TElectronIsEMSelector.cxx

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
/********************************************************************
 
NAME:     TElectronIsEMSelector.cxx
PACKAGE:  PhysicsAnalysis/ElectronPhotonID/ElectronPhotonSelectorTools
 
*********************************************************************/
 
#include "TElectronIsEMSelector.h"
#include <cmath>
 
namespace{
  const int SummaryTypeNotSet = -1;
}
 
Root::TElectronIsEMSelector::TElectronIsEMSelector(const char* name) :
  asg::AsgMessaging(std::string(name)),
  m_isEMMask(0), //All will pass if not specified
  m_useTRTOutliers(true),
  m_useTRTXenonHits(false),
  m_cutPositionClusterEtaRange_Electron(0),
  m_cutPositionConversionMatch_Electron(0),
  m_cutPositionClusterHadronicLeakage_Electron(0),
  m_cutPositionClusterMiddleEnergy_Electron(0),
  m_cutPositionClusterMiddleEratio37_Electron(0),
  m_cutPositionClusterMiddleEratio33_Electron(0),
  m_cutPositionClusterMiddleWidth_Electron(0),
  m_cutPositionClusterBackEnergyFraction_Electron(0),
  m_cutPositionClusterStripsEratio_Electron(0),
  m_cutPositionClusterStripsDeltaEmax2_Electron(0),
  m_cutPositionClusterStripsDeltaE_Electron(0),
  m_cutPositionClusterStripsWtot_Electron(0),
  m_cutPositionClusterStripsFracm_Electron(0),
  m_cutPositionClusterStripsWeta1c_Electron(0),
  m_cutPositionClusterStripsDEmaxs1_Electron(0),
  m_cutPositionTrackBlayer_Electron(0),
  m_cutPositionTrackPixel_Electron(0),
  m_cutPositionTrackSi_Electron(0),
  m_cutPositionTrackA0_Electron(0),
  m_cutPositionTrackMatchEta_Electron(0),
  m_cutPositionTrackMatchPhi_Electron(0),
  m_cutPositionTrackMatchEoverP_Electron(0),
  m_cutPositionTrackTRTeProbabilityHT_Electron(0),
  m_cutPositionTrackTRThits_Electron(0),
  m_cutPositionTrackTRTratio_Electron(0),
  m_cutPositionTrackTRTratio90_Electron(0),
  m_cutPositionTrackA0Tight_Electron(0),
  m_cutPositionTrackMatchEtaTight_Electron(0),
  m_cutPositionIsolation_Electron(0),
  m_cutPositionClusterIsolation_Electron(0),
  m_cutPositionTrackIsolation_Electron(0),
  m_cutNameClusterEtaRange_Electron("ClusterEtaRange_Electron"),
  m_cutNameConversionMatch_Electron("ConversionMatch_Electron"),
  m_cutNameClusterHadronicLeakage_Electron("ClusterHadronicLeakage_Electron"),
  m_cutNameClusterMiddleEnergy_Electron("ClusterMiddleEnergy_Electron"),
  m_cutNameClusterMiddleEratio37_Electron("ClusterMiddleEratio37_Electron"),
  m_cutNameClusterMiddleEratio33_Electron("ClusterMiddleEratio33_Electron"),
  m_cutNameClusterMiddleWidth_Electron("ClusterMiddleWidth_Electron"),
  m_cutNameClusterBackEnergyFraction_Electron("ClusterBackEnergyFraction_Electron"),
  m_cutNameClusterStripsEratio_Electron("ClusterStripsEratio_Electron"),
  m_cutNameClusterStripsDeltaEmax2_Electron("ClusterStripsDeltaEmax2_Electron"),
  m_cutNameClusterStripsDeltaE_Electron("ClusterStripsDeltaE_Electron"),
  m_cutNameClusterStripsWtot_Electron("ClusterStripsWtot_Electron"),
  m_cutNameClusterStripsFracm_Electron("ClusterStripsFracm_Electron"),
  m_cutNameClusterStripsWeta1c_Electron("ClusterStripsWeta1c_Electron"),
  m_cutNameClusterStripsDEmaxs1_Electron("ClusterStripsDEmaxs1_Electron"),
  m_cutNameTrackBlayer_Electron("TrackBlayer_Electron"),
  m_cutNameTrackPixel_Electron("TrackPixel_Electron"),
  m_cutNameTrackSi_Electron("TrackSi_Electron"),
  m_cutNameTrackA0_Electron("TrackA0_Electron"),
  m_cutNameTrackMatchEta_Electron("TrackMatchEta_Electron"),
  m_cutNameTrackMatchPhi_Electron("TrackMatchPhi_Electron"),
  m_cutNameTrackMatchEoverP_Electron("TrackMatchEoverP_Electron"),
  m_cutNameTrackTRTeProbabilityHT_Electron("TrackTRTeProbabilityHT_Electron"),
  m_cutNameTrackTRThits_Electron("TrackTRThits_Electron"),
  m_cutNameTrackTRTratio_Electron("TrackTRTratio_Electron"),
  m_cutNameTrackTRTratio90_Electron("TrackTRTratio90_Electron"),
  m_cutNameTrackA0Tight_Electron("TrackA0Tight_Electron"),
  m_cutNameTrackMatchEtaTight_Electron("TrackMatchEtaTight_Electron"),
  m_cutNameIsolation_Electron("Isolation_Electron"),
  m_cutNameClusterIsolation_Electron("ClusterIsolation_Electron"),
  m_cutNameTrackIsolation_Electron("TrackIsolation_Electron")
{
  m_cutPositionClusterMiddleEratio37_Electron = 0;
  m_cutPositionClusterMiddleEratio33_Electron = 0;
  m_cutPositionClusterMiddleWidth_Electron = 0;
  m_cutPositionClusterBackEnergyFraction_Electron = 0;
  m_cutPositionClusterStripsEratio_Electron = 0;
  m_cutPositionClusterStripsDeltaEmax2_Electron = 0;
  m_cutPositionClusterStripsDeltaE_Electron = 0;
  m_cutPositionClusterStripsWtot_Electron = 0;
  m_cutPositionClusterStripsFracm_Electron = 0;
  m_cutPositionClusterStripsWeta1c_Electron = 0;
  m_cutPositionClusterStripsDEmaxs1_Electron = 0;
  m_cutPositionTrackBlayer_Electron = 0;
  m_cutPositionTrackPixel_Electron = 0;
  m_cutPositionTrackSi_Electron = 0;
  m_cutPositionTrackA0_Electron = 0;
  m_cutPositionTrackMatchEta_Electron = 0;
  m_cutPositionTrackMatchPhi_Electron = 0;
  m_cutPositionTrackMatchEoverP_Electron = 0;
  m_cutPositionTrackTRTeProbabilityHT_Electron = 0;
  m_cutPositionTrackTRThits_Electron = 0;
  m_cutPositionTrackTRTratio_Electron = 0;
  m_cutPositionTrackTRTratio90_Electron = 0;
  m_cutPositionTrackA0Tight_Electron = 0;
  m_cutPositionTrackMatchEtaTight_Electron = 0;
  m_cutPositionIsolation_Electron = 0;
  m_cutPositionClusterIsolation_Electron = 0;
  m_cutPositionTrackIsolation_Electron = 0;
}
 
