TtSemiLRSignalSelObservables Class Reference

#include <TtSemiLRSignalSelObservables.h>

Classes
struct	CompareBdisc
struct	CompareDouble
struct	CompareET

Public Member Functions
void	operator() (TtSemiEvtSolution &, const std::vector< pat::Jet > &)
	TtSemiLRSignalSelObservables ()
	~TtSemiLRSignalSelObservables ()

Private Attributes
CompareBdisc	BdiscComparator
CompareDouble	dComparator
CompareET	EtComparator
std::vector< std::pair< unsigned int, double > >	evtselectVarVal

Detailed Description

Definition at line 29 of file TtSemiLRSignalSelObservables.h.

Constructor & Destructor Documentation

TtSemiLRSignalSelObservables()

TtSemiLRSignalSelObservables::TtSemiLRSignalSelObservables

(

)

Definition at line 4 of file TtSemiLRSignalSelObservables.cc.

{}

~TtSemiLRSignalSelObservables()

TtSemiLRSignalSelObservables::~TtSemiLRSignalSelObservables

(

)

Definition at line 6 of file TtSemiLRSignalSelObservables.cc.

{}

Member Function Documentation

operator()()

void TtSemiLRSignalSelObservables::operator()	(	TtSemiEvtSolution &	TS,
		const std::vector< pat::Jet > &	SelectedTopJets
	)

Definition at line 8 of file TtSemiLRSignalSelObservables.cc.

References BdiscComparator, correctionTermsCaloMet_cff::C, MEzCalculator::Calculate(), funct::cos(), gather_cfg::cout, dComparator, DEBUG, hcalRecHitTable_cff::energy, reco::LeafCandidate::energy(), EgHLTOffHistBins_cfi::et, reco::LeafCandidate::et(), EtComparator, evtselectVarVal, TtSemiEvtSolution::getDecay(), TtSemiEvtSolution::getElectron(), TtSemiEvtSolution::getMuon(), TtSemiEvtSolution::getNeutrino(), data-class-funcs::H, tmtt::Utility::HT, mps_fire::i, edm::isNotFinite(), dqmiolumiharvest::j, dqmdumpme::k, dqm-mbProfile::log, WElectronSkim_cff::MT, N, dqmiodumpmetadata::n, conifer::pow(), DiDispStaMuonMonitor_cfi::pt, multPhiCorr_741_25nsDY_cfi::px, reco::LeafCandidate::px(), multPhiCorr_741_25nsDY_cfi::py, reco::LeafCandidate::py(), reco::LeafCandidate::pz(), MEzCalculator::SetLepton(), TtSemiEvtSolution::setLRSignalEvtObservables(), MEzCalculator::SetMET(), funct::sin(), and jetUpdater_cfi::sort.

                                                                                                             {
  evtselectVarVal.clear();

  // choice the B-tag algorithm
  const char *BtagAlgo = "trackCountingJetTags";

  // activate the "debug mode"
  bool DEBUG = false;

  if (DEBUG)
    std::cout << "---------- Start calculating the LR observables ----------" << std::endl;

  std::vector<pat::Jet> TopJets;
  TopJets.clear();

  for (unsigned int i = 0; i < SelectedTopJets.size(); i++) {
    TopJets.push_back(SelectedTopJets[i]);
  }

  //sort the TopJets in Et
  std::sort(TopJets.begin(), TopJets.end(), EtComparator);

  TLorentzVector *Hadp = new TLorentzVector();
  Hadp->SetPxPyPzE(TopJets[3].px(), TopJets[3].py(), TopJets[3].pz(), TopJets[3].energy());

  TLorentzVector *Hadq = new TLorentzVector();
  Hadq->SetPxPyPzE(TopJets[2].px(), TopJets[2].py(), TopJets[2].pz(), TopJets[2].energy());

  TLorentzVector *Hadb = new TLorentzVector();
  Hadb->SetPxPyPzE(TopJets[1].px(), TopJets[1].py(), TopJets[1].pz(), TopJets[1].energy());

  TLorentzVector *Lepb = new TLorentzVector();
  Lepb->SetPxPyPzE(TopJets[0].px(), TopJets[0].py(), TopJets[0].pz(), TopJets[0].energy());

  TLorentzVector *Lept = new TLorentzVector();
  if (TS.getDecay() == "muon")
    Lept->SetPxPyPzE(TS.getMuon().px(), TS.getMuon().py(), TS.getMuon().pz(), TS.getMuon().energy());
  else if (TS.getDecay() == "electron")
    Lept->SetPxPyPzE(TS.getElectron().px(), TS.getElectron().py(), TS.getElectron().pz(), TS.getElectron().energy());

  TLorentzVector *Lepn = new TLorentzVector();
  Lepn->SetPxPyPzE(TS.getNeutrino().px(), TS.getNeutrino().py(), TS.getNeutrino().pz(), TS.getNeutrino().energy());

