Utils/src/JetTools.cc

#include "MitPhysics/Utils/interface/JetTools.h"

ClassImp(mithep::JetTools)

using namespace mithep;
 
JetTools::JetTools()
{
   // Constructor
}

JetTools::~JetTools() 
{
  // Destructor.
}

//Remember to remove the signal from particles before inputting into the function
Double_t JetTools::NJettiness(const ParticleOArr *particles, const JetOArr *jets, double Q, double Y){
  if(particles->GetEntries() <= 0) return 0.0;

  Double_t fval = 0.0;
  Double_t fvalpart;

  for(int i=0;i<int(particles->GetEntries());i++){
    fvalpart = (particles->At(i)->Pt()) * TMath::Exp(-TMath::Abs(particles->At(i)->Eta()-Y)); 

    for(int j=0;j<int(jets->GetEntries());j++){
      fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) * 
                 (2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-particles->At(i)->Eta()))
                - 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),particles->At(i)->Phi()))));
    }
    fval = fval + fvalpart;
  }

  fval = fval / Q;

  return fval;
}

Double_t JetTools::NJettiness(const PFCandidateOArr *pfCandidates, const JetOArr *jets, double Q, double Y){
  if(pfCandidates->GetEntries() <= 0) return 0.0;

  Double_t fval = 0.0;
  Double_t fvalpart;

  for(int i=0;i<int(pfCandidates->GetEntries());i++){
    fvalpart = (pfCandidates->At(i)->Pt()) * TMath::Exp(-TMath::Abs(pfCandidates->At(i)->Eta()-Y)); 

    for(int j=0;j<int(jets->GetEntries());j++){
      fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) * 
                 (2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-pfCandidates->At(i)->Eta()))
                - 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),pfCandidates->At(i)->Phi()))));
    }
    fval = fval + fvalpart;
  }

  fval = fval / Q;

  return fval;
}

Double_t JetTools::NJettiness(const TrackOArr *tracks, const JetOArr *jets, double Q, double Y){
  if(tracks->GetEntries() <= 0) return 0.0;

  Double_t fval = 0.0;
  Double_t fvalpart;

  for(int i=0;i<int(tracks->GetEntries());i++){
    fvalpart = (tracks->At(i)->Pt()) * TMath::Exp(-TMath::Abs(tracks->At(i)->Eta()-Y));     

    for(int j=0;j<int(jets->GetEntries());j++){
      fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) * 
                 (2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-tracks->At(i)->Eta()))
                - 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),tracks->At(i)->Phi()))));
    }
    fval = fval + fvalpart;
  }

  fval = fval / Q;
  
  return fval;
}

Double_t JetTools::NJettiness(const JetOArr *jetsS, const JetOArr *jets, double Q, double Y){
  if(jetsS->GetEntries() <= 0) return 0.0;

  Double_t fval = 0.0;
  Double_t fvalpart;

  for(int i=0;i<int(jetsS->GetEntries());i++){
    fvalpart = (jetsS->At(i)->Pt()) * TMath::Exp(-TMath::Abs(jetsS->At(i)->Eta()-Y));     

    for(int j=0;j<int(jets->GetEntries());j++){
      fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) * 
                 (2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-jetsS->At(i)->Eta()))
                - 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),jetsS->At(i)->Phi()))));
    }
    fval = fval + fvalpart;
  }

  fval = fval / Q;
  
  return fval;
}

Double_t JetTools::NJettiness(const CaloTowerOArr *calos, const JetOArr *jets, double Q, double Y){
  if(calos->GetEntries() <= 0) return 0.0;

  Double_t fval = 0.0;
  Double_t fvalpart;

  for(int i=0;i<int(calos->GetEntries());i++){
    fvalpart = (calos->At(i)->Pt()) * TMath::Exp(-TMath::Abs(calos->At(i)->Eta()-Y));     

    for(int j=0;j<int(jets->GetEntries());j++){
      fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) * 
                 (2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-calos->At(i)->Eta()))
                - 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),calos->At(i)->Phi()))));
    }
    fval = fval + fvalpart;
  }

  fval = fval / Q;
  
  return fval;
}

//M_r
Double_t JetTools::M_r(const ParticleOArr *particles){

  if(particles->GetEntries() < 2) return -999.;

  Double_t E0  = particles->At(0)->E();
  Double_t E1  = particles->At(1)->E();
  Double_t Pz0 = particles->At(0)->Pz();
  Double_t Pz1 = particles->At(1)->Pz();