Root::TElectronIsEMSelector::~TElectronIsEMSelector()
= default;
 
StatusCode Root::TElectronIsEMSelector::initialize()
{
 
    StatusCode sc(StatusCode::SUCCESS);
 
  // --------------------------------------------------------------------------
  // Register the cuts and check that the registration worked:
  // NOTE: THE ORDER IS IMPORTANT!!! Cut0 corresponds to bit 0, Cut1 to bit 1,...
  m_cutPositionClusterEtaRange_Electron =
    m_acceptInfo.addCut(m_cutNameClusterEtaRange_Electron, "Electron within eta range");
  if (m_cutPositionClusterEtaRange_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionConversionMatch_Electron =
    m_acceptInfo.addCut(m_cutNameConversionMatch_Electron, "Electron matches a photon with AR > LOOSE");
  if (m_cutPositionConversionMatch_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterHadronicLeakage_Electron =
    m_acceptInfo.addCut(m_cutNameClusterHadronicLeakage_Electron, "Had leakage < Cut");
  if (m_cutPositionClusterHadronicLeakage_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterMiddleEnergy_Electron =
    m_acceptInfo.addCut(m_cutNameClusterMiddleEnergy_Electron, "Et <0  Cut");
  if (m_cutPositionClusterMiddleEnergy_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterMiddleEratio37_Electron =
    m_acceptInfo.addCut(m_cutNameClusterMiddleEratio37_Electron, "E237/377 > Cut");
  if (m_cutPositionClusterMiddleEratio37_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterMiddleEratio33_Electron =
    m_acceptInfo.addCut(m_cutNameClusterMiddleEratio33_Electron, "E233/E237 > Cut");
  if (m_cutPositionClusterMiddleEratio33_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterMiddleWidth_Electron =
    m_acceptInfo.addCut(m_cutNameClusterMiddleWidth_Electron, "Weta2 < Cut");
  if (m_cutPositionClusterMiddleWidth_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterBackEnergyFraction_Electron =
    m_acceptInfo.addCut(m_cutNameClusterBackEnergyFraction_Electron, "f3 < Cut");
  if (m_cutPositionClusterBackEnergyFraction_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterStripsEratio_Electron =
    m_acceptInfo.addCut(m_cutNameClusterStripsEratio_Electron, "No Cut");
  if (m_cutPositionClusterStripsEratio_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterStripsDeltaEmax2_Electron =
    m_acceptInfo.addCut(m_cutNameClusterStripsDeltaEmax2_Electron, "emax2/(1000.+0.009*et) < Cut, where emax2 is the energy of the second max");
  if (m_cutPositionClusterStripsDeltaEmax2_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterStripsDeltaE_Electron =
    m_acceptInfo.addCut(m_cutNameClusterStripsDeltaE_Electron, "difference between 2nd maximium and first minimum < Cut");
  if (m_cutPositionClusterStripsDeltaE_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterStripsWtot_Electron =
    m_acceptInfo.addCut(m_cutNameClusterStripsWtot_Electron, "Total shower width in first sampling < Cut");
  if (m_cutPositionClusterStripsWtot_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterStripsFracm_Electron =
    m_acceptInfo.addCut(m_cutNameClusterStripsFracm_Electron, "Fracm (aka Fside) < Cut");
  if (m_cutPositionClusterStripsFracm_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterStripsWeta1c_Electron =
    m_acceptInfo.addCut(m_cutNameClusterStripsWeta1c_Electron, "Shower width in 3 strips in first sampling < Cut");
  if (m_cutPositionClusterStripsWeta1c_Electron < 0) sc = StatusCode::FAILURE;
 
