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#include "MitPhysics/Utils/interface/JetTools.h"
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#include <algorithm>
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#include <vector>
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ClassImp(mithep::JetTools)
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using namespace mithep;
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JetTools::JetTools()
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{
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// Constructor
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}
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JetTools::~JetTools()
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{
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// Destructor.
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}
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//Remember to remove the signal from particles before inputting into the function
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Double_t JetTools::NJettiness(const ParticleOArr *particles, const JetOArr *jets, double Q, double Y){
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if(particles->GetEntries() <= 0) return 0.0;
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Double_t fval = 0.0;
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Double_t fvalpart;
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for(int i=0;i<int(particles->GetEntries());i++){
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fvalpart = (particles->At(i)->Pt()) * TMath::Exp(-TMath::Abs(particles->At(i)->Eta()-Y));
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for(int j=0;j<int(jets->GetEntries());j++){
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fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
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(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-particles->At(i)->Eta()))
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- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),particles->At(i)->Phi()))));
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}
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fval = fval + fvalpart;
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}
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fval = fval / Q;
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return fval;
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}
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Double_t JetTools::NJettiness(const PFCandidateOArr *pfCandidates, const JetOArr *jets, double Q, double Y){
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if(pfCandidates->GetEntries() <= 0) return 0.0;
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Double_t fval = 0.0;
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Double_t fvalpart;
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for(int i=0;i<int(pfCandidates->GetEntries());i++){
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fvalpart = (pfCandidates->At(i)->Pt()) * TMath::Exp(-TMath::Abs(pfCandidates->At(i)->Eta()-Y));
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for(int j=0;j<int(jets->GetEntries());j++){
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fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
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(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-pfCandidates->At(i)->Eta()))
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- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),pfCandidates->At(i)->Phi()))));
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}
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fval = fval + fvalpart;
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}
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fval = fval / Q;
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return fval;
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}
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Double_t JetTools::NJettiness(const TrackOArr *tracks, const JetOArr *jets, double Q, double Y){
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if(tracks->GetEntries() <= 0) return 0.0;
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Double_t fval = 0.0;
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Double_t fvalpart;
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for(int i=0;i<int(tracks->GetEntries());i++){
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fvalpart = (tracks->At(i)->Pt()) * TMath::Exp(-TMath::Abs(tracks->At(i)->Eta()-Y));
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for(int j=0;j<int(jets->GetEntries());j++){
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fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
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(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-tracks->At(i)->Eta()))
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- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),tracks->At(i)->Phi()))));
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}
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fval = fval + fvalpart;
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}
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fval = fval / Q;
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return fval;
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}
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Double_t JetTools::NJettiness(const JetOArr *jetsS, const JetOArr *jets, double Q, double Y){
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if(jetsS->GetEntries() <= 0) return 0.0;
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Double_t fval = 0.0;
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Double_t fvalpart;
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for(int i=0;i<int(jetsS->GetEntries());i++){
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fvalpart = (jetsS->At(i)->Pt()) * TMath::Exp(-TMath::Abs(jetsS->At(i)->Eta()-Y));
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for(int j=0;j<int(jets->GetEntries());j++){
