PFTrackAlgoTools.cc

Go to the documentation of this file.

#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "RecoParticleFlow/PFTracking/interface/PFTrackAlgoTools.h"
 
namespace PFTrackAlgoTools {
 
  double dPtCut(const reco::TrackBase::TrackAlgorithm& algo,
                const std::vector<double>& cuts,
                bool hltIterativeTracking = true) {
    switch (algo) {
      case reco::TrackBase::ctf:
      case reco::TrackBase::duplicateMerge:
      case reco::TrackBase::initialStep:
      case reco::TrackBase::highPtTripletStep:
      case reco::TrackBase::lowPtQuadStep:
      case reco::TrackBase::lowPtTripletStep:
      case reco::TrackBase::pixelPairStep:
      case reco::TrackBase::jetCoreRegionalStep:
        return cuts[0];
      case reco::TrackBase::detachedQuadStep:
      case reco::TrackBase::detachedTripletStep:
        return cuts[1];
      case reco::TrackBase::mixedTripletStep:
        return cuts[2];
      case reco::TrackBase::pixelLessStep:
        return cuts[3];
      case reco::TrackBase::tobTecStep:
        return cuts[4];
      case reco::TrackBase::muonSeededStepInOut:
      case reco::TrackBase::muonSeededStepOutIn:
        return cuts.at(5);
      case reco::TrackBase::hltIter0:
      case reco::TrackBase::hltIter1:
      case reco::TrackBase::hltIter2:
        return cuts[0];
      case reco::TrackBase::hltIter3:
        return hltIterativeTracking ? cuts[1] : cuts[0];
      case reco::TrackBase::hltIter4:
        return hltIterativeTracking ? cuts[2] : cuts[0];
      case reco::TrackBase::hltIterX:
        return cuts[0];
      default:
        return hltIterativeTracking ? cuts.at(5) : cuts[0];
    }
  }
 
  unsigned int nHitCut(const reco::TrackBase::TrackAlgorithm& algo,
                       const std::vector<unsigned int>& cuts,
                       bool hltIterativeTracking = true) {
    switch (algo) {
      case reco::TrackBase::ctf:
      case reco::TrackBase::duplicateMerge:
      case reco::TrackBase::initialStep:
      case reco::TrackBase::highPtTripletStep:
      case reco::TrackBase::lowPtQuadStep:
      case reco::TrackBase::lowPtTripletStep:
      case reco::TrackBase::pixelPairStep:
      case reco::TrackBase::jetCoreRegionalStep:
        return cuts[0];
      case reco::TrackBase::detachedQuadStep:
      case reco::TrackBase::detachedTripletStep:
        return cuts[1];
      case reco::TrackBase::mixedTripletStep:
        return cuts[2];
      case reco::TrackBase::pixelLessStep:
        return cuts[3];
      case reco::TrackBase::tobTecStep:
        return cuts[4];
      case reco::TrackBase::muonSeededStepInOut:
      case reco::TrackBase::muonSeededStepOutIn:
        return cuts.at(5);
      case reco::TrackBase::hltIter0:
      case reco::TrackBase::hltIter1:
      case reco::TrackBase::hltIter2:
        return cuts[0];
      case reco::TrackBase::hltIter3:
        return hltIterativeTracking ? cuts[1] : cuts[0];
      case reco::TrackBase::hltIter4:
        return hltIterativeTracking ? cuts[2] : cuts[0];
      case reco::TrackBase::hltIterX:
        return cuts[0];
      default:
        return hltIterativeTracking ? cuts.at(5) : cuts[0];
    }
  }
 
  double errorScale(const reco::TrackBase::TrackAlgorithm& algo, const std::vector<double>& errorScale) {
    switch (algo) {
      case reco::TrackBase::ctf:
      case reco::TrackBase::duplicateMerge:
      case reco::TrackBase::initialStep:
      case reco::TrackBase::highPtTripletStep:
      case reco::TrackBase::lowPtQuadStep:
      case reco::TrackBase::lowPtTripletStep:
      case reco::TrackBase::pixelPairStep:
      case reco::TrackBase::jetCoreRegionalStep:
      case reco::TrackBase::muonSeededStepInOut:
      case reco::TrackBase::muonSeededStepOutIn:
      case reco::TrackBase::detachedQuadStep:
      case reco::TrackBase::detachedTripletStep:
      case reco::TrackBase::mixedTripletStep:
      case reco::TrackBase::hltIter0:
      case reco::TrackBase::hltIter1:
      case reco::TrackBase::hltIter2:
      case reco::TrackBase::hltIter3:
      case reco::TrackBase::hltIter4:
      case reco::TrackBase::hltIterX:
        return 1.0;
      case reco::TrackBase::pixelLessStep:
        return errorScale[0];
      case reco::TrackBase::tobTecStep:
        return errorScale[1];
      default:
        return 1E9;
    }
  }
 
  bool isGoodForEGM(const reco::TrackBase::TrackAlgorithm& algo) {
    switch (algo) {
      case reco::TrackBase::ctf:
      case reco::TrackBase::duplicateMerge:
      case reco::TrackBase::initialStep:
      case reco::TrackBase::highPtTripletStep:
      case reco::TrackBase::lowPtQuadStep:
      case reco::TrackBase::lowPtTripletStep:
      case reco::TrackBase::pixelPairStep:
      case reco::TrackBase::jetCoreRegionalStep:
      case reco::TrackBase::detachedQuadStep:
      case reco::TrackBase::detachedTripletStep:
      case reco::TrackBase::mixedTripletStep:
      case reco::TrackBase::muonSeededStepInOut:
      case reco::TrackBase::muonSeededStepOutIn:
      case reco::TrackBase::hltIter0:
      case reco::TrackBase::hltIter1:
      case reco::TrackBase::hltIter2:
      case reco::TrackBase::hltIter3:
      case reco::TrackBase::hltIter4:
      case reco::TrackBase::hltIterX:
        return true;
      default:
        return false;
    }
  }
 