  int voidcutpos = m_acceptInfo.addCut("VOID1", "No Cut"); // bit 14 is not used
  if (voidcutpos < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterStripsDEmaxs1_Electron =
    m_acceptInfo.addCut(m_cutNameClusterStripsDEmaxs1_Electron, "Difference between first and second max > Cut");
  if (m_cutPositionClusterStripsDEmaxs1_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackBlayer_Electron =
    m_acceptInfo.addCut(m_cutNameTrackBlayer_Electron, "nBL > 0, maybe including outliers and using expectHitInBLayer");
  if (m_cutPositionTrackBlayer_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackPixel_Electron =
    m_acceptInfo.addCut(m_cutNameTrackPixel_Electron, "nPi > Cut, maybe including outliers");
  if (m_cutPositionTrackPixel_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackSi_Electron =
    m_acceptInfo.addCut(m_cutNameTrackSi_Electron, "nSi > Cut, maybe including outliers");
  if (m_cutPositionTrackSi_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackA0_Electron =
    m_acceptInfo.addCut(m_cutNameTrackA0_Electron, "A0 (aka d0) wrt beam spot < Cut");
  if (m_cutPositionTrackA0_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackMatchEta_Electron =
    m_acceptInfo.addCut(m_cutNameTrackMatchEta_Electron, "Track match deta in 1st sampling < Cut");
  if (m_cutPositionTrackMatchEta_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackMatchPhi_Electron =
    m_acceptInfo.addCut(m_cutNameTrackMatchPhi_Electron, "Track match dphi in 2nd sampling < Cut");
  if (m_cutPositionTrackMatchPhi_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackMatchEoverP_Electron =
    m_acceptInfo.addCut(m_cutNameTrackMatchEoverP_Electron, "E/p < Cut");
  if (m_cutPositionTrackMatchEoverP_Electron < 0) sc = StatusCode::FAILURE;
 
  //  voidcutpos = m_acceptInfo.addCut("VOID2", "No Cut"); // bit 23 is not used
  //if (voidcutpos < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackTRTeProbabilityHT_Electron =
    m_acceptInfo.addCut(m_cutNameTrackTRTeProbabilityHT_Electron, "eProbabilityHT TRT hits > Cut");
  if (m_cutPositionTrackTRTeProbabilityHT_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackTRThits_Electron =
    m_acceptInfo.addCut(m_cutNameTrackTRThits_Electron, "number of TRT hits > Cut");
  if (m_cutPositionTrackTRThits_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackTRTratio_Electron =
    m_acceptInfo.addCut(m_cutNameTrackTRTratio_Electron, "ration of high to all TRT hits > Cut");
  if (m_cutPositionTrackTRTratio_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackTRTratio90_Electron =
    m_acceptInfo.addCut(m_cutNameTrackTRTratio90_Electron, "ration of high to all TRT hits > Cut, 90% cut, (only for old tight menu)");
  if (m_cutPositionTrackTRTratio90_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackA0Tight_Electron =
    m_acceptInfo.addCut(m_cutNameTrackA0Tight_Electron, "tight cut on d0 for old tight menu (not used otherwis)");
  if (m_cutPositionTrackA0Tight_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackMatchEtaTight_Electron =
    m_acceptInfo.addCut(m_cutNameTrackMatchEtaTight_Electron, "tight cut on deta only for old tight menu");
  if (m_cutPositionTrackMatchEtaTight_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionIsolation_Electron =
    m_acceptInfo.addCut(m_cutNameIsolation_Electron, "Track and calorimetric isolation");
  if (m_cutPositionIsolation_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionClusterIsolation_Electron =
    m_acceptInfo.addCut(m_cutNameClusterIsolation_Electron, "calorimetric isolation only");
  if (m_cutPositionClusterIsolation_Electron < 0) sc = StatusCode::FAILURE;
 
  m_cutPositionTrackIsolation_Electron =
    m_acceptInfo.addCut(m_cutNameTrackIsolation_Electron, "track isolation only");
  if (m_cutPositionTrackIsolation_Electron < 0) sc = StatusCode::FAILURE;
 
  if (sc == StatusCode::FAILURE) {
    ATH_MSG_ERROR("Exceeded the number of allowed cuts in TElectronIsEMSelector");
  }
 
  return sc;
}
 
asg::AcceptData Root::TElectronIsEMSelector::fillAccept(unsigned int isEM) const
{
  asg::AcceptData acceptData(&m_acceptInfo);
  for (int i = 0; i < 32; i++) {
    const unsigned int mask = (0x1u << i) & m_isEMMask;
    acceptData.setCutResult(i, (isEM & mask) == 0);
  }
  return acceptData;
}
 