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fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
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(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-jetsS->At(i)->Eta()))
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- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),jetsS->At(i)->Phi()))));
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}
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fval = fval + fvalpart;
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}
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fval = fval / Q;
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return fval;
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}
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Double_t JetTools::NJettiness(const CaloTowerOArr *calos, const JetOArr *jets, double Q, double Y){
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if(calos->GetEntries() <= 0) return 0.0;
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Double_t fval = 0.0;
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Double_t fvalpart;
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for(int i=0;i<int(calos->GetEntries());i++){
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fvalpart = (calos->At(i)->Pt()) * TMath::Exp(-TMath::Abs(calos->At(i)->Eta()-Y));
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for(int j=0;j<int(jets->GetEntries());j++){
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fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
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(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-calos->At(i)->Eta()))
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- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),calos->At(i)->Phi()))));
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}
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fval = fval + fvalpart;
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}
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fval = fval / Q;
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return fval;
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}
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//M_r
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Double_t JetTools::M_r(const ParticleOArr *particles){
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if(particles->GetEntries() < 2) return -999.;
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Double_t E0 = particles->At(0)->E();
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Double_t E1 = particles->At(1)->E();
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Double_t Pz0 = particles->At(0)->Pz();
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Double_t Pz1 = particles->At(1)->Pz();
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Double_t den = TMath::Power(Pz0-Pz1, 2) - TMath::Power(E0-E1,2);
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if(den <= 0) return -100.;
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return 2.0*TMath::Sqrt(TMath::Power(E0*Pz1 - E1*Pz0, 2)/den);
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}
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//Beta_r
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Double_t JetTools::Beta_r(const ParticleOArr *particles){
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if(particles->GetEntries() < 2) return -999.;
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Double_t E0 = particles->At(0)->E();
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Double_t E1 = particles->At(1)->E();
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Double_t Pz0 = particles->At(0)->Pz();
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Double_t Pz1 = particles->At(1)->Pz();
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return (E0-E1)/(Pz0-Pz1);
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}
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//M_r_t
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Double_t JetTools::M_r_t(const ParticleOArr *particles, const Met *met){
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if(particles->GetEntries() < 2) return -999.;
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Double_t Pt0 = particles->At(0)->Pt();
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Double_t Pt1 = particles->At(1)->Pt();
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Double_t etmiss = met->Pt();
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Double_t Px0 = particles->At(0)->Px();
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Double_t Px1 = particles->At(1)->Px();
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Double_t metx = met->Px();
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Double_t Py0 = particles->At(0)->Py();
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Double_t Py1 = particles->At(1)->Py();
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Double_t mety = met->Py();
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return TMath::Sqrt(0.5*etmiss*(Pt0 + Pt1) - 0.5*(metx*(Px0 + Px1) + mety*(Py0 + Py1)));
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}
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//Razor
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Double_t JetTools::Razor(const ParticleOArr *particles, const Met *met){
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if(particles->GetEntries() < 2) return -999.;
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Double_t mr = M_r(particles);
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Double_t mrt = M_r_t(particles,met);
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if(mr != 0) return mrt/mr;
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return -999.;
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}
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//Cosine Omega
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Double_t JetTools::CosineOmega(const Particle *particles0, const Particle *particles1){
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TLorentzVector v_L1(particles0->Px(),particles0->Py(),particles0->Pz(),particles0->E());