  // Calculation of the pz of the neutrino due to W-mass constraint

  MEzCalculator *Mez = new MEzCalculator();
  Mez->SetMET(TS.getNeutrino());
  if (TS.getDecay() == "muon")
    Mez->SetLepton(TS.getMuon());
  else
    Mez->SetLepton(TS.getElectron(), false);
  double MEZ = Mez->Calculate();
  Lepn->SetPz(MEZ);

  // Pt of the lepton

  double Obs1 = Lept->Pt();
  evtselectVarVal.push_back(std::pair<unsigned int, double>(1, Obs1));
  if (DEBUG)
    std::cout << "------ LR observable 1 " << Obs1 << " calculated ------" << std::endl;

  // Missing transverse energy

  double Obs2 = TS.getNeutrino().et();
  evtselectVarVal.push_back(std::pair<unsigned int, double>(2, Obs2));
  if (DEBUG)
    std::cout << "------ LR observable 2 " << Obs2 << " calculated ------" << std::endl;

  //HT variable (Et-sum of the four jets)

  double HT = 0;
  for (unsigned int i = 0; i < 4; i++) {
    HT += TopJets[i].et();
  }

  double Obs3 = HT;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(3, Obs3));
  if (DEBUG)
    std::cout << "------ LR observable 3 " << Obs3 << " calculated ------" << std::endl;

  //Et-Sum of the lightest jets

  double EtSum = TopJets[2].et() + TopJets[3].et();
  double Obs4 = EtSum;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(4, Obs4));
  if (DEBUG)
    std::cout << "------ LR observable 4 " << Obs4 << " calculated ------" << std::endl;

  // Et-Ratio between the two lowest jets in Et and four highest jets

  double Obs5 = EtSum / HT;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(5, Obs5));
  if (DEBUG)
    std::cout << "------ LR observable 5 " << Obs5 << " calculated ------" << std::endl;

  // Et-Ratio between the two highest jets in Et and four highest jets

  double Obs6 = (HT - EtSum) / HT;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(6, Obs6));
  if (DEBUG)
    std::cout << "------ LR observable 6 " << Obs6 << " calculated ------" << std::endl;

  // Transverse Mass of the system

  TLorentzVector TtbarSystem = (*Hadp) + (*Hadq) + (*Hadb) + (*Lepb) + (*Lept) + (*Lepn);
  double MT = TtbarSystem.Mt();
  double Obs7 = MT;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(7, Obs7));
  if (DEBUG)
    std::cout << "------ LR observable 7 " << Obs7 << " calculated ------" << std::endl;

  // Observables related to the b-disc (jets ordered in Bdisc)

  //sort the TopJets in Bdiscriminant
  std::sort(TopJets.begin(), TopJets.end(), BdiscComparator);

  double Obs8;
  double Obs9;
  double Obs10;
  double Obs11;

  // Difference in bdisc between the 2nd and the 3rd jets
  double BGap = TopJets[1].bDiscriminator(BtagAlgo) - TopJets[2].bDiscriminator(BtagAlgo);

  // Sum of the bdisc of the two highest/lowest jets
  double BjetsBdiscSum = TopJets[0].bDiscriminator(BtagAlgo) + TopJets[1].bDiscriminator(BtagAlgo);
  double LjetsBdiscSum = TopJets[2].bDiscriminator(BtagAlgo) + TopJets[3].bDiscriminator(BtagAlgo);

  Obs8 = (TopJets[2].bDiscriminator(BtagAlgo) > -10 ? log(BGap) : -5);
  if (DEBUG)
    std::cout << "------ LR observable 8 " << Obs8 << " calculated ------" << std::endl;
  Obs9 = (BjetsBdiscSum * BGap);
  if (DEBUG)
    std::cout << "------ LR observable 9 " << Obs9 << " calculated ------" << std::endl;
  Obs10 = (BjetsBdiscSum / LjetsBdiscSum);
  if (DEBUG)
    std::cout << "------ LR observable 10 " << Obs10 << " calculated ------" << std::endl;
  // Distance from the origin in the (BjetsBdiscSum, LjetsBdiscSum) plane
  Obs11 = 0.707 * ((BjetsBdiscSum + LjetsBdiscSum) / 2 + 10);
  if (DEBUG)
    std::cout << "------ LR observable 11 " << Obs11 << " calculated ------" << std::endl;

  evtselectVarVal.push_back(std::pair<unsigned int, double>(8, Obs8));
  evtselectVarVal.push_back(std::pair<unsigned int, double>(9, Obs9));
  evtselectVarVal.push_back(std::pair<unsigned int, double>(10, Obs10));
  evtselectVarVal.push_back(std::pair<unsigned int, double>(11, Obs11));

  //sort the TopJets in Et
  std::sort(TopJets.begin(), TopJets.end(), EtComparator);

  // Circularity of the event

  double N = 0, D = 0, C_tmp = 0, C = 10000;
  double N_NoNu = 0, D_NoNu = 0, C_NoNu_tmp = 0, C_NoNu = 10000;
  double nx, ny, nz;

