double TtbarHypothesis::M3() const {
JetCollection jets;
jets.clear();
jets.push_back(jet1FromW);
jets.push_back(jet2FromW);
jets.push_back(leptonicBjet);
jets.push_back(hadronicBJet);
return M3(jets);
}
JetCollection BTagWeight::getUDSGJets(const JetCollection& jets) const {
JetCollection udsgjets;
for (unsigned int index = 0; index < jets.size(); ++index) {
if (abs(jets.at(index).partonFlavour()) != 4 && abs(jets.at(index).partonFlavour()) != 5) //not a c- or b-quark
udsgjets.push_back(jets.at(index));
}
return udsgjets;
}
JetCollection BTagWeight::getCJets(const JetCollection& jets) const {
JetCollection cjets;
for (unsigned int index = 0; index < jets.size(); ++index) {
if (abs(jets.at(index).partonFlavour()) == 4) //c-quark
cjets.push_back(jets.at(index));
}
return cjets;
}
JetCollection BTagWeight::getBJets(const JetCollection jets) const {
JetCollection bjets;
for (unsigned int index = 0; index < jets.size(); ++index) {
if (abs(jets.at(index)->partonFlavour()) == 5) //b-quark
bjets.push_back(jets.at(index));
}
return bjets;
}
JetCollection Event::GetBJetCollection(const JetCollection& jets, BtagAlgorithm::value btagAlgorithm,
BtagAlgorithm::workingPoint WP) const {
JetCollection bjets;
for (unsigned int index = 0; index < jets.size(); ++index) {
const JetPointer jet = jets.at(index);
if (jet->isBJet(btagAlgorithm, WP))
bjets.push_back(jet);
}
return bjets;
}
const JetCollection TopPairEMuReferenceSelection::cleanedBJets(const EventPtr event) const {
const JetCollection jets(cleanedJets(event));
JetCollection cleanedBJets;
for (unsigned int index = 0; index < jets.size(); ++index) {
const JetPointer jet(jets.at(index));
if (isBJet(jet))
cleanedBJets.push_back(jet);
}
return cleanedBJets;
}
const JetCollection TopPairMuPlusJetsReferenceSelection2011::cleanedJets(const EventPtr event) const {
const JetCollection jets(event->Jets());
JetCollection cleanedJets;
if (!hasExactlyOneIsolatedLepton(event)) //if no signal lepton is found, can't clean jets, return them all!
return jets;
const LeptonPointer lepton(signalLepton(event));
for (unsigned int index = 0; index < jets.size(); ++index) {
const JetPointer jet(jets.at(index));
if (!jet->isWithinDeltaR(0.3, lepton))
cleanedJets.push_back(jet);
}
return cleanedJets;
}
const JetCollection TopPairEMuReferenceSelection::cleanedJets(const EventPtr event) const {
const JetCollection jets(event->Jets());
JetCollection cleanedJets;
//if no signal lepton is found, can't clean jets, return them all!
