Particle Flow Algorithm test bench for the electron team. More...
#include <PFAlgoTestBenchElectrons.h>
Public Member Functions | |
PFAlgoTestBenchElectrons () | |
constructor | |
virtual | ~PFAlgoTestBenchElectrons () |
destructor | |
Protected Member Functions | |
virtual void | processBlock (const reco::PFBlockRef &blockref, std::list< reco::PFBlockRef > &hcalBlockRefs, std::list< reco::PFBlockRef > &ecalBlockRefs) |
Particle Flow Algorithm test bench for the electron team.
Definition at line 18 of file PFAlgoTestBenchElectrons.h.
PFAlgoTestBenchElectrons::PFAlgoTestBenchElectrons | ( | ) | [inline] |
virtual PFAlgoTestBenchElectrons::~PFAlgoTestBenchElectrons | ( | ) | [inline, virtual] |
void PFAlgoTestBenchElectrons::processBlock | ( | const reco::PFBlockRef & | blockref, |
std::list< reco::PFBlockRef > & | hcalBlockRefs, | ||
std::list< reco::PFBlockRef > & | ecalBlockRefs | ||
) | [protected, virtual] |
process one block. can be reimplemented in more sophisticated algorithms
Reimplemented from PFAlgo.
Definition at line 466 of file PFAlgo.cc.
References a, abs, PFAlgo::associatePSClusters(), b, edm::OwnVector< T, P >::begin(), Association::block, alignmentValidation::c1, PFAlgo::calibration_, dtNoiseDBValidation_cfg::cerr, CastorDataFrameFilter_impl::check(), gather_cfg::cout, PFAlgo::debug_, PFAlgo::dptRel_DispVtx_, ECAL, reco::PFBlockElement::ECAL, asciidump::elements, reco::PFCandidate::elementsInBlocks(), reco::LeafCandidate::energy(), eta(), PFAlgo::factors45_, first, PFElectronAlgo::getAllElectronCandidates(), PFElectronAlgo::getElectronCandidates(), PFElectronAlgo::getElectronExtra(), reco::PFBlockElement::GSF, HCAL, reco::PFBlockElement::HCAL, PFLayer::HF_EM, PFLayer::HF_HAD, reco::TrackBase::highPurity, reco::PFBlockElement::HO, i, cuy::ii, getHLTprescales::index, PFElectronAlgo::isElectronValidCandidate(), PFAlgo::isFromSecInt(), PFMuonAlgo::isIsolatedMuon(), muon::isLooseMuon(), reco::isMuon(), edm::Ref< C, T, F >::isNull(), PFPhotonAlgo::isPhotonValidCandidate(), j, reco::PFBlock::LINKTEST_ALL, max(), min, RPCpg::mu, PFAlgo::muonECAL_, PFAlgo::muonHCAL_, PFAlgo::muonHO_, reco::btau::neutralEnergy, PFAlgo::neutralHadronEnergyResolution(), PFAlgo::nSigmaECAL_, PFAlgo::nSigmaHCAL(), PFAlgo::nSigmaTRACK_, convertSQLiteXML::ok, AlCaHLTBitMon_ParallelJobs::p, PFAlgo::pfCandidates_, PFAlgo::pfele_, PFAlgo::pfElectronCandidates_, PFAlgo::pfElectronExtra_, PFAlgo::pfpho_, PFAlgo::pfPhotonCandidates_, PFAlgo::pfPhotonExtra_, PFAlgo::primaryVertex_, reco::PFBlockElement::PS1, reco::PFBlockElement::PS2, PFAlgo::ptError_, PFAlgo::reconstructCluster(), PFAlgo::reconstructTrack(), PFAlgo::rejectTracks_Bad_, PFAlgo::rejectTracks_Step45_, edm::second(), reco::PFCandidate::setEcalEnergy(), reco::PFCandidate::setHcalEnergy(), reco::PFCandidate::setHoEnergy(), reco::PFBlockElementTrack::setPositionAtECALEntrance(), edm::OwnVector< T, P >::size(), createPayload::skip, mathSSE::sqrt(), reco::PFBlockElement::T_FROM_GAMMACONV, PFAlgo::thepfEnergyCalibrationHF_, reco::PFBlockElement::TRACK, reco::btau::trackMomentum, reco::PFBlockElementTrack::trackType(), funct::true, PFAlgo::useHO_, PFAlgo::usePFConversions_, PFAlgo::usePFElectrons_, PFAlgo::usePFPhotons_, X, x, and Gflash::Z.
{ // debug_ = false; assert(!blockref.isNull() ); const reco::PFBlock& block = *blockref; typedef std::multimap<double, unsigned>::iterator IE; typedef std::multimap<double, std::pair<unsigned,math::XYZVector> >::iterator IS; typedef std::multimap<double, std::pair<unsigned,bool> >::iterator IT; typedef std::multimap< unsigned, std::pair<double, unsigned> >::iterator II; if(debug_) { cout<<"#########################################################"<<endl; cout<<"##### Process Block: #####"<<endl; cout<<"#########################################################"<<endl; cout<<block<<endl; } const edm::OwnVector< reco::PFBlockElement >& elements = block.elements(); // make a copy of the link data, which will be edited. PFBlock::LinkData linkData = block.linkData(); // keep track of the elements which are still active. vector<bool> active( elements.size(), true ); // //PFElectrons: // usePFElectrons_ external configurable parameter to set the usage of pf electron std::vector<reco::PFCandidate> tempElectronCandidates; tempElectronCandidates.clear(); if (usePFElectrons_) { if (pfele_->isElectronValidCandidate(blockref,active, primaryVertex_ )){ // if there is at least a valid candidate is get the vector of pfcandidates const std::vector<reco::PFCandidate> PFElectCandidates_(pfele_->getElectronCandidates()); for ( std::vector<reco::PFCandidate>::const_iterator ec=PFElectCandidates_.begin(); ec != PFElectCandidates_.end(); ++ec )tempElectronCandidates.push_back(*ec); // (***) We're filling the ElectronCandidates into the PFCandiate collection // ..... Once we let PFPhotonAlgo over-write electron-decision, we need to move this to // ..... after the PhotonAlgo has run (Fabian) } // The vector active is automatically changed (it is passed by ref) in PFElectronAlgo // for all the electron candidate pfElectronCandidates_->insert(pfElectronCandidates_->end(), pfele_->getAllElectronCandidates().begin(), pfele_->getAllElectronCandidates().end()); pfElectronExtra_.insert(pfElectronExtra_.end(), pfele_->getElectronExtra().begin(), pfele_->getElectronExtra().end()); } if( /* --- */ usePFPhotons_ /* --- */ ) { if(debug_) cout<<endl<<"--------------- entering PFPhotonAlgo ----------------"<<endl; vector<PFCandidatePhotonExtra> pfPhotonExtraCand; if ( pfpho_->isPhotonValidCandidate(blockref, // passing the reference to the PFBlock active, // std::vector<bool> containing information about acitivity pfPhotonCandidates_, // pointer to candidate vector, to be filled by the routine pfPhotonExtraCand, // candidate extra vector, to be filled by the routine tempElectronCandidates //pfElectronCandidates_ // pointer to some auziliary UNTOUCHED FOR NOW ) ) { if(debug_) std::cout<< " In this PFBlock we found "<<pfPhotonCandidates_->size()<<" Photon Candidates."<<std::endl; // CAUTION: In case we want to allow the PhotonAlgo to 'over-write' what the ElectronAlgo did above // ........ we should NOT fill the PFCandidate-vector with the electrons above (***) // Here we need to add all the photon cands to the pfCandidate list unsigned int extracand =0; PFCandidateCollection::const_iterator cand = pfPhotonCandidates_->begin(); for( ; cand != pfPhotonCandidates_->end(); ++cand, ++extracand) { pfCandidates_->push_back(*cand); pfPhotonExtra_.push_back(pfPhotonExtraCand[extracand]); } } // end of 'if' in case photons are found pfPhotonExtraCand.clear(); pfPhotonCandidates_->clear(); } // end of Photon algo //Lock extra conversion tracks not used by Photon Algo if (usePFConversions_ ) { for(unsigned iEle=0; iEle<elements.size(); iEle++) { PFBlockElement::Type type = elements[iEle].type(); if(type==PFBlockElement::TRACK) { if(elements[iEle].trackRef()->algo() == 12) active[iEle]=false; if(elements[iEle].trackRef()->quality(reco::TrackBase::highPurity))continue; const reco::PFBlockElementTrack * trackRef = dynamic_cast<const reco::PFBlockElementTrack*>((&elements[iEle])); if(!(trackRef->trackType(reco::PFBlockElement::T_FROM_GAMMACONV)))continue; if(elements[iEle].convRef().isNonnull())active[iEle]=false; } } } for ( std::vector<reco::PFCandidate>::const_iterator ec=tempElectronCandidates.begin(); ec != tempElectronCandidates.end(); ++ec ){ pfCandidates_->push_back(*ec); } tempElectronCandidates.clear(); if(debug_) cout<<endl<<"--------------- loop 1 ------------------"<<endl; //COLINFEB16 // In loop 1, we loop on all elements. // The primary goal is to deal with tracks that are: // - not associated to an HCAL cluster // - not identified as an electron. // Those tracks should be predominantly relatively low energy charged // hadrons which are not detected in the ECAL. // The secondary goal is to prepare for the next loops // - The ecal and hcal elements are sorted in separate vectors // which will be used as a base for the corresponding loops. // - For tracks which are connected to more than one HCAL cluster, // the links between the track and the cluster are cut for all clusters // but the closest one. // - HF only blocks ( HFEM, HFHAD, HFEM+HFAD) are identified // obsolete comments? // loop1: // - sort ecal and hcal elements in separate vectors // - for tracks: // - lock closest ecal cluster // - cut link to farthest hcal cluster, if more than 1. // vectors to store indices to ho, hcal and ecal elements vector<unsigned> hcalIs; vector<unsigned> hoIs; vector<unsigned> ecalIs; vector<unsigned> trackIs; vector<unsigned> ps1Is; vector<unsigned> ps2Is; vector<unsigned> hfEmIs; vector<unsigned> hfHadIs; for(unsigned iEle=0; iEle<elements.size(); iEle++) { PFBlockElement::Type type = elements[iEle].type(); if(debug_ && type != PFBlockElement::BREM ) cout<<endl<<elements[iEle]; switch( type ) { case PFBlockElement::TRACK: if ( active[iEle] ) { trackIs.push_back( iEle ); if(debug_) cout<<"TRACK, stored index, continue"<<endl; } break; case PFBlockElement::ECAL: if ( active[iEle] ) { ecalIs.push_back( iEle ); if(debug_) cout<<"ECAL, stored index, continue"<<endl; } continue; case PFBlockElement::HCAL: if ( active[iEle] ) { hcalIs.push_back( iEle ); if(debug_) cout<<"HCAL, stored index, continue"<<endl; } continue; case PFBlockElement::HO: if (useHO_) { if ( active[iEle] ) { hoIs.push_back( iEle ); if(debug_) cout<<"HO, stored index, continue"<<endl; } } continue; case PFBlockElement::HFEM: if ( active[iEle] ) { hfEmIs.push_back( iEle ); if(debug_) cout<<"HFEM, stored index, continue"<<endl; } continue; case PFBlockElement::HFHAD: if ( active[iEle] ) { hfHadIs.push_back( iEle ); if(debug_) cout<<"HFHAD, stored index, continue"<<endl; } continue; default: continue; } // we're now dealing with a track unsigned iTrack = iEle; reco::MuonRef muonRef = elements[iTrack].muonRef(); //Check if the track is a primary track of a secondary interaction //If that is the case reconstruct a charged hadron noly using that //track if (active[iTrack] && isFromSecInt(elements[iEle], "primary")){ bool isPrimaryTrack = elements[iEle].displacedVertexRef(PFBlockElement::T_TO_DISP)->displacedVertexRef()->isTherePrimaryTracks(); if (isPrimaryTrack) { if (debug_) cout << "Primary Track reconstructed alone" << endl; unsigned tmpi = reconstructTrack(elements[iEle]); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iEle ); active[iTrack] = false; } } if(debug_) { if ( !active[iTrack] ) cout << "Already used by electrons, muons, conversions" << endl; } // Track already used as electron, muon, conversion? // Added a check on the activated element if ( ! active[iTrack] ) continue; reco::TrackRef trackRef = elements[iTrack].trackRef(); assert( !trackRef.isNull() ); if (debug_ ) { cout <<"PFAlgo:processBlock "<<" "<<trackIs.size()<<" "<<ecalIs.size()<<" "<<hcalIs.size()<<" "<<hoIs.size()<<endl; } // look for associated elements of all types //COLINFEB16 // all types of links are considered. // the elements are sorted by increasing distance std::multimap<double, unsigned> ecalElems; block.associatedElements( iTrack, linkData, ecalElems , reco::PFBlockElement::ECAL, reco::PFBlock::LINKTEST_ALL ); std::multimap<double, unsigned> hcalElems; block.associatedElements( iTrack, linkData, hcalElems, reco::PFBlockElement::HCAL, reco::PFBlock::LINKTEST_ALL ); // When a track has no HCAL cluster linked, but another track is linked to the same // ECAL cluster and an HCAL cluster, link the track to the HCAL cluster for // later analysis if ( hcalElems.empty() && !ecalElems.empty() ) { // debug_ = true; unsigned ntt = 1; unsigned index = ecalElems.begin()->second; std::multimap<double, unsigned> sortedTracks; block.associatedElements( index, linkData, sortedTracks, reco::PFBlockElement::TRACK, reco::PFBlock::LINKTEST_ALL ); // std::cout << "The ECAL is linked to " << sortedTracks.size() << std::endl; // Loop over all tracks for(IE ie = sortedTracks.begin(); ie != sortedTracks.end(); ++ie ) { unsigned jTrack = ie->second; // std::cout << "Track " << jTrack << std::endl; // Track must be active if ( !active[jTrack] ) continue; //std::cout << "Active " << std::endl; // The loop is on the other tracks ! if ( jTrack == iTrack ) continue; //std::cout << "A different track ! " << std::endl; // Check if the ECAL closest to this track is the current ECAL // Otherwise ignore this track in the neutral energy determination std::multimap<double, unsigned> sortedECAL; block.associatedElements( jTrack, linkData, sortedECAL, reco::PFBlockElement::ECAL, reco::PFBlock::LINKTEST_ALL ); if ( sortedECAL.begin()->second != index ) continue; //std::cout << "With closest ECAL identical " << std::endl; // Check if this track is also linked to an HCAL std::multimap<double, unsigned> sortedHCAL; block.associatedElements( jTrack, linkData, sortedHCAL, reco::PFBlockElement::HCAL, reco::PFBlock::LINKTEST_ALL ); if ( !sortedHCAL.size() ) continue; //std::cout << "With an HCAL cluster " << sortedHCAL.begin()->first << std::endl; ntt++; // In that case establish a link with the first track block.setLink( iTrack, sortedHCAL.begin()->second, sortedECAL.begin()->first, linkData, PFBlock::LINKTEST_RECHIT ); } // End other tracks // Redefine HCAL elements block.associatedElements( iTrack, linkData, hcalElems, reco::PFBlockElement::HCAL, reco::PFBlock::LINKTEST_ALL ); if ( debug_ && hcalElems.size() ) std::cout << "Track linked back to HCAL due to ECAL sharing with other tracks" << std::endl; } //MICHELE //TEMPORARY SOLUTION FOR ELECTRON REJECTION IN PFTAU //COLINFEB16 // in case particle flow electrons are not reconstructed, // the mva_e_pi of the charged hadron will be set to 1 // if a GSF element is associated to the current TRACK element // This information will be used in the electron rejection for tau ID. std::multimap<double,unsigned> gsfElems; if (usePFElectrons_ == false) { block.associatedElements( iTrack, linkData, gsfElems , reco::PFBlockElement::GSF ); } // if(hcalElems.empty() && debug_) { cout<<"no hcal element connected to track "<<iTrack<<endl; } // will now loop on associated elements ... // typedef std::multimap<double, unsigned>::iterator IE; bool hcalFound = false; if(debug_) cout<<"now looping on elements associated to the track"<<endl; // ... first on associated ECAL elements // Check if there is still a free ECAL for this track for(IE ie = ecalElems.begin(); ie != ecalElems.end(); ++ie ) { unsigned index = ie->second; // Sanity checks and optional printout PFBlockElement::Type type = elements[index].type(); if(debug_) { double dist = ie->first; cout<<"\telement "<<elements[index]<<" linked with distance = "<< dist <<endl; if ( ! active[index] ) cout << "This ECAL is already used - skip it" << endl; } assert( type == PFBlockElement::ECAL ); // This ECAL is not free (taken by an electron?) - just skip it if ( ! active[index] ) continue; // Flag ECAL clusters for which the corresponding track is not linked to an HCAL cluster //reco::PFClusterRef clusterRef = elements[index].clusterRef(); //assert( !clusterRef.isNull() ); if( !hcalElems.empty() && debug_) cout<<"\t\tat least one hcal element connected to the track." <<" Sparing Ecal cluster for the hcal loop"<<endl; } //loop print ecal elements // tracks which are not linked to an HCAL // are reconstructed now. if( hcalElems.empty() ) { if ( debug_ ) std::cout << "Now deals with tracks linked to no HCAL clusters" << std::endl; // vector<unsigned> elementIndices; // elementIndices.push_back(iTrack); // The track momentum double trackMomentum = elements[iTrack].trackRef()->p(); if ( debug_ ) std::cout << elements[iTrack] << std::endl; // Is it a "tight" muon ? In that case assume no //Track momentum corresponds to the calorimeter //energy for now bool thisIsAMuon = PFMuonAlgo::isMuon(elements[iTrack]); if ( thisIsAMuon ) trackMomentum = 0.; // If it is not a muon check if Is it a fake track ? //Michalis: I wonder if we should convert this to dpt/pt? bool rejectFake = false; if ( !thisIsAMuon && elements[iTrack].trackRef()->ptError() > ptError_ ) { double deficit = trackMomentum; double resol = neutralHadronEnergyResolution(trackMomentum, elements[iTrack].trackRef()->eta()); resol *= trackMomentum; if ( !ecalElems.empty() ) { unsigned thisEcal = ecalElems.begin()->second; reco::PFClusterRef clusterRef = elements[thisEcal].clusterRef(); deficit -= clusterRef->energy(); resol = neutralHadronEnergyResolution(trackMomentum, clusterRef->positionREP().Eta()); resol *= trackMomentum; } bool isPrimary = isFromSecInt(elements[iTrack], "primary"); if ( deficit > nSigmaTRACK_*resol && !isPrimary) { rejectFake = true; active[iTrack] = false; if ( debug_ ) std::cout << elements[iTrack] << std::endl << "is probably a fake (1) --> lock the track" << std::endl; } } if ( rejectFake ) continue; // Create a track candidate // unsigned tmpi = reconstructTrack( elements[iTrack] ); //active[iTrack] = false; std::vector<unsigned> tmpi; std::vector<unsigned> kTrack; // Some cleaning : secondary tracks without calo's and large momentum must be fake double Dpt = trackRef->ptError(); if ( rejectTracks_Step45_ && ecalElems.empty() && trackMomentum > 30. && Dpt > 0.5 && ( trackRef->algo() == TrackBase::iter4 || trackRef->algo() == TrackBase::iter5 || trackRef->algo() == TrackBase::iter6 ) ) { // double dptRel = Dpt/trackRef->pt()*100; bool isPrimaryOrSecondary = isFromSecInt(elements[iTrack], "all"); if ( isPrimaryOrSecondary && dptRel < dptRel_DispVtx_) continue; unsigned nHits = elements[iTrack].trackRef()->hitPattern().trackerLayersWithMeasurement(); unsigned int NLostHit = trackRef->hitPattern().trackerLayersWithoutMeasurement(); if ( debug_ ) std::cout << "A track (algo = " << trackRef->algo() << ") with momentum " << trackMomentum << " / " << elements[iTrack].trackRef()->pt() << " +/- " << Dpt << " / " << elements[iTrack].trackRef()->eta() << " without any link to ECAL/HCAL and with " << nHits << " (" << NLostHit << ") hits (lost hits) has been cleaned" << std::endl; active[iTrack] = false; continue; } tmpi.push_back(reconstructTrack( elements[iTrack])); kTrack.push_back(iTrack); active[iTrack] = false; // No ECAL cluster either ... continue... if ( ecalElems.empty() ) { (*pfCandidates_)[tmpi[0]].setEcalEnergy( 0., 0. ); (*pfCandidates_)[tmpi[0]].setHcalEnergy( 0., 0. ); (*pfCandidates_)[tmpi[0]].setHoEnergy( 0., 0. ); (*pfCandidates_)[tmpi[0]].setPs1Energy( 0 ); (*pfCandidates_)[tmpi[0]].setPs2Energy( 0 ); (*pfCandidates_)[tmpi[0]].addElementInBlock( blockref, kTrack[0] ); continue; } // Look for closest ECAL cluster unsigned thisEcal = ecalElems.begin()->second; reco::PFClusterRef clusterRef = elements[thisEcal].clusterRef(); if ( debug_ ) std::cout << " is associated to " << elements[thisEcal] << std::endl; // Set ECAL energy for muons if ( thisIsAMuon ) { (*pfCandidates_)[tmpi[0]].setEcalEnergy( clusterRef->energy(), std::min(clusterRef->energy(), muonECAL_[0]) ); (*pfCandidates_)[tmpi[0]].setHcalEnergy( 0., 0. ); (*pfCandidates_)[tmpi[0]].setHoEnergy( 0., 0. ); (*pfCandidates_)[tmpi[0]].setPs1Energy( 0 ); (*pfCandidates_)[tmpi[0]].setPs2Energy( 0 ); (*pfCandidates_)[tmpi[0]].addElementInBlock( blockref, kTrack[0] ); } double slopeEcal = 1.; bool connectedToEcal = false; unsigned iEcal = 99999; double calibEcal = 0.; double calibHcal = 0.; double totalEcal = thisIsAMuon ? -muonECAL_[0] : 0.; // Consider charged particles closest to the same ECAL cluster std::multimap<double, unsigned> sortedTracks; block.associatedElements( thisEcal, linkData, sortedTracks, reco::PFBlockElement::TRACK, reco::PFBlock::LINKTEST_ALL ); for(IE ie = sortedTracks.begin(); ie != sortedTracks.end(); ++ie ) { unsigned jTrack = ie->second; // Don't consider already used tracks if ( !active[jTrack] ) continue; // The loop is on the other tracks ! if ( jTrack == iTrack ) continue; // Check if the ECAL cluster closest to this track is // indeed the current ECAL cluster. Only tracks not // linked to an HCAL cluster are considered here std::multimap<double, unsigned> sortedECAL; block.associatedElements( jTrack, linkData, sortedECAL, reco::PFBlockElement::ECAL, reco::PFBlock::LINKTEST_ALL ); if ( sortedECAL.begin()->second != thisEcal ) continue; // Check if this track is a muon bool thatIsAMuon = PFMuonAlgo::isMuon(elements[jTrack]); // Check if this track is not a fake bool rejectFake = false; reco::TrackRef trackRef = elements[jTrack].trackRef(); if ( !thatIsAMuon && trackRef->ptError() > ptError_) { double deficit = trackMomentum + trackRef->p() - clusterRef->energy(); double resol = nSigmaTRACK_*neutralHadronEnergyResolution(trackMomentum+trackRef->p(), clusterRef->positionREP().Eta()); resol *= (trackMomentum+trackRef->p()); if ( deficit > nSigmaTRACK_*resol ) { rejectFake = true; kTrack.push_back(jTrack); active[jTrack] = false; if ( debug_ ) std::cout << elements[jTrack] << std::endl << "is probably a fake (2) --> lock the track" << std::endl; } } if ( rejectFake ) continue; // Otherwise, add this track momentum to the total track momentum /* */ // reco::TrackRef trackRef = elements[jTrack].trackRef(); if ( !thatIsAMuon ) { if ( debug_ ) std::cout << "Track momentum increased from " << trackMomentum << " GeV "; trackMomentum += trackRef->p(); if ( debug_ ) { std::cout << "to " << trackMomentum << " GeV." << std::endl; std::cout << "with " << elements[jTrack] << std::endl; } } else { totalEcal -= muonECAL_[0]; totalEcal = std::max(totalEcal, 0.); } // And create a charged particle candidate ! tmpi.push_back(reconstructTrack( elements[jTrack] )); kTrack.push_back(jTrack); active[jTrack] = false; if ( thatIsAMuon ) { (*pfCandidates_)[tmpi.back()].setEcalEnergy(clusterRef->energy(), std::min(clusterRef->energy(),muonECAL_[0])); (*pfCandidates_)[tmpi.back()].setHcalEnergy( 0., 0. ); (*pfCandidates_)[tmpi.back()].setHoEnergy( 0., 0. ); (*pfCandidates_)[tmpi.back()].setPs1Energy( 0 ); (*pfCandidates_)[tmpi.back()].setPs2Energy( 0 ); (*pfCandidates_)[tmpi.back()].addElementInBlock( blockref, kTrack.back() ); } } if ( debug_ ) std::cout << "Loop over all associated ECAL clusters" << std::endl; // Loop over all ECAL linked clusters ordered by increasing distance. for(IE ie = ecalElems.begin(); ie != ecalElems.end(); ++ie ) { unsigned index = ie->second; PFBlockElement::Type type = elements[index].type(); assert( type == PFBlockElement::ECAL ); if ( debug_ ) std::cout << elements[index] << std::endl; // Just skip clusters already taken if ( debug_ && ! active[index] ) std::cout << "is not active - ignore " << std::endl; if ( ! active[index] ) continue; // Just skip this cluster if it's closer to another track /* */ block.associatedElements( index, linkData, sortedTracks, reco::PFBlockElement::TRACK, reco::PFBlock::LINKTEST_ALL ); bool skip = true; for (unsigned ic=0; ic<kTrack.size();++ic) { if ( sortedTracks.begin()->second == kTrack[ic] ) { skip = false; break; } } if ( debug_ && skip ) std::cout << "is closer to another track - ignore " << std::endl; if ( skip ) continue; /* */ // The corresponding PFCluster and energy reco::PFClusterRef clusterRef = elements[index].clusterRef(); assert( !clusterRef.isNull() ); if ( debug_ ) { double dist = ie->first; std::cout <<"Ecal cluster with raw energy = " << clusterRef->energy() <<" linked with distance = " << dist << std::endl; } /* double dist = ie->first; if ( !connectedToEcal && dist > 0.1 ) { std::cout << "Warning - first ECAL cluster at a distance of " << dist << "from the closest track!" << std::endl; cout<<"\telement "<<elements[index]<<" linked with distance = "<< dist <<endl; cout<<"\telement "<<elements[iTrack]<<" linked with distance = "<< dist <<endl; } */ // Check the presence of preshower clusters in the vicinity // Preshower cluster closer to another ECAL cluster are ignored. vector<double> ps1Ene(1,static_cast<double>(0.)); associatePSClusters(index, reco::PFBlockElement::PS1, block, elements, linkData, active, ps1Ene); vector<double> ps2Ene(1,static_cast<double>(0.)); associatePSClusters(index, reco::PFBlockElement::PS2, block, elements, linkData, active, ps2Ene); // Get the energy calibrated (for photons) bool crackCorrection = false; double ecalEnergy = calibration_->energyEm(*clusterRef,ps1Ene,ps2Ene,crackCorrection); if ( debug_ ) std::cout << "Corrected ECAL(+PS) energy = " << ecalEnergy << std::endl; // Since the electrons were found beforehand, this track must be a hadron. Calibrate // the energy under the hadron hypothesis. totalEcal += ecalEnergy; double previousCalibEcal = calibEcal; double previousSlopeEcal = slopeEcal; calibEcal = std::max(totalEcal,0.); calibHcal = 0.; calibration_->energyEmHad(trackMomentum,calibEcal,calibHcal, clusterRef->positionREP().Eta(), clusterRef->positionREP().Phi()); if ( totalEcal > 0.) slopeEcal = calibEcal/totalEcal; if ( debug_ ) std::cout << "The total calibrated energy so far amounts to = " << calibEcal << std::endl; // Stop the loop when adding more ECAL clusters ruins the compatibility if ( connectedToEcal && calibEcal - trackMomentum >= 0. ) { // if ( connectedToEcal && calibEcal - trackMomentum >= // nSigmaECAL_*neutralHadronEnergyResolution(trackMomentum,clusterRef->positionREP().Eta()) ) { calibEcal = previousCalibEcal; slopeEcal = previousSlopeEcal; totalEcal = calibEcal/slopeEcal; // Turn this last cluster in a photon // (The PS clusters are already locked in "associatePSClusters") active[index] = false; // Find the associated tracks std::multimap<double, unsigned> assTracks; block.associatedElements( index, linkData, assTracks, reco::PFBlockElement::TRACK, reco::PFBlock::LINKTEST_ALL ); unsigned tmpe = reconstructCluster( *clusterRef, ecalEnergy ); (*pfCandidates_)[tmpe].setEcalEnergy( clusterRef->energy(), ecalEnergy ); (*pfCandidates_)[tmpe].setHcalEnergy( 0., 0. ); (*pfCandidates_)[tmpe].setHoEnergy( 0., 0. ); (*pfCandidates_)[tmpe].setPs1Energy( ps1Ene[0] ); (*pfCandidates_)[tmpe].setPs2Energy( ps2Ene[0] ); (*pfCandidates_)[tmpe].addElementInBlock( blockref, index ); // Check that there is at least one track if(assTracks.size()) { (*pfCandidates_)[tmpe].addElementInBlock( blockref, assTracks.begin()->second ); // Assign the position of the track at the ECAL entrance const math::XYZPointF& chargedPosition = dynamic_cast<const reco::PFBlockElementTrack*>(&elements[assTracks.begin()->second])->positionAtECALEntrance(); (*pfCandidates_)[tmpe].setPositionAtECALEntrance(chargedPosition); } break; } // Lock used clusters. connectedToEcal = true; iEcal = index; active[index] = false; for (unsigned ic=0; ic<tmpi.size();++ic) (*pfCandidates_)[tmpi[ic]].addElementInBlock( blockref, iEcal ); } // Loop ecal elements bool bNeutralProduced = false; // Create a photon if the ecal energy is too large if( connectedToEcal ) { reco::PFClusterRef pivotalRef = elements[iEcal].clusterRef(); double neutralEnergy = calibEcal - trackMomentum; /* // Check if there are other tracks linked to that ECAL for(IE ie = sortedTracks.begin(); ie != sortedTracks.end() && neutralEnergy > 0; ++ie ) { unsigned jTrack = ie->second; // The loop is on the other tracks ! if ( jTrack == iTrack ) continue; // Check if the ECAL closest to this track is the current ECAL // Otherwise ignore this track in the neutral energy determination std::multimap<double, unsigned> sortedECAL; block.associatedElements( jTrack, linkData, sortedECAL, reco::PFBlockElement::ECAL, reco::PFBlock::LINKTEST_ALL ); if ( sortedECAL.begin()->second != iEcal ) continue; // Check if this track is also linked to an HCAL // (in which case it goes to the next loop and is ignored here) std::multimap<double, unsigned> sortedHCAL; block.associatedElements( jTrack, linkData, sortedHCAL, reco::PFBlockElement::HCAL, reco::PFBlock::LINKTEST_ALL ); if ( sortedHCAL.size() ) continue; // Otherwise, subtract this track momentum from the ECAL energy reco::TrackRef trackRef = elements[jTrack].trackRef(); neutralEnergy -= trackRef->p(); } // End other tracks */ // Add a photon is the energy excess is large enough double resol = neutralHadronEnergyResolution(trackMomentum,pivotalRef->positionREP().Eta()); resol *= trackMomentum; if ( neutralEnergy > std::max(0.5,nSigmaECAL_*resol) ) { neutralEnergy /= slopeEcal; unsigned tmpj = reconstructCluster( *pivotalRef, neutralEnergy ); (*pfCandidates_)[tmpj].setEcalEnergy( pivotalRef->energy(), neutralEnergy ); (*pfCandidates_)[tmpj].setHcalEnergy( 0., 0. ); (*pfCandidates_)[tmpj].setHoEnergy( 0., 0. ); (*pfCandidates_)[tmpj].setPs1Energy( 0. ); (*pfCandidates_)[tmpj].setPs2Energy( 0. ); (*pfCandidates_)[tmpj].addElementInBlock(blockref, iEcal); bNeutralProduced = true; for (unsigned ic=0; ic<kTrack.size();++ic) (*pfCandidates_)[tmpj].addElementInBlock( blockref, kTrack[ic] ); } // End neutral energy // Set elements in blocks and ECAL energies to all tracks for (unsigned ic=0; ic<tmpi.size();++ic) { // Skip muons if ( (*pfCandidates_)[tmpi[ic]].particleId() == reco::PFCandidate::mu ) continue; double fraction = (*pfCandidates_)[tmpi[ic]].trackRef()->p()/trackMomentum; double ecalCal = bNeutralProduced ? (calibEcal-neutralEnergy*slopeEcal)*fraction : calibEcal*fraction; double ecalRaw = totalEcal*fraction; if (debug_) cout << "The fraction after photon supression is " << fraction << " calibrated ecal = " << ecalCal << endl; (*pfCandidates_)[tmpi[ic]].setEcalEnergy( ecalRaw, ecalCal ); (*pfCandidates_)[tmpi[ic]].setHcalEnergy( 0., 0. ); (*pfCandidates_)[tmpi[ic]].setHoEnergy( 0., 0. ); (*pfCandidates_)[tmpi[ic]].setPs1Energy( 0 ); (*pfCandidates_)[tmpi[ic]].setPs2Energy( 0 ); (*pfCandidates_)[tmpi[ic]].addElementInBlock( blockref, kTrack[ic] ); } } // End connected ECAL // Fill the element_in_block for tracks that are eventually linked to no ECAL clusters at all. for (unsigned ic=0; ic<tmpi.size();++ic) { const PFCandidate& pfc = (*pfCandidates_)[tmpi[ic]]; const PFCandidate::ElementsInBlocks& eleInBlocks = pfc.elementsInBlocks(); if ( eleInBlocks.size() == 0 ) { if ( debug_ )std::cout << "Single track / Fill element in block! " << std::endl; (*pfCandidates_)[tmpi[ic]].addElementInBlock( blockref, kTrack[ic] ); } } } // In case several HCAL elements are linked to this track, // unlinking all of them except the closest. for(IE ie = hcalElems.begin(); ie != hcalElems.end(); ++ie ) { unsigned index = ie->second; PFBlockElement::Type type = elements[index].type(); if(debug_) { double dist = block.dist(iTrack,index,linkData,reco::PFBlock::LINKTEST_ALL); cout<<"\telement "<<elements[index]<<" linked with distance "<< dist <<endl; } assert( type == PFBlockElement::HCAL ); // all hcal clusters except the closest // will be unlinked from the track if( !hcalFound ) { // closest hcal if(debug_) cout<<"\t\tclosest hcal cluster, doing nothing"<<endl; hcalFound = true; // active[index] = false; // hcalUsed.push_back( index ); } else { // other associated hcal // unlink from the track if(debug_) cout<<"\t\tsecondary hcal cluster. unlinking"<<endl; block.setLink( iTrack, index, -1., linkData, PFBlock::LINKTEST_RECHIT ); } } //loop hcal elements } // end of loop 1 on elements iEle of any type // deal with HF. if( !