  // C = 2min(E(pt.n)^2/E(pt)^2) = 2*N/D but it is theorically preferable to use C'=PI/2*min(E|pt.n|/E|pt|), sum over all jets+lepton+MET (cf PhysRevD 48 R3953(Nov 1993))

  for (unsigned int i = 0; i < 4; i++) {
    D += fabs(TopJets[i].pt());
  }
  // modified the 26th of September to calculate also the circularity without the neutrino contribution
  D += fabs(Lept->Pt());
  D_NoNu = D;
  D += fabs(Lepn->Pt());

  if ((D > 0)) {
    // Loop over all the unit vectors in the transverse plane in order to find the miminum :
    for (unsigned int i = 0; i < 720; i++) {
      nx = cos((2 * PI / 720) * i);
      ny = sin((2 * PI / 720) * i);
      nz = 0;
      N = 0;

      for (unsigned int i = 0; i < 4; i++) {
        N += fabs(TopJets[i].px() * nx + TopJets[i].py() * ny + TopJets[i].pz() * nz);
      }
      // modified the 26th of September to calculate also the circularity without the neutrino contribution
      N += fabs(Lept->Px() * nx + Lept->Py() * ny + Lept->Pz() * nz);
      N_NoNu = N;
      N += fabs(Lepn->Px() * nx + Lepn->Py() * ny + Lepn->Pz() * nz);

      C_tmp = 2 * N / D;

      // modified the 26th of September to calculate also the circularity without the neutrino contribution
      C_NoNu_tmp = 2 * N_NoNu / D_NoNu;

      if (C_tmp < C)
        C = C_tmp;

      // modified the 26th of September to calculate also the circularity without the neutrino contribution
      if (C_NoNu_tmp < C_NoNu)
        C_NoNu = C_NoNu_tmp;
    }
  }

  double Obs12 = (C != 10000 ? C : 0);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(12, Obs12));
  if (DEBUG)
    std::cout << "------ LR observable 12 " << Obs12 << " calculated ------" << std::endl;

  // Circularity of the event without neutrino

  double Obs13 = (C_NoNu != 10000 ? C_NoNu : 0);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(13, Obs13));
  if (DEBUG)
    std::cout << "------ LR observable 13 " << Obs13 << " calculated ------" << std::endl;

  // Centrality of the four highest jets

  double H = 0;
  for (unsigned int i = 0; i < 4; i++) {
    H += TopJets[i].energy();
  }

  double Obs14 = HT / H;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(14, Obs14));
  if (DEBUG)
    std::cout << "------ LR observable 14 " << Obs14 << " calculated ------" << std::endl;

  // Sphericity and Aplanarity without boosting back the system to CM frame

  TMatrixDSym Matrix(3);

  double PX2 = std::pow(Hadp->Px(), 2) + std::pow(Hadq->Px(), 2) + std::pow(Hadb->Px(), 2) + std::pow(Lepb->Px(), 2) +
               std::pow(Lept->Px(), 2) + std::pow(Lepn->Px(), 2);
  double PY2 = std::pow(Hadp->Py(), 2) + std::pow(Hadq->Py(), 2) + std::pow(Hadb->Py(), 2) + std::pow(Lepb->Py(), 2) +
               std::pow(Lept->Py(), 2) + std::pow(Lepn->Py(), 2);
  double PZ2 = std::pow(Hadp->Pz(), 2) + std::pow(Hadq->Pz(), 2) + std::pow(Hadb->Pz(), 2) + std::pow(Lepb->Pz(), 2) +
               std::pow(Lept->Pz(), 2) + std::pow(Lepn->Pz(), 2);

  double P2 = PX2 + PY2 + PZ2;

  double PXY = Hadp->Px() * Hadp->Py() + Hadq->Px() * Hadq->Py() + Hadb->Px() * Hadb->Py() + Lepb->Px() * Lepb->Py() +
               Lept->Px() * Lept->Py() + Lepn->Px() * Lepn->Py();
  double PXZ = Hadp->Px() * Hadp->Pz() + Hadq->Px() * Hadq->Pz() + Hadb->Px() * Hadb->Pz() + Lepb->Px() * Lepb->Pz() +
               Lept->Px() * Lept->Pz() + Lepn->Px() * Lepn->Pz();
  double PYZ = Hadp->Py() * Hadp->Pz() + Hadq->Py() * Hadq->Pz() + Hadb->Py() * Hadb->Pz() + Lepb->Py() * Lepb->Pz() +
               Lept->Py() * Lept->Pz() + Lepn->Py() * Lepn->Pz();

  Matrix(0, 0) = PX2 / P2;
  Matrix(0, 1) = PXY / P2;
  Matrix(0, 2) = PXZ / P2;
  Matrix(1, 0) = PXY / P2;
  Matrix(1, 1) = PY2 / P2;
  Matrix(1, 2) = PYZ / P2;
  Matrix(2, 0) = PXZ / P2;
  Matrix(2, 1) = PYZ / P2;
  Matrix(2, 2) = PZ2 / P2;