  Double_t den =  TMath::Power(Pz0-Pz1, 2) - TMath::Power(E0-E1,2);
  if(den <= 0) return -100.;

  return 2.0*TMath::Sqrt(TMath::Power(E0*Pz1 - E1*Pz0, 2)/den);
}

//Beta_r
Double_t JetTools::Beta_r(const ParticleOArr *particles){

  if(particles->GetEntries() < 2) return -999.;

  Double_t E0  = particles->At(0)->E();
  Double_t E1  = particles->At(1)->E();
  Double_t Pz0 = particles->At(0)->Pz();
  Double_t Pz1 = particles->At(1)->Pz();

  return (E0-E1)/(Pz0-Pz1);
}

//M_r_t
Double_t JetTools::M_r_t(const ParticleOArr *particles, const Met *met){

  if(particles->GetEntries() < 2) return -999.;

  Double_t Pt0    = particles->At(0)->Pt();
  Double_t Pt1    = particles->At(1)->Pt();
  Double_t etmiss = met->Pt();

  Double_t Px0    = particles->At(0)->Px();
  Double_t Px1    = particles->At(1)->Px();
  Double_t metx   = met->Px();
  Double_t Py0    = particles->At(0)->Py();
  Double_t Py1    = particles->At(1)->Py();
  Double_t mety   = met->Py();

  return TMath::Sqrt(0.5*etmiss*(Pt0 + Pt1) - 0.5*(metx*(Px0 + Px1) + mety*(Py0 + Py1)));
}

//Razor
Double_t JetTools::Razor(const ParticleOArr *particles, const Met *met){
  if(particles->GetEntries() < 2) return -999.;

  Double_t mr  = M_r(particles);
  Double_t mrt = M_r_t(particles,met);
  
  if(mr != 0) return mrt/mr;
  
  return -999.;
}

//Cosine Omega
Double_t JetTools::CosineOmega(const Particle *particles0, const Particle *particles1){

  TLorentzVector v_L1(particles0->Px(),particles0->Py(),particles0->Pz(),particles0->E());
  TLorentzVector v_L2(particles1->Px(),particles1->Py(),particles1->Pz(),particles1->E());

  Double_t beta = (v_L1.P()-v_L2.P())/(v_L1.Pz()-v_L2.Pz());

  TVector3 B;
  B.SetXYZ(0.0,0.0,-1.0*beta);

  v_L1.Boost(B);
  v_L2.Boost(B);

  Double_t cosomega = v_L1.Vect().Dot(v_L2.Vect())/(v_L1.P()*v_L2.P());

  return cosomega;
}

//Transverse Higgs mass
Double_t JetTools::MtHiggs(const ParticleOArr * leptons,
                           const Met *met, double metFraction[2], int nsel){
  if(leptons->Entries() < 2) return -999.0;

  double mtHiggs = -999.0;
  double enell = 0.0;
  double enenn = 0.0;
  double enex  = 0.0;
  double eney  = 0.0;
  double mll   = 0.0;
  double mnu   = 0.0;
  CompositeParticle *dilepton = new CompositeParticle();
  dilepton->AddDaughter(leptons->At(0));
  dilepton->AddDaughter(leptons->At(1));
  
