#include <PatTriggerAnalyzer.h>

Inheritance diagram for PatTriggerAnalyzer:

Public Member Functions
	PatTriggerAnalyzer (const edm::ParameterSet &iConfig)
	default constructor
	~PatTriggerAnalyzer ()
	default destructor
Private Member Functions
virtual void	analyze (const edm::Event &iEvent, const edm::EventSetup &iSetup)
	everythin that needs to be done during the event loop
virtual void	beginJob ()
	everythin that needs to be done before the event loop
virtual void	endJob ()
	everythin that needs to be done after the event loop
Private Attributes
std::map< std::string, TH1D * >	histos1D_
	histogram management
std::map< std::string, TH2D * >	histos2D_
unsigned	maxID_
	maximal id for meanPt plot
unsigned	minID_
	minimal id for meanPt plot
std::string	muonMatch_
	input for trigger match objects
edm::InputTag	muons_
	input for muons
std::map< unsigned, unsigned >	sumN_
	internals for meanPt histogram calculation
std::map< unsigned, double >	sumPt_
edm::InputTag	trigger_
	input for patTrigger
edm::InputTag	triggerEvent_
	input for patTriggerEvent

Detailed Description

Definition at line 19 of file PatTriggerAnalyzer.h.

Constructor & Destructor Documentation

PatTriggerAnalyzer::PatTriggerAnalyzer ( const edm::ParameterSet & iConfig ) [explicit]

default constructor

Definition at line 11 of file PatTriggerAnalyzer.cc.

                                                                        :
  // pat::Trigger
  trigger_( iConfig.getParameter< edm::InputTag >( "trigger" ) ),
  // pat::TriggerEvent
  triggerEvent_( iConfig.getParameter< edm::InputTag >( "triggerEvent" ) ),
  // muon input collection
  muons_( iConfig.getParameter< edm::InputTag >( "muons" ) ),
  // muon match objects
  muonMatch_( iConfig.getParameter< std::string >( "muonMatch" ) ),
  // minimal id for of all trigger objects
  minID_( iConfig.getParameter< unsigned >( "minID" ) ),
  // maximal id for of all trigger objects
  maxID_( iConfig.getParameter< unsigned >( "maxID" ) ),
  histos1D_(), histos2D_()
{
}

PatTriggerAnalyzer::~PatTriggerAnalyzer ( )

default destructor

Definition at line 28 of file PatTriggerAnalyzer.cc.

{
}

Member Function Documentation

void PatTriggerAnalyzer::analyze	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)		`[private, virtual]`

everythin that needs to be done during the event loop

Implements edm::EDAnalyzer.

Definition at line 64 of file PatTriggerAnalyzer.cc.

References edm::Event::getByLabel(), histos1D_, histos2D_, maxID_, minID_, muonMatch_, patZpeak::muons, muons_, sumN_, sumPt_, triggerEvent_, and trigger::TriggerMuon.

{
  // PAT trigger event
  edm::Handle< TriggerEvent > triggerEvent;
  iEvent.getByLabel( triggerEvent_, triggerEvent );

  // PAT object collection
  edm::Handle< MuonCollection > muons;
  iEvent.getByLabel( muons_, muons );

  // PAT trigger helper for trigger matching information
  const helper::TriggerMatchHelper matchHelper;

  /*
    kinematics comparison
  */

  // loop over muon references (PAT muons have been used in the matcher in task 3)
  for( size_t iMuon = 0; iMuon < muons->size(); ++iMuon ) {
    // we need all these ingedients to recieve matched trigger objects from the matchHelper
    const TriggerObjectRef trigRef( matchHelper.triggerMatchObject( muons, iMuon, muonMatch_, iEvent, *triggerEvent ) );
    // finally we can fill the histograms
    if ( trigRef.isAvailable() && trigRef.isNonnull() ) { // check references (necessary!)
      histos2D_[ "ptTrigCand" ]->Fill( muons->at( iMuon ).pt(), trigRef->pt() );
      histos2D_[ "etaTrigCand" ]->Fill( muons->at( iMuon ).eta(), trigRef->eta() );
      histos2D_[ "phiTrigCand" ]->Fill( muons->at( iMuon ).phi(), trigRef->phi() );
    }
  }