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TLorentzVector v_L2(particles1->Px(),particles1->Py(),particles1->Pz(),particles1->E());
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Double_t beta = (v_L1.P()-v_L2.P())/(v_L1.Pz()-v_L2.Pz());
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TVector3 B;
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B.SetXYZ(0.0,0.0,-1.0*beta);
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v_L1.Boost(B);
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v_L2.Boost(B);
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Double_t cosomega = v_L1.Vect().Dot(v_L2.Vect())/(v_L1.P()*v_L2.P());
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return cosomega;
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}
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//Transverse Higgs mass
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Double_t JetTools::MtHiggs(const ParticleOArr * leptons,
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const Met *met, double metFraction[2], int nsel){
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if(leptons->Entries() < 2) return -999.0;
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double mtHiggs = -999.0;
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double enell = 0.0;
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double enenn = 0.0;
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double enex = 0.0;
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double eney = 0.0;
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double mll = 0.0;
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double mnu = 0.0;
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CompositeParticle *dilepton = new CompositeParticle();
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dilepton->AddDaughter(leptons->At(0));
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dilepton->AddDaughter(leptons->At(1));
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if (nsel == 0){ // Use of Mt mass and mnu == mll
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enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mt()*dilepton->Mt());
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enenn = TMath::Sqrt(met->Pt() *met->Pt() + dilepton->Mt()*dilepton->Mt());
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enex = dilepton->Px() + met->Px();
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eney = dilepton->Py() + met->Py();
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mll = dilepton->Mass();
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mnu = mll;
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}
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else if(nsel == 1){ // Use of Mt mass and mnu == 0
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enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mt()*dilepton->Mt());
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enenn = TMath::Sqrt(met->Pt() *met->Pt() + 0.0*0.0);
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enex = dilepton->Px() + met->Px();
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eney = dilepton->Py() + met->Py();
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mll = dilepton->Mass();
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mnu = 0.0;
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}
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else if(nsel == 2){ // Use of M mass and mnu == mll
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enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mass()*dilepton->Mass());
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enenn = TMath::Sqrt(met->Pt() *met->Pt() + dilepton->Mass()*dilepton->Mass());
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enex = dilepton->Px() + met->Px();
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eney = dilepton->Py() + met->Py();
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mll = dilepton->Mass();
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mnu = mll;
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}
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else if(nsel == 3){ // Use of M mass and mnu == 0
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enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mass()*dilepton->Mass());
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enenn = TMath::Sqrt(met->Pt() *met->Pt() + 0.0*0.0);
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enex = dilepton->Px() + met->Px();
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eney = dilepton->Py() + met->Py();
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mll = dilepton->Mass();
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mnu = 0.0;
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}
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else if(nsel == 4){ // Use of Mt mass and replacing mnu using the met optimal
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enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mt()*dilepton->Mt());
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enenn = TMath::Sqrt(met->Pt() *met->Pt() + 0.0*0.0);
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enex = dilepton->Px() + met->Px();
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eney = dilepton->Py() + met->Py();
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mll = dilepton->Mass();
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double metAuxPx[2] = {met->Px() * metFraction[0],
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met->Px() * (1.0 - metFraction[0])};
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double metAuxPy[2] = {met->Py() * metFraction[1],
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met->Py() * (1.0 - metFraction[1])};
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double ene = TMath::Sqrt(metAuxPx[0]*metAuxPx[0]+metAuxPy[0]*metAuxPy[0]) +
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TMath::Sqrt(metAuxPx[1]*metAuxPx[1]+metAuxPy[1]*metAuxPy[1]);
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double px = metAuxPx[0] + metAuxPx[1];
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double py = metAuxPy[0] + metAuxPy[1];