  if     (nsel == 0){ // Use of Mt mass and mnu == mll
    enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mt()*dilepton->Mt());
    enenn = TMath::Sqrt(met->Pt() *met->Pt()  + dilepton->Mt()*dilepton->Mt());
    enex  = dilepton->Px() + met->Px();
    eney  = dilepton->Py() + met->Py();
    mll   = dilepton->Mass();
    mnu   = mll;
  }
  else if(nsel == 1){ // Use of Mt mass and mnu == 0
    enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mt()*dilepton->Mt());
    enenn = TMath::Sqrt(met->Pt() *met->Pt()  + 0.0*0.0);
    enex  = dilepton->Px() + met->Px();
    eney  = dilepton->Py() + met->Py();
    mll   = dilepton->Mass();
    mnu   = 0.0;
  }
  else if(nsel == 2){ // Use of M mass and mnu == mll
    enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mass()*dilepton->Mass());
    enenn = TMath::Sqrt(met->Pt() *met->Pt()  + dilepton->Mass()*dilepton->Mass());
    enex  = dilepton->Px() + met->Px();
    eney  = dilepton->Py() + met->Py();
    mll   = dilepton->Mass();
    mnu   = mll;
  }
  else if(nsel == 3){ // Use of M mass and mnu == 0
    enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mass()*dilepton->Mass());
    enenn = TMath::Sqrt(met->Pt() *met->Pt()  + 0.0*0.0);
    enex  = dilepton->Px() + met->Px();
    eney  = dilepton->Py() + met->Py();
    mll   = dilepton->Mass();
    mnu   = 0.0;
  }
  else if(nsel == 4){ // Use of Mt mass and replacing mnu using the met optimal
    enell = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mt()*dilepton->Mt());
    enenn = TMath::Sqrt(met->Pt() *met->Pt()  + 0.0*0.0);
    enex  = dilepton->Px() + met->Px();
    eney  = dilepton->Py() + met->Py();
    mll   = dilepton->Mass();
    double metAuxPx[2] = {met->Px() * metFraction[0],
                          met->Px() * (1.0 - metFraction[0])};
    double metAuxPy[2] = {met->Py() * metFraction[1],
                          met->Py() * (1.0 - metFraction[1])};
    double ene = TMath::Sqrt(metAuxPx[0]*metAuxPx[0]+metAuxPy[0]*metAuxPy[0]) +
                 TMath::Sqrt(metAuxPx[1]*metAuxPx[1]+metAuxPy[1]*metAuxPy[1]);
    double px = metAuxPx[0] + metAuxPx[1];
    double py = metAuxPy[0] + metAuxPy[1];
    mnu = TMath::Sqrt(ene*ene - px*px - py*py);
  }
  else if(nsel == 5){ // Using the optimal met value
    double metAuxPx[2] = {met->Px() * metFraction[0],
                          met->Px() * (1.0 - metFraction[0])};
    double metAuxPy[2] = {met->Py() * metFraction[1],
                          met->Py() * (1.0 - metFraction[1])};
    double ene = leptons->At(0)->Pt() + leptons->At(1)->Pt() +
                 TMath::Sqrt(metAuxPx[0]*metAuxPx[0]+metAuxPy[0]*metAuxPy[0]) +
                 TMath::Sqrt(metAuxPx[1]*metAuxPx[1]+metAuxPy[1]*metAuxPy[1]);
    double px = leptons->At(0)->Px() + leptons->At(1)->Px() +
                metAuxPx[0] + metAuxPx[1];
    double py = leptons->At(0)->Py() + leptons->At(1)->Py() +
                metAuxPy[0] + metAuxPy[1];
    mtHiggs = ene*ene - px*px - py*py;
  }
  else if(nsel == 6){ // Use the formula from hep-ph:1006.4998
    mtHiggs = 2*leptons->At(0)->Pt()*leptons->At(0)->Pt() + 2*leptons->At(1)->Pt()*leptons->At(1)->Pt() + 3 * (
      leptons->At(0)->Pt()*leptons->At(1)->Pt() + met->Pt()*(leptons->At(0)->Pt()+leptons->At(1)->Pt())
      - met->Px()*dilepton->Px() - met->Py()*dilepton->Py()
      - leptons->At(0)->Px()*leptons->At(1)->Px() - leptons->At(0)->Py()*leptons->At(1)->Py());
  }
  else if(nsel == 7){ // Use of M mass and mnu == 0, no fancy stuff
    enell   = TMath::Sqrt(dilepton->Pt()*dilepton->Pt() + dilepton->Mass()*dilepton->Mass());
    enenn   = TMath::Sqrt(met->Pt()*met->Pt() + 0.0*0.0);
    enex    = dilepton->Px() + met->Px();
    eney    = dilepton->Py() + met->Py();
    mtHiggs = (enell+enenn)*(enell+enenn) - enex*enex - eney*eney;
  }

  if(nsel >= 0 && nsel <= 4){
    mtHiggs = mll*mll + mnu*mnu + 2.0*(enell*enenn - enex*enex - eney*eney);
  }

  if(mtHiggs <= 0) mtHiggs = 0.0;
  else             mtHiggs = TMath::Sqrt(mtHiggs);

  delete dilepton;

  return mtHiggs;
}

Double_t JetTools::Beta(const TrackCol *tracks, Jet *jet, const Vertex *vertex, Double_t  delta_z, Double_t delta_cone){  

  if(tracks->GetEntries() <= 0) return 1.0;

  double Pt_jets_X = 0. ;
  double Pt_jets_Y = 0. ;
  double Pt_jets_X_tot = 0. ;
  double Pt_jets_Y_tot = 0. ;