  /*
    turn-on curve
  */

  // get the trigger objects corresponding to the used matching (HLT muons)
  const TriggerObjectRefVector trigRefs( triggerEvent->objects( trigger::TriggerMuon ) );
  // loop over selected trigger objects
  for ( TriggerObjectRefVector::const_iterator iTrig = trigRefs.begin(); iTrig != trigRefs.end(); ++iTrig ) {
    // get all matched candidates for the trigger object
    const reco::CandidateBaseRefVector candRefs( matchHelper.triggerMatchCandidates( ( *iTrig ), muonMatch_, iEvent, *triggerEvent ) );
    if ( candRefs.empty() ) continue;
    // fill the histogram...
    // (only for the first match, since we resolved ambiguities in the matching configuration,
    // so that we have one at maximum per trigger object)
    reco::CandidateBaseRef muonRef( candRefs.at( 0 ) );
    if ( muonRef.isAvailable() && muonRef.isNonnull() ) {
      histos1D_[ "turnOn" ]->Fill( muonRef->pt() );
    }
  }

  /*
    mean pt
  */

  // loop over all trigger match objects from minID to maxID; have
  // a look to DataFormats/HLTReco/interface/TriggerTypeDefs.h to
  // know more about the available trrigger object id's
  for ( unsigned id=minID_; id<=maxID_; ++id ) {
    // vector of all objects for a given object id
    const TriggerObjectRefVector objRefs( triggerEvent->objects( id ) );
    // buffer the number of objects
    sumN_[ id ] += objRefs.size();
    // iterate the objects and buffer the pt of the objects
    for ( TriggerObjectRefVector::const_iterator iRef = objRefs.begin(); iRef != objRefs.end(); ++iRef ) {
      sumPt_[ id ] += ( *iRef )->pt();
    }
  }
}

void PatTriggerAnalyzer::beginJob ( void ) [private, virtual]

everythin that needs to be done before the event loop

Reimplemented from edm::EDAnalyzer.

Definition at line 32 of file PatTriggerAnalyzer.cc.

References fileService, histos1D_, histos2D_, maxID_, minID_, Pi, sumN_, and sumPt_.

{
  edm::Service< TFileService > fileService;

  // pt correlation plot
  histos2D_[ "ptTrigCand" ] = fileService->make< TH2D >( "ptTrigCand", "Object vs. candidate p_{T} (GeV)", 60, 0., 300., 60, 0., 300. );
  histos2D_[ "ptTrigCand" ]->SetXTitle( "candidate p_{T} (GeV)" );
  histos2D_[ "ptTrigCand" ]->SetYTitle( "object p_{T} (GeV)" );
  // eta correlation plot
  histos2D_[ "etaTrigCand" ] = fileService->make< TH2D >( "etaTrigCand", "Object vs. candidate #eta", 50, -2.5, 2.5, 50, -2.5, 2.5 );
  histos2D_[ "etaTrigCand" ]->SetXTitle( "candidate #eta" );
  histos2D_[ "etaTrigCand" ]->SetYTitle( "object #eta" );
  // phi correlation plot
  histos2D_[ "phiTrigCand" ] = fileService->make< TH2D >( "phiTrigCand", "Object vs. candidate #phi", 60, -TMath::Pi(), TMath::Pi(), 60, -TMath::Pi(), TMath::Pi() );
  histos2D_[ "phiTrigCand" ]->SetXTitle( "candidate #phi" );
  histos2D_[ "phiTrigCand" ]->SetYTitle( "object #phi" );
  // turn-on curves
  histos1D_[ "turnOn" ] = fileService->make< TH1D >( "turnOn", "p_{T} (GeV) of matched candidate", 10, 0., 50.);
  histos1D_[ "turnOn" ]->SetXTitle( "candidate p_{T} (GeV)" );
  histos1D_[ "turnOn" ]->SetYTitle( "# of objects" );
  // mean pt for all trigger objects
  histos1D_[ "ptMean" ] = fileService->make< TH1D >( "ptMean", "Mean p_{T} (GeV) per trigger object type", maxID_ - minID_ + 1, minID_ - 0.5, maxID_ + 0.5);
  histos1D_[ "ptMean" ]->SetXTitle( "trigger object type" );
  histos1D_[ "ptMean" ]->SetYTitle( "mean p_{T} (GeV)" );

  // initialize counters for mean pt calculation
  for( unsigned id = minID_; id <= maxID_; ++id ){
    sumN_ [ id ] = 0;
    sumPt_[ id ] = 0.;
  }
}

void PatTriggerAnalyzer::endJob ( void ) [private, virtual]

everythin that needs to be done after the event loop

Reimplemented from edm::EDAnalyzer.

Definition at line 132 of file PatTriggerAnalyzer.cc.

References histos1D_, maxID_, minID_, sumN_, and sumPt_.

{
  // normalize the entries for the mean pt plot
  for(unsigned id=minID_; id<=maxID_; ++id){
    if( sumN_[ id ]!=0 ) histos1D_[ "ptMean" ]->Fill( id, sumPt_[ id ]/sumN_[ id ] );
  }
}