  TMatrixDSymEigen pTensor(Matrix);

  std::vector<double> EigValues;
  EigValues.clear();
  for (int i = 0; i < 3; i++) {
    EigValues.push_back(pTensor.GetEigenValues()[i]);
  }

  std::sort(EigValues.begin(), EigValues.end(), dComparator);

  double Sphericity = 1.5 * (EigValues[1] + EigValues[2]);
  double Aplanarity = 1.5 * EigValues[2];

  double Obs15 = (edm::isNotFinite(Sphericity) ? 0 : Sphericity);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(15, Obs15));
  if (DEBUG)
    std::cout << "------ LR observable 15 " << Obs15 << " calculated ------" << std::endl;

  double Obs16 = (edm::isNotFinite(Aplanarity) ? 0 : Aplanarity);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(16, Obs16));
  if (DEBUG)
    std::cout << "------ LR observable 16 " << Obs16 << " calculated ------" << std::endl;

  // Sphericity and Aplanarity with boosting back the system to CM frame

  TVector3 BoostBackToCM = -(TtbarSystem.BoostVector());
  Hadp->Boost(BoostBackToCM);
  Hadq->Boost(BoostBackToCM);
  Hadb->Boost(BoostBackToCM);
  Lepb->Boost(BoostBackToCM);
  Lept->Boost(BoostBackToCM);
  Lepn->Boost(BoostBackToCM);

  double BOOST_PX2 = std::pow(Hadp->Px(), 2) + std::pow(Hadq->Px(), 2) + std::pow(Hadb->Px(), 2) +
                     std::pow(Lepb->Px(), 2) + std::pow(Lept->Px(), 2) + std::pow(Lepn->Px(), 2);
  double BOOST_PY2 = std::pow(Hadp->Py(), 2) + std::pow(Hadq->Py(), 2) + std::pow(Hadb->Py(), 2) +
                     std::pow(Lepb->Py(), 2) + std::pow(Lept->Py(), 2) + std::pow(Lepn->Py(), 2);
  double BOOST_PZ2 = std::pow(Hadp->Pz(), 2) + std::pow(Hadq->Pz(), 2) + std::pow(Hadb->Pz(), 2) +
                     std::pow(Lepb->Pz(), 2) + std::pow(Lept->Pz(), 2) + std::pow(Lepn->Pz(), 2);

  double BOOST_P2 = BOOST_PX2 + BOOST_PY2 + BOOST_PZ2;

  double BOOST_PXY = Hadp->Px() * Hadp->Py() + Hadq->Px() * Hadq->Py() + Hadb->Px() * Hadb->Py() +
                     Lepb->Px() * Lepb->Py() + Lept->Px() * Lept->Py() + Lepn->Px() * Lepn->Py();
  double BOOST_PXZ = Hadp->Px() * Hadp->Pz() + Hadq->Px() * Hadq->Pz() + Hadb->Px() * Hadb->Pz() +
                     Lepb->Px() * Lepb->Pz() + Lept->Px() * Lept->Pz() + Lepn->Px() * Lepn->Pz();
  double BOOST_PYZ = Hadp->Py() * Hadp->Pz() + Hadq->Py() * Hadq->Pz() + Hadb->Py() * Hadb->Pz() +
                     Lepb->Py() * Lepb->Pz() + Lept->Py() * Lept->Pz() + Lepn->Py() * Lepn->Pz();

  TMatrixDSym BOOST_Matrix(3);

  BOOST_Matrix(0, 0) = BOOST_PX2 / BOOST_P2;
  BOOST_Matrix(0, 1) = BOOST_PXY / BOOST_P2;
  BOOST_Matrix(0, 2) = BOOST_PXZ / BOOST_P2;
  BOOST_Matrix(1, 0) = BOOST_PXY / BOOST_P2;
  BOOST_Matrix(1, 1) = BOOST_PY2 / BOOST_P2;
  BOOST_Matrix(1, 2) = BOOST_PYZ / BOOST_P2;
  BOOST_Matrix(2, 0) = BOOST_PXZ / BOOST_P2;
  BOOST_Matrix(2, 1) = BOOST_PYZ / BOOST_P2;
  BOOST_Matrix(2, 2) = BOOST_PZ2 / BOOST_P2;