  for(int i=0;i<int(tracks->GetEntries());i++){
    if(MathUtils::DeltaR(tracks->At(i)->Mom(),jet->Mom()) < delta_cone){
      Pt_jets_X_tot += tracks->At(i)->Px();
      Pt_jets_Y_tot += tracks->At(i)->Py();  
      double pDz = TMath::Abs(tracks->At(i)->DzCorrected(*vertex));
      if(pDz < delta_z){
        Pt_jets_X += tracks->At(i)->Px();
        Pt_jets_Y += tracks->At(i)->Py();   
      }
    }
  }

  if(sqrt(Pt_jets_X_tot*Pt_jets_X_tot + Pt_jets_Y_tot*Pt_jets_Y_tot) > 0)
    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);

  return 1.0;
}


Double_t JetTools::Beta(const PFJet *jet, const Vertex *vertex, Double_t  delta_z){  
  double Pt_jets_X = 0. ;
  double Pt_jets_Y = 0. ;
  double Pt_jets_X_tot = 0. ;
  double Pt_jets_Y_tot = 0. ;

  for(UInt_t i=0;i<jet->NPFCands();i++){
    if(jet->PFCand(i)->BestTrk()){
      Pt_jets_X_tot += jet->PFCand(i)->BestTrk()->Px();
      Pt_jets_Y_tot += jet->PFCand(i)->BestTrk()->Py();  
      double pDz = TMath::Abs(jet->PFCand(i)->BestTrk()->DzCorrected(*vertex));
      if(pDz < delta_z){
        Pt_jets_X += jet->PFCand(i)->BestTrk()->Px();
        Pt_jets_Y += jet->PFCand(i)->BestTrk()->Py();
      }
    }
  }

  if(sqrt(Pt_jets_X_tot*Pt_jets_X_tot + Pt_jets_Y_tot*Pt_jets_Y_tot) > 0)
    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);

  return 1.0;
}


Bool_t  JetTools::PassBetaVertexAssociationCut(const PFJet *jet, const Vertex *referenceVertex, const VertexCol *vertices, Double_t delta_z) {

  Bool_t passBetaCut = kTRUE;
  if(vertices->GetEntries() > 0) {
    Double_t Beta = JetTools::Beta(jet, referenceVertex, 0.2);
    Double_t Beta_other = 0.0;
    for(UInt_t nv=0; nv<vertices->GetEntries(); nv++){
      if (referenceVertex == vertices->At(nv)) continue;
      Double_t BetaAux = JetTools::Beta(jet, vertices->At(nv), 0.2);
      if(BetaAux > Beta_other) Beta_other = BetaAux;
    }
    if(Beta_other > Beta) passBetaCut = kFALSE;
  }

  return passBetaCut; 

