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#include "OSUT3Analysis/AnaTools/interface/OSUAnalysis.h"
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OSUAnalysis::OSUAnalysis (const edm::ParameterSet &cfg) :
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// Retrieve parameters from the configuration file.
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muons_ (cfg.getParameter<edm::InputTag> ("muons")),
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muonCfg_ (cfg.getParameter<edm::ParameterSet> ("muonCfg"))
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{
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// Construct CutFlow objects. These store the results of cut decisions and
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// handle filling cut flow histograms.
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cuts_ = new CutFlow (hists1D_, fs_);
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muonCuts_ = new CutFlow (hists1D_, fs_, "muon");
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// Create additional histograms.
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TH1::SetDefaultSumw2 ();
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hists1D_["muonPhi"] = fs_->make<TH1D> ("muonPhi", ";#phi", 100, -5.0, 5.0);
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hists1D_["muonEta"] = fs_->make<TH1D> ("muonEta", ";#eta", 100, -3.0, 3.0);
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hists1D_["muonPt"] = fs_->make<TH1D> ("muonPt", ";p_{T} (GeV/c)", 100, 0.0, 300.0);
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hists1D_["dimuonMass"] = fs_->make<TH1D> ("dimuonMass", ";m_{#mu^{+} #mu^{-}} (GeV/c^{2})", 90, 30.0, 120.0);
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}
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OSUAnalysis::~OSUAnalysis ()
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{
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// Destroying the CutFlow objects causes the cut flow numbers and time
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// information to be printed to standard output.
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delete cuts_;
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delete muonCuts_;
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}
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void
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OSUAnalysis::analyze (const edm::Event &event, const edm::EventSetup &setup)
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{
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// Retrieve necessary collections from the event.
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edm::Handle<BNmuonCollection> muons;
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event.getByLabel (muons_, muons);
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// Perform selection on objects within the event while filling the cut flow
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// object specific to this collection.
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GoodMuonCollection goodMuons (muonCfg_, muons, muonCuts_);
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// Calculate cut decisions and store the results in the CutFlow object, just
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// like a map.
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cuts_->at ("maxEta") = goodMuons.goodEtaSize () > 1;
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cuts_->at ("minPt") = goodMuons.goodPtSize () > 1;
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cuts_->at ("oppositeSign") = goodMuons.goodSize () > 1 && goodMuons.leadMuon ()->charge * goodMuons.nextToLeadMuon ()->charge < 0;
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// This causes the cut flow histograms to be filled.
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cuts_->fillCutFlow ();
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// Fill additional histograms while applying desired cuts.
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if (cuts_->at ("oppositeSign"))
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{
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for (GoodMuonCollection::const_iterator goodMuon = goodMuons.begin (); goodMuon != goodMuons.end (); goodMuon++)
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{
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if (goodMuon->pass ("minPt"))
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hists1D_["muonEta"]->Fill (goodMuon->eta);
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if (goodMuon->pass ("maxEta"))
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hists1D_["muonPt"]->Fill (goodMuon->pt);
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if (goodMuon->pass ())
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hists1D_["muonPhi"]->Fill (goodMuon->phi);
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}
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hists1D_["dimuonMass"]->Fill (goodMuons.dimuonMass ());
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}
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}
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DEFINE_FWK_MODULE(OSUAnalysis);
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