ExampleMuonAnalyzer Class Reference

#include <MuonAnalyzer.h>

Inheritance diagram for ExampleMuonAnalyzer:

Public Member Functions
void	analyze (const edm::Event &event, const edm::EventSetup &eventSetup) override
void	beginJob () override
void	endJob () override
	ExampleMuonAnalyzer (const edm::ParameterSet &pset)
	Constructor. More...
	~ExampleMuonAnalyzer () override
	Destructor. More...
Public Member Functions inherited from edm::EDAnalyzer
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)
	EDAnalyzer ()
SerialTaskQueue *	globalLuminosityBlocksQueue ()
SerialTaskQueue *	globalRunsQueue ()
ModuleDescription const &	moduleDescription () const
std::string	workerType () const
	~EDAnalyzer () override
Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const
void	convertCurrentProcessAlias (std::string const &processName)
	Convert "@currentProcess" in InputTag process names to the actual current process name. More...
	EDConsumerBase ()
	EDConsumerBase (EDConsumerBase &&)=default
	EDConsumerBase (EDConsumerBase const &)=delete
ESProxyIndex const *	esGetTokenIndices (edm::Transition iTrans) const
ProductResolverIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const
void	itemsMayGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const
void	itemsToGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const
std::vector< ProductResolverIndexAndSkipBit > const &	itemsToGetFrom (BranchType iType) const
void	labelsForToken (EDGetToken iToken, Labels &oLabels) const
void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const
EDConsumerBase &	operator= (EDConsumerBase &&)=default
EDConsumerBase const &	operator= (EDConsumerBase const &)=delete
bool	registeredToConsume (ProductResolverIndex, bool, BranchType) const
bool	registeredToConsumeMany (TypeID const &, BranchType) const
ProductResolverIndexAndSkipBit	uncheckedIndexFrom (EDGetToken) const
void	updateLookup (BranchType iBranchType, ProductResolverIndexHelper const &, bool iPrefetchMayGet)
void	updateLookup (eventsetup::ESRecordsToProxyIndices const &)
virtual	~EDConsumerBase () noexcept(false)

Private Attributes
TH1F *	h4MuInvMass
TH1I *	hChamberMatched
TH1F *	hEHcal
TH1F *	hMuCaloCompatibility
TH1I *	hMuIdAlgo
TH1F *	hMuIso03CaloComb
TH1F *	hMuIso03SumPt
TH1I *	hMuonType
TH1F *	hMuSegCompatibility
TH1I *	hNMuons
TH1F *	hPtRec
TH2F *	hPtReso
TH1F *	hPtSTATKDiff
edm::EDGetTokenT< pat::MuonCollection >	theMuonToken

Additional Inherited Members
Public Types inherited from edm::EDAnalyzer
typedef EDAnalyzer	ModuleType
Public Types inherited from edm::EDConsumerBase
typedef ProductLabels	Labels
Static Public Member Functions inherited from edm::EDAnalyzer
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &)
static bool	wantsGlobalLuminosityBlocks ()
static bool	wantsGlobalRuns ()
static bool	wantsStreamLuminosityBlocks ()
static bool	wantsStreamRuns ()
Protected Member Functions inherited from edm::EDConsumerBase
EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)
template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)
ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...
template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()
void	consumesMany (const TypeToGet &id)
template<BranchType B>
void	consumesMany (const TypeToGet &id)
template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes ()
template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes (ESInputTag const &tag)
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)

Detailed Description

Analyzer of the muon objects

Author

R. Bellan - CERN ricca.nosp@m.rdo..nosp@m.bella.nosp@m.n@ce.nosp@m.rn.ch

Definition at line 25 of file MuonAnalyzer.h.

Constructor & Destructor Documentation

ExampleMuonAnalyzer()

ExampleMuonAnalyzer::ExampleMuonAnalyzer

(

const edm::ParameterSet &

pset

)

Constructor.

Definition at line 27 of file MuonAnalyzer.cc.

                                                                 {
  theMuonToken = consumes<pat::MuonCollection>(pset.getParameter<InputTag>("MuonCollection"));
}

References muonDTDigis_cfi::pset.