}
Revision:	1.12
Committed:	Fri Mar 11 15:19:36 2011 UTC (14 years, 1 month ago) by ceballos
Content type:	text/plain
Branch:	MAIN
CVS Tags:	Mit_020a, Mit_020, Mit_020pre1
Changes since 1.11:	+4 -4 lines
Log Message:	new
#	User	Rev	Content
1	ceballos	1.1	#include "MitPhysics/Utils/interface/JetTools.h"
2
3			ClassImp(mithep::JetTools)
4
5			using namespace mithep;
6
7			JetTools::JetTools()
8			{
9			// Constructor
10			}
11
12			JetTools::~JetTools()
13			{
14			// Destructor.
15			}
16
17			//Remember to remove the signal from particles before inputting into the function
18	mzanetti	1.6	Double_t JetTools::NJettiness(const ParticleOArr particles, const JetOArr jets, double Q, double Y){
19	ceballos	1.2	if(particles->GetEntries() <= 0) return 0.0;
20
21	ceballos	1.1	Double_t fval = 0.0;
22			Double_t fvalpart;
23
24			for(int i=0;i<int(particles->GetEntries());i++){
25			fvalpart = (particles->At(i)->Pt()) * TMath::Exp(-TMath::Abs(particles->At(i)->Eta()-Y));
26
27			for(int j=0;j<int(jets->GetEntries());j++){
28			fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
29			(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-particles->At(i)->Eta()))
30			- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),particles->At(i)->Phi()))));
31			}
32			fval = fval + fvalpart;
33			}
34	ceballos	1.2
35	mzanetti	1.6	fval = fval / Q;
36	ceballos	1.2
37	ceballos	1.1	return fval;
38			}
39
40	mzanetti	1.6	Double_t JetTools::NJettiness(const PFCandidateOArr pfCandidates, const JetOArr jets, double Q, double Y){
41			if(pfCandidates->GetEntries() <= 0) return 0.0;
42
43			Double_t fval = 0.0;
44			Double_t fvalpart;
45
46			for(int i=0;i<int(pfCandidates->GetEntries());i++){
47			fvalpart = (pfCandidates->At(i)->Pt()) * TMath::Exp(-TMath::Abs(pfCandidates->At(i)->Eta()-Y));
48
49			for(int j=0;j<int(jets->GetEntries());j++){
50			fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
51			(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-pfCandidates->At(i)->Eta()))
52			- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),pfCandidates->At(i)->Phi()))));
53			}
54			fval = fval + fvalpart;
55			}
56
57			fval = fval / Q;
58
59			return fval;
60			}
61
62			Double_t JetTools::NJettiness(const TrackOArr tracks, const JetOArr jets, double Q, double Y){
63	ceballos	1.2	if(tracks->GetEntries() <= 0) return 0.0;
64
65	ceballos	1.1	Double_t fval = 0.0;
66			Double_t fvalpart;
67
68			for(int i=0;i<int(tracks->GetEntries());i++){
69			fvalpart = (tracks->At(i)->Pt()) * TMath::Exp(-TMath::Abs(tracks->At(i)->Eta()-Y));
70
71			for(int j=0;j<int(jets->GetEntries());j++){
72			fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
73			(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-tracks->At(i)->Eta()))
74			- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),tracks->At(i)->Phi()))));
75			}
76			fval = fval + fvalpart;
77			}
78	ceballos	1.2
79	mzanetti	1.6	fval = fval / Q;
80	ceballos	1.2
81	ceballos	1.1	return fval;
82			}
83
84	mzanetti	1.6	Double_t JetTools::NJettiness(const JetOArr jetsS, const JetOArr jets, double Q, double Y){
85	ceballos	1.2	if(jetsS->GetEntries() <= 0) return 0.0;
86
87	ceballos	1.1	Double_t fval = 0.0;
88			Double_t fvalpart;
89
90			for(int i=0;i<int(jetsS->GetEntries());i++){
91			fvalpart = (jetsS->At(i)->Pt()) * TMath::Exp(-TMath::Abs(jetsS->At(i)->Eta()-Y));
92
93			for(int j=0;j<int(jets->GetEntries());j++){
94			fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
95			(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-jetsS->At(i)->Eta()))
96			- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),jetsS->At(i)->Phi()))));
