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#include<iostream> |
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#include<math.h> |
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#include "TFile.h" |
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#include "TTree.h" |
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TFile *outFile; |
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TTree *tree; |
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float getPtFromMatchedJet( susy::Photon, susy::Event ); |
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float deltaR( TLorentzVector, TLorentzVector ); |
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private: |
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int processNEvents; // number of events to be processed |
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int reportEvery; |
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std::vector<tree::Jet> jet; |
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float met; |
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int nVertex; |
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int nElectron; |
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float weight; |
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float leadingPhotonPt; |
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}; |
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TreeWriter::TreeWriter(TString inputName, TString outputName) { |
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// read the input file |
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inputFile = new TFile( inputName, "read" ); |
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delete inputTree->GetCurrentFile(); |
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} |
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float TreeWriter::deltaR( TLorentzVector v1, TLorentzVector v2 ) { |
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return sqrt(pow(v1.Eta() - v2.Eta(), 2) + pow(v1.Phi() - v2.Phi(), 2) ); |
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} |
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float TreeWriter::getPtFromMatchedJet( susy::Photon photon, susy::Event event ) { |
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/** |
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* \brief Takes jet p_T as photon p_T |
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* |
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* At first all jets with DeltaR < 0.3 (isolation cone) are searched. |
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* If several jets are found, take the one with the minimal pt difference |
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* compared to the photon. If no such jets are found, return 0 |
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* TODO: remove photon matched jet from jet-selection? |
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*/ |
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std::vector<susy::PFJet> nearJets; |
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nearJets.clear(); |
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|
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std::map<TString,susy::PFJetCollection>::iterator pfJets_it = event.pfJets.find("ak5"); |
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if(pfJets_it == event.pfJets.end()){ |
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if(event.pfJets.size() > 0) std::cout << "JetCollection is not available!!!" << std::endl; |
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} else { |
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susy::PFJetCollection& jetColl = pfJets_it->second; |
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for(std::vector<susy::PFJet>::iterator it = jetColl.begin(); |
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it != jetColl.end(); it++) { |
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std::map<TString,Float_t>::iterator s_it = it->jecScaleFactors.find("L2L3"); |
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if (s_it == it->jecScaleFactors.end()) { |
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std::cout << "JEC is not available for this jet!!!" << std::endl; |
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continue; |
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} |
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float scale = s_it->second; |
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TLorentzVector corrP4 = scale * it->momentum; |
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float deltaR_ = deltaR(photon.momentum, corrP4 ); |
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if (deltaR_ > 0.3) continue; |
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nearJets.push_back( *it ); |
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}// for jet |
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}// if, else |
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if ( nearJets.size() == 0 ) { |
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std::cout << "No jet with ΔR < .3 found, set p_T to 0" << std::endl; |
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return 0; |
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} |
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float pt = 0; |
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float minPtDifferenz = 1E20; // should be very high |
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for( std::vector<susy::PFJet>::iterator it = nearJets.begin(), jetEnd = nearJets.end(); |
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it != jetEnd; it++ ) { |
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float ptDiff = fabs(photon.momentum.Et() - it->momentum.Et()); |
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if ( ptDiff < minPtDifferenz ) { |
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minPtDifferenz = ptDiff; |
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pt = it->momentum.Et(); |
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} |
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} |
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|
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// testing |
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if( nearJets.size() > 1 ) |
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std::cout << "There are several jets matching to this photon. " |
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<< "Please check if the upper assumtion is reasonable" << std::endl; |
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return pt; |
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} |
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void TreeWriter::Loop() { |
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// only for testing |
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bool skim = true; |
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// here the event loop is implemented and the tree is filled |
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if (inputTree == 0) return; |