~ExampleMuonAnalyzer()

ExampleMuonAnalyzer::~ExampleMuonAnalyzer ( )

override

Destructor.

Definition at line 32 of file MuonAnalyzer.cc.

{}

Member Function Documentation

analyze()

void ExampleMuonAnalyzer::analyze ( const edm::Event &  event, const edm::EventSetup &  eventSetup  )

overridevirtual

simple selection... Do not want to write here my super-secret Higgs analysis ;-)

Implements edm::EDAnalyzer.

Definition at line 62 of file MuonAnalyzer.cc.

                                                                                  {
  // Get the Muon collection
  Handle<pat::MuonCollection> muons;
  event.getByToken(theMuonToken, muons);
 
  // How many muons in the event?
  hNMuons->Fill(muons->size());
 
  pat::MuonCollection selectedMuons;
 
  // Let's look inside the muon collection.
  for (pat::MuonCollection::const_iterator muon = muons->begin(); muon != muons->end(); ++muon) {
    // pT spectra of muons
    hPtRec->Fill(muon->pt());
 
    // what is the resolution in pt? Easy! We have the association with generated information
    //    cout<<muon->pt()<<" "<<muon->genParticle()->pt()<<endl;
    if (muon->genLepton() != nullptr) {
      double reso = (muon->pt() - muon->genLepton()->pt()) / muon->genLepton()->pt();
      hPtReso->Fill(muon->genLepton()->pt(), reso);
    }
 
    // What is the energy deposit in HCal?
    if (muon->isEnergyValid())
      hEHcal->Fill(muon->calEnergy().had);
 
    // Which type of muons in the collection?
    if (muon->isStandAloneMuon())
      if (muon->isGlobalMuon())
        if (muon->isTrackerMuon())
          hMuonType->Fill(1);  // STA + GLB + TM
        else
          hMuonType->Fill(2);  // STA + GLB
      else if (muon->isTrackerMuon())
        hMuonType->Fill(3);  // STA + TM
      else
        hMuonType->Fill(5);  // STA
    else if (muon->isTrackerMuon())
      hMuonType->Fill(4);  // TM
 
    // ...mmm I want to study the relative resolution of the STA track with respect to the Tracker track.
    // or I want to look at a track stab
    if (muon->isGlobalMuon()) {
      double diff = muon->innerTrack()->pt() - muon->standAloneMuon()->pt();
      hPtSTATKDiff->Fill(diff);
    }
 
    // Muon ID quantities
 
    // Muon in CMS are usually MIP. What is the compatibility of a muon HP using only claorimeters?
    if (muon->isCaloCompatibilityValid())
      hMuCaloCompatibility->Fill(muon->caloCompatibility());
 
    // The muon system can also be used just as only for ID. What is the compatibility of a muon HP using only calorimeters?
    hMuSegCompatibility->Fill(muon::segmentCompatibility(*muon));
 
    // How many chambers have been associated to a muon track?
    hChamberMatched->Fill(muon->numberOfChambers());
    // If you look at MuonSegmentMatcher class you will see a lot of interesting quantities to look at!
    // you can get the list of matched info using matches()
 