97			}
98			fval = fval + fvalpart;
99			}
100	ceballos	1.2
101	mzanetti	1.6	fval = fval / Q;
102	ceballos	1.2
103			return fval;
104			}
105
106	mzanetti	1.6	Double_t JetTools::NJettiness(const CaloTowerOArr calos, const JetOArr jets, double Q, double Y){
107	ceballos	1.2	if(calos->GetEntries() <= 0) return 0.0;
108
109			Double_t fval = 0.0;
110			Double_t fvalpart;
111
112			for(int i=0;i<int(calos->GetEntries());i++){
113			fvalpart = (calos->At(i)->Pt()) * TMath::Exp(-TMath::Abs(calos->At(i)->Eta()-Y));
114
115			for(int j=0;j<int(jets->GetEntries());j++){
116			fvalpart = TMath::Min(fvalpart,(jets->At(j)->Pt()) *
117			(2 * TMath::CosH(TMath::Abs(jets->At(j)->Eta()-calos->At(i)->Eta()))
118			- 2 * TMath::Cos(MathUtils::DeltaPhi(jets->At(j)->Phi(),calos->At(i)->Phi()))));
119			}
120			fval = fval + fvalpart;
121			}
122
123	mzanetti	1.6	fval = fval / Q;
124	ceballos	1.2
125	ceballos	1.1	return fval;
126			}
127
128			//M_r
129			Double_t JetTools::M_r(const ParticleOArr *particles){
130
131			if(particles->GetEntries() < 2) return -999.;
132
133			Double_t E0 = particles->At(0)->E();
134			Double_t E1 = particles->At(1)->E();
135			Double_t Pz0 = particles->At(0)->Pz();
136			Double_t Pz1 = particles->At(1)->Pz();
137
138			Double_t den = TMath::Power(Pz0-Pz1, 2) - TMath::Power(E0-E1,2);
139			if(den <= 0) return -100.;
140
141			return 2.0TMath::Sqrt(TMath::Power(E0Pz1 - E1*Pz0, 2)/den);
142			}
143
144			//Beta_r
145			Double_t JetTools::Beta_r(const ParticleOArr *particles){
146
147			if(particles->GetEntries() < 2) return -999.;
148
149			Double_t E0 = particles->At(0)->E();
150			Double_t E1 = particles->At(1)->E();
151			Double_t Pz0 = particles->At(0)->Pz();
152			Double_t Pz1 = particles->At(1)->Pz();
153
154			return (E0-E1)/(Pz0-Pz1);
155			}
156
157			//M_r_t
158			Double_t JetTools::M_r_t(const ParticleOArr particles, const Met met){
159
160			if(particles->GetEntries() < 2) return -999.;
161
162			Double_t Pt0 = particles->At(0)->Pt();
163			Double_t Pt1 = particles->At(1)->Pt();
164			Double_t etmiss = met->Pt();
165
166			Double_t Px0 = particles->At(0)->Px();
167			Double_t Px1 = particles->At(1)->Px();
168			Double_t metx = met->Px();
169			Double_t Py0 = particles->At(0)->Py();
170			Double_t Py1 = particles->At(1)->Py();
171			Double_t mety = met->Py();
172
173			return TMath::Sqrt(0.5etmiss(Pt0 + Pt1) - 0.5(metx(Px0 + Px1) + mety*(Py0 + Py1)));
174			}
175
176			//Razor
177			Double_t JetTools::Razor(const ParticleOArr particles, const Met met){
178			if(particles->GetEntries() < 2) return -999.;
179
180			Double_t mr = M_r(particles);
181			Double_t mrt = M_r_t(particles,met);
182
183			if(mr != 0) return mrt/mr;
184
185			return -999.;
186			}
187
188			//Cosine Omega
189	ceballos	1.3	Double_t JetTools::CosineOmega(const Particle particles0, const Particle particles1){
190	ceballos	1.1
191	ceballos	1.3	TLorentzVector v_L1(particles0->Px(),particles0->Py(),particles0->Pz(),particles0->E());
192			TLorentzVector v_L2(particles1->Px(),particles1->Py(),particles1->Pz(),particles1->E());
193	ceballos	1.1
194			Double_t beta = (v_L1.P()-v_L2.P())/(v_L1.Pz()-v_L2.Pz());
195
196			TVector3 B;
197			B.SetXYZ(0.0,0.0,-1.0*beta);
198
199			v_L1.Boost(B);
200			v_L2.Boost(B);
201
202			Double_t cosomega = v_L1.Vect().Dot(v_L2.Vect())/(v_L1.P()*v_L2.P());
203
204			return cosomega;
205			}
206
207			//Transverse Higgs mass
208	ceballos	1.3	Double_t JetTools::MtHiggs(const ParticleOArr * leptons,
209	ceballos	1.4	const Met *met, double metFraction[2], int nsel){
210	ceballos	1.3	if(leptons->Entries() < 2) return -999.0;
211