  TMatrixDSymEigen BOOST_pTensor(BOOST_Matrix);

  std::vector<double> BOOST_EigValues;
  BOOST_EigValues.clear();
  for (int i = 0; i < 3; i++) {
    BOOST_EigValues.push_back(BOOST_pTensor.GetEigenValues()[i]);
  }

  std::sort(BOOST_EigValues.begin(), BOOST_EigValues.end(), dComparator);

  double BOOST_Sphericity = 1.5 * (BOOST_EigValues[1] + BOOST_EigValues[2]);
  double BOOST_Aplanarity = 1.5 * BOOST_EigValues[2];

  double Obs17 = (edm::isNotFinite(BOOST_Sphericity) ? 0 : BOOST_Sphericity);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(17, Obs17));
  if (DEBUG)
    std::cout << "------ LR observable 17 " << Obs17 << " calculated ------" << std::endl;

  double Obs18 = (edm::isNotFinite(BOOST_Aplanarity) ? 0 : BOOST_Aplanarity);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(18, Obs18));
  if (DEBUG)
    std::cout << "------ LR observable 18 " << Obs18 << " calculated ------" << std::endl;

  //ratio between ET of the fifth jet and HT

  double Obs19 = (TopJets.size() > 4) ? TopJets[4].et() / HT : 1.0;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(19, Obs19));
  if (DEBUG)
    std::cout << "------ LR observable 19 " << Obs19 << " calculated ------" << std::endl;

  // HT variable calculated with all the jets in the event.

  double HT_alljets = 0;
  double H_alljets = 0;
  for (unsigned int i = 0; i < TopJets.size(); i++) {
    HT_alljets += TopJets[i].et();
    H_alljets += TopJets[i].energy();
  }
  double Obs20 = HT_alljets;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(20, Obs20));
  if (DEBUG)
    std::cout << "------ LR observable 20 " << Obs20 << " calculated ------" << std::endl;

  // HT3 = HT calculated with all jets except the two leading jets

  double HT3_alljets = 0;
  for (unsigned int i = 2; i < TopJets.size(); i++) {
    HT3_alljets += TopJets[i].et();
  }
  double Obs21 = HT3_alljets;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(21, Obs21));
  if (DEBUG)
    std::cout << "------ LR observable 21 " << Obs21 << " calculated ------" << std::endl;

  // ET0, ratio of the Et of the leading and HT_alljets

  double ET0 = TopJets[0].et() / HT_alljets;
  double Obs22 = ET0;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(22, Obs22));
  if (DEBUG)
    std::cout << "------ LR observable 22 " << Obs22 << " calculated ------" << std::endl;

  // Centrality of the event computed with all jets

  double Obs23 = ((H_alljets > 0) ? HT_alljets / H_alljets : 0);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(23, Obs23));
  if (DEBUG)
    std::cout << "------ LR observable 23 " << Obs23 << " calculated ------" << std::endl;

  //Fox-Wolfram momenta (1st to 6th), modified for hadron collider and using a Legendre polynomials expansion

  double FW_momentum_0 = 0, FW_momentum_1 = 0, FW_momentum_2 = 0, FW_momentum_3 = 0, FW_momentum_4 = 0,
         FW_momentum_5 = 0, FW_momentum_6 = 0;

  for (unsigned int i = 0; i < TopJets.size(); i++) {
    for (unsigned int j = 0; j < TopJets.size(); j++) {
      double ET_ij_over_ETSum2 = TopJets[i].et() * TopJets[j].et() / (std::pow(HT_alljets, 2));
      double cosTheta_ij =
          (TopJets[i].px() * TopJets[j].px() + TopJets[i].py() * TopJets[j].py() + TopJets[i].pz() * TopJets[j].pz()) /
          (TopJets[i].p4().R() * TopJets[j].p4().R());
      FW_momentum_0 += ET_ij_over_ETSum2;
      FW_momentum_1 += ET_ij_over_ETSum2 * cosTheta_ij;
      FW_momentum_2 += ET_ij_over_ETSum2 * 0.5 * (3 * std::pow(cosTheta_ij, 2) - 1);
      FW_momentum_3 += ET_ij_over_ETSum2 * 0.5 * (5 * std::pow(cosTheta_ij, 3) - 3 * cosTheta_ij);
      FW_momentum_4 += ET_ij_over_ETSum2 * 0.125 * (35 * std::pow(cosTheta_ij, 4) - 30 * std::pow(cosTheta_ij, 2) + 3);
      FW_momentum_5 += ET_ij_over_ETSum2 * 0.125 *
                       (63 * std::pow(cosTheta_ij, 5) - 70 * std::pow(cosTheta_ij, 3) + 15 * cosTheta_ij);
      FW_momentum_6 +=
          ET_ij_over_ETSum2 * 0.0625 *
          (231 * std::pow(cosTheta_ij, 6) - 315 * std::pow(cosTheta_ij, 4) + 105 * std::pow(cosTheta_ij, 2) - 5);
    }
  }

