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#include "DataFormats/BTauReco/interface/IsolatedTauTagInfo.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include <Math/GenVector/VectorUtil.h>
using namespace edm;
using namespace reco;
const RefVector<TrackCollection> IsolatedTauTagInfo::tracksInCone(const math::XYZVector& myVector,
const float size,
const float pt_min) const {
RefVector<TrackCollection> tmp;
RefVector<TrackCollection>::const_iterator myTrack = selectedTracks_.begin();
for (; myTrack != selectedTracks_.end(); myTrack++) {
const math::XYZVector trackMomentum = (*myTrack)->momentum();
float pt_tk = (*myTrack)->pt();
float deltaR = ROOT::Math::VectorUtil::DeltaR(myVector, trackMomentum);
if (deltaR < size && pt_tk > pt_min)
tmp.push_back(*myTrack);
}
// sort(tmp.begin(), tmp.end(), SortByDescendingTrackPt());
return tmp;
}
const RefVector<TrackCollection> IsolatedTauTagInfo::tracksInCone(
const math::XYZVector& myVector, const float size, const float pt_min, const float z_pv, const float dz_lt) const {
RefVector<TrackCollection> tmp;
RefVector<TrackCollection>::const_iterator myTrack = selectedTracks_.begin();
for (; myTrack != selectedTracks_.end(); myTrack++) {
const math::XYZVector trackMomentum = (*myTrack)->momentum();
float pt_tk = (*myTrack)->pt();
float deltaR = ROOT::Math::VectorUtil::DeltaR(myVector, trackMomentum);
if (deltaR < size && pt_tk > pt_min && fabs((*myTrack)->dz() - z_pv) < dz_lt)
tmp.push_back(*myTrack);
}
// sort(tmp.begin(), tmp.end(), SortByDescendingTrackPt());
return tmp;
}
void IsolatedTauTagInfo::setLeadingTrack(const TrackRef leadTk) { leadTrack_ = leadTk; }
const TrackRef IsolatedTauTagInfo::leadingSignalTrack() const { return leadTrack_; }
const TrackRef IsolatedTauTagInfo::leadingSignalTrack(const float rm_cone, const float pt_min) const {
const Jet& myjet = *jet();
math::XYZVector jet3Vec(myjet.px(), myjet.py(), myjet.pz());
const RefVector<TrackCollection> sTracks = tracksInCone(jet3Vec, rm_cone, pt_min);
TrackRef leadTk;
float pt_cut = pt_min;
if (!sTracks.empty()) {
RefVector<TrackCollection>::const_iterator myTrack = sTracks.begin();
for (; myTrack != sTracks.end(); myTrack++) {
if ((*myTrack)->pt() > pt_cut) {
leadTk = *myTrack;
pt_cut = (*myTrack)->pt();
}
}
}
return leadTk;
}
const TrackRef IsolatedTauTagInfo::leadingSignalTrack(const math::XYZVector& myVector,
const float rm_cone,
const float pt_min) const {
const RefVector<TrackCollection> sTracks = tracksInCone(myVector, rm_cone, pt_min);
TrackRef leadTk;
float pt_cut = pt_min;
if (!sTracks.empty()) {
RefVector<TrackCollection>::const_iterator myTrack = sTracks.begin();
for (; myTrack != sTracks.end(); myTrack++) {
if ((*myTrack)->pt() > pt_cut) {
leadTk = *myTrack;
pt_cut = (*myTrack)->pt();
}
}
}
return leadTk;
}
float IsolatedTauTagInfo::discriminator(
float m_cone, float sig_cone, float iso_cone, float pt_min_lt, float pt_min_tk, int nTracksIsoRing) const {
double myDiscriminator = 0.;
const TrackRef leadTk = leadingSignalTrack(m_cone, pt_min_lt);
if (!leadTk) {
return myDiscriminator;
}
//if signal cone is greater then the isolation cone and the leadTk exists, the jet is isolated.