    // Muon ID selection. As described in AN-2008/098
    if (muon::isGoodMuon(*muon, muon::All))  // dummy options - always true
      hMuIdAlgo->Fill(0);
    if (muon::isGoodMuon(*muon, muon::AllStandAloneMuons))  // checks isStandAloneMuon flag
      hMuIdAlgo->Fill(1);
    if (muon::isGoodMuon(*muon, muon::AllTrackerMuons))  // checks isTrackerMuon flag
      hMuIdAlgo->Fill(2);
    if (muon::isGoodMuon(*muon, muon::TrackerMuonArbitrated))  // resolve ambiguity of sharing segments
      hMuIdAlgo->Fill(3);
    if (muon::isGoodMuon(*muon, muon::AllArbitrated))  // all muons with the tracker muon arbitrated
      hMuIdAlgo->Fill(4);
    if (muon::isGoodMuon(*muon, muon::GlobalMuonPromptTight))  // global muons with tighter fit requirements
      hMuIdAlgo->Fill(5);
    if (muon::isGoodMuon(*muon, muon::TMLastStationLoose))  // penetration depth loose selector
      hMuIdAlgo->Fill(6);
    if (muon::isGoodMuon(*muon, muon::TMLastStationTight))  // penetration depth tight selector
      hMuIdAlgo->Fill(7);
    if (muon::isGoodMuon(*muon, muon::TM2DCompatibilityLoose))  // likelihood based loose selector
      hMuIdAlgo->Fill(8);
    if (muon::isGoodMuon(*muon, muon::TM2DCompatibilityTight))  // likelihood based tight selector
      hMuIdAlgo->Fill(9);
    if (muon::isGoodMuon(*muon, muon::TMOneStationLoose))  // require one well matched segment
      hMuIdAlgo->Fill(10);
    if (muon::isGoodMuon(*muon, muon::TMOneStationTight))  // require one well matched segment
      hMuIdAlgo->Fill(11);
    if (muon::isGoodMuon(*muon,
                         muon::TMLastStationOptimizedLowPtLoose))  // combination of TMLastStation and TMOneStation
      hMuIdAlgo->Fill(12);
    if (muon::isGoodMuon(*muon,
                         muon::TMLastStationOptimizedLowPtTight))  // combination of TMLastStation and TMOneStation
      hMuIdAlgo->Fill(13);
 
    // Isolation variables. There are many type of isolation. You can even build your own combining the output of
    // muon->isolationR03(). E.g.: 1.2*muon->isolationR03().emEt + 0.8*muon->isolationR03().hadEt
    // *** WARNING *** it is just an EXAMPLE!
    if (muon->isIsolationValid()) {
      hMuIso03CaloComb->Fill(1.2 * muon->isolationR03().emEt + 0.8 * muon->isolationR03().hadEt);
      hMuIso03SumPt->Fill(muon->isolationR03().sumPt);
    }
 
    // OK, let see if we understood everything.
    // Suppose we are searching for H->ZZ->4mu.
    // In mean the 4 muons have/are:
    // high pt (but 1 out of 4 can be at quite low pt)
    // isolated
    // so, we can make some requirements
    if (muon->isolationR03().sumPt < 0.2) {
      if (muon->isGlobalMuon() || muon::isGoodMuon(*muon, muon::TM2DCompatibilityLoose) ||
          muon::isGoodMuon(*muon, muon::TMLastStationLoose))
        selectedMuons.push_back(*muon);
    }
  }
 
  if (selectedMuons.size() == 4) {
    reco::Candidate::LorentzVector p4CM;
    for (pat::MuonCollection::const_iterator muon = selectedMuons.begin(); muon != selectedMuons.end(); ++muon) {
      p4CM = p4CM + muon->p4();
    }
    h4MuInvMass->Fill(p4CM.mass());
  }
}

References muon::All, muon::AllArbitrated, muon::AllStandAloneMuons, muon::AllTrackerMuons, change_name::diff, muon::GlobalMuonPromptTight, muon::isGoodMuon(), HLT_2018_cff::muon, PDWG_BPHSkim_cff::muons, muon::segmentCompatibility(), METSignificanceObjects_cfi::selectedMuons, muon::TM2DCompatibilityLoose, muon::TM2DCompatibilityTight, muon::TMLastStationLoose, muon::TMLastStationOptimizedLowPtLoose, muon::TMLastStationOptimizedLowPtTight, muon::TMLastStationTight, muon::TMOneStationLoose, muon::TMOneStationTight, and muon::TrackerMuonArbitrated.

beginJob()

void ExampleMuonAnalyzer::beginJob ( void  )

overridevirtual

Reimplemented from edm::EDAnalyzer.

Definition at line 34 of file MuonAnalyzer.cc.