(hfEmIs.empty() && hfHadIs.empty() ) ) { // there is at least one HF element in this block. // so all elements must be HF. assert( hfEmIs.size() + hfHadIs.size() == elements.size() ); if( elements.size() == 1 ) { //Auguste: HAD-only calibration here reco::PFClusterRef clusterRef = elements[0].clusterRef(); double energyHF = 0.; double uncalibratedenergyHF = 0.; unsigned tmpi = 0; switch( clusterRef->layer() ) { case PFLayer::HF_EM: // do EM-only calibration here energyHF = clusterRef->energy(); uncalibratedenergyHF = energyHF; if(thepfEnergyCalibrationHF_->getcalibHF_use()==true){ energyHF = thepfEnergyCalibrationHF_->energyEm(uncalibratedenergyHF, clusterRef->positionREP().Eta(), clusterRef->positionREP().Phi()); } tmpi = reconstructCluster( *clusterRef, energyHF ); (*pfCandidates_)[tmpi].setEcalEnergy( uncalibratedenergyHF, energyHF ); (*pfCandidates_)[tmpi].setHcalEnergy( 0., 0.); (*pfCandidates_)[tmpi].setHoEnergy( 0., 0.); (*pfCandidates_)[tmpi].setPs1Energy( 0. ); (*pfCandidates_)[tmpi].setPs2Energy( 0. ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, hfEmIs[0] ); //std::cout << "HF EM alone ! " << energyHF << std::endl; break; case PFLayer::HF_HAD: // do HAD-only calibration here energyHF = clusterRef->energy(); uncalibratedenergyHF = energyHF; if(thepfEnergyCalibrationHF_->getcalibHF_use()==true){ energyHF = thepfEnergyCalibrationHF_->energyHad(uncalibratedenergyHF, clusterRef->positionREP().Eta(), clusterRef->positionREP().Phi()); } tmpi = reconstructCluster( *clusterRef, energyHF ); (*pfCandidates_)[tmpi].setHcalEnergy( uncalibratedenergyHF, energyHF ); (*pfCandidates_)[tmpi].setEcalEnergy( 0., 0.); (*pfCandidates_)[tmpi].setHoEnergy( 0., 0.); (*pfCandidates_)[tmpi].setPs1Energy( 0. ); (*pfCandidates_)[tmpi].setPs2Energy( 0. ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, hfHadIs[0] ); //std::cout << "HF Had alone ! " << energyHF << std::endl; break; default: assert(0); } } else if( elements.size() == 2 ) { //Auguste: EM + HAD calibration here reco::PFClusterRef c0 = elements[0].clusterRef(); reco::PFClusterRef c1 = elements[1].clusterRef(); // 2 HF elements. Must be in each layer. reco::PFClusterRef cem = c1; reco::PFClusterRef chad = c0; if( c0->layer()== PFLayer::HF_EM ) { if ( c1->layer()== PFLayer::HF_HAD ) { cem = c0; chad = c1; } else { assert(0); } // do EM+HAD calibration here double energyHfEm = cem->energy(); double energyHfHad = chad->energy(); double uncalibratedenergyHFEm = energyHfEm; double uncalibratedenergyHFHad = energyHfHad; if(thepfEnergyCalibrationHF_->getcalibHF_use()==true){ energyHfEm = thepfEnergyCalibrationHF_->energyEmHad(uncalibratedenergyHFEm, 0.0, c0->positionREP().Eta(), c0->positionREP().Phi()); energyHfHad = thepfEnergyCalibrationHF_->energyEmHad(0.0, uncalibratedenergyHFHad, c1->positionREP().Eta(), c1->positionREP().Phi()); } unsigned tmpi = reconstructCluster( *chad, energyHfEm+energyHfHad ); (*pfCandidates_)[tmpi].setEcalEnergy( uncalibratedenergyHFEm, energyHfEm ); (*pfCandidates_)[tmpi].setHcalEnergy( uncalibratedenergyHFHad, energyHfHad); (*pfCandidates_)[tmpi].setHoEnergy( 0., 0.); (*pfCandidates_)[tmpi].setPs1Energy( 0. ); (*pfCandidates_)[tmpi].setPs2Energy( 0. ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, hfEmIs[0] ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, hfHadIs[0] ); //std::cout << "HF EM+HAD found ! " << energyHfEm << " " << energyHfHad << std::endl; } else { cerr<<"Warning: 2 elements, but not 1 HFEM and 1 HFHAD"<<endl; cerr<<block<<endl; // assert( c1->layer()== PFLayer::HF_EM && // c0->layer()== PFLayer::HF_HAD ); } } else { // 1 HF element in the block, // but number of elements not equal to 1 or 2 cerr<<"Warning: HF, but n elem different from 1 or 2"<<endl; cerr<<block<<endl; // assert(0); // cerr<<"not ready for navigation in the HF!"<<endl; } } if(debug_) { cout<<endl; cout<<endl<<"--------------- loop hcal ---------------------"<<endl; } // track information: // trackRef // ecal energy // hcal energy // rescale for(unsigned i=0; i<hcalIs.size(); i++) { unsigned iHcal= hcalIs[i]; PFBlockElement::Type type = elements[iHcal].type(); assert( type == PFBlockElement::HCAL ); if(debug_) cout<<endl<<elements[iHcal]<<endl; // vector<unsigned> elementIndices; // elementIndices.push_back(iHcal); // associated tracks std::multimap<double, unsigned> sortedTracks; block.associatedElements( iHcal, linkData, sortedTracks, reco::PFBlockElement::TRACK, reco::PFBlock::LINKTEST_ALL ); std::multimap< unsigned, std::pair<double, unsigned> > associatedEcals; std::map< unsigned, std::pair<double, double> > associatedPSs; std::multimap<double, std::pair<unsigned,bool> > associatedTracks; // A temporary maps for ECAL satellite clusters std::multimap<double,std::pair<unsigned,math::XYZVector> > ecalSatellites; std::pair<unsigned,math::XYZVector> fakeSatellite = make_pair(iHcal,math::XYZVector(0.,0.,0.)); ecalSatellites.insert( make_pair(-1., fakeSatellite) ); std::multimap< unsigned, std::pair<double, unsigned> > associatedHOs; PFClusterRef hclusterref = elements[iHcal].clusterRef(); assert(!hclusterref.isNull() ); //if there is no track attached to that HCAL, then do not //reconstruct an HCAL alone, check if it can be recovered //first // if no associated tracks, create a neutral hadron //if(sortedTracks.empty() ) { if( sortedTracks.empty() ) { if(debug_) cout<<"\tno associated tracks, keep for later"<<endl; continue; } // Lock the HCAL cluster active[iHcal] = false; // in the following, tracks are associated to this hcal cluster. // will look for an excess of energy in the calorimeters w/r to // the charged energy, and turn this excess into a neutral hadron or // a photon. if(debug_) cout<<"\t"<<sortedTracks.size()<<" associated tracks:"<<endl; double totalChargedMomentum = 0; double sumpError2 = 0.; double totalHO = 0.; double totalEcal = 0.; double totalHcal = hclusterref->energy(); vector<double> hcalP; vector<double> hcalDP; vector<unsigned> tkIs; double maxDPovP = -9999.; //Keep track of how much energy is assigned to calorimeter-vs-track energy/momentum excess vector< unsigned > chargedHadronsIndices; vector< unsigned > chargedHadronsInBlock; double mergedNeutralHadronEnergy = 0; double mergedPhotonEnergy = 0; double muonHCALEnergy = 0.; double muonECALEnergy = 0.; double muonHCALError = 0.; double muonECALError = 0.; unsigned nMuons = 0; math::XYZVector photonAtECAL(0.,0.,0.); math::XYZVector hadronDirection(hclusterref->position().X(), hclusterref->position().Y(), hclusterref->position().Z()); hadronDirection = hadronDirection.Unit(); math::XYZVector hadronAtECAL = totalHcal * hadronDirection; // Loop over all tracks associated to this HCAL cluster for(IE ie = sortedTracks.begin(); ie != sortedTracks.end(); ++ie ) { unsigned iTrack = ie->second; // Check the track has not already been used (e.g., in electrons, conversions...) if ( !active[iTrack] ) continue; // Sanity check 1 PFBlockElement::Type type = elements[iTrack].type(); assert( type == reco::PFBlockElement::TRACK ); // Sanity check 2 reco::TrackRef trackRef = elements[iTrack].trackRef(); assert( !trackRef.isNull() ); // The direction at ECAL entrance const math::XYZPointF& chargedPosition = dynamic_cast<const reco::PFBlockElementTrack*>(&elements[iTrack])->positionAtECALEntrance(); math::XYZVector chargedDirection(chargedPosition.X(),chargedPosition.Y(),chargedPosition.Z()); chargedDirection = chargedDirection.Unit(); // look for ECAL elements associated to iTrack (associated to iHcal) std::multimap<double, unsigned> sortedEcals; block.associatedElements( iTrack, linkData, sortedEcals, reco::PFBlockElement::ECAL, reco::PFBlock::LINKTEST_ALL ); if(debug_) cout<<"\t\t\tnumber of Ecal elements linked to this track: " <<sortedEcals.size()<<endl; // look for HO elements associated to iTrack (associated to iHcal) std::multimap<double, unsigned> sortedHOs; if (useHO_) { block.associatedElements( iTrack, linkData, sortedHOs, reco::PFBlockElement::HO, reco::PFBlock::LINKTEST_ALL ); } if(debug_) cout<<"PFAlgo : number of HO elements linked to this track: " <<sortedHOs.size()<<endl; // Create a PF Candidate right away if the track is a tight muon reco::MuonRef muonRef = elements[iTrack].muonRef(); bool thisIsAMuon = PFMuonAlgo::isMuon(elements[iTrack]); bool thisIsAnIsolatedMuon = PFMuonAlgo::isIsolatedMuon(elements[iTrack]); bool thisIsALooseMuon = false; if(!thisIsAMuon ) { thisIsALooseMuon = PFMuonAlgo::isLooseMuon(elements[iTrack]); } if ( thisIsAMuon ) { if ( debug_ ) { std::cout << "\t\tThis track is identified as a muon - remove it from the stack" << std::endl; std::cout << "\t\t" << elements[iTrack] << std::endl; } // Create a muon. unsigned tmpi = reconstructTrack( elements[iTrack] ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iTrack ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iHcal ); double muonHcal = std::min(muonHCAL_[0]+muonHCAL_[1],totalHcal); // if muon is isolated and muon momentum exceeds the calo energy, absorb the calo energy // rationale : there has been a EM showering by the muon in the calorimeter - or the coil - // and we don't want to double count the energy bool letMuonEatCaloEnergy = false; if(thisIsAnIsolatedMuon){ // The factor 1.3 is the e/pi factor in HCAL... double totalCaloEnergy = totalHcal / 1.30; unsigned iEcal = 0; if( !sortedEcals.empty() ) { iEcal = sortedEcals.begin()->second; PFClusterRef eclusterref = elements[iEcal].clusterRef(); totalCaloEnergy += eclusterref->energy(); } if (useHO_) { // The factor 1.3 is assumed to be the e/pi factor in HO, too. unsigned iHO = 0; if( !sortedHOs.empty() ) { iHO = sortedHOs.begin()->second; PFClusterRef eclusterref = elements[iHO].clusterRef(); totalCaloEnergy += eclusterref->energy() / 1.30; } } // std::cout << "muon p / total calo = " << muonRef->p() << " " << (pfCandidates_->back()).p() << " " << totalCaloEnergy << std::endl; //if(muonRef->p() > totalCaloEnergy ) letMuonEatCaloEnergy = true; if( (pfCandidates_->back()).p() > totalCaloEnergy ) letMuonEatCaloEnergy = true; } if(letMuonEatCaloEnergy) muonHcal = totalHcal; double muonEcal =0.; unsigned iEcal = 0; if( !sortedEcals.empty() ) { iEcal = sortedEcals.begin()->second; PFClusterRef eclusterref = elements[iEcal].clusterRef(); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iEcal); muonEcal = std::min(muonECAL_[0]+muonECAL_[1],eclusterref->energy()); if(letMuonEatCaloEnergy) muonEcal = eclusterref->energy(); // If the muon expected energy accounts for the whole ecal cluster energy, lock the ecal cluster if ( eclusterref->energy() - muonEcal < 0.2 ) active[iEcal] = false; (*pfCandidates_)[tmpi].setEcalEnergy(eclusterref->energy(), muonEcal); } unsigned iHO = 0; double muonHO =0.; if (useHO_) { if( !sortedHOs.empty() ) { iHO = sortedHOs.begin()->second; PFClusterRef hoclusterref = elements[iHO].clusterRef(); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iHO); muonHO = std::min(muonHO_[0]+muonHO_[1],hoclusterref->energy()); if(letMuonEatCaloEnergy) muonHO = hoclusterref->energy(); // If the muon expected energy accounts for the whole HO cluster energy, lock the HO cluster if ( hoclusterref->energy() - muonHO < 0.2 ) active[iHO] = false; (*pfCandidates_)[tmpi].setHcalEnergy(totalHcal, muonHcal); (*pfCandidates_)[tmpi].setHoEnergy(hoclusterref->energy(), muonHO); } } else { (*pfCandidates_)[tmpi].setHcalEnergy(totalHcal, muonHcal); } if(letMuonEatCaloEnergy){ muonHCALEnergy += totalHcal; if (useHO_) muonHCALEnergy +=muonHO; muonHCALError += 0.; muonECALEnergy += muonEcal; muonECALError += 0.; photonAtECAL -= muonEcal*chargedDirection; hadronAtECAL -= totalHcal*chargedDirection; if ( !sortedEcals.empty() ) active[iEcal] = false; active[iHcal] = false; if (useHO_ && !sortedHOs.empty() ) active[iHO] = false; } else{ // Estimate of the energy deposit & resolution in the calorimeters muonHCALEnergy += muonHCAL_[0]; muonHCALError += muonHCAL_[1]*muonHCAL_[1]; if ( muonHO > 0. ) { muonHCALEnergy += muonHO_[0]; muonHCALError += muonHO_[1]*muonHO_[1]; } muonECALEnergy += muonECAL_[0]; muonECALError += muonECAL_[1]*muonECAL_[1]; // ... as well as the equivalent "momentum" at ECAL entrance photonAtECAL -= muonECAL_[0]*chargedDirection; hadronAtECAL -= muonHCAL_[0]*chargedDirection; } // Remove it from the stack active[iTrack] = false; // Go to next track continue; } // if(debug_) cout<<"\t\t"<<elements[iTrack]<<endl; // introduce tracking errors double trackMomentum = trackRef->p(); totalChargedMomentum += trackMomentum; // If the track is not a tight muon, but still resembles a muon // keep it for later for blocks with too large a charged energy if ( thisIsALooseMuon && !thisIsAMuon ) nMuons += 1; // ... and keep anyway the pt error for possible fake rejection // ... blow up errors of 5th anf 4th iteration, to reject those // ... tracks first (in case it's needed) double Dpt = trackRef->ptError(); double blowError = 1.; switch (trackRef->algo()) { case TrackBase::ctf: case TrackBase::iter0: case TrackBase::iter1: case TrackBase::iter2: case TrackBase::iter3: case TrackBase::iter4: blowError = 1.; break; case TrackBase::iter5: blowError = factors45_[0]; break; case TrackBase::iter6: blowError = factors45_[1]; break; default: blowError = 1E9; break; } // except if it is from an interaction bool isPrimaryOrSecondary = isFromSecInt(elements[iTrack], "all"); if ( isPrimaryOrSecondary ) blowError = 1.; std::pair<unsigned,bool> tkmuon = make_pair(iTrack,thisIsALooseMuon); associatedTracks.insert( make_pair(-Dpt*blowError, tkmuon) ); // Also keep the total track momentum error for comparison with the calo energy double Dp = trackRef->qoverpError()*trackMomentum*trackMomentum; sumpError2 += Dp*Dp; bool connectedToEcal = false; // Will become true if there is at least one ECAL cluster connected if( !sortedEcals.empty() ) { // start case: at least one ecal element associated to iTrack // Loop over all connected ECAL clusters for ( IE iec=sortedEcals.begin(); iec!=sortedEcals.end(); ++iec ) { unsigned iEcal = iec->second; double dist = iec->first; // Ignore ECAL cluters already used if( !active[iEcal] ) { if(debug_) cout<<"\t\tcluster locked"<<endl; continue; } // Sanity checks PFBlockElement::Type type = elements[ iEcal ].type(); assert( type == PFBlockElement::ECAL ); PFClusterRef eclusterref = elements[iEcal].clusterRef(); assert(!eclusterref.isNull() ); // Check if this ECAL is not closer to another track - ignore it in that case std::multimap<double, unsigned> sortedTracksEcal; block.associatedElements( iEcal, linkData, sortedTracksEcal, reco::PFBlockElement::TRACK, reco::PFBlock::LINKTEST_ALL ); unsigned jTrack = sortedTracksEcal.begin()->second; if ( jTrack != iTrack ) continue; // double chi2Ecal = block.chi2(jTrack,iEcal,linkData, // reco::PFBlock::LINKTEST_ALL); double distEcal = block.dist(jTrack,iEcal,linkData, reco::PFBlock::LINKTEST_ALL); // totalEcal += eclusterref->energy(); // float ecalEnergyUnCalibrated = eclusterref->energy(); //std::cout << "Ecal Uncalibrated " << ecalEnergyUnCalibrated << std::endl; // check the presence of preshower clusters in the vicinity vector<double> ps1Ene(1,static_cast<double>(0.)); associatePSClusters(iEcal, reco::PFBlockElement::PS1, block, elements, linkData, active, ps1Ene); vector<double> ps2Ene(1,static_cast<double>(0.)); associatePSClusters(iEcal, reco::PFBlockElement::PS2, block, elements, linkData, active, ps2Ene); std::pair<double,double> psEnes = make_pair(ps1Ene[0], ps2Ene[0]); associatedPSs.insert(make_pair(iEcal,psEnes)); // Calibrate the ECAL energy for photons bool crackCorrection = false; float ecalEnergyCalibrated = calibration_->energyEm(*eclusterref,ps1Ene,ps2Ene,crackCorrection); math::XYZVector photonDirection(eclusterref->position().X(), eclusterref->position().Y(), eclusterref->position().Z()); photonDirection = photonDirection.Unit(); if ( !connectedToEcal ) { // This is the closest ECAL cluster - will add its energy later if(debug_) cout<<"\t\t\tclosest: " <<elements[iEcal]<<endl; connectedToEcal = true; // PJ 1st-April-09 : To be done somewhere !!! (Had to comment it, but it is needed) // currentChargedHadron.addElementInBlock( blockref, iEcal ); std::pair<unsigned,math::XYZVector> satellite = make_pair(iEcal,ecalEnergyCalibrated*photonDirection); ecalSatellites.insert( make_pair(-1., satellite) ); } else { // Keep satellite clusters for later std::pair<unsigned,math::XYZVector> satellite = make_pair(iEcal,ecalEnergyCalibrated*photonDirection); ecalSatellites.insert( make_pair(dist, satellite) ); } std::pair<double, unsigned> associatedEcal = make_pair( distEcal, iEcal ); associatedEcals.insert( make_pair(iTrack, associatedEcal) ); } // End loop ecal associated to iTrack } // end case: at least one ecal element associated to iTrack if( useHO_ && !sortedHOs.empty() ) { // start case: at least one ho element associated to iTrack // Loop over all connected HO clusters for ( IE ieho=sortedHOs.begin(); ieho!=sortedHOs.end(); ++ieho ) { unsigned iHO = ieho->second; double distHO = ieho->first; // Ignore HO cluters already used if( !active[iHO] ) { if(debug_) cout<<"\t\tcluster locked"<<endl; continue; } // Sanity checks PFBlockElement::Type type = elements[ iHO ].type(); assert( type == PFBlockElement::HO ); PFClusterRef hoclusterref = elements[iHO].clusterRef(); assert(!hoclusterref.isNull() ); // Check if this HO is not closer to another track - ignore it in that case std::multimap<double, unsigned> sortedTracksHO; block.associatedElements( iHO, linkData, sortedTracksHO, reco::PFBlockElement::TRACK, reco::PFBlock::LINKTEST_ALL ); unsigned jTrack = sortedTracksHO.begin()->second; if ( jTrack != iTrack ) continue; // double chi2HO = block.chi2(jTrack,iHO,linkData, // reco::PFBlock::LINKTEST_ALL); //double distHO = block.dist(jTrack,iHO,linkData, // reco::PFBlock::LINKTEST_ALL); // Increment the total energy by the energy of this HO cluster totalHO += hoclusterref->energy(); active[iHO] = false; // Keep track for later reference in the PFCandidate. std::pair<double, unsigned> associatedHO = make_pair( distHO, iHO ); associatedHOs.insert( make_pair(iTrack, associatedHO) ); } // End loop ho associated to iTrack } // end case: at least one ho element associated to iTrack } // end loop on tracks associated to hcal element iHcal // Include totalHO in totalHCAL for the time being (it will be calibrated as HCAL energy) totalHcal += totalHO; // test compatibility between calo and tracker. ////////////// double caloEnergy = 0.; double slopeEcal = 1.0; double calibEcal = 0.; double calibHcal = 0.; hadronDirection = hadronAtECAL.Unit(); // Determine the expected calo resolution from the total charged momentum double Caloresolution = neutralHadronEnergyResolution( totalChargedMomentum, hclusterref->positionREP().Eta()); Caloresolution *= totalChargedMomentum; // Account for muons Caloresolution = std::sqrt(Caloresolution*Caloresolution + muonHCALError + muonECALError); totalEcal -= std::min(totalEcal,muonECALEnergy); totalHcal -= std::min(totalHcal,muonHCALEnergy); if ( totalEcal < 1E-9 ) photonAtECAL = math::XYZVector(0.,0.,0.); if ( totalHcal < 1E-9 ) hadronAtECAL = math::XYZVector(0.,0.,0.); // Loop over all ECAL satellites, starting for the closest to the various tracks // and adding other satellites until saturation of the total track momentum // Note : for code simplicity, the first element of the loop is the HCAL cluster // with 0 energy in the ECAL for ( IS is = ecalSatellites.begin(); is != ecalSatellites.end(); ++is ) { // Add the energy of this ECAL cluster double previousCalibEcal = calibEcal; double previousCalibHcal = calibHcal; double previousCaloEnergy = caloEnergy; double previousSlopeEcal = slopeEcal; math::XYZVector previousHadronAtECAL = hadronAtECAL; // totalEcal += sqrt(is->second.second.Mag2()); photonAtECAL += is->second.second; calibEcal = std::max(0.,totalEcal); calibHcal = std::max(0.,totalHcal); hadronAtECAL = calibHcal * hadronDirection; // Calibrate ECAL and HCAL energy under the hadron hypothesis. calibration_->energyEmHad(totalChargedMomentum,calibEcal,calibHcal, hclusterref->positionREP().Eta(), hclusterref->positionREP().Phi()); caloEnergy = calibEcal+calibHcal; if ( totalEcal > 0.) slopeEcal = calibEcal/totalEcal; hadronAtECAL = calibHcal * hadronDirection; // Continue looping until all closest clusters are exhausted and as long as // the calorimetric energy does not saturate the total momentum. if ( is->first < 0. || caloEnergy - totalChargedMomentum <= 0. ) { if(debug_) cout<<"\t\t\tactive, adding "<<is->second.second <<" to ECAL energy, and locking"<<endl; active[is->second.first] = false; continue; } // Otherwise, do not consider the last cluster examined and exit. // active[is->second.first] = true; totalEcal -= sqrt(is->second.second.Mag2()); photonAtECAL -= is->second.second; calibEcal = previousCalibEcal; calibHcal = previousCalibHcal; hadronAtECAL = previousHadronAtECAL; slopeEcal = previousSlopeEcal; caloEnergy = previousCaloEnergy; break; } // Sanity check ! assert(caloEnergy>=0); // And