212	ceballos	1.1	double mtHiggs = -999.0;
213	ceballos	1.3	double enell = 0.0;
214			double enenn = 0.0;
215			double enex = 0.0;
216			double eney = 0.0;
217			double mll = 0.0;
218			double mnu = 0.0;
219			CompositeParticle *dilepton = new CompositeParticle();
220			dilepton->AddDaughter(leptons->At(0));
221			dilepton->AddDaughter(leptons->At(1));
222	ceballos	1.1
223			if (nsel == 0){ // Use of Mt mass and mnu == mll
224			enell = TMath::Sqrt(dilepton->Pt()dilepton->Pt() + dilepton->Mt()dilepton->Mt());
225			enenn = TMath::Sqrt(met->Pt() met->Pt() + dilepton->Mt()dilepton->Mt());
226			enex = dilepton->Px() + met->Px();
227			eney = dilepton->Py() + met->Py();
228			mll = dilepton->Mass();
229			mnu = mll;
230			}
231			else if(nsel == 1){ // Use of Mt mass and mnu == 0
232			enell = TMath::Sqrt(dilepton->Pt()dilepton->Pt() + dilepton->Mt()dilepton->Mt());
233			enenn = TMath::Sqrt(met->Pt() met->Pt() + 0.00.0);
234			enex = dilepton->Px() + met->Px();
235			eney = dilepton->Py() + met->Py();
236			mll = dilepton->Mass();
237			mnu = 0.0;
238			}
239			else if(nsel == 2){ // Use of M mass and mnu == mll
240			enell = TMath::Sqrt(dilepton->Pt()dilepton->Pt() + dilepton->Mass()dilepton->Mass());
241			enenn = TMath::Sqrt(met->Pt() met->Pt() + dilepton->Mass()dilepton->Mass());
242			enex = dilepton->Px() + met->Px();
243			eney = dilepton->Py() + met->Py();
244			mll = dilepton->Mass();
245			mnu = mll;
246			}
247			else if(nsel == 3){ // Use of M mass and mnu == 0
248			enell = TMath::Sqrt(dilepton->Pt()dilepton->Pt() + dilepton->Mass()dilepton->Mass());
249			enenn = TMath::Sqrt(met->Pt() met->Pt() + 0.00.0);
250			enex = dilepton->Px() + met->Px();
251			eney = dilepton->Py() + met->Py();
252			mll = dilepton->Mass();
253			mnu = 0.0;
254			}
255	ceballos	1.4	else if(nsel == 4){ // Use of Mt mass and replacing mnu using the met optimal
256			enell = TMath::Sqrt(dilepton->Pt()dilepton->Pt() + dilepton->Mt()dilepton->Mt());
257			enenn = TMath::Sqrt(met->Pt() met->Pt() + 0.00.0);
258			enex = dilepton->Px() + met->Px();
259			eney = dilepton->Py() + met->Py();
260			mll = dilepton->Mass();
261			double metAuxPx[2] = {met->Px() * metFraction[0],
262			met->Px() * (1.0 - metFraction[0])};
263			double metAuxPy[2] = {met->Py() * metFraction[1],
264			met->Py() * (1.0 - metFraction[1])};
265			double ene = TMath::Sqrt(metAuxPx[0]metAuxPx[0]+metAuxPy[0]metAuxPy[0]) +
266			TMath::Sqrt(metAuxPx[1]metAuxPx[1]+metAuxPy[1]metAuxPy[1]);
267			double px = metAuxPx[0] + metAuxPx[1];
268			double py = metAuxPy[0] + metAuxPy[1];
269			mnu = TMath::Sqrt(eneene - pxpx - py*py);
270			}
271			else if(nsel == 5){ // Using the optimal met value
272			double metAuxPx[2] = {met->Px() * metFraction[0],
273			met->Px() * (1.0 - metFraction[0])};
274			double metAuxPy[2] = {met->Py() * metFraction[1],
275			met->Py() * (1.0 - metFraction[1])};
276			double ene = leptons->At(0)->Pt() + leptons->At(1)->Pt() +
277			TMath::Sqrt(metAuxPx[0]metAuxPx[0]+metAuxPy[0]metAuxPy[0]) +
278			TMath::Sqrt(metAuxPx[1]metAuxPx[1]+metAuxPy[1]metAuxPy[1]);
279			double px = leptons->At(0)->Px() + leptons->At(1)->Px() +
280			metAuxPx[0] + metAuxPx[1];
281			double py = leptons->At(0)->Py() + leptons->At(1)->Py() +
282			metAuxPy[0] + metAuxPy[1];
283			mtHiggs = eneene - pxpx - py*py;
284			}
285			else if(nsel == 6){ // Use the formula from hep-ph:1006.4998
286	ceballos	1.3	mtHiggs = 2leptons->At(0)->Pt()leptons->At(0)->Pt() + 2leptons->At(1)->Pt()leptons->At(1)->Pt() + 3 * (
287			leptons->At(0)->Pt()leptons->At(1)->Pt() + met->Pt()(leptons->At(0)->Pt()+leptons->At(1)->Pt())
288			- met->Px()dilepton->Px() - met->Py()dilepton->Py()