                                   {
  // Book histograms
  edm::Service<TFileService> fileService;
  hPtRec = fileService->make<TH1F>("pT", "p_{T}^{rec}", 250, 0, 120);
  hPtReso = fileService->make<TH2F>("pT_Reso", "(p_{T}^{rec}-p_{T}^{sim})/p_{T}^{sim}", 250, 0, 120, 100, -0.2, 0.2);
  hNMuons = fileService->make<TH1I>("NMuons", "Number of muons per event", 20, 0, 20);
 
  hEHcal = fileService->make<TH1F>("EHCal", "Energy deposit in HCAL", 100, 0, 10);
 
  // ID
  hMuonType = fileService->make<TH1I>("MuonType", "Type of Muons", 5, 1, 6);
  hPtSTATKDiff = fileService->make<TH1F>("DiffPt_STA_TK", "p^{TK}_{T}-p^{STA}_T", 200, -50, 50);
  hMuCaloCompatibility = fileService->make<TH1F>("CaloCompatibility", "Muon HP using Calorimeters only", 100, 0, 1);
  hMuSegCompatibility = fileService->make<TH1F>("SegmentCompatibility", "Muon HP using segments only", 100, 0, 1);
  hChamberMatched = fileService->make<TH1I>("NumMatchedChamber", "Number of matched chambers", 7, 0, 7);
  hMuIdAlgo = fileService->make<TH1I>("MuonIDSelectors", "Results of muon id selectors", 13, 0, 13);
 
  // Isolation
  hMuIso03SumPt = fileService->make<TH1F>("MuIso03SumPt", "Isolation #Delta(R)=0.3: SumPt", 200, 0, 10);
  hMuIso03CaloComb =
      fileService->make<TH1F>("MuIso03CaloComb", "Isolation #Delta(R)=0.3: 1.2*ECAL+0.8HCAL", 200, 0, 10);
 
  // 4Mu invariant mass
  h4MuInvMass = fileService->make<TH1F>("InvMass4MuSystem", "Invariant mass of the 4 muons system", 200, 0, 500);
}

References fileService, and TFileService::make().

endJob()

void ExampleMuonAnalyzer::endJob ( void  )

overridevirtual

Reimplemented from edm::EDAnalyzer.

Definition at line 60 of file MuonAnalyzer.cc.

{}

Member Data Documentation

h4MuInvMass

TH1F* ExampleMuonAnalyzer::h4MuInvMass

private

Definition at line 63 of file MuonAnalyzer.h.

hChamberMatched

TH1I* ExampleMuonAnalyzer::hChamberMatched

private

Definition at line 56 of file MuonAnalyzer.h.

hEHcal

TH1F* ExampleMuonAnalyzer::hEHcal

private

Definition at line 48 of file MuonAnalyzer.h.

hMuCaloCompatibility

TH1F* ExampleMuonAnalyzer::hMuCaloCompatibility

private

Definition at line 54 of file MuonAnalyzer.h.

hMuIdAlgo

TH1I* ExampleMuonAnalyzer::hMuIdAlgo

private

Definition at line 57 of file MuonAnalyzer.h.

hMuIso03CaloComb

TH1F* ExampleMuonAnalyzer::hMuIso03CaloComb

private

Definition at line 61 of file MuonAnalyzer.h.

hMuIso03SumPt

TH1F* ExampleMuonAnalyzer::hMuIso03SumPt

private

Definition at line 60 of file MuonAnalyzer.h.

hMuonType

TH1I* ExampleMuonAnalyzer::hMuonType

private

Definition at line 50 of file MuonAnalyzer.h.

hMuSegCompatibility

TH1F* ExampleMuonAnalyzer::hMuSegCompatibility

private

Definition at line 55 of file MuonAnalyzer.h.

hNMuons

TH1I* ExampleMuonAnalyzer::hNMuons

private

Definition at line 45 of file MuonAnalyzer.h.

hPtRec

TH1F* ExampleMuonAnalyzer::hPtRec

private

Definition at line 46 of file MuonAnalyzer.h.

hPtReso

TH2F* ExampleMuonAnalyzer::hPtReso

private

Definition at line 47 of file MuonAnalyzer.h.

hPtSTATKDiff

TH1F* ExampleMuonAnalyzer::hPtSTATKDiff

private

Definition at line 51 of file MuonAnalyzer.h.

theMuonToken

edm::EDGetTokenT<pat::MuonCollection> ExampleMuonAnalyzer::theMuonToken

private

Definition at line 42 of file MuonAnalyzer.h.