now check for hadronic energy excess... //colin: resolution should be measured on the ecal+hcal case. // however, the result will be close. // double Caloresolution = neutralHadronEnergyResolution( caloEnergy ); // Caloresolution *= caloEnergy; // PJ The resolution is on the expected charged calo energy ! //double Caloresolution = neutralHadronEnergyResolution( totalChargedMomentum, hclusterref->positionREP().Eta()); //Caloresolution *= totalChargedMomentum; // that of the charged particles linked to the cluster! double TotalError = sqrt(sumpError2 + Caloresolution*Caloresolution); /* */ if ( totalChargedMomentum - caloEnergy > nSigmaTRACK_*Caloresolution ) { /* cout<<"\tCompare Calo Energy to total charged momentum "<<endl; cout<<"\t\tsum p = "<<totalChargedMomentum<<" +- "<<sqrt(sumpError2)<<endl; cout<<"\t\tsum ecal = "<<totalEcal<<endl; cout<<"\t\tsum hcal = "<<totalHcal<<endl; cout<<"\t\t => Calo Energy = "<<caloEnergy<<" +- "<<Caloresolution<<endl; cout<<"\t\t => Calo Energy- total charged momentum = " <<caloEnergy-totalChargedMomentum<<" +- "<<TotalError<<endl; cout<<endl; cout << "\t\tNumber/momentum of muons found in the block : " << nMuons << std::endl; */ // First consider loose muons if ( nMuons > 0 ) { for ( IT it = associatedTracks.begin(); it != associatedTracks.end(); ++it ) { unsigned iTrack = it->second.first; // Only active tracks if ( !active[iTrack] ) continue; // Only muons if ( !it->second.second ) continue; double trackMomentum = elements[it->second.first].trackRef()->p(); // look for ECAL elements associated to iTrack (associated to iHcal) std::multimap<double, unsigned> sortedEcals; block.associatedElements( iTrack, linkData, sortedEcals, reco::PFBlockElement::ECAL, reco::PFBlock::LINKTEST_ALL ); std::multimap<double, unsigned> sortedHOs; block.associatedElements( iTrack, linkData, sortedHOs, reco::PFBlockElement::HO, reco::PFBlock::LINKTEST_ALL ); //Here allow for loose muons! unsigned tmpi = reconstructTrack( elements[iTrack],true); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iTrack ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iHcal ); double muonHcal = std::min(muonHCAL_[0]+muonHCAL_[1],totalHcal-totalHO); double muonHO = 0.; (*pfCandidates_)[tmpi].setHcalEnergy(totalHcal,muonHcal); if( !sortedEcals.empty() ) { unsigned iEcal = sortedEcals.begin()->second; PFClusterRef eclusterref = elements[iEcal].clusterRef(); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iEcal); double muonEcal = std::min(muonECAL_[0]+muonECAL_[1],eclusterref->energy()); (*pfCandidates_)[tmpi].setEcalEnergy(eclusterref->energy(),muonEcal); } if( useHO_ && !sortedHOs.empty() ) { unsigned iHO = sortedHOs.begin()->second; PFClusterRef hoclusterref = elements[iHO].clusterRef(); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iHO); muonHO = std::min(muonHO_[0]+muonHO_[1],hoclusterref->energy()); (*pfCandidates_)[tmpi].setHcalEnergy(totalHcal-totalHO,muonHcal); (*pfCandidates_)[tmpi].setHoEnergy(hoclusterref->energy(),muonHO); } // Remove it from the block const math::XYZPointF& chargedPosition = dynamic_cast<const reco::PFBlockElementTrack*>(&elements[it->second.first])->positionAtECALEntrance(); math::XYZVector chargedDirection(chargedPosition.X(), chargedPosition.Y(), chargedPosition.Z()); chargedDirection = chargedDirection.Unit(); totalChargedMomentum -= trackMomentum; // Update the calo energies if ( totalEcal > 0. ) calibEcal -= std::min(calibEcal,muonECAL_[0]*calibEcal/totalEcal); if ( totalHcal > 0. ) calibHcal -= std::min(calibHcal,muonHCAL_[0]*calibHcal/totalHcal); totalEcal -= std::min(totalEcal,muonECAL_[0]); totalHcal -= std::min(totalHcal,muonHCAL_[0]); if ( totalEcal > muonECAL_[0] ) photonAtECAL -= muonECAL_[0] * chargedDirection; if ( totalHcal > muonHCAL_[0] ) hadronAtECAL -= muonHCAL_[0]*calibHcal/totalHcal * chargedDirection; caloEnergy = calibEcal+calibHcal; muonHCALEnergy += muonHCAL_[0]; muonHCALError += muonHCAL_[1]*muonHCAL_[1]; if ( muonHO > 0. ) { muonHCALEnergy += muonHO_[0]; muonHCALError += muonHO_[1]*muonHO_[1]; if ( totalHcal > 0. ) { calibHcal -= std::min(calibHcal,muonHO_[0]*calibHcal/totalHcal); totalHcal -= std::min(totalHcal,muonHO_[0]); } } muonECALEnergy += muonECAL_[0]; muonECALError += muonECAL_[1]*muonECAL_[1]; active[iTrack] = false; // Stop the loop whenever enough muons are removed //Commented out: Keep looking for muons since they often come in pairs -Matt //if ( totalChargedMomentum < caloEnergy ) break; } // New calo resolution. Caloresolution = neutralHadronEnergyResolution( totalChargedMomentum, hclusterref->positionREP().Eta()); Caloresolution *= totalChargedMomentum; Caloresolution = std::sqrt(Caloresolution*Caloresolution + muonHCALError + muonECALError); } } /* if(debug_){ cout<<"\tBefore Cleaning "<<endl; cout<<"\tCompare Calo Energy to total charged momentum "<<endl; cout<<"\t\tsum p = "<<totalChargedMomentum<<" +- "<<sqrt(sumpError2)<<endl; cout<<"\t\tsum ecal = "<<totalEcal<<endl; cout<<"\t\tsum hcal = "<<totalHcal<<endl; cout<<"\t\t => Calo Energy = "<<caloEnergy<<" +- "<<Caloresolution<<endl; cout<<"\t\t => Calo Energy- total charged momentum = " <<caloEnergy-totalChargedMomentum<<" +- "<<TotalError<<endl; cout<<endl; } */ // Second consider bad tracks (if still needed after muon removal) unsigned corrTrack = 10000000; double corrFact = 1.; if (rejectTracks_Bad_ && totalChargedMomentum - caloEnergy > nSigmaTRACK_*Caloresolution) { for ( IT it = associatedTracks.begin(); it != associatedTracks.end(); ++it ) { unsigned iTrack = it->second.first; // Only active tracks if ( !active[iTrack] ) continue; const reco::TrackRef& trackref = elements[it->second.first].trackRef(); double dptRel = fabs(it->first)/trackref->pt()*100; bool isSecondary = isFromSecInt(elements[iTrack], "secondary"); bool isPrimary = isFromSecInt(elements[iTrack], "primary"); if ( isSecondary && dptRel < dptRel_DispVtx_ ) continue; // Consider only bad tracks if ( fabs(it->first) < ptError_ ) break; // What would become the block charged momentum if this track were removed double wouldBeTotalChargedMomentum = totalChargedMomentum - trackref->p(); // Reject worst tracks, as long as the total charged momentum // is larger than the calo energy if ( wouldBeTotalChargedMomentum > caloEnergy ) { if (debug_ && isSecondary) { cout << "In bad track rejection step dptRel = " << dptRel << " dptRel_DispVtx_ = " << dptRel_DispVtx_ << endl; cout << "The calo energy would be still smaller even without this track but it is attached to a NI"<< endl; } if(isPrimary || (isSecondary && dptRel < dptRel_DispVtx_)) continue; active[iTrack] = false; totalChargedMomentum = wouldBeTotalChargedMomentum; if ( debug_ ) std::cout << "\tElement " << elements[iTrack] << " rejected (Dpt = " << -it->first << " GeV/c, algo = " << trackref->algo() << ")" << std::endl; // Just rescale the nth worst track momentum to equalize the calo energy } else { if(isPrimary) break; corrTrack = iTrack; corrFact = (caloEnergy - wouldBeTotalChargedMomentum)/elements[it->second.first].trackRef()->p(); if ( trackref->p()*corrFact < 0.05 ) { corrFact = 0.; active[iTrack] = false; } totalChargedMomentum -= trackref->p()*(1.-corrFact); if ( debug_ ) std::cout << "\tElement " << elements[iTrack] << " (Dpt = " << -it->first << " GeV/c, algo = " << trackref->algo() << ") rescaled by " << corrFact << " Now the total charged momentum is " << totalChargedMomentum << endl; break; } } } // New determination of the calo and track resolution avec track deletion/rescaling. Caloresolution = neutralHadronEnergyResolution( totalChargedMomentum, hclusterref->positionREP().Eta()); Caloresolution *= totalChargedMomentum; Caloresolution = std::sqrt(Caloresolution*Caloresolution + muonHCALError + muonECALError); // Check if the charged momentum is still very inconsistent with the calo measurement. // In this case, just drop all tracks from 4th and 5th iteration linked to this block if ( rejectTracks_Step45_ && sortedTracks.size() > 1 && totalChargedMomentum - caloEnergy > nSigmaTRACK_*Caloresolution ) { for ( IT it = associatedTracks.begin(); it != associatedTracks.end(); ++it ) { unsigned iTrack = it->second.first; reco::TrackRef trackref = elements[iTrack].trackRef(); if ( !active[iTrack] ) continue; double dptRel = fabs(it->first)/trackref->pt()*100; bool isPrimaryOrSecondary = isFromSecInt(elements[iTrack], "all"); if (isPrimaryOrSecondary && dptRel < dptRel_DispVtx_) continue; // switch (trackref->algo()) { case TrackBase::ctf: case TrackBase::iter0: case TrackBase::iter1: case TrackBase::iter2: case TrackBase::iter3: case TrackBase::iter4: break; case TrackBase::iter5: case TrackBase::iter6: active[iTrack] = false; totalChargedMomentum -= trackref->p(); if ( debug_ ) std::cout << "\tElement " << elements[iTrack] << " rejected (Dpt = " << -it->first << " GeV/c, algo = " << trackref->algo() << ")" << std::endl; break; default: break; } } } // New determination of the calo and track resolution avec track deletion/rescaling. Caloresolution = neutralHadronEnergyResolution( totalChargedMomentum, hclusterref->positionREP().Eta()); Caloresolution *= totalChargedMomentum; Caloresolution = std::sqrt(Caloresolution*Caloresolution + muonHCALError + muonECALError); // Make PF candidates with the remaining tracks in the block sumpError2 = 0.; for ( IT it = associatedTracks.begin(); it != associatedTracks.end(); ++it ) { unsigned iTrack = it->second.first; if ( !active[iTrack] ) continue; reco::TrackRef trackRef = elements[iTrack].trackRef(); double trackMomentum = trackRef->p(); double Dp = trackRef->qoverpError()*trackMomentum*trackMomentum; unsigned tmpi = reconstructTrack( elements[iTrack] ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iTrack ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iHcal ); std::pair<II,II> myEcals = associatedEcals.equal_range(iTrack); for (II ii=myEcals.first; ii!=myEcals.second; ++ii ) { unsigned iEcal = ii->second.second; if ( active[iEcal] ) continue; (*pfCandidates_)[tmpi].addElementInBlock( blockref, iEcal ); } if (useHO_) { std::pair<II,II> myHOs = associatedHOs.equal_range(iTrack); for (II ii=myHOs.first; ii!