  double Obs24 = FW_momentum_0;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(24, Obs24));
  if (DEBUG)
    std::cout << "------ LR observable 24 " << Obs24 << " calculated ------" << std::endl;
  double Obs25 = FW_momentum_1;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(25, Obs25));
  if (DEBUG)
    std::cout << "------ LR observable 25 " << Obs25 << " calculated ------" << std::endl;
  double Obs26 = FW_momentum_2;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(26, Obs26));
  if (DEBUG)
    std::cout << "------ LR observable 26 " << Obs26 << " calculated ------" << std::endl;
  double Obs27 = FW_momentum_3;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(27, Obs27));
  if (DEBUG)
    std::cout << "------ LR observable 27 " << Obs27 << " calculated ------" << std::endl;
  double Obs28 = FW_momentum_4;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(28, Obs28));
  if (DEBUG)
    std::cout << "------ LR observable 28 " << Obs28 << " calculated ------" << std::endl;
  double Obs29 = FW_momentum_5;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(29, Obs29));
  if (DEBUG)
    std::cout << "------ LR observable 29 " << Obs29 << " calculated ------" << std::endl;
  double Obs30 = FW_momentum_6;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(30, Obs30));
  if (DEBUG)
    std::cout << "------ LR observable 30 " << Obs30 << " calculated ------" << std::endl;

  // Thrust, thrust major and thrust minor

  TVector3 n(0, 0, 0), n_tmp(0, 0, 0);

  double Thrust_D = 0, Thrust_N = 0;
  double Thrust = -1, Thrust_tmp = 0;
  double Thrust_Major = -1, Thrust_Major_tmp = 0;
  double Thrust_Minor = -1;

  for (unsigned int i = 0; i < TopJets.size(); i++) {
    Thrust_D += TopJets[i].p();
  }

  Thrust_D += Lept->P();

  if (Thrust_D > 0) {
    // Calculation of the thrust :
    for (unsigned int i = 0; i < 720; i++) {
      for (unsigned int j = 0; j < 360; j++) {
        n_tmp.SetX(cos((2 * PI / 720) * i) * sin((PI / 360) * j));
        n_tmp.SetY(sin((2 * PI / 720) * i) * sin((PI / 360) * j));
        n_tmp.SetZ(cos((PI / 360) * j));

        for (unsigned int k = 0; k < TopJets.size(); k++) {
          Thrust_N +=
              fabs(TopJets[k].px() * (n_tmp.x()) + TopJets[k].py() * (n_tmp.y()) + TopJets[k].pz() * (n_tmp.z()));
        }
        Thrust_N += fabs(Lept->Px() * (n_tmp.x()) + Lept->Py() * (n_tmp.y()) + Lept->Pz() * (n_tmp.z()));

        Thrust_tmp = Thrust_N / Thrust_D;

        Thrust_N = 0;
        if (Thrust_tmp > Thrust) {
          Thrust = Thrust_tmp;
          n.SetXYZ(n_tmp.x(), n_tmp.y(), n_tmp.z());
        }
      }
    }

    // Calculation of the thrust major :
    TVector3 nT = n.Orthogonal();
    nT = nT.Unit();
    for (unsigned int i = 0; i < 720; i++) {
      nT.Rotate((2 * PI / 720) * i, n);
      for (unsigned int j = 0; j < TopJets.size(); j++) {
        Thrust_N += fabs(TopJets[j].px() * (nT.x()) + TopJets[j].py() * (nT.y()) + TopJets[j].pz() * (nT.z()));
      }
      Thrust_N += fabs(Lept->Px() * nT.x() + Lept->Py() * (nT.y()) + Lept->Pz() * (nT.z()));

      Thrust_Major_tmp = Thrust_N / Thrust_D;
      Thrust_N = 0;

      if (Thrust_Major_tmp > Thrust_Major) {
        Thrust_Major = Thrust_Major_tmp;
      }
    }

    // Calculation of the thrust minor :

    TVector3 nMinor = nT.Cross(n);
    nMinor = nMinor.Unit();

    for (unsigned int i = 0; i < TopJets.size(); i++) {
      Thrust_N +=
          fabs(TopJets[i].px() * (nMinor.x()) + TopJets[i].py() * (nMinor.y()) + TopJets[i].pz() * (nMinor.z()));
    }
    Thrust_N += fabs(Lept->Px() * nMinor.x() + Lept->Py() * (nMinor.y()) + Lept->Pz() * (nMinor.z()));

    Thrust_Minor = Thrust_N / Thrust_D;
  }

  double Obs31 = Thrust;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(31, Obs31));
  if (DEBUG)
    std::cout << "------ LR observable 31 " << Obs31 << " calculated ------" << std::endl;
  double Obs32 = Thrust_Major;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(32, Obs32));
  if (DEBUG)
    std::cout << "------ LR observable 32 " << Obs32 << " calculated ------" << std::endl;
  double Obs33 = Thrust_Minor;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(33, Obs33));
  if (DEBUG)
    std::cout << "------ LR observable 33 " << Obs33 << " calculated ------" << std::endl;

  // Oblateness

  double Obs34 = Thrust_Major - Thrust_Minor;
  evtselectVarVal.push_back(std::pair<unsigned int, double>(34, Obs34));
  if (DEBUG)
    std::cout << "------ LR observable 34 " << Obs34 << " calculated ------" << std::endl;