if (!passesDiLeptonSelection(event))
return jets;
const PhotonCollection photons(signalPhotons(event));
const ElectronCollection electrons(signalElectrons(event));
const MuonCollection muons(signalMuons(event));
double minDR = 999999999.;
double minDR_pho = 999999999.;
for (unsigned int index = 0; index < jets.size(); ++index) {
const JetPointer jet(jets.at(index));
for (unsigned int lep = 0; lep < electrons.size(); lep++){
const LeptonPointer lepton(electrons.at(lep));
if(jet->deltaR(lepton) < minDR)
minDR = jet->deltaR(lepton);
}
for (unsigned int lep = 0; lep < muons.size(); lep++){
const LeptonPointer lepton(muons.at(lep));
if(jet->deltaR(lepton) < minDR)
minDR = jet->deltaR(lepton);
}
for (unsigned int pho = 0; pho < photons.size(); pho++){
const PhotonPointer photon(photons.at(pho));
if(jet->deltaR(photon) < minDR_pho)
minDR_pho = jet->deltaR(photon);
}
if (minDR > 0.5 && minDR_pho > 0.3 && isGoodJet(jet))
cleanedJets.push_back(jet);
}
return cleanedJets;
}
bool HLTriggerQCDAnalyser::passesTriggerAnalysisSelection(const EventPtr event) const {
const ElectronCollection electrons(event->Electrons());
const JetCollection jets(event->Jets());
if (electrons.size() == 0 || jets.size() < 3)
return false;
unsigned int nElectrons(0);
for (unsigned int index = 0; index < electrons.size(); ++index) {
const ElectronPointer electron(electrons.at(index));
if (fabs(electron->eta()) < 2.5 && electron->pt() > 20)
++nElectrons;
//if more than 2 electrons passing the selection of > 20GeV, reject event
}
const ElectronPointer mostEnergeticElectron(electrons.front());
//clean jets against electron
JetCollection cleanedJets;
for (unsigned int index = 0; index < jets.size(); ++index) {
const JetPointer jet(jets.at(index));
if (!jet->isWithinDeltaR(0.3, mostEnergeticElectron))
cleanedJets.push_back(jet);
}
unsigned int nCleanedJetsAbove30GeV(0), nCleanedJetsAbove45GeV(0);
for (unsigned int index = 0; index < cleanedJets.size(); ++index) {
const JetPointer jet(cleanedJets.at(index));
if (jet->pt() > 45.)
++nCleanedJetsAbove45GeV;
if (jet->pt() > 30.)
++nCleanedJetsAbove30GeV;
}
return nElectrons == 1
&& (nCleanedJetsAbove45GeV >= 3
|| (nCleanedJetsAbove45GeV >= 2 && nCleanedJetsAbove30GeV >= 3 && event->runnumber() >= 194270));
}
BAT::TtbarHypothesis HitFitAnalyser::analyseAndReturn(const EventPtr event, const JetCollection jets, const JetCollection bjets, const LeptonPointer selectedLepton ) {
weight_ = event->weight() * prescale_ * scale_;
treeMan_->setCurrentFolder(histogramFolder_);
treeMan_->Fill("EventWeight", weight_ );
// const JetCollection jets(event->getCleanedJets( SelectionCriteria::ElectronPlusJetsReference ));
// const JetCollection bJets(event->getCleanedBJets( SelectionCriteria::ElectronPlusJetsReference ));
// const LeptonPointer selectedLepton = event->getSignalLepton( SelectionCriteria::ElectronPlusJetsReference );
string metPrefix = METAlgorithm::names.at(0);
const METPointer met(event->MET((METAlgorithm::value) 0));
// Get cleaned jets that aren't b tagged
JetCollection leadingLightJets;
JetCollection leadingBJets;
unsigned int maxNJet = std::min(5, int(jets.size()));
for ( unsigned int jetIndex=0; jetIndex < maxNJet; ++jetIndex ) {
bool isBJet = false;
JetPointer thisJet = jets[jetIndex];
for ( unsigned int bJetIndex=0; bJetIndex < bjets.size(); ++bJetIndex ) {
JetPointer thisBJet = bjets[bJetIndex];
if ( thisJet == thisBJet ) {
isBJet = true;
break;
}
}
if ( !isBJet ) leadingLightJets.push_back( thisJet );
else leadingBJets.push_back( thisJet );
}
//set MC matching flag
if (event->getDataType() == DataType::TTJets_amcatnloFXFX)
do_MC_matching = true;
else
do_MC_matching = false;
//prepare the jets collection
// Copy jets into an array
JetCollection jetCopy;
for (JetCollection::const_iterator j = leadingLightJets.begin(); j != leadingLightJets.end(); ++j) {
jetCopy.push_back(*j);
}
JetCollection bJetCopy;
for (JetCollection::const_iterator j = leadingBJets.begin(); j != leadingBJets.end(); ++j) {
bJetCopy.push_back(*j);
}
std::sort(jetCopy.begin(), jetCopy.end(), jetPtComp);
std::sort(bJetCopy.begin(), bJetCopy.end(), jetPtComp);
jetsForFitting.clear();
unsigned numJetsToFit = jetCopy.size();
if (jetCopy.size() >= 2) {
if (numJetsToFit > 5)
numJetsToFit = 5;
jetsForFitting.insert(jetsForFitting.begin(), jetCopy.begin(), jetCopy.begin() + numJetsToFit);
}
bJetsForFitting.clear();
numJetsToFit = bJetCopy.size();
if (bJetCopy.size() >= 2) {
if (numJetsToFit > 5)
numJetsToFit = 5;
bJetsForFitting.insert(bJetsForFitting.begin(), bJetCopy.begin(), bJetCopy.begin() + numJetsToFit);
}
BatHitFit hhFitter(electronTranslator_, muonTranslator_, jetTranslator_, metTranslator_, hitfitDefault_,
hitfitLepWMass_, hitfitHadWMass_, hitfitTopMass_);
// Clear the internal state
hhFitter.clear();
// Add lepton into hitfit
if ( isElectronChannel_ ) {
const ElectronPointer signalElectron(boost::static_pointer_cast<Electron>(selectedLepton));
//TODO: fix the fitter to accept lepton class OR particle!!
