRecoElectron()->py(),
aZCandidate.first->getRecoElectron()->pz(),
aZCandidate.first->getRecoElectron()->superCluster()->energy());
TLorentzVector ele2LV(aZCandidate.second->getRecoElectron()->px(),
aZCandidate.second->getRecoElectron()->py(),
aZCandidate.second->getRecoElectron()->pz(),
aZCandidate.second->getRecoElectron()->superCluster()->energy());
return (ele1LV + ele2LV).Eta();
}
//--------------------------------------------
float ZeeKinematicTools::calculateZTheta(const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate) {
TLorentzVector ele1LV(aZCandidate.first->getRecoElectron()->px(),
aZCandidate.first->getRecoElectron()->py(),
aZCandidate.first->getRecoElectron()->pz(),
aZCandidate.first->getRecoElectron()->superCluster()->energy());
TLorentzVector ele2LV(aZCandidate.second->getRecoElectron()->px(),
aZCandidate.second->getRecoElectron()->py(),
aZCandidate.second->getRecoElectron()->pz(),
aZCandidate.second->getRecoElectron()->superCluster()->energy());
return (ele1LV + ele2LV).Theta();
}
//--------------------------------------------
float ZeeKinematicTools::calculateZPhi(const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate) {
TLorentzVector ele1LV(aZCandidate.first->getRecoElectron()->px(),
aZCandidate.first->getRecoElectron()->py(),
aZCandidate.first->getRecoElectron()->pz(),
aZCandidate.first->getRecoElectron()->superCluster()->energy());
TLorentzVector ele2LV(aZCandidate.second->getRecoElectron()->px(),
aZCandidate.second->getRecoElectron()->py(),
aZCandidate.second->getRecoElectron()->pz(),
aZCandidate.second->getRecoElectron()->superCluster()->energy());
return (ele1LV + ele2LV).Phi();
}
//--------------------------------------------
float ZeeKinematicTools::calculateZPt(const std::pair<calib::CalibElectron*, calib::CalibElectron*>& aZCandidate) {
TLorentzVector ele1LV(aZCandidate.first->getRecoElectron()->px(),
aZCandidate.first->getRecoElectron()->py(),
aZCandidate.first->getRecoElectron()->pz(),
aZCandidate.first->getRecoElectron()->superCluster()->energy());
TLorentzVector ele2LV(aZCandidate.second->getRecoElectron()->px(),
aZCandidate.second->getRecoElectron()->py(),
aZCandidate.second->getRecoElectron()->pz(),
aZCandidate.second->getRecoElectron()->superCluster()->energy());
return (ele1LV + ele2LV).Pt();
}
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