  // Sphericity and Aplanarity without boosting back the system to CM frame and without neutrino

  TMatrixDSym Matrix_NoNu(3);

  double PX2_NoNu = std::pow(Hadp->Px(), 2) + std::pow(Hadq->Px(), 2) + std::pow(Hadb->Px(), 2) +
                    std::pow(Lepb->Px(), 2) + std::pow(Lept->Px(), 2);
  double PY2_NoNu = std::pow(Hadp->Py(), 2) + std::pow(Hadq->Py(), 2) + std::pow(Hadb->Py(), 2) +
                    std::pow(Lepb->Py(), 2) + std::pow(Lept->Py(), 2);
  double PZ2_NoNu = std::pow(Hadp->Pz(), 2) + std::pow(Hadq->Pz(), 2) + std::pow(Hadb->Pz(), 2) +
                    std::pow(Lepb->Pz(), 2) + std::pow(Lept->Pz(), 2);

  double P2_NoNu = PX2_NoNu + PY2_NoNu + PZ2_NoNu;

  double PXY_NoNu = Hadp->Px() * Hadp->Py() + Hadq->Px() * Hadq->Py() + Hadb->Px() * Hadb->Py() +
                    Lepb->Px() * Lepb->Py() + Lept->Px() * Lept->Py();
  double PXZ_NoNu = Hadp->Px() * Hadp->Pz() + Hadq->Px() * Hadq->Pz() + Hadb->Px() * Hadb->Pz() +
                    Lepb->Px() * Lepb->Pz() + Lept->Px() * Lept->Pz();
  double PYZ_NoNu = Hadp->Py() * Hadp->Pz() + Hadq->Py() * Hadq->Pz() + Hadb->Py() * Hadb->Pz() +
                    Lepb->Py() * Lepb->Pz() + Lept->Py() * Lept->Pz();

  Matrix_NoNu(0, 0) = PX2_NoNu / P2_NoNu;
  Matrix_NoNu(0, 1) = PXY_NoNu / P2_NoNu;
  Matrix_NoNu(0, 2) = PXZ_NoNu / P2_NoNu;
  Matrix_NoNu(1, 0) = PXY_NoNu / P2_NoNu;
  Matrix_NoNu(1, 1) = PY2_NoNu / P2_NoNu;
  Matrix_NoNu(1, 2) = PYZ_NoNu / P2_NoNu;
  Matrix_NoNu(2, 0) = PXZ_NoNu / P2_NoNu;
  Matrix_NoNu(2, 1) = PYZ_NoNu / P2_NoNu;
  Matrix_NoNu(2, 2) = PZ2_NoNu / P2_NoNu;

  TMatrixDSymEigen pTensor_NoNu(Matrix_NoNu);

  std::vector<double> EigValues_NoNu;
  EigValues_NoNu.clear();
  for (int i = 0; i < 3; i++) {
    EigValues_NoNu.push_back(pTensor_NoNu.GetEigenValues()[i]);
  }

  std::sort(EigValues_NoNu.begin(), EigValues_NoNu.end(), dComparator);

  double Sphericity_NoNu = 1.5 * (EigValues_NoNu[1] + EigValues_NoNu[2]);
  double Aplanarity_NoNu = 1.5 * EigValues_NoNu[2];

  double Obs35 = (edm::isNotFinite(Sphericity_NoNu) ? 0 : Sphericity_NoNu);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(35, Obs35));
  if (DEBUG)
    std::cout << "------ LR observable 35 " << Obs35 << " calculated ------" << std::endl;

  double Obs36 = (edm::isNotFinite(Aplanarity_NoNu) ? 0 : Aplanarity_NoNu);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(36, Obs36));
  if (DEBUG)
    std::cout << "------ LR observable 36 " << Obs36 << " calculated ------" << std::endl;

  // Sphericity and Aplanarity without boosting back the system to CM frame and without neutrino or lepton

  TMatrixDSym Matrix_NoNuNoLep(3);

  double PX2_NoNuNoLep =
      std::pow(Hadp->Px(), 2) + std::pow(Hadq->Px(), 2) + std::pow(Hadb->Px(), 2) + std::pow(Lepb->Px(), 2);
  double PY2_NoNuNoLep =
      std::pow(Hadp->Py(), 2) + std::pow(Hadq->Py(), 2) + std::pow(Hadb->Py(), 2) + std::pow(Lepb->Py(), 2);
  double PZ2_NoNuNoLep =
      std::pow(Hadp->Pz(), 2) + std::pow(Hadq->Pz(), 2) + std::pow(Hadb->Pz(), 2) + std::pow(Lepb->Pz(), 2);

  double P2_NoNuNoLep = PX2_NoNuNoLep + PY2_NoNuNoLep + PZ2_NoNuNoLep;

  double PXY_NoNuNoLep =
      Hadp->Px() * Hadp->Py() + Hadq->Px() * Hadq->Py() + Hadb->Px() * Hadb->Py() + Lepb->Px() * Lepb->Py();
  double PXZ_NoNuNoLep =
      Hadp->Px() * Hadp->Pz() + Hadq->Px() * Hadq->Pz() + Hadb->Px() * Hadb->Pz() + Lepb->Px() * Lepb->Pz();
  double PYZ_NoNuNoLep =
      Hadp->Py() * Hadp->Pz() + Hadq->Py() * Hadq->Pz() + Hadb->Py() * Hadb->Pz() + Lepb->Py() * Lepb->Pz();