hhFitter.AddLepton(*signalElectron);
}
else {
const MuonPointer signalMuon(boost::static_pointer_cast<Muon>(selectedLepton));
//TODO: fix the fitter to accept lepton class OR particle!!
hhFitter.AddLepton(*signalMuon);
}
// Add jets into HitFit
// Also check if jets matched to ttbar partons are in the jets passed to the fit
bool quarkInCollection = false, quarkBarInCollection = false, lebBInCollection = false, hadBInCollection = false;
for (size_t jet = 0; jet != jetsForFitting.size(); ++jet) {
hhFitter.AddJet(*jetsForFitting.at(jet));
// cout << "Adding light jet with csv : " << jetsForFitting.at(jet)->getBTagDiscriminator(BAT::BtagAlgorithm::value::CombinedSecondaryVertexV2) << endl;
if ( jetsForFitting.at(jet)->ttbar_decay_parton() ) {
int partonPdg = jetsForFitting.at(jet)->ttbar_decay_parton();
if ( partonPdg == 3 ) quarkInCollection = true;
else if ( partonPdg == 4 ) quarkBarInCollection = true;
else if ( partonPdg == 5 ) lebBInCollection = true;
else if ( partonPdg == 6 ) hadBInCollection = true;
}
}
for (size_t jet = 0; jet != bJetsForFitting.size(); ++jet) {
hhFitter.AddBJet(*bJetsForFitting.at(jet));
// cout << "Adding b jet with csv : " << bJetsForFitting.at(jet)->getBTagDiscriminator(BAT::BtagAlgorithm::value::CombinedSecondaryVertexV2) << endl;
if ( bJetsForFitting.at(jet)->ttbar_decay_parton() ) {
int partonPdg = bJetsForFitting.at(jet)->ttbar_decay_parton();
if ( partonPdg == 3 ) quarkInCollection = true;
else if ( partonPdg == 4 ) quarkBarInCollection = true;
else if ( partonPdg == 5 ) lebBInCollection = true;
else if ( partonPdg == 6 ) hadBInCollection = true;
}
}
// Check if jets matched to ttbar partons are in the jets passed to the fit
if (do_MC_matching) {
if ( quarkInCollection && quarkBarInCollection && lebBInCollection && hadBInCollection ) {
allTTBarJetsPassedToFit_ = true;
}
int lastTTBarJetPosition = positionOfLastTTBarJet( jets );
if ( lastTTBarJetPosition != -1 ) {
allTTBarJetsPassSelection_ = true;
treeMan_->Fill("PositionOfLastTTbarJet", lastTTBarJetPosition + 1 );
}
else treeMan_->Fill("PositionOfLastTTbarJet", lastTTBarJetPosition );
}
// Add missing transverse energy into HitFit
hhFitter.SetMet(*met);
// Container for input of all jet permutation of the event
std::vector<hitfit::Lepjets_Event> hitfitEventsInput;
// Container for results of the fit for all jet permutation of the event
std::vector<hitfit::Fit_Result> hitfitResult;
//
// R U N H I T F I T
//
// Run the kinematic fit and get how many permutations is possible
// in the fit
size_t nHitFit = hhFitter.FitAllPermutation();
// // Get the number of jets
// nHitFitJet = hhFitter.GetEvent().njets();
// Get the input events for all permutations
hitfitEventsInput = hhFitter.GetUnfittedEvent();
// Get the fit results for all permutations
hitfitResult = hhFitter.GetFitAllPermutation();
double bestChi2 = 999.;
unsigned bestX2pos = nHitFit + 1;
// // Loop over all permutations and extract the information
for (size_t fit = 0; fit != nHitFit; ++fit) {
// Get the event after the fit
hitfit::Fit_Result fitResult = hitfitResult[fit];
if (hitfitResult[fit].chisq() > 0.0) {
treeMan_->Fill("FitChiSquaredAllSolutions",fitResult.chisq());
}
// Is this the permutation with smallest chi2?
