Inheritance diagram for ZMassHistogrammer:

Public Member Functions
	ZMassHistogrammer (const edm::ParameterSet &pset)

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 Member Functions
void	analyze (const edm::Event &event, const edm::EventSetup &setup) override

Private Attributes
edm::EDGetTokenT< reco::CandidateView >	genToken_

TH1F *	h_mZ_

TH1F *	h_mZMC_

edm::EDGetTokenT< reco::CandidateView >	zToken_

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

Definition at line 7 of file ZMassHistogrammer.cc.

Constructor & Destructor Documentation

◆ ZMassHistogrammer()

ZMassHistogrammer::ZMassHistogrammer ( const edm::ParameterSet & pset )

Definition at line 31 of file ZMassHistogrammer.cc.

     : zToken_(consumes<reco::CandidateView>(pset.getParameter<InputTag>("z"))),
       genToken_(consumes<reco::CandidateView>(pset.getParameter<InputTag>("gen"))) {
   cout << ">>> Z Mass constructor" << endl;
   Service<TFileService> fs;
   h_mZ_ = fs->make<TH1F>("ZMass", "Z mass (GeV/c^{2})", 100, 0, 200);
   h_mZMC_ = fs->make<TH1F>("ZMCMass", "Z MC mass (GeV/c^{2})", 100, 0, 200);
 }

References gather_cfg::cout, h_mZ_, h_mZMC_, and TFileService::make().

Member Function Documentation

◆ analyze()

void ZMassHistogrammer::analyze	(	const edm::Event &	event,
		const edm::EventSetup &	setup
	)

overrideprivatevirtual

Implements edm::EDAnalyzer.

Definition at line 40 of file ZMassHistogrammer.cc.

                                                                                  {
   cout << ">>> Z Mass analyze" << endl;
   Handle<CandidateCollection> z;
   Handle<CandidateCollection> gen;
   event.getByToken(zToken_, z);
   event.getByToken(genToken_, gen);
   for (unsigned int i = 0; i < z->size(); ++i) {
     const Candidate& zCand = (*z)[i];
     h_mZ_->Fill(zCand.mass());
   }
   for (unsigned int i = 0; i < gen->size(); ++i) {
     const Candidate& genCand = (*gen)[i];
     if ((genCand.pdgId() == 23) && (genCand.status() == 2))  //this is an intermediate Z0
       cout << ">>> intermediate Z0 found, with " << genCand.numberOfDaughters() << " daughters" << endl;
     if ((genCand.pdgId() == 23) && (genCand.status() == 3)) {  //this is a Z0
       cout << ">>> Z0 found, with " << genCand.numberOfDaughters() << " daughters" << endl;
       h_mZMC_->Fill(genCand.mass());
       if (genCand.numberOfDaughters() == 3) {  //Z0 decays in mu+ mu-, the 3rd daughter is the same Z0
         const Candidate* dauGen0 = genCand.daughter(0);
         const Candidate* dauGen1 = genCand.daughter(1);
         const Candidate* dauGen2 = genCand.daughter(2);
         cout << ">>> daughter MC 0 PDG Id " << dauGen0->pdgId() << ", status " << dauGen0->status() << ", charge "
              << dauGen0->charge() << endl;
         cout << ">>> daughter MC 1 PDG Id " << dauGen1->pdgId() << ", status " << dauGen1->status() << ", charge "
              << dauGen1->charge() << endl;
         cout << ">>> daughter MC 2 PDG Id " << dauGen2->pdgId() << ", status " << dauGen2->status() << ", charge "
              << dauGen2->charge() << endl;
       }
     }
   }
 }