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mnu = TMath::Sqrt(ene*ene - px*px - py*py);
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}
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else if(nsel == 5){ // Using the optimal met value
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double metAuxPx[2] = {met->Px() * metFraction[0],
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met->Px() * (1.0 - metFraction[0])};
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double metAuxPy[2] = {met->Py() * metFraction[1],
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met->Py() * (1.0 - metFraction[1])};
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double ene = leptons->At(0)->Pt() + leptons->At(1)->Pt() +
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TMath::Sqrt(metAuxPx[0]*metAuxPx[0]+metAuxPy[0]*metAuxPy[0]) +
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TMath::Sqrt(metAuxPx[1]*metAuxPx[1]+metAuxPy[1]*metAuxPy[1]);
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double px = leptons->At(0)->Px() + leptons->At(1)->Px() +
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metAuxPx[0] + metAuxPx[1];
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double py = leptons->At(0)->Py() + leptons->At(1)->Py() +
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metAuxPy[0] + metAuxPy[1];
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mtHiggs = ene*ene - px*px - py*py;
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}
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else if(nsel == 6){ // Use the formula from hep-ph:1006.4998
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mtHiggs = 2*leptons->At(0)->Pt()*leptons->At(0)->Pt() + 2*leptons->At(1)->Pt()*leptons->At(1)->Pt() + 3 * (
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leptons->At(0)->Pt()*leptons->At(1)->Pt() + met->Pt()*(leptons->At(0)->Pt()+leptons->At(1)->Pt())
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- met->Px()*dilepton->Px() - met->Py()*dilepton->Py()
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- leptons->At(0)->Px()*leptons->At(1)->Px() - leptons->At(0)->Py()*leptons->At(1)->Py());
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}
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else if(nsel == 7){ // Use of M mass and mnu == 0
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double deltaPhiDileptonMet = MathUtils::DeltaPhi(dilepton->Phi(),
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met->Phi());
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mtHiggs = 2.0*dilepton->Pt()*met->Pt()*(1.0 - cos(deltaPhiDileptonMet));
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}
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| 299 |
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if(nsel >= 0 && nsel <= 4){
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| 301 |
mtHiggs = mll*mll + mnu*mnu + 2.0*(enell*enenn - enex*enex - eney*eney);
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}
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if(mtHiggs <= 0) mtHiggs = 0.0;
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else mtHiggs = TMath::Sqrt(mtHiggs);
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delete dilepton;
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| 309 |
return mtHiggs;
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| 310 |
}
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| 311 |
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| 312 |
Double_t JetTools::Beta(const TrackCol *tracks, Jet *jet, const Vertex *vertex, Double_t delta_z, Double_t delta_cone){
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| 313 |
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| 314 |
if(tracks->GetEntries() <= 0) return 1.0;
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| 315 |
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| 316 |
double Pt_jets_X = 0. ;
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| 317 |
double Pt_jets_Y = 0. ;
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| 318 |
double Pt_jets_X_tot = 0. ;
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| 319 |
double Pt_jets_Y_tot = 0. ;
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| 320 |
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| 321 |
for(int i=0;i<int(tracks->GetEntries());i++){
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| 322 |
if(MathUtils::DeltaR(tracks->At(i)->Mom(),jet->Mom()) < delta_cone){
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| 323 |
Pt_jets_X_tot += tracks->At(i)->Px();
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| 324 |
Pt_jets_Y_tot += tracks->At(i)->Py();
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| 325 |
double pDz = TMath::Abs(tracks->At(i)->DzCorrected(*vertex));
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| 326 |
if(pDz < delta_z){
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| 327 |
Pt_jets_X += tracks->At(i)->Px();
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| 328 |
Pt_jets_Y += tracks->At(i)->Py();
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| 329 |
}
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| 330 |
}
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| 331 |
}
|
| 332 |
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| 333 |
if(sqrt(Pt_jets_X_tot*Pt_jets_X_tot + Pt_jets_Y_tot*Pt_jets_Y_tot) > 0)
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| 334 |
return sqrt(Pt_jets_X*Pt_jets_X + Pt_jets_Y*Pt_jets_Y) / sqrt(Pt_jets_X_tot*Pt_jets_X_tot + Pt_jets_Y_tot*Pt_jets_Y_tot);
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| 335 |
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return 1.0;
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}
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| 338 |
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| 339 |
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| 340 |
Double_t JetTools::Beta(const PFJet *jet, const Vertex *vertex, Double_t delta_z){
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| 341 |
double Pt_jets= 0. ;
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double Pt_jetsTot = 0. ;
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| 343 |