  bool isGoodForEGMPrimary(const reco::TrackBase::TrackAlgorithm& algo) {
    switch (algo) {
      case reco::TrackBase::ctf:
      case reco::TrackBase::duplicateMerge:
      case reco::TrackBase::cosmics:
      case reco::TrackBase::initialStep:
      case reco::TrackBase::highPtTripletStep:
      case reco::TrackBase::lowPtQuadStep:
      case reco::TrackBase::lowPtTripletStep:
      case reco::TrackBase::pixelPairStep:
      case reco::TrackBase::detachedQuadStep:
      case reco::TrackBase::detachedTripletStep:
      case reco::TrackBase::mixedTripletStep:
        return true;
      default:
        return false;
    }
  }
 
  bool isFifthStep(const reco::TrackBase::TrackAlgorithm& algo) {
    switch (algo) {
      case reco::TrackBase::ctf:
      case reco::TrackBase::duplicateMerge:
      case reco::TrackBase::initialStep:
      case reco::TrackBase::highPtTripletStep:
      case reco::TrackBase::lowPtQuadStep:
      case reco::TrackBase::lowPtTripletStep:
      case reco::TrackBase::pixelPairStep:
      case reco::TrackBase::jetCoreRegionalStep:
      case reco::TrackBase::detachedQuadStep:
      case reco::TrackBase::detachedTripletStep:
      case reco::TrackBase::mixedTripletStep:
      case reco::TrackBase::pixelLessStep:
      case reco::TrackBase::muonSeededStepInOut:
      case reco::TrackBase::muonSeededStepOutIn:
      case reco::TrackBase::hltIter0:
      case reco::TrackBase::hltIter1:
      case reco::TrackBase::hltIter2:
      case reco::TrackBase::hltIter3:
      case reco::TrackBase::hltIter4:
      case reco::TrackBase::hltIterX:
        return false;
      case reco::TrackBase::tobTecStep:
        return true;
      default:
        return true;
    }
  }
 
  bool highQuality(const reco::TrackBase::TrackAlgorithm& algo) {
    switch (algo) {
      case reco::TrackBase::initialStep:
      case reco::TrackBase::highPtTripletStep:
      case reco::TrackBase::lowPtQuadStep:
      case reco::TrackBase::lowPtTripletStep:
      case reco::TrackBase::pixelPairStep:
      case reco::TrackBase::detachedQuadStep:
      case reco::TrackBase::detachedTripletStep:
      case reco::TrackBase::duplicateMerge:
      case reco::TrackBase::jetCoreRegionalStep:
        return true;
      default:
        return false;
    }
  }
 
  bool nonIterative(const reco::TrackBase::TrackAlgorithm& algo) {
    switch (algo) {
      case reco::TrackBase::undefAlgorithm:
      case reco::TrackBase::ctf:
      case reco::TrackBase::cosmics:
        return true;
      default:
        return false;
    }
  }
 
  bool step45(const reco::TrackBase::TrackAlgorithm& algo) {
    switch (algo) {
      case reco::TrackBase::mixedTripletStep:
      case reco::TrackBase::pixelLessStep:
      case reco::TrackBase::tobTecStep:
        return true;
      default:
        return false;
    }
  }
 
  bool step5(const reco::TrackBase::TrackAlgorithm& algo) {
    return (algo == reco::TrackBase::tobTecStep || algo == reco::TrackBase::pixelLessStep);
  }
 
  bool goodPtResolution(const reco::TrackRef& trackref,
                        const std::vector<double>& DPtovPtCut,
                        const std::vector<unsigned>& NHitCut,
                        bool useIterTracking,
                        reco::TrackBase::TrackQuality trackQuality) {
    //check quality of tracks
    if (!trackref->quality(trackQuality))
      return false;
 
    const double p = trackref->p();
    const double pT = trackref->pt();
    const double dpT = trackref->ptError();
    const unsigned int nHit = trackref->hitPattern().trackerLayersWithMeasurement();
    const unsigned int nLostHit = trackref->hitPattern().trackerLayersWithoutMeasurement(reco::HitPattern::TRACK_HITS);
    const unsigned int lostHits = trackref->numberOfLostHits();
    const double sigmaHad = std::sqrt(1.20 * 1.20 / p + 0.06 * 0.06) / (1. + lostHits);
 
    // Protection against 0 momentum tracks
    if (p < 0.05)
      return false;
 
    LogDebug("goodPtResolution") << " PFBlockAlgo: PFrecTrack->Track Pt= " << pT << " DPt = " << dpT << std::endl;
 
    double dptCut = dPtCut(trackref->algo(), DPtovPtCut, useIterTracking);
    unsigned int nhitCut = nHitCut(trackref->algo(), NHitCut, useIterTracking);
 
    if ((dptCut > 0. && dpT / pT > dptCut * sigmaHad) || nHit < nhitCut) {
      LogDebug("goodPtResolution") << " PFBlockAlgo: skip badly measured track"
                                   << ", P = " << p << ", Pt = " << pT << " DPt = " << dpT << ", N(hits) = " << nHit
                                   << " (Lost : " << lostHits << "/" << nLostHit << ")"
                                   << ", Algo = " << trackref->algo() << std::endl;
      LogDebug("goodPtResolution") << " cut is DPt/Pt < " << dptCut * sigmaHad << std::endl;
      LogDebug("goodPtResolution") << " cut is NHit >= " << nhitCut << std::endl;
      return false;
    }
 
    return true;
  }
 
}  // namespace PFTrackAlgoTools