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bendavid |
1.1 |
// $Id$
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#include "MitProd/TreeFiller/interface/FillMuons.h"
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#include "FWCore/MessageLogger/interface/MessageLogger.h"
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#include "FWCore/Framework/interface/ESHandle.h"
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#include "DataFormats/Common/interface/Handle.h"
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#include "FWCore/ServiceRegistry/interface/Service.h"
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#include "SimDataFormats/HepMCProduct/interface/HepMCProduct.h"
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#include "DataFormats/MuonReco/interface/MuonFwd.h"
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#include "DataFormats/MuonReco/interface/Muon.h"
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#include "DataFormats/TrackReco/interface/Track.h"
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#include "MitAna/DataTree/interface/Particle.h"
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#include "MitAna/DataTree/interface/Names.h"
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#include "TLorentzVector.h"
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using namespace std;
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using namespace edm;
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using namespace mithep;
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//-------------------------------------------------------------------------------------------------
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FillMuons::FillMuons(const edm::ParameterSet &iConfig)
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: muonSource_(iConfig.getUntrackedParameter<string>("muonSource" , "muons")),
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muonBranch_(iConfig.getUntrackedParameter<string>("muonBrname", Names::gkMuonBrn))
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{
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muons_ = new mithep::Vector<mithep::Muon>();
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}
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//-------------------------------------------------------------------------------------------------
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FillMuons::~FillMuons()
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{
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cout << " Fillmuons done " <<endl;
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}
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//-------------------------------------------------------------------------------------------------
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void FillMuons::analyze(const edm::Event &theEvent,
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const edm::EventSetup &iSetup)
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{
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muons_->Reset();
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Handle<reco::MuonCollection> theMuonProduct;
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try {
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theEvent.getByLabel(muonSource_, theMuonProduct);
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} catch (cms::Exception& ex) {
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edm::LogError("FillMuons") << "Error! Can not get collection with label "
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<< muonSource_ << endl;
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throw edm::Exception(edm::errors::Configuration, "FillMuons:analyze()\n")
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<< "Error! Can not get collection with label " << muonSource_ << endl;
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}
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const reco::MuonCollection Muons = *(theMuonProduct.product());
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int nMuons = 0;
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for (reco::MuonCollection::const_iterator inMuon =
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Muons.begin();
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inMuon != Muons.end(); ++inMuon) {
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mithep::Muon* outMuon = new mithep::Muon(inMuon->px(),inMuon->py(),inMuon->pz(),inMuon->energy());
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//Fill muon track info using global (tracker+muon chambers) track fit if available, or standalone tracker or muon tracks otherwise
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const reco::Track* inMuonTrack = &*inMuon->combinedMuon().get();
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if (!inMuonTrack)
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inMuonTrack = &*inMuon->standAloneMuon().get();
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if (!inMuonTrack)
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inMuonTrack = &*inMuon->track().get();
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if (inMuonTrack) {
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outMuon->GetTrack()->SetHelix(inMuonTrack->phi(),inMuonTrack->d0(),inMuonTrack->pt(),inMuonTrack->dz(),inMuonTrack->theta());
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outMuon->GetTrack()->SetErrors(inMuonTrack->phiError(),inMuonTrack->d0Error(),inMuonTrack->ptError(),inMuonTrack->dzError(),inMuonTrack->thetaError());
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outMuon->GetTrack()->SetCharge(inMuonTrack->charge());
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}
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muons_->Add(outMuon);
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nMuons++;
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}
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}
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//-------------------------------------------------------------------------------------------------
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void FillMuons::beginJob(edm::EventSetup const &iEvent)
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{
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Service<TreeService> ts;
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TreeWriter *tws = ts->get();
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if(!tws) {
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throw edm::Exception(edm::errors::Configuration, "FillMuons::beginJob()\n")
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<< "Could not get pointer to Tree with name " << tws->GetName() << "\n";
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return;
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}
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tws->AddBranch(muonBranch_.c_str(),&muons_);
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}
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//-------------------------------------------------------------------------------------------------
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void FillMuons::endJob()
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{
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edm::LogInfo("FillMuons::endJob") << "Ending Job" << endl;
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}
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