=myHOs.second; ++ii ) { unsigned iHO = ii->second.second; if ( active[iHO] ) continue; (*pfCandidates_)[tmpi].addElementInBlock( blockref, iHO ); } } if ( iTrack == corrTrack ) { (*pfCandidates_)[tmpi].rescaleMomentum(corrFact); trackMomentum *= corrFact; } chargedHadronsIndices.push_back( tmpi ); chargedHadronsInBlock.push_back( iTrack ); active[iTrack] = false; hcalP.push_back(trackMomentum); hcalDP.push_back(Dp); if (Dp/trackMomentum > maxDPovP) maxDPovP = Dp/trackMomentum; sumpError2 += Dp*Dp; } // The total uncertainty of the difference Calo-Track TotalError = sqrt(sumpError2 + Caloresolution*Caloresolution); if ( debug_ ) { cout<<"\tCompare Calo Energy to total charged momentum "<<endl; cout<<"\t\tsum p = "<<totalChargedMomentum<<" +- "<<sqrt(sumpError2)<<endl; cout<<"\t\tsum ecal = "<<totalEcal<<endl; cout<<"\t\tsum hcal = "<<totalHcal<<endl; cout<<"\t\t => Calo Energy = "<<caloEnergy<<" +- "<<Caloresolution<<endl; cout<<"\t\t => Calo Energy- total charged momentum = " <<caloEnergy-totalChargedMomentum<<" +- "<<TotalError<<endl; cout<<endl; } /* */ double nsigma = nSigmaHCAL(totalChargedMomentum,hclusterref->positionREP().Eta()); //double nsigma = nSigmaHCAL(caloEnergy,hclusterref->positionREP().Eta()); if ( abs(totalChargedMomentum-caloEnergy)<nsigma*TotalError ) { // deposited caloEnergy compatible with total charged momentum // if tracking errors are large take weighted average if(debug_) { cout<<"\t\tcase 1: COMPATIBLE " <<"|Calo Energy- total charged momentum| = " <<abs(caloEnergy-totalChargedMomentum) <<" < "<<nsigma<<" x "<<TotalError<<endl; if (maxDPovP < 0.1 ) cout<<"\t\t\tmax DP/P = "<< maxDPovP <<" less than 0.1: do nothing "<<endl; else cout<<"\t\t\tmax DP/P = "<< maxDPovP <<" > 0.1: take weighted averages "<<endl; } // if max DP/P < 10% do nothing if (maxDPovP > 0.1) { // for each track associated to hcal // int nrows = tkIs.size(); int nrows = chargedHadronsIndices.size(); TMatrixTSym<double> a (nrows); TVectorD b (nrows); TVectorD check(nrows); double sigma2E = Caloresolution*Caloresolution; for(int i=0; i<nrows; i++) { double sigma2i = hcalDP[i]*hcalDP[i]; if (debug_){ cout<<"\t\t\ttrack associated to hcal "<<i <<" P = "<<hcalP[i]<<" +- " <<hcalDP[i]<<endl; } a(i,i) = 1./sigma2i + 1./sigma2E; b(i) = hcalP[i]/sigma2i + caloEnergy/sigma2E; for(int j=0; j<nrows; j++) { if (i==j) continue; a(i,j) = 1./sigma2E; } // end loop on j } // end loop on i // solve ax = b //if (debug_){// debug1 //cout<<" matrix a(i,j) "<<endl; //a.Print(); //cout<<" vector b(i) "<<endl; //b.Print(); //} // debug1 TDecompChol decomp(a); bool ok = false; TVectorD x = decomp.Solve(b, ok); // for each track create a PFCandidate track // with a momentum rescaled to weighted average if (ok) { for (int i=0; i<nrows; i++){ // unsigned iTrack = trackInfos[i].index; unsigned ich = chargedHadronsIndices[i]; double rescaleFactor = x(i)/hcalP[i]; (*pfCandidates_)[ich].rescaleMomentum( rescaleFactor ); if(debug_){ cout<<"\t\t\told p "<<hcalP[i] <<" new p "<<x(i) <<" rescale "<<rescaleFactor<<endl; } } } else { cerr<<"not ok!"<<endl; assert(0); } } } else if( caloEnergy > totalChargedMomentum ) { //case 2: caloEnergy > totalChargedMomentum + nsigma*TotalError //there is an excess of energy in the calos //create a neutral hadron or a photon /* //If it's isolated don't create neutrals since the energy deposit is always coming from a showering muon bool thisIsAnIsolatedMuon = false; for(IE ie = sortedTracks.begin(); ie != sortedTracks.end(); ++ie ) { unsigned iTrack = ie->second; if(PFMuonAlgo::isIsolatedMuon(elements[iTrack].muonRef())) thisIsAnIsolatedMuon = true; } if(thisIsAnIsolatedMuon){ if(debug_)cout<<" Not looking for neutral b/c this is an isolated muon "<<endl; break; } */ double eNeutralHadron = caloEnergy - totalChargedMomentum; double ePhoton = (caloEnergy - totalChargedMomentum) / slopeEcal; if(debug_) { if(!sortedTracks.empty() ){ cout<<"\t\tcase 2: NEUTRAL DETECTION " <<caloEnergy<<" > "<<nsigma<<"x"<<TotalError <<" + "<<totalChargedMomentum<<endl; cout<<"\t\tneutral activity detected: "<<endl <<"\t\t\t photon = "<<ePhoton<<endl <<"\t\t\tor neutral hadron = "<<eNeutralHadron<<endl; cout<<"\t\tphoton or hadron ?"<<endl;} if(sortedTracks.empty() ) cout<<"\t\tno track -> hadron "<<endl; else cout<<"\t\t"<<sortedTracks.size() <<"tracks -> check if the excess is photonic or hadronic"<<endl; } double ratioMax = 0.; reco::PFClusterRef maxEcalRef; unsigned maxiEcal= 9999; // for each track associated to hcal: iterator IE ie : for(IE ie = sortedTracks.begin(); ie != sortedTracks.end(); ++ie ) { unsigned iTrack = ie->second; PFBlockElement::Type type = elements[iTrack].type(); assert( type == reco::PFBlockElement::TRACK ); reco::TrackRef trackRef = elements[iTrack].trackRef(); assert( !trackRef.isNull() ); II iae = associatedEcals.find(iTrack); if( iae == associatedEcals.end() ) continue; // double distECAL = iae->second.first; unsigned iEcal = iae->second.second; PFBlockElement::Type typeEcal = elements[iEcal].type(); assert(typeEcal == reco::PFBlockElement::ECAL); reco::PFClusterRef clusterRef = elements[iEcal].clusterRef(); assert( !clusterRef.isNull() ); double pTrack = trackRef->p(); double eECAL = clusterRef->energy(); double eECALOverpTrack = eECAL / pTrack; if ( eECALOverpTrack > ratioMax ) { ratioMax = eECALOverpTrack; maxEcalRef = clusterRef; maxiEcal = iEcal; } } // end loop on tracks associated to hcal: iterator IE ie std::vector<reco::PFClusterRef> pivotalClusterRef; std::vector<unsigned> iPivotal; std::vector<double> particleEnergy, ecalEnergy, hcalEnergy, rawecalEnergy, rawhcalEnergy; std::vector<math::XYZVector> particleDirection; // If the excess is smaller than the ecal energy, assign the whole // excess to a photon if ( ePhoton < totalEcal || eNeutralHadron-calibEcal < 1E-10 ) { if ( !maxEcalRef.isNull() ) { particleEnergy.push_back(ePhoton); particleDirection.push_back(photonAtECAL); ecalEnergy.push_back(ePhoton); hcalEnergy.push_back(0.); rawecalEnergy.push_back(totalEcal); rawhcalEnergy.push_back(totalHcal); pivotalClusterRef.push_back(maxEcalRef); iPivotal.push_back(maxiEcal); // So the merged photon energy is, mergedPhotonEnergy = ePhoton; } } else { // Otherwise assign the whole ECAL energy to the photon if ( !maxEcalRef.isNull() ) { pivotalClusterRef.push_back(maxEcalRef); particleEnergy.push_back(totalEcal); particleDirection.push_back(photonAtECAL); ecalEnergy.push_back(totalEcal); hcalEnergy.push_back(0.); rawecalEnergy.push_back(totalEcal); rawhcalEnergy.push_back(totalHcal); iPivotal.push_back(maxiEcal); // So the merged photon energy is, mergedPhotonEnergy = totalEcal; } // ... and assign the remaining excess to a neutral hadron mergedNeutralHadronEnergy = eNeutralHadron-calibEcal; if ( mergedNeutralHadronEnergy > 1.0 ) { pivotalClusterRef.push_back(hclusterref); particleEnergy.push_back(mergedNeutralHadronEnergy); particleDirection.push_back(hadronAtECAL); ecalEnergy.push_back(0.); hcalEnergy.push_back(mergedNeutralHadronEnergy); rawecalEnergy.push_back(totalEcal); rawhcalEnergy.push_back(totalHcal); iPivotal.push_back(iHcal); } } // reconstructing a merged neutral // the type of PFCandidate is known from the // reference to the pivotal cluster. for ( unsigned iPivot=0; iPivot<iPivotal.size(); ++iPivot ) { if ( particleEnergy[iPivot] < 0. ) std::cout << "ALARM = Negative energy ! " << particleEnergy[iPivot] << std::endl; bool useDirection = true; unsigned tmpi = reconstructCluster( *pivotalClusterRef[iPivot], particleEnergy[iPivot], useDirection, particleDirection[iPivot].X(), particleDirection[iPivot].Y(), particleDirection[iPivot].Z()); (*pfCandidates_)[tmpi].setEcalEnergy( rawecalEnergy[iPivot],ecalEnergy[iPivot] ); if ( !useHO_ ) { (*pfCandidates_)[tmpi].setHcalEnergy( rawhcalEnergy[iPivot],hcalEnergy[iPivot] ); (*pfCandidates_)[tmpi].setHoEnergy(0., 0.); } else { (*pfCandidates_)[tmpi].setHcalEnergy( rawhcalEnergy[iPivot]-totalHO,hcalEnergy[iPivot]*(1.-totalHO/rawhcalEnergy[iPivot])); (*pfCandidates_)[tmpi].setHoEnergy(totalHO, totalHO * hcalEnergy[iPivot]/rawhcalEnergy[iPivot]); } (*pfCandidates_)[tmpi].setPs1Energy( 0. ); (*pfCandidates_)[tmpi].setPs2Energy( 0. ); (*pfCandidates_)[tmpi].set_mva_nothing_gamma( -1. ); // (*pfCandidates_)[tmpi].addElement(&elements[iPivotal]); // (*pfCandidates_)[tmpi].addElementInBlock(blockref, iPivotal[iPivot]); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iHcal ); for ( unsigned ich=0; ich<chargedHadronsInBlock.size(); ++ich) { unsigned iTrack = chargedHadronsInBlock[ich]; (*pfCandidates_)[tmpi].addElementInBlock( blockref, iTrack ); // Assign the position of the track at the ECAL entrance const math::XYZPointF& chargedPosition = dynamic_cast<const reco::PFBlockElementTrack*>(&elements[iTrack])->positionAtECALEntrance(); (*pfCandidates_)[tmpi].setPositionAtECALEntrance(chargedPosition); std::pair<II,II> myEcals = associatedEcals.equal_range(iTrack); for (II ii=myEcals.first; ii!=myEcals.second; ++ii ) { unsigned iEcal = ii->second.second; if ( active[iEcal] ) continue; (*pfCandidates_)[tmpi].addElementInBlock( blockref, iEcal ); } } } } // excess of energy // will now share the hcal energy between the various charged hadron // candidates, taking into account the potential neutral hadrons double totalHcalEnergyCalibrated = calibHcal; double totalEcalEnergyCalibrated = calibEcal; //JB: The question is: we've resolved the merged photons cleanly, but how should //the remaining hadrons be assigned the remaining ecal energy? //*Temporary solution*: follow HCAL example with fractions... /* if(totalEcal>0) { // removing ecal energy from abc calibration totalHcalEnergyCalibrated -= calibEcal; // totalHcalEnergyCalibrated -= calibration_->paramECALplusHCAL_slopeECAL() * totalEcal; } */ // else caloEnergy = hcal only calibrated energy -> ok. // remove the energy of the potential neutral hadron totalHcalEnergyCalibrated -= mergedNeutralHadronEnergy; // similarly for the merged photons totalEcalEnergyCalibrated -= mergedPhotonEnergy; // share between the charged hadrons //COLIN can compute this before // not exactly equal to sum p, this is sum E double chargedHadronsTotalEnergy = 0; for( unsigned ich=0; ich<chargedHadronsIndices.size(); ++ich ) { unsigned index = chargedHadronsIndices[ich]; reco::PFCandidate& chargedHadron = (*pfCandidates_)[index]; chargedHadronsTotalEnergy += chargedHadron.energy(); } for( unsigned ich=0; ich<chargedHadronsIndices.size(); ++ich ) { unsigned index = chargedHadronsIndices[ich]; reco::PFCandidate& chargedHadron = (*pfCandidates_)[index]; float fraction = chargedHadron.energy()/chargedHadronsTotalEnergy; if ( !useHO_ ) { chargedHadron.setHcalEnergy( fraction * totalHcal, fraction * totalHcalEnergyCalibrated ); chargedHadron.setHoEnergy( 0., 0. ); } else { chargedHadron.setHcalEnergy( fraction * (totalHcal-totalHO), fraction * totalHcalEnergyCalibrated * (1.