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tree->Branch("met", &met, "met/F"); |
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tree->Branch("nVertex", &nVertex, "nVertex/I"); |
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tree->Branch("weigth", &weight, "weight/F"); |
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tree->Branch("photonPt", &leadingPhotonPt, "photonPt/F"); |
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tree->Branch("nElectron", &nElectron, "nElectron/I"); |
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for (long jentry=0; jentry < processNEvents; jentry++) { |
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if (jentry%reportEvery==0) |
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if ( loggingVerbosity>0 && jentry%reportEvery==0 ) |
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std::cout << jentry << " / " << processNEvents << std :: endl; |
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inputTree->GetEntry(jentry); |
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std::map<TString, std::vector<susy::Photon> >::iterator phoMap = event->photons.find("photons"); |
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for(std::vector<susy::Photon>::iterator it = phoMap->second.begin(); |
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it != phoMap->second.end() && phoMap != event->photons.end(); it++ ) { |
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if( ! it->isEB() ) |
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if( ! it->isEB() && skim ) |
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continue; |
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thisphoton->pt = it->momentum.Et(); |
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if( thisphoton->pt < 80 ) |
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thisphoton->pt = getPtFromMatchedJet( *it, *event ); |
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if( thisphoton->pt < 80 && skim ) |
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continue; |
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thisphoton->eta = it->momentum.Eta(); |
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thisphoton->phi = it->momentum.Phi(); |
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thisphoton->chargedIso = it->chargedHadronIso; |
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thisphoton->neutralIso = it->neutralHadronIso; |
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thisphoton->photonIso = it->photonIso; |
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if ( it->r9 > 1 ) // if == 1 ? |
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if ( it->r9 > 1 && skim ) // if == 1 ? |
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continue; |
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thisphoton->r9 = it->r9; |
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thisphoton->sigmaIetaIeta = it->sigmaIetaIeta; |
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thisphoton->pixelseed = it->nPixelSeeds; |
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photon.push_back( *thisphoton ); |
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} |
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if( photon.size() == 0 ) |
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if( photon.size() == 0 && skim ) |
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continue; |
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std::sort( photon.begin(), photon.end(), tree::EtGreater); |
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//leadingPhotonPt = photon.at(0)->pt; |
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// jets |
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std::map<TString,susy::PFJetCollection>::iterator pfJets_it = event->pfJets.find("ak5"); |
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float scale = s_it->second; |
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TLorentzVector corrP4 = scale * it->momentum; |
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if(std::abs(corrP4.Eta()) > 3.0) continue; |
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if(std::abs(corrP4.Eta()) > 3.0 && skim ) continue; |
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thisjet->pt = corrP4.Et(); |
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thisjet->eta = corrP4.Eta(); |
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thisjet->phi = corrP4.Phi(); |
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jet.push_back( *thisjet ); |
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}// for jet |
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}// if, else |
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if( jet.size() == 0 ) |
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std::cout << "error, no jets found " << std::endl; |
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else |
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std::sort( jet.begin(), jet.end(), tree::EtGreater); |
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if( jet.size() < 2 && skim ) |
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continue; |
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std::sort( jet.begin(), jet.end(), tree::EtGreater); |
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// met |
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std::map<TString, susy::MET>::iterator met_it = event->metMap.find("pfMet"); |
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susy::MET* metobj = &(met_it->second); |
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met = metobj->met(); |
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// electrons |
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std::vector<susy::Electron> eVector = event->electrons["gsfElectrons"]; |
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nElectron = eVector.size(); |
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// vertices |
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nVertex = event->vertices.size(); |
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weight = 1; |
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// bjets |
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tree->Fill(); |
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} // for jentry |
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} |
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int main(int argc, char** argv) { |
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TreeWriter *tw = new TreeWriter("qcd-1000-nTuple-test.root", "myQCDTree.root"); |
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tw->SetProcessNEvents(10); |
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TreeWriter *tw = new TreeWriter("../root-files/susyEvents_qcd_1000-inf_part.root", "myTree.root"); |
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tw->SetProcessNEvents(-1); |
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tw->Loop(); |
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} |
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