//=============================================================================
// Calculate the actual accept of each cut individually.
//=============================================================================
asg::AcceptData Root::TElectronIsEMSelector::accept(
    // eta position in second sampling
    float eta2,
    // transverse energy in calorimeter (using eta position in second sampling)
    double et,
    // E(3*3) in 2nd sampling   e233
    float Reta,
    // E(3*7) in 2nd sampling  e237
    float Rphi,
    // transverse energy in 1st scintillator of hadronic calorimeter
    float Rhad1,
    // transverse energy in hadronic calorimeter
    float Rhad,
    // E(7*7) in 2nd sampling
    float e277,
    // shower width in 3 strips in 1st sampling
    float weta1c,
    // shower width in 2nd sampling
    float weta2c,
    // fraction of energy reconstructed in the 1st sampling
    float f1,
    // E of 2nd max between max and min in strips
    float emax2,
    // E of 1st max in strips
    float Eratio,
    // E(min) in strips
    float DeltaE,
    // total shower width in 1st sampling
    float wtot,
    // E(+/-3)-E(+/-1)/E(+/-1)
    float fracm,
    // fraction of energy reconstructed in the 3rd sampling
    float f3,
    // is effective number of BL hits+outliers at least 1?
    bool passBLayerRequirement,
    // number of pixel hits + dead sensors
    int nPixHitsPlusDeadSensors,
    // number of silicon hits + dead sensors
    int nSiHitsPlusDeadSensors,
    // TRT hits
    int nTRThigh,
    int nTRThighOutliers,
    int nTRT,
    int nTRTOutliers,
    int nTRTXenonHits,
    float TRT_PID,
    // transverse impact parameter
    float trackd0,
    // Delta eta,phi matching
    float deltaeta,
    float deltaphi,
    // E/p
    double ep) const
{
 
  // -----------------------------------------------------------
  // Do the actual selection
 
    unsigned int isEM = calcIsEm(eta2,
                                 et,
                                 Reta, // e233,
                                 Rphi, //e237,
                                 Rhad1, 
                                 Rhad, //ethad,
                                 e277,
                                 weta1c,
                                 weta2c,
                                 f1,
                                 emax2,
                                 Eratio, //emax,
                                 DeltaE, //emin,
                                 wtot,
                                 fracm,
                                 f3,
                                 passBLayerRequirement,
                                 nPixHitsPlusDeadSensors,
                                 nSiHitsPlusDeadSensors,
                                 nTRThigh,
                                 nTRThighOutliers,
                                 nTRT,
                                 nTRTOutliers,
                                 nTRTXenonHits,
                                 TRT_PID,
                                 trackd0,
                                 deltaeta,
                                 deltaphi,
                                 ep);
 
  return fillAccept(isEM);
 
}
 
// return the isem
unsigned int
Root::TElectronIsEMSelector::calcIsEm(
  // eta position in second sampling
  float eta2,
  // transverse energy in calorimeter (using eta position in second sampling)
  double et,
  // E(3*3) in 2nd sampling e233
  float Reta,
  // E(3*7) in 2nd sampling e237
  float Rphi,
  // transverse energy in 1st scintillator of hadronic calorimeter
  float Rhad1,
  // transverse energy in hadronic calorimeter
  float Rhad,
  // E(7*7) in 2nd sampling
  float e277,
  // shower width in 3 strips in 1st sampling
  float weta1c,
  // shower width in 2nd sampling
  float weta2c,
  // fraction of energy reconstructed in the 1st sampling
  float f1,
  // E of 2nd max between max and min in strips
  float emax2,
  // E of 1st max in strips
  float Eratio, // replaced emax,
  // E(min) in strips
  float DeltaE, // emin,
  // total shower width in 1st sampling
  float wtot,
  // E(+/-3)-E(+/-1)/E(+/-1)
  float fracm,
  // fraction of energy reconstructed in the 3rd sampling
  float f3,
  // is effective number of BL hits+outliers at least 1?
  bool passBLayerRequirement,
  // number of pixel hits + dead sensors
  int nPixHitsPlusDeadSensors,
  // number of silicon hits + dead sensors
  int nSiHitsPlusDeadSensors,
  // TRT hits
  int nTRThigh,
  int nTRThighOutliers,
  int nTRT,
  int nTRTOutliers,
  int nTRTXenonHits,
  float TRT_PID,
  // transverse impact parameter
  float trackd0,
  // Delta eta,phi matching
  float deltaeta,
  float deltaphi,
  // E/p
  double ep) const
{
  unsigned int iflag = calocuts_electrons(eta2,
                                          et,
                                          Reta,  // e233,
                                          Rphi,  // e237,
                                          Rhad1, // ethad1,
                                          Rhad,  // ethad,
                                          e277,
                                          weta1c,
                                          weta2c,
                                          f1,
                                          emax2,
                                          Eratio, // emax,
                                          DeltaE, // emin,
                                          wtot,
                                          fracm,
                                          f3,
                                          0);
 