-totalHO/totalHcal) ); chargedHadron.setHoEnergy( fraction * totalHO, fraction * totalHO * totalHcalEnergyCalibrated / totalHcal ); } //JB: fixing up (previously omitted) setting of ECAL energy gouzevit chargedHadron.setEcalEnergy( fraction * totalEcal, fraction * totalEcalEnergyCalibrated ); } // Finally treat unused ecal satellites as photons. for ( IS is = ecalSatellites.begin(); is != ecalSatellites.end(); ++is ) { // Ignore satellites already taken unsigned iEcal = is->second.first; if ( !active[iEcal] ) continue; // Sanity checks again (well not useful, this time!) PFBlockElement::Type type = elements[ iEcal ].type(); assert( type == PFBlockElement::ECAL ); PFClusterRef eclusterref = elements[iEcal].clusterRef(); assert(!eclusterref.isNull() ); // Lock the cluster active[iEcal] = false; // Find the associated tracks std::multimap<double, unsigned> assTracks; block.associatedElements( iEcal, linkData, assTracks, reco::PFBlockElement::TRACK, reco::PFBlock::LINKTEST_ALL ); // Create a photon unsigned tmpi = reconstructCluster( *eclusterref, sqrt(is->second.second.Mag2()) ); (*pfCandidates_)[tmpi].setEcalEnergy( eclusterref->energy(),sqrt(is->second.second.Mag2()) ); (*pfCandidates_)[tmpi].setHcalEnergy( 0., 0. ); (*pfCandidates_)[tmpi].setHoEnergy( 0., 0. ); (*pfCandidates_)[tmpi].setPs1Energy( associatedPSs[iEcal].first ); (*pfCandidates_)[tmpi].setPs2Energy( associatedPSs[iEcal].second ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iEcal ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, sortedTracks.begin()->second) ; } } // end loop on hcal element iHcal= hcalIs[i] // Processing the remaining HCAL clusters if(debug_) { cout<<endl; if(debug_) cout<<endl <<"---- loop remaining hcal ------- "<<endl; } //COLINFEB16 // now dealing with the HCAL elements that are not linked to any track for(unsigned ihcluster=0; ihcluster<hcalIs.size(); ihcluster++) { unsigned iHcal = hcalIs[ihcluster]; // Keep ECAL and HO elements for reference in the PFCandidate std::vector<unsigned> ecalRefs; std::vector<unsigned> hoRefs; if(debug_) cout<<endl<<elements[iHcal]<<" "; if( !active[iHcal] ) { if(debug_) cout<<"not active"<<endl; continue; } // Find the ECAL elements linked to it std::multimap<double, unsigned> ecalElems; block.associatedElements( iHcal, linkData, ecalElems , reco::PFBlockElement::ECAL, reco::PFBlock::LINKTEST_ALL ); // Loop on these ECAL elements float totalEcal = 0.; float ecalMax = 0.; reco::PFClusterRef eClusterRef; for(IE ie = ecalElems.begin(); ie != ecalElems.end(); ++ie ) { unsigned iEcal = ie->second; double dist = ie->first; PFBlockElement::Type type = elements[iEcal].type(); assert( type == PFBlockElement::ECAL ); // Check if already used if( !active[iEcal] ) continue; // Check the distance (one HCALPlusECAL tower, roughly) // if ( dist > 0.15 ) continue; //COLINFEB16 // what could be done is to // - link by rechit. // - take in the neutral hadron all the ECAL clusters // which are within the same CaloTower, according to the distance, // except the ones which are closer to another HCAL cluster. // - all the other ECAL linked to this HCAL are photons. // // about the closest HCAL cluster. // it could maybe be easier to loop on the ECAL clusters first // to cut the links to all HCAL clusters except the closest, as is // done in the first track loop. But maybe not! // or add an helper function to the PFAlgo class to ask // if a given element is the closest of a given type to another one? // Check if not closer from another free HCAL std::multimap<double, unsigned> hcalElems; block.associatedElements( iEcal, linkData, hcalElems , reco::PFBlockElement::HCAL, reco::PFBlock::LINKTEST_ALL ); bool isClosest = true; for(IE ih = hcalElems.begin(); ih != hcalElems.end(); ++ih ) { unsigned jHcal = ih->second; double distH = ih->first; if ( !active[jHcal] ) continue; if ( distH < dist ) { isClosest = false; break; } } if (!isClosest) continue; if(debug_) { cout<<"\telement "<<elements[iEcal]<<" linked with dist "<< dist<<endl; cout<<"Added to HCAL cluster to form a neutral hadron"<<endl; } reco::PFClusterRef eclusterRef = elements[iEcal].clusterRef(); assert( !eclusterRef.isNull() ); // Check the presence of ps clusters in the vicinity vector<double> ps1Ene(1,static_cast<double>(0.)); associatePSClusters(iEcal, reco::PFBlockElement::PS1, block, elements, linkData, active, ps1Ene); vector<double> ps2Ene(1,static_cast<double>(0.)); associatePSClusters(iEcal, reco::PFBlockElement::PS2, block, elements, linkData, active, ps2Ene); bool crackCorrection = false; double ecalEnergy = calibration_->energyEm(*eclusterRef,ps1Ene,ps2Ene,crackCorrection); //std::cout << "EcalEnergy, ps1, ps2 = " << ecalEnergy // << ", " << ps1Ene[0] << ", " << ps2Ene[0] << std::endl; totalEcal += ecalEnergy; if ( ecalEnergy > ecalMax ) { ecalMax = ecalEnergy; eClusterRef = eclusterRef; } ecalRefs.push_back(iEcal); active[iEcal] = false; }// End loop ECAL // Now find the HO clusters linked to the HCAL cluster double totalHO = 0.; double hoMax = 0.; //unsigned jHO = 0; if (useHO_) { std::multimap<double, unsigned> hoElems; block.associatedElements( iHcal, linkData, hoElems , reco::PFBlockElement::HO, reco::PFBlock::LINKTEST_ALL ); // Loop on these HO elements // double totalHO = 0.; // double hoMax = 0.; // unsigned jHO = 0; reco::PFClusterRef hoClusterRef; for(IE ie = hoElems.begin(); ie != hoElems.end(); ++ie ) { unsigned iHO = ie->second; double dist = ie->first; PFBlockElement::Type type = elements[iHO].type(); assert( type == PFBlockElement::HO ); // Check if already used if( !active[iHO] ) continue; // Check the distance (one HCALPlusHO tower, roughly) // if ( dist > 0.15 ) continue; // Check if not closer from another free HCAL std::multimap<double, unsigned> hcalElems; block.associatedElements( iHO, linkData, hcalElems , reco::PFBlockElement::HCAL, reco::PFBlock::LINKTEST_ALL ); bool isClosest = true; for(IE ih = hcalElems.begin(); ih != hcalElems.end(); ++ih ) { unsigned jHcal = ih->second; double distH = ih->first; if ( !active[jHcal] ) continue; if ( distH < dist ) { isClosest = false; break; } } if (!isClosest) continue; if(debug_ && useHO_) { cout<<"\telement "<<elements[iHO]<<" linked with dist "<< dist<<endl; cout<<"Added to HCAL cluster to form a neutral hadron"<<endl; } reco::PFClusterRef hoclusterRef = elements[iHO].clusterRef(); assert( !hoclusterRef.isNull() ); double hoEnergy = hoclusterRef->energy(); // calibration_->energyEm(*hoclusterRef,ps1Ene,ps2Ene,crackCorrection); totalHO += hoEnergy; if ( hoEnergy > hoMax ) { hoMax = hoEnergy; hoClusterRef = hoclusterRef; //jHO = iHO; } hoRefs.push_back(iHO); active[iHO] = false; }// End loop HO } PFClusterRef hclusterRef = elements[iHcal].clusterRef(); assert( !hclusterRef.isNull() ); // HCAL energy double totalHcal = hclusterRef->energy(); // Include the HO energy if ( useHO_ ) totalHcal += totalHO; // std::cout << "Hcal Energy,eta : " << totalHcal // << ", " << hclusterRef->positionREP().Eta() // << std::endl; // Calibration //double caloEnergy = totalHcal; // double slopeEcal = 1.0; double calibEcal = totalEcal > 0. ? totalEcal : 0.; double calibHcal = std::max(0.,totalHcal); if ( hclusterRef->layer() == PFLayer::HF_HAD || hclusterRef->layer() == PFLayer::HF_EM ) { //caloEnergy = totalHcal/0.7; calibEcal = totalEcal; } else { calibration_->energyEmHad(-1.,calibEcal,calibHcal, hclusterRef->positionREP().Eta(), hclusterRef->positionREP().Phi()); //caloEnergy = calibEcal+calibHcal; } // std::cout << "CalibEcal,HCal = " << calibEcal << ", " << calibHcal << std::endl; // std::cout << "-------------------------------------------------------------------" << std::endl; // ECAL energy : calibration // double particleEnergy = caloEnergy; // double particleEnergy = totalEcal + calibHcal; // particleEnergy /= (1.-0.724/sqrt(particleEnergy)-0.0226/particleEnergy); unsigned tmpi = reconstructCluster( *hclusterRef, calibEcal+calibHcal ); (*pfCandidates_)[tmpi].setEcalEnergy( totalEcal, calibEcal ); if ( !useHO_ ) { (*pfCandidates_)[tmpi].setHcalEnergy( totalHcal, calibHcal ); (*pfCandidates_)[tmpi].setHoEnergy(0.,0.); } else { (*pfCandidates_)[tmpi].setHcalEnergy( totalHcal-totalHO, calibHcal*(1.-totalHO/totalHcal)); (*pfCandidates_)[tmpi].setHoEnergy(totalHO,totalHO*calibHcal/totalHcal); } (*pfCandidates_)[tmpi].setPs1Energy( 0. ); (*pfCandidates_)[tmpi].setPs2Energy( 0. ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iHcal ); for (unsigned iec=0; iec<ecalRefs.size(); ++iec) (*pfCandidates_)[tmpi].addElementInBlock( blockref, ecalRefs[iec] ); for (unsigned iho=0; iho<hoRefs.size(); ++iho) (*pfCandidates_)[tmpi].addElementInBlock( blockref, hoRefs[iho] ); }//loop hcal elements if(debug_) { cout<<endl; if(debug_) cout<<endl<<"---- loop ecal------- "<<endl; } // for each ecal element iEcal = ecalIs[i] in turn: for(unsigned i=0; i<ecalIs.size(); i++) { unsigned iEcal = ecalIs[i]; if(debug_) cout<<endl<<elements[iEcal]<<" "; if( ! active[iEcal] ) { if(debug_) cout<<"not active"<<endl; continue; } PFBlockElement::Type type = elements[ iEcal ].type(); assert( type == PFBlockElement::ECAL ); PFClusterRef clusterref = elements[iEcal].clusterRef(); assert(!clusterref.isNull() ); active[iEcal] = false; // Check the presence of ps clusters in the vicinity vector<double> ps1Ene(1,static_cast<double>(0.)); associatePSClusters(iEcal, reco::PFBlockElement::PS1, block, elements, linkData, active, ps1Ene); vector<double> ps2Ene(1,static_cast<double>(0.)); associatePSClusters(iEcal, reco::PFBlockElement::PS2, block, elements, linkData, active, ps2Ene); bool crackCorrection = false; float ecalEnergy = calibration_->energyEm(*clusterref,ps1Ene,ps2Ene,crackCorrection); // float ecalEnergy = calibration_->energyEm( clusterref->energy() ); double particleEnergy = ecalEnergy; unsigned tmpi = reconstructCluster( *clusterref, particleEnergy ); (*pfCandidates_)[tmpi].setEcalEnergy( clusterref->energy(),ecalEnergy ); (*pfCandidates_)[tmpi].setHcalEnergy( 0., 0. ); (*pfCandidates_)[tmpi].setHoEnergy( 0., 0. ); (*pfCandidates_)[tmpi].setPs1Energy( 0. ); (*pfCandidates_)[tmpi].setPs2Energy( 0. ); (*pfCandidates_)[tmpi].addElementInBlock( blockref, iEcal ); } // end loop on ecal elements iEcal = ecalIs[i] } // end processBlock