if (sig_cone > iso_cone)
return 1.;
math::XYZVector trackMomentum = leadTk->momentum();
const RefVector<TrackCollection> signalTracks = tracksInCone(trackMomentum, sig_cone, pt_min_tk);
const RefVector<TrackCollection> isolationTracks = tracksInCone(trackMomentum, iso_cone, pt_min_tk);
if (!signalTracks.empty() && (int)(isolationTracks.size() - signalTracks.size()) <= nTracksIsoRing)
myDiscriminator = 1;
return myDiscriminator;
}
float IsolatedTauTagInfo::discriminator(const math::XYZVector& myVector,
float m_cone,
float sig_cone,
float iso_cone,
float pt_min_lt,
float pt_min_tk,
int nTracksIsoRing) const {
double myDiscriminator = 0;
//if signal cone is greater then the isolation cone and the leadTk exists, the jet is isolated.
if (sig_cone > iso_cone)
return 1.;
const TrackRef leadTk = leadingSignalTrack(myVector, m_cone, pt_min_lt);
if (!leadTk)
return myDiscriminator;
//if signal cone is greater then the isolation cone and the leadTk exists, the jet is isolated.
if (sig_cone > iso_cone)
return 1.;
math::XYZVector trackMomentum = leadTk->momentum();
const RefVector<TrackCollection> signalTracks = tracksInCone(trackMomentum, sig_cone, pt_min_tk);
const RefVector<TrackCollection> isolationTracks = tracksInCone(trackMomentum, iso_cone, pt_min_tk);
if (!signalTracks.empty() && (int)(isolationTracks.size() - signalTracks.size()) <= nTracksIsoRing)
myDiscriminator = 1;
return myDiscriminator;
}
float IsolatedTauTagInfo::discriminator(float m_cone,
float sig_cone,
float iso_cone,
float pt_min_lt,
float pt_min_tk,
int nTracksIsoRing,
float dz_lt) const {
double myDiscriminator = 0;
const TrackRef leadTk = leadingSignalTrack(m_cone, pt_min_lt);
if (!leadTk) {
return myDiscriminator;
}
//if signal cone is greater then the isolation cone and the leadTk exists, the jet is isolated.
if (sig_cone > iso_cone)
return 1.;
math::XYZVector trackMomentum = leadTk->momentum();
float z_pv = leadTk->dz();
const RefVector<TrackCollection> signalTracks = tracksInCone(trackMomentum, sig_cone, pt_min_tk, z_pv, dz_lt);
const RefVector<TrackCollection> isolationTracks = tracksInCone(trackMomentum, iso_cone, pt_min_tk, z_pv, dz_lt);
if (!signalTracks.empty() && (int)(isolationTracks.size() - signalTracks.size()) <= nTracksIsoRing)
myDiscriminator = 1;
return myDiscriminator;
}
float IsolatedTauTagInfo::discriminator(const math::XYZVector& myVector,
float m_cone,
float sig_cone,
float iso_cone,
float pt_min_lt,
float pt_min_tk,
int nTracksIsoRing,
float dz_lt) const {
double myDiscriminator = 0;
const TrackRef leadTk = leadingSignalTrack(myVector, m_cone, pt_min_lt);
if (!leadTk)
return myDiscriminator;
//if signal cone is greater then the isolation cone and the leadTk exists, the jet is isolated.
if (sig_cone > iso_cone)
return 1.;
math::XYZVector trackMomentum = leadTk->momentum();
float z_pv = leadTk->dz();
const RefVector<TrackCollection> signalTracks = tracksInCone(trackMomentum, sig_cone, pt_min_tk, z_pv, dz_lt);
const RefVector<TrackCollection> isolationTracks = tracksInCone(trackMomentum, iso_cone, pt_min_tk, z_pv, dz_lt);
if (!signalTracks.empty() && (int)(isolationTracks.size() - signalTracks.size()) <= nTracksIsoRing)
myDiscriminator = 1;
return myDiscriminator;
}
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