  iflag = TrackCut(eta2,
                   et,
                   passBLayerRequirement,
                   nPixHitsPlusDeadSensors,
                   nSiHitsPlusDeadSensors,
                   nTRThigh,
                   nTRThighOutliers,
                   nTRT,
                   nTRTOutliers,
                   nTRTXenonHits,
                   TRT_PID,
                   trackd0,
                   deltaeta,
                   deltaphi,
                   ep,
                   iflag);
 
  return iflag;
}
 
unsigned int
Root::TElectronIsEMSelector::calocuts_electrons(
  // eta position in second sampling
  float eta2,
  // transverse energy in calorimeter (using eta position in second sampling)
  double et,
  // E(3*3) in 2nd sampling  233
  float Reta,
  // E(3*7) in 2nd sampling
  float Rphi,
  // transverse energy in 1st scintillator of hadronic calorimeter
  float Rhad1,
  // transverse energy in hadronic calorimeter
  float Rhad,
  // E(7*7) in 2nd sampling
  float e277,
  // shower width in 3 strips in 1st sampling
  float weta1c,
  // shower width in 2nd sampling
  float weta2c,
  // fraction of energy reconstructed in the 1st sampling
  float f1,
  // E of 2nd max between max and min in strips
  float emax2,
  // E of 1st max in strips (emax)
  float Eratio,
  // E(min) in strips (emin)
  float DeltaE,
  // total shower width in 1st sampling
  float wtot,
  // E(+/-3)-E(+/-1)/E(+/-1)
  float fracm,
  // fraction of energy reconstructed in the 3rd sampling
  float f3,
  // the starting isEM (should be 0 if new)
  unsigned int iflag,
  // trigETthr : threshold in ET to apply the cuts at trigger level
  double trigEtTh) const
{
  // modifiy et when dealing with trigger
  // to be sure that it will take the correct bin (VD)
  if(trigEtTh > 0) et = trigEtTh*1.01;
  std::vector<int> bins =FindEtEtaBin(et,eta2);
  int ibin_et= bins.at(0);
  int ibin_eta= bins.at(1);
  int ibin_combined= bins.at(2);
 
  // check eta range
  if (eta2 > 2.47) {
    iflag |= (0x1 << egammaPID::ClusterEtaRange_Electron);
  }
 
  //Negative energy. For legacy fill the Middle Energy less than 0 , should be equivalent
  if (e277 < 0) {
    iflag |= ( 0x1 << egammaPID::ClusterMiddleEnergy_Electron) ;
  }
 
  // check if index is defined
  if (ibin_eta>=0 && ibin_et>=0 &&  ibin_combined>=0) {
 
    // hadronic leakage
    if (CheckVar(m_cutHadLeakage, 4)) {
      if (eta2 < 0.8) {
        if (Rhad1 > m_cutHadLeakage[ibin_combined])
          iflag |= (0x1 << egammaPID::ClusterHadronicLeakage_Electron);
      } else if (eta2 >= 0.8 && eta2 < 1.37) {
        if (Rhad > m_cutHadLeakage[ibin_combined])
          iflag |= (0x1 << egammaPID::ClusterHadronicLeakage_Electron);
      } else {
        if (Rhad1 > m_cutHadLeakage[ibin_combined])
          iflag |= (0x1 << egammaPID::ClusterHadronicLeakage_Electron);
      }
    }
 
    // cut on f3
    if (CheckVar(m_cutF3, 4)) {
      if (f3 > m_cutF3[ibin_combined]) {
        iflag |= (0x1 << egammaPID::ClusterBackEnergyFraction_Electron);
      }
    }
 
    // cuts on 2nd sampling
    if (CheckVar(m_cutReta37, 4)) {
      if (Reta <= m_cutReta37[ibin_combined])
        iflag |= (0x1 << egammaPID::ClusterMiddleEratio37_Electron);
    }
    // -------------------------------
    if (CheckVar(m_cutRphi33, 4)) {
      if (Rphi <= m_cutRphi33[ibin_combined])
        iflag |= (0x1 << egammaPID::ClusterMiddleEratio33_Electron);
    }
    // -------------------------------
    // check Weta2c
    if (CheckVar(m_cutWeta2c, 4)) {
      if (weta2c > m_cutWeta2c[ibin_combined])
        iflag |= (0x1 << egammaPID::ClusterMiddleWidth_Electron);
    }
    // cuts on 1st sampling
    // we remove also crack
    if (f1 > m_cutF1[0] && eta2 < 2.37 && (eta2 < 1.37 || eta2 > 1.52)) {
 
      // check Rmax2
      if (CheckVar(m_cutDeltaEmax2, 4)) {
        // parametrizatiion of emax2
        double deltaemax2 = emax2 / (1000. + 0.009 * et);
        if (emax2 > 0. && deltaemax2 >= m_cutDeltaEmax2[ibin_combined])
          iflag |= (0x1 << egammaPID::ClusterStripsDeltaEmax2_Electron);
      }
 