  Matrix_NoNuNoLep(0, 0) = PX2_NoNuNoLep / P2_NoNuNoLep;
  Matrix_NoNuNoLep(0, 1) = PXY_NoNuNoLep / P2_NoNuNoLep;
  Matrix_NoNuNoLep(0, 2) = PXZ_NoNuNoLep / P2_NoNuNoLep;
  Matrix_NoNuNoLep(1, 0) = PXY_NoNuNoLep / P2_NoNuNoLep;
  Matrix_NoNuNoLep(1, 1) = PY2_NoNuNoLep / P2_NoNuNoLep;
  Matrix_NoNuNoLep(1, 2) = PYZ_NoNuNoLep / P2_NoNuNoLep;
  Matrix_NoNuNoLep(2, 0) = PXZ_NoNuNoLep / P2_NoNuNoLep;
  Matrix_NoNuNoLep(2, 1) = PYZ_NoNuNoLep / P2_NoNuNoLep;
  Matrix_NoNuNoLep(2, 2) = PZ2_NoNuNoLep / P2_NoNuNoLep;

  TMatrixDSymEigen pTensor_NoNuNoLep(Matrix_NoNuNoLep);

  std::vector<double> EigValues_NoNuNoLep;
  EigValues_NoNuNoLep.clear();
  for (int i = 0; i < 3; i++) {
    EigValues_NoNuNoLep.push_back(pTensor_NoNuNoLep.GetEigenValues()[i]);
  }

  std::sort(EigValues_NoNuNoLep.begin(), EigValues_NoNuNoLep.end(), dComparator);

  double Sphericity_NoNuNoLep = 1.5 * (EigValues_NoNuNoLep[1] + EigValues_NoNuNoLep[2]);
  double Aplanarity_NoNuNoLep = 1.5 * EigValues_NoNuNoLep[2];

  double Obs37 = (edm::isNotFinite(Sphericity_NoNuNoLep) ? 0 : Sphericity_NoNuNoLep);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(37, Obs37));
  if (DEBUG)
    std::cout << "------ LR observable 37 " << Obs37 << " calculated ------" << std::endl;

  double Obs38 = (edm::isNotFinite(Aplanarity_NoNuNoLep) ? 0 : Aplanarity_NoNuNoLep);
  evtselectVarVal.push_back(std::pair<unsigned int, double>(38, Obs38));
  if (DEBUG)
    std::cout << "------ LR observable 38 " << Obs38 << " calculated ------" << std::endl;

  // Put the vector in the TtSemiEvtSolution
  TS.setLRSignalEvtObservables(evtselectVarVal);
  if (DEBUG)
    std::cout << "------  Observable values stored in the event  ------" << std::endl;

  delete Hadp;
  if (DEBUG)
    std::cout << "------     Pointer to Hadp deleted             ------" << std::endl;
  delete Hadq;
  if (DEBUG)
    std::cout << "------     Pointer to Hadq deleted             ------" << std::endl;
  delete Hadb;
  if (DEBUG)
    std::cout << "------     Pointer to Hadb deleted             ------" << std::endl;
  delete Lepb;
  if (DEBUG)
    std::cout << "------     Pointer to Lepb deleted      ------" << std::endl;
  delete Lept;
  if (DEBUG)
    std::cout << "------     Pointer to Lepn deleted      ------" << std::endl;
  delete Lepn;
  if (DEBUG)
    std::cout << "------     Pointer to Mez deleted       ------" << std::endl;
  delete Mez;

  if (DEBUG)
    std::cout << "------------ LR observables calculated -----------" << std::endl;
}

Member Data Documentation

BdiscComparator

CompareBdisc TtSemiLRSignalSelObservables::BdiscComparator

private

Definition at line 53 of file TtSemiLRSignalSelObservables.h.

Referenced by operator()().

dComparator

CompareDouble TtSemiLRSignalSelObservables::dComparator

private

Definition at line 60 of file TtSemiLRSignalSelObservables.h.

Referenced by operator()().

EtComparator

CompareET TtSemiLRSignalSelObservables::EtComparator

private

Definition at line 44 of file TtSemiLRSignalSelObservables.h.

Referenced by operator()().

evtselectVarVal

std::vector<std::pair<unsigned int, double> > TtSemiLRSignalSelObservables::evtselectVarVal

private

Definition at line 37 of file TtSemiLRSignalSelObservables.h.

Referenced by operator()().