if (fitResult.chisq() > 0.0 && fitResult.chisq() < bestChi2) {
bestChi2 = fitResult.chisq();
bestX2pos = fit;
}
}
//
// END PART WHICH EXTRACTS INFORMATION FROM HITFIT
//
if (bestX2pos < nHitFit + 1) {
treeMan_->Fill("FitChiSquaredBestSolutions",hitfitResult[bestX2pos].chisq());
treeMan_->Fill("FitChiSquaredProbabilityBestSolutions",TMath::Prob(hitfitResult[bestX2pos].chisq(),1));
//pass hitfit event into BAT format
lepton_charge = selectedLepton->charge();
BAT::TtbarHypothesis newHyp = BatEvent(hitfitResult[bestX2pos].ev(), event, "SolutionCategory");
treeMan_->Fill("FittedLeptonicTopPtBestSolution", newHyp.leptonicTop->pt());
treeMan_->Fill("FittedHadronicTopPtBestSolution", newHyp.hadronicTop->pt());
treeMan_->Fill("FittedLeptonicTopRapidityBestSolution", newHyp.leptonicTop->rapidity());
treeMan_->Fill("FittedHadronicTopRapidityBestSolution", newHyp.hadronicTop->rapidity());
treeMan_->Fill("FittedTTbarMassBestSolution", newHyp.resonance->mass());
treeMan_->Fill("FittedTTbarPtBestSolution", newHyp.resonance->pt());
treeMan_->Fill("FittedTTbarRapidityBestSolution", newHyp.resonance->rapidity());
// Get the event before the fit
hitfit::Lepjets_Event unfittedEvent = hitfitEventsInput[bestX2pos];
// Now need to perform second kinematic fit
hitfit::Fit_Result secondFitResult = performSecondKinematicFit( unfittedEvent, event);
BAT::TtbarHypothesis newHyp_afterSecondFit = BatEvent(secondFitResult.ev(), event, "SolutionCategory_second");
treeMan_->Fill("FitChiSquaredBestSolutions_second",secondFitResult.chisq());
treeMan_->Fill("FitChiSquaredProbabilityBestSolutions_second",TMath::Prob(secondFitResult.chisq(),2));
treeMan_->Fill("FittedLeptonicTopPtBestSolution_second", newHyp_afterSecondFit.leptonicTop->pt());
treeMan_->Fill("FittedHadronicTopPtBestSolution_second", newHyp_afterSecondFit.hadronicTop->pt());
treeMan_->Fill("FittedLeptonicTopRapidityBestSolution_second", newHyp_afterSecondFit.leptonicTop->rapidity());
treeMan_->Fill("FittedHadronicTopRapidityBestSolution_second", newHyp_afterSecondFit.hadronicTop->rapidity());
treeMan_->Fill("FittedTTbarMassBestSolution_second", newHyp_afterSecondFit.resonance->mass());
treeMan_->Fill("FittedTTbarPtBestSolution_second", newHyp_afterSecondFit.resonance->pt());
treeMan_->Fill("FittedTTbarRapidityBestSolution_second", newHyp_afterSecondFit.resonance->rapidity());
return newHyp_afterSecondFit;
} else {
// cout << "No HitFit solution found for this event" << endl;
treeMan_->Fill("SolutionCategory", 0 );
treeMan_->Fill("SolutionCategory_second", 0);
}
return BAT::TtbarHypothesis();
}