289			- leptons->At(0)->Px()leptons->At(1)->Px() - leptons->At(0)->Py()leptons->At(1)->Py());
290	ceballos	1.1	}
291	ceballos	1.11	else if(nsel == 7){ // Use of M mass and mnu == 0, no fancy stuff
292	ceballos	1.12	enell = TMath::Sqrt(dilepton->Pt()dilepton->Pt() + dilepton->Mass()dilepton->Mass());
293			enenn = TMath::Sqrt(met->Pt()met->Pt() + 0.00.0);
294			enex = dilepton->Px() + met->Px();
295			eney = dilepton->Py() + met->Py();
296	ceballos	1.11	mtHiggs = (enell+enenn)(enell+enenn) - enexenex - eney*eney;
297			}
298	ceballos	1.1
299	ceballos	1.4	if(nsel >= 0 && nsel <= 4){
300	ceballos	1.3	mtHiggs = mllmll + mnumnu + 2.0(enellenenn - enexenex - eneyeney);
301			}
302	ceballos	1.11
303	ceballos	1.1	if(mtHiggs <= 0) mtHiggs = 0.0;
304			else mtHiggs = TMath::Sqrt(mtHiggs);
305
306	ceballos	1.3	delete dilepton;
307
308	ceballos	1.1	return mtHiggs;
309			}
310	ceballos	1.5
311	ceballos	1.9	Double_t JetTools::Beta(const TrackCol tracks, Jet jet, const Vertex *vertex, Double_t delta_z, Double_t delta_cone){
312
313			if(tracks->GetEntries() <= 0) return 1.0;
314	ceballos	1.5
315			double Pt_jets_X = 0. ;
316			double Pt_jets_Y = 0. ;
317			double Pt_jets_X_tot = 0. ;
318			double Pt_jets_Y_tot = 0. ;
319
320			for(int i=0;i<int(tracks->GetEntries());i++){
321			if(MathUtils::DeltaR(tracks->At(i)->Mom(),jet->Mom()) < delta_cone){
322			Pt_jets_X_tot += tracks->At(i)->Px();
323			Pt_jets_Y_tot += tracks->At(i)->Py();
324	ceballos	1.9	double pDz = TMath::Abs(tracks->At(i)->DzCorrected(*vertex));
325	ceballos	1.5	if(pDz < delta_z){
326			Pt_jets_X += tracks->At(i)->Px();
327			Pt_jets_Y += tracks->At(i)->Py();
328			}
329			}
330			}
331
332	ceballos	1.8	if(sqrt(Pt_jets_X_totPt_jets_X_tot + Pt_jets_Y_totPt_jets_Y_tot) > 0)
333	ceballos	1.9	return sqrt(Pt_jets_XPt_jets_X + Pt_jets_YPt_jets_Y) / sqrt(Pt_jets_X_totPt_jets_X_tot + Pt_jets_Y_totPt_jets_Y_tot);
334
335			return 1.0;
336	ceballos	1.5	}
337
338	ceballos	1.7
339	ceballos	1.9	Double_t JetTools::Beta(const PFJet jet, const Vertex vertex, Double_t delta_z){
340	ceballos	1.7	double Pt_jets_X = 0. ;
341			double Pt_jets_Y = 0. ;
342			double Pt_jets_X_tot = 0. ;
343			double Pt_jets_Y_tot = 0. ;
344
345			for(UInt_t i=0;i<jet->NPFCands();i++){
346			if(jet->PFCand(i)->BestTrk()){
347			Pt_jets_X_tot += jet->PFCand(i)->BestTrk()->Px();
348			Pt_jets_Y_tot += jet->PFCand(i)->BestTrk()->Py();
349	ceballos	1.9	double pDz = TMath::Abs(jet->PFCand(i)->BestTrk()->DzCorrected(*vertex));
350	ceballos	1.7	if(pDz < delta_z){
351			Pt_jets_X += jet->PFCand(i)->BestTrk()->Px();
352	ceballos	1.9	Pt_jets_Y += jet->PFCand(i)->BestTrk()->Py();
353	ceballos	1.7	}
354			}
355			}
356
357	ceballos	1.8	if(sqrt(Pt_jets_X_totPt_jets_X_tot + Pt_jets_Y_totPt_jets_Y_tot) > 0)
358	ceballos	1.9	return sqrt(Pt_jets_XPt_jets_X + Pt_jets_YPt_jets_Y) / sqrt(Pt_jets_X_totPt_jets_X_tot + Pt_jets_Y_totPt_jets_Y_tot);
359
360			return 1.0;
361	ceballos	1.7	}
362	sixie	1.10
363
364			Bool_t JetTools::PassBetaVertexAssociationCut(const PFJet jet, const Vertex referenceVertex, const VertexCol *vertices, Double_t delta_z) {
365
366			Bool_t passBetaCut = kTRUE;
367			if(vertices->GetEntries() > 0) {
368			Double_t Beta = JetTools::Beta(jet, referenceVertex, 0.2);
369			Double_t Beta_other = 0.0;
370			for(UInt_t nv=0; nv<vertices->GetEntries(); nv++){
371			if (referenceVertex == vertices->At(nv)) continue;
372			Double_t BetaAux = JetTools::Beta(jet, vertices->At(nv), 0.2);
373			if(BetaAux > Beta_other) Beta_other = BetaAux;
374			}
375			if(Beta_other > Beta) passBetaCut = kFALSE;
376			}
377
378			return passBetaCut;
379
380			}