      // check Delta E
      if (CheckVar(m_cutDeltaE, 4)) {
        if (emax2 > 0. && DeltaE >= m_cutDeltaE[ibin_combined])
          iflag |= (0x1 << egammaPID::ClusterStripsDeltaE_Electron);
      }
 
      // check DEmaxs1
      if (CheckVar(m_cutDEmaxs1, 4)) {
        if (Eratio <= m_cutDEmaxs1[ibin_combined])
          iflag |= (0x1 << egammaPID::ClusterStripsDEmaxs1_Electron);
      }
 
      // check Wtot
      if (CheckVar(m_cutWtot, 4)) {
        if (wtot >= m_cutWtot[ibin_combined])
          iflag |= (0x1 << egammaPID::ClusterStripsWtot_Electron);
      }
 
      // check Fside
      if (CheckVar(m_cutFracm, 4)) {
        if (fracm >= m_cutFracm[ibin_combined])
          iflag |= (0x1 << egammaPID::ClusterStripsFracm_Electron);
      }
 
      // check Weta1c
      if (CheckVar(m_cutWeta1c, 4)) {
        if (weta1c >= m_cutWeta1c[ibin_combined])
          iflag |= (0x1 << egammaPID::ClusterStripsWeta1c_Electron);
      }
    }
  }
 
  return iflag;
}
 
unsigned int
Root::TElectronIsEMSelector::TrackCut(
  // eta of the cluster in the 2nd sampling
  float eta2,
  // transverse energy in calorimeter (using eta position in second sampling)
  double et,
  // is effective number of BL hits+outliers at least 1?
  bool passBLayerRequirement,
  // number of pixel hits + dead sensors
  int nPixHitsPlusDeadSensors,
  // number of silicon hits + dead sensors
  int nSiHitsPlusDeadSensors,
 
  // TRT hits
  int nTRThigh,
  int nTRThighOutliers,
  int nTRT,
  int nTRTOutliers,
  int nTRTXenonHits,
  float TRT_PID,
  // transverse impact parameter
  float trackd0,
  // Delta eta,phi matching
  float deltaeta,
  float deltaphi,
  // E/p
  double ep,
  unsigned int iflag) const
{
  // check the bin number
  std::vector<int> bins =FindEtEtaBin(et,eta2);
  int ibin_eta= bins.at(1);
  int ibin_combined= bins.at(2);
 
  if (ibin_eta >= 0 && ibin_combined >= 0) {
    // Track quality cuts
    // cuts on number of b-layer hits
    if (CheckVar(m_cutBL, 1) && m_cutBL[ibin_eta] == 1 &&
        !passBLayerRequirement) {
      iflag |= (0x1 << egammaPID::TrackBlayer_Electron);
    }
    // cuts on number of pixel hits
    if (CheckVar(m_cutPi, 1)) {
      if (nPixHitsPlusDeadSensors < m_cutPi[ibin_eta])
        iflag |= (0x1 << egammaPID::TrackPixel_Electron);
    }
    // cuts on number of precision hits
    if (CheckVar(m_cutSi, 1)) {
      if (nSiHitsPlusDeadSensors < m_cutSi[ibin_eta])
        iflag |= (0x1 << egammaPID::TrackSi_Electron);
    }
    // cuts on transverse impact parameter
    if (CheckVar(m_cutA0, 1)) {
      if (trackd0 > m_cutA0[ibin_eta])
        iflag |= (0x1 << egammaPID::TrackA0_Electron);
    }
    // cuts on transverse impact parameter for tight selection
    if (CheckVar(m_cutA0Tight, 1)) {
      if (trackd0 > m_cutA0Tight[ibin_eta])
        iflag |= (0x1 << egammaPID::TrackA0Tight_Electron);
    }
 
    // matching (eta,phi) and energy-momentum
    // cut on Delta Eta and Delta Phi
    deltaeta = std::abs(deltaeta);
 
    if (CheckVar(m_cutDeltaEta, 4)) {
      if (deltaeta > m_cutDeltaEta[ibin_combined])
        iflag |= (0x1 << egammaPID::TrackMatchEta_Electron);
    }
    if (CheckVar(m_cutminDeltaPhi, 4)) {
      if (deltaphi < m_cutminDeltaPhi[ibin_combined])
        iflag |= (0x1 << egammaPID::TrackMatchPhi_Electron);
    }
    if (CheckVar(m_cutmaxDeltaPhi, 4)) {
      if (deltaphi > m_cutmaxDeltaPhi[ibin_combined])
        iflag |= (0x1 << egammaPID::TrackMatchPhi_Electron);
    }
    // cut on Delta Eta for Tight selection
    if (CheckVar(m_cutDeltaEtaTight, 4)) {
      if (deltaeta > m_cutDeltaEtaTight[ibin_combined])
        iflag |= (0x1 << egammaPID::TrackMatchEtaTight_Electron);
    }
 
