SUSY_HLT_PhotonMET.cc

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#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Common/interface/TriggerNames.h"
#include "DataFormats/HLTReco/interface/TriggerObject.h"
#include "HLTriggerOffline/SUSYBSM/interface/SUSY_HLT_PhotonMET.h"


SUSY_HLT_PhotonMET::SUSY_HLT_PhotonMET(const edm::ParameterSet& ps)
{
  edm::LogInfo("SUSY_HLT_PhotonMET") << "Constructor SUSY_HLT_PhotonMET::SUSY_HLT_PhotonMET " << std::endl;
  // Get parameters from configuration file
  thePfMETCollection_ = consumes<reco::PFMETCollection>(ps.getParameter<edm::InputTag>("pfMETCollection"));
  thePhotonCollection_ = consumes<reco::PhotonCollection>(ps.getParameter<edm::InputTag>("photonCollection"));
  triggerResults_ = consumes<edm::TriggerResults>(ps.getParameter<edm::InputTag>("TriggerResults"));
  triggerPath_ = ps.getParameter<std::string>("TriggerPath");
  triggerPathBase_ = ps.getParameter<std::string>("TriggerPathBase");
  ptThrOffline_ = ps.getUntrackedParameter<double>("ptThrOffline");
  metThrOffline_ = ps.getUntrackedParameter<double>("metThrOffline");
}

SUSY_HLT_PhotonMET::~SUSY_HLT_PhotonMET()
{
  edm::LogInfo("SUSY_HLT_PhotonMET") << "Destructor SUSY_HLT_PhotonMET::~SUSY_HLT_PhotonMET " << std::endl;
}

void SUSY_HLT_PhotonMET::dqmBeginRun(edm::Run const &, edm::EventSetup const &)
{
  edm::LogInfo("SUSY_HLT_PhotonMET") << "SUSY_HLT_PhotonMET::beginRun" << std::endl;
}

void SUSY_HLT_PhotonMET::bookHistograms(DQMStore::IBooker & ibooker_, edm::Run const &, edm::EventSetup const &)
{
  edm::LogInfo("SUSY_HLT_PhotonMET") << "SUSY_HLT_PhotonMET::bookHistograms" << std::endl;
  //book at beginRun
  bookHistos(ibooker_);
}


void SUSY_HLT_PhotonMET::analyze(edm::Event const& e, edm::EventSetup const& eSetup)
{
  edm::LogInfo("SUSY_HLT_PhotonMET") << "SUSY_HLT_PhotonMET::analyze" << std::endl;

  //-------------------------------
  //--- MET
  //-------------------------------
  edm::Handle<reco::PFMETCollection> pfMETCollection;
  e.getByToken(thePfMETCollection_, pfMETCollection);
  if ( !pfMETCollection.isValid() ){
    edm::LogError ("SUSY_HLT_PhotonMET") << "invalid met collection" << "\n";
    return;
  }
  //-------------------------------
  //--- Photon
  //-------------------------------
  edm::Handle<reco::PhotonCollection> photonCollection;
  e.getByToken (thePhotonCollection_, photonCollection);
  if ( !photonCollection.isValid() ){
    edm::LogError ("SUSY_HLT_PhotonMET") << "invalid egamma collection" << "\n";
    return;
  }

  //check what is in the menu
  edm::Handle<edm::TriggerResults> hltresults;
  e.getByToken(triggerResults_,hltresults);
  if(!hltresults.isValid()){
    edm::LogError ("SUSY_HLT_PhotonMET") << "invalid collection: TriggerResults" << "\n";
    return;
  }

  // use only events with leading photon in barrel
  if (photonCollection->empty() || abs(photonCollection->begin()->superCluster()->eta()) > 1.4442) return;

  // get reco photon and met
  float const recoPhotonPt = !photonCollection->empty() ? photonCollection->begin()->et() : 0;
  float const recoMET = !pfMETCollection->empty() ? pfMETCollection->begin()->et() : 0;
  h_recoPhotonPt->Fill(recoPhotonPt);
  h_recoMet->Fill(recoMET);

  // the actual trigger efficiencies
  bool hasFired = false, hasFiredBaseTrigger=false;
  edm::TriggerNames const &trigNames = e.triggerNames(*hltresults);
  unsigned int const numTriggers = trigNames.size();
  for( unsigned int hltIndex=0; hltIndex<numTriggers; ++hltIndex ){
    if (trigNames.triggerName(hltIndex).find(triggerPath_) != std::string::npos && hltresults->wasrun(hltIndex) && hltresults->accept(hltIndex)) hasFired = true;
    if (trigNames.triggerName(hltIndex).find(triggerPathBase_) != std::string::npos && hltresults->wasrun(hltIndex) && hltresults->accept(hltIndex)) hasFiredBaseTrigger = true;
  }

  if(hasFiredBaseTrigger || !e.isRealData()) {
    // passed base trigger
    if (recoPhotonPt>ptThrOffline_) h_metTurnOn_den->Fill(recoMET);
    if (recoMET>metThrOffline_) h_photonTurnOn_den->Fill(recoPhotonPt);
    if (hasFired){
      // passed base and signal trigger
      if (recoPhotonPt>ptThrOffline_) h_metTurnOn_num->Fill(recoMET);
      if (recoMET>metThrOffline_) h_photonTurnOn_num->Fill(recoPhotonPt);
    }
  }
}



void SUSY_HLT_PhotonMET::endRun(edm::Run const& run, edm::EventSetup const& eSetup)
{
  edm::LogInfo("SUSY_HLT_PhotonMET") << "SUSY_HLT_PhotonMET::endRun" << std::endl;
}

void SUSY_HLT_PhotonMET::bookHistos(DQMStore::IBooker & ibooker_)
{
  ibooker_.cd();
  ibooker_.setCurrentFolder("HLT/SUSYBSM/" + triggerPath_);

  //offline quantities
  h_recoPhotonPt = ibooker_.book1D("recoPhotonPt", "reco Photon transverse momentum; p_{T} (GeV)", 20, 0, 1000);
  h_recoMet = ibooker_.book1D("recoMet", "reco Missing transverse energy;E_{T}^{miss} (GeV)", 20, 0, 1000);
  h_metTurnOn_num = ibooker_.book1D("pfMetTurnOn_num", "PF MET Turn On Numerator",   20, 0, 500);
  h_metTurnOn_den = ibooker_.book1D("pfMetTurnOn_den", "PF MET Turn On Denominator", 20, 0, 500);
  h_photonTurnOn_num = ibooker_.book1D("photonTurnOn_num", "Photon Turn On Numerator",   20, 0, 1000);
  h_photonTurnOn_den = ibooker_.book1D("photonTurnOn_den", "Photon Turn On Denominator", 20, 0, 1000);

  ibooker_.cd();
}

//define this as a plug-in
DEFINE_FWK_MODULE(SUSY_HLT_PhotonMET);