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for(UInt_t i=0;i<jet->NPFCands();i++){
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if(jet->PFCand(i)->BestTrk()){
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Pt_jetsTot += jet->PFCand(i)->BestTrk()->Pt();
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double pDz = TMath::Abs(jet->PFCand(i)->BestTrk()->DzCorrected(*vertex));
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if(pDz < delta_z){
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Pt_jets += jet->PFCand(i)->BestTrk()->Pt();
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}
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| 351 |
}
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| 352 |
}
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| 353 |
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| 354 |
Double_t beta = 1.0;
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| 355 |
if (Pt_jetsTot > 0)
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| 356 |
beta = Pt_jets/Pt_jetsTot;
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| 357 |
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| 358 |
return beta;
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}
|
| 360 |
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| 361 |
Double_t JetTools::Beta2(const PFJet *jet, const Vertex *vertex, Double_t delta_z){
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| 362 |
double Pt_jets= 0. ;
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| 363 |
double Pt_jetsTot = 0. ;
|
| 364 |
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| 365 |
for(UInt_t i=0;i<jet->NPFCands();i++){
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| 366 |
if(jet->PFCand(i)->BestTrk()){
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| 367 |
Pt_jetsTot += jet->PFCand(i)->BestTrk()->Pt()*jet->PFCand(i)->BestTrk()->Pt();
|
| 368 |
double pDz = TMath::Abs(jet->PFCand(i)->BestTrk()->DzCorrected(*vertex));
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| 369 |
if(pDz < delta_z){
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| 370 |
Pt_jets += jet->PFCand(i)->BestTrk()->Pt()*jet->PFCand(i)->BestTrk()->Pt();
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| 371 |
}
|
| 372 |
}
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| 373 |
}
|
| 374 |
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| 375 |
Double_t beta = 1.0;
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| 376 |
if (Pt_jetsTot > 0)
|
| 377 |
beta = Pt_jets/Pt_jetsTot;
|
| 378 |
return beta;
|
| 379 |
}
|
| 380 |
|
| 381 |
|
| 382 |
Bool_t JetTools::PassBetaVertexAssociationCut(const PFJet *jet, const Vertex *referenceVertex, const VertexCol *vertices, Double_t delta_z) {
|
| 383 |
|
| 384 |
Bool_t passBetaCut = kTRUE;
|
| 385 |
if(vertices->GetEntries() > 0) {
|
| 386 |
Double_t Beta = JetTools::Beta(jet, referenceVertex, 0.2);
|
| 387 |
Double_t Beta_other = 0.0;
|
| 388 |
for(UInt_t nv=0; nv<vertices->GetEntries(); nv++){
|
| 389 |
if (referenceVertex == vertices->At(nv)) continue;
|
| 390 |
Double_t BetaAux = JetTools::Beta(jet, vertices->At(nv), 0.2);
|
| 391 |
if(BetaAux > Beta_other) Beta_other = BetaAux;
|
| 392 |
}
|
| 393 |
if(Beta_other > Beta) passBetaCut = kFALSE;
|
| 394 |
}
|
| 395 |
|
| 396 |
return passBetaCut;
|
| 397 |
|
| 398 |
}
|
| 399 |
|
| 400 |
Bool_t JetTools::PassBeta2VertexAssociationCut(const PFJet *jet, const Vertex *referenceVertex, const VertexCol *vertices, Double_t delta_z) {
|
| 401 |
|
| 402 |
Bool_t passBetaCut = kTRUE;
|
| 403 |
if(vertices->GetEntries() > 0) {
|
| 404 |
Double_t Beta = JetTools::Beta2(jet, referenceVertex, 0.2);
|
| 405 |
Double_t Beta_other = 0.0;
|
| 406 |
for(UInt_t nv=0; nv<vertices->GetEntries(); nv++){
|
| 407 |
if (referenceVertex == vertices->At(nv)) continue;
|
| 408 |
Double_t BetaAux = JetTools::Beta2(jet, vertices->At(nv), 0.2);
|
| 409 |
if(BetaAux > Beta_other) Beta_other = BetaAux;
|
| 410 |
}
|
| 411 |
if(Beta_other > Beta) passBetaCut = kFALSE;
|
| 412 |
}
|
| 413 |
|
| 414 |
return passBetaCut;
|
| 415 |
|
| 416 |
}
|
| 417 |
|
| 418 |
|
| 419 |
Int_t JetTools::MaxBetaVertexIndex(const PFJet *jet, const VertexCol *vertices, Double_t delta_z=0.2){
|
| 420 |
|
| 421 |
Int_t vertexIndex = -1;
|
| 422 |
double beta = -0.1;
|
| 423 |
for (UInt_t v=0; v < vertices->GetEntries(); v++){
|
| 424 |
Double_t betaTmp = JetTools::Beta(jet, vertices->At(v), delta_z);
|
| 425 |
if (betaTmp > beta) {
|
| 426 |
beta = betaTmp;
|
| 427 |
vertexIndex = v;
|
| 428 |
}
|
| 429 |
}
|
| 430 |
return vertexIndex;
|
| 431 |
|
| 432 |
}
|
| 433 |
|
| 434 |
Int_t JetTools::MaxBeta2VertexIndex(const PFJet *jet, const VertexCol *vertices, Double_t delta_z=0.2){
|
| 435 |
|
| 436 |
Int_t vertexIndex = -1;
|
| 437 |
double beta = -0.1;
|
| 438 |
for (UInt_t v=0; v < vertices->GetEntries(); v++){
|
| 439 |
Double_t betaTmp = JetTools::Beta2(jet, vertices->At(v), delta_z);
|
| 440 |
if (betaTmp > beta) {
|
| 441 |
beta = betaTmp;
|
| 442 |
vertexIndex = v;
|
| 443 |
}
|
| 444 |
}
|
| 445 |
return vertexIndex;
|
| 446 |
|
| 447 |
}
|
| 448 |
|
| 449 |
|
| 450 |
Int_t JetTools::JetToPVAssociation(const PFJet *jet, const VertexCol *vertices, Double_t delta_z=0.2){
|
| 451 |
|
| 452 |
std::vector<float> verticesPt2(vertices->GetEntries());
|
| 453 |
for(UInt_t i=0;i<jet->NPFCands();i++){
|
| 454 |
if(jet->PFCand(i)->BestTrk()){
|
| 455 |
double minDZ = delta_z;
|
| 456 |
int trackVertexIndex = -1;
|
| 457 |
for (UInt_t v=0; v < vertices->GetEntries(); v++){
|
| 458 |
if (minDZ > TMath::Abs(jet->PFCand(i)->BestTrk()->DzCorrected(*vertices->At(v)))) {
|
| 459 |
minDZ = TMath::Abs(jet->PFCand(i)->BestTrk()->DzCorrected(*vertices->At(v)));
|
| 460 |
trackVertexIndex = v;
|
| 461 |
}
|
| 462 |
}
|
| 463 |
if (trackVertexIndex < 0) continue;
|
| 464 |
verticesPt2[trackVertexIndex]+= jet->PFCand(i)->BestTrk()->Pt()*jet->PFCand(i)->BestTrk()->Pt();
|
| 465 |
}
|
| 466 |
}
|
| 467 |
|
| 468 |
Int_t vertexIndex = 0;
|
| 469 |
float pt2Max = 0;
|
| 470 |
for (uint i=0; i < verticesPt2.size(); ++i){
|
| 471 |
if (pt2Max < verticesPt2[i]) {
|
| 472 |
pt2Max = verticesPt2[i];
|
| 473 |
vertexIndex = i;
|
| 474 |
}
|
| 475 |
}
|
| 476 |
return vertexIndex;
|
| 477 |
}
|