    // cut on E/p
    if (CheckVar(m_cutminEp, 4) && CheckVar(m_cutmaxEp, 4)) {
      if (ep < m_cutminEp[ibin_combined] || ep > m_cutmaxEp[ibin_combined])
        iflag |= (0x1 << egammaPID::TrackMatchEoverP_Electron);
    }
  }
 
  // use of Transition Radiation Tracker
  double rTRT = 0;
  int nTRTTotal = 0;
  if (m_useTRTOutliers) {
    if (m_useTRTXenonHits && (nTRTXenonHits != SummaryTypeNotSet))
      nTRTTotal = nTRTXenonHits;
    else
      nTRTTotal = nTRT + nTRTOutliers;
 
    rTRT = (nTRTTotal) > 0
             ? ((double)(nTRThigh + nTRThighOutliers) / (nTRTTotal))
             : 0.;
 
  } else {
    rTRT = (nTRT) > 0 ? ((double)(nTRThigh) / (nTRT)) : 0.;
    nTRTTotal = nTRT;
  }
 
  double DeltaNum = -100;
  // coefficients to aproximate Number of TRT hits:
  // zone 0: eta<0.1 parabolic
  const double a0 = 33.14 ; const double b0 = -129.1 ; const double c0 = 1455.;
  // zone 1: eta<0.625 cubic
  const double a1 = 29.42 ; const double b1 = 27.93 ; const double c1 = -89.96; const double d1 = 91.51;
  // zone 2: eta<1.07 parabolic
  const double a2 = 196.3; const double b2 = -403.; const double c2 = 230.2;
  // zone 3: eta <1.304 linear
  const double a3 = -10.59; const double b3 = 37.29;
  // zone 4: eta <1.752 cubic
  const double a4 = -640.9; const double b4 = 1323.; const double c4 = -851.8; const double d4 = 180.8;
  // zone 5: eta <2.0 linear
  const double a5 = 159.8; const double b5 = -70.9;
 
  int ibin_eta_TRT = -1;
  //We have an array
  //[0.1; 0.625; 1.07; 1.304; 1.752; 2.0]
  //Above 2.0 we do not have a TRT ,
  //so valid values will be 0 -5 in the above case
  if (!m_cutBinEta_TRT.empty()&& eta2<m_cutBinEta_TRT.back()) {
    const int numBins = (m_cutBinEta_TRT.size()-1);
    int ibinEta = 0;
    while (ibinEta < numBins && eta2 > m_cutBinEta_TRT[ibinEta]) {
      ++ibinEta;
    }
    ibin_eta_TRT = ibinEta;
  }
 
  if (ibin_eta_TRT >= 0) {
    switch (ibin_eta_TRT) {
      case 0: {
        DeltaNum = nTRTTotal - (a0 + b0 * eta2 + c0 * eta2 * eta2);
      } break;
      case 1: {
        DeltaNum = nTRTTotal - (a1 + b1 * eta2 + c1 * eta2 * eta2 +
                                d1 * eta2 * eta2 * eta2);
      } break;
      case 2: {
        DeltaNum = nTRTTotal - (a2 + b2 * eta2 + c2 * eta2 * eta2);
      } break;
      case 3: {
        DeltaNum = nTRTTotal - (a3 + b3 * eta2);
      } break;
      case 4: {
        DeltaNum = nTRTTotal - (a4 + b4 * eta2 + c4 * eta2 * eta2 +
                                d4 * eta2 * eta2 * eta2);
      } break;
      case 5: {
        DeltaNum = nTRTTotal - (a5 + b5 * eta2);
      }
    }
 
    if (CheckVar(m_cutNumTRT, 2)) {
      if (DeltaNum < m_cutNumTRT[ibin_eta_TRT]) {
        iflag |= (0x1 << egammaPID::TrackTRThits_Electron);
      }
    }
 
    int ibin_et_TRT = -1;
    // loop on ET range
    if (!m_cutBinET_TRT.empty()) {
      const int numBins = m_cutBinET_TRT.size();
      int ibinET = 0;
      while (ibinET < numBins && et > m_cutBinET_TRT[ibinET]) {
        ++ibinET;
      }
      ibin_et_TRT = ibinET;
    }
 
    int  ibin_combined_TRT =ibin_eta_TRT;
    if(ibin_et_TRT>0){
      ibin_combined_TRT =ibin_et_TRT*m_cutBinEta_TRT.size()+ibin_eta_TRT;
    }
 
    if (CheckVar(m_cutTRTRatio, 5) && CheckVar(m_cutEProbabilityHT, 5)) {
      ATH_MSG_WARNING("We apply both: TRT ratio and eProbabilityHT cuts, are "
                      "you sure you want that, if yes good luck");
    }
 
    if (CheckVar(m_cutEProbabilityHT, 5)) {
 
      if (TRT_PID < m_cutEProbabilityHT[ibin_combined_TRT] && nTRTTotal > 0) {
        iflag |= (0x1 << egammaPID::TrackTRTeProbabilityHT_Electron);
      }
    }
 
    if (CheckVar(m_cutTRTRatio,5)) {
 
      if (rTRT < m_cutTRTRatio[ibin_combined_TRT] && nTRTTotal > 0) {
        iflag |= (0x1 << egammaPID::TrackTRTratio_Electron);
      }
    }
 
    if (CheckVar(m_cutTRTRatio90, 5)) { // not really used
      if (rTRT < m_cutTRTRatio90[ibin_combined_TRT]) {
        iflag |= (0x1 << egammaPID::TrackTRTratio90_Electron);
      }
    }
  } // eta TRT
 
  return iflag;
}
 
std::vector<int> Root::TElectronIsEMSelector::FindEtEtaBin(double et, double eta2) const{
 
  // Try to figure out in which bin we belong
 
  //Example
  //For Et we have an array  of values
  //5000; 10000; 15000; 20000; 30000; 40000; 50000; 60000; 70000; 80000
  //with 10 entries
  //And we have 11 cut entries
  //so ibin_et can be 0-10
  int ibin_et = -1;
  // loop on ET range
  if (!m_cutBinET.empty()) {
    const int numBins = m_cutBinET.size();
    int ibinET = 0;
    while (ibinET < numBins && et > m_cutBinET[ibinET]) {
      ++ibinET;
    }
    ibin_et = ibinET;
  }
  //For eta we have an array  of values
  // 0.1; 0.6 ;0.8; 1.15; 1.37; 1.52; 1.81; 2.01; 2.37; 2.47
  //with 10 entries
  //And we have 10 cut entries
  //As above 2.47 will be cut by
  //egammaPID::ClusterEtaRange_Electron
  //so valid ibin_eta can be 0-9  (we need to have eta2<2.47)
  int ibin_eta = -1;
  if (!m_cutBinEta.empty() && eta2<m_cutBinEta.back()) {
    const int numBins = (m_cutBinEta.size()-1);
    int ibinEta = 0;
    while (ibinEta < numBins && eta2 > m_cutBinEta[ibinEta]) {
      ++ibinEta;
    }
    ibin_eta = ibinEta;
  }
 
  const int ibin_combined = ibin_et * m_cutBinEta.size() + ibin_eta;
  // check the bin number
  std::vector<int> bins{ ibin_et, ibin_eta, ibin_combined };
  return bins;
}
 
// ==============================================================
 
template<typename T>
bool Root::TElectronIsEMSelector::CheckVar(const std::vector<T>& vec, int choice) const
{
  // check vector size
  // 0 : size should be 1
  // 1 : vs etaNB
  // 2 : vs etaTRTNB
  // 3 : vs etNB
  // 4 : vs combinedNB
  // 5 : vs combinedTRTNB
 
  // if size of vector is 0 it means cut is not defined
  if (vec.empty()) {
    return false;
  }
 
  const unsigned int etaNB = m_cutBinEta.size();
  const unsigned int etaTRTNB = m_cutBinEta_TRT.size();
  const unsigned int etNB =  m_cutBinET.size();
  const unsigned int etTRTNB =  m_cutBinET_TRT.size();
  unsigned int combinedNB = 0;
  unsigned int combinedTRTNB = 0;
 
  if (etNB>1) {
    combinedNB = etaNB * (etNB+1);
  }
  else {
    combinedNB = etaNB;
  }
 
  if (etTRTNB>1) {
    combinedTRTNB = etaTRTNB * (etTRTNB+1);
  }
  else {
    combinedTRTNB = etaTRTNB;
  }
 
  // check if size is 1 (give choice 0)
  if (choice==0) {
    if ( vec.size() != 1) {
      ATH_MSG_ERROR("choice 0 vector size is "
             << vec.size() << " but needs 1");
      return false;
    }
  }
 
  // check if size is etaNB
  if (choice==1) {
    if ( vec.size() != etaNB ) {
      ATH_MSG_ERROR("choice 1 vector size is "
             << vec.size() << " but needs "
             << etaNB);
      return false;
    }
  }
  // check if size is etaTRTNB
  if (choice==2) {
    if ( vec.size() != etaTRTNB ) {
      ATH_MSG_ERROR("choice 2 vector size is "
             << vec.size() << " but needs "
             << etaTRTNB);
      return false;
    }
  }
 
  // check if size is etNB
  if (choice==3) {
    if ( vec.size() != etNB ) {
      ATH_MSG_ERROR("choice 3 vector size is "
             << vec.size() << " but needs "
             << etNB);
      return false;
    }
  }
 
  // check if size is combinedNB
  if (choice==4) {
    if ( vec.size() != combinedNB ) {
      ATH_MSG_ERROR("choice 4 vector size is "
             << vec.size() << " but needs "
             << combinedNB);
      return false;
    }
  }
 
  // check if size is etaTRTNB
  if (choice==5) {
    if ( vec.size() != combinedTRTNB ) {
      ATH_MSG_ERROR("choice 5 vector size is "
             << vec.size() << " but needs "
             << combinedTRTNB);
      return false;
    }
  }
  return true;
}
 
template bool Root::TElectronIsEMSelector::CheckVar<float>  (const std::vector<float>& vec, int choice) const;
template bool Root::TElectronIsEMSelector::CheckVar<int>  (const std::vector<int>& vec, int choice) const;