#include <BasicGenParticleValidation.h>

Inheritance diagram for BasicGenParticleValidation:

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

	BasicGenParticleValidation (const edm::ParameterSet &)

void	bookHistograms (DQMStore::IBooker &i, edm::Run const &, edm::EventSetup const &) override

bool	matchParticles (const HepMC::GenParticle &, const reco::GenParticle &)

	~BasicGenParticleValidation () override

Public Member Functions inherited from DQMEDAnalyzer
void	accumulate (edm::Event const &event, edm::EventSetup const &setup) final

void	beginLuminosityBlock (edm::LuminosityBlock const &lumi, edm::EventSetup const &setup) final

void	beginRun (edm::Run const &run, edm::EventSetup const &setup) final

void	beginStream (edm::StreamID id) final

virtual void	dqmBeginRun (edm::Run const &, edm::EventSetup const &)

	DQMEDAnalyzer ()

void	endLuminosityBlock (edm::LuminosityBlock const &lumi, edm::EventSetup const &setup) final

void	endRun (edm::Run const &run, edm::EventSetup const &setup) final

virtual bool	getCanSaveByLumi ()

Public Member Functions inherited from edm::stream::EDProducer< edm::GlobalCache< DQMEDAnalyzerGlobalCache >, edm::EndRunProducer, edm::EndLuminosityBlockProducer, edm::Accumulator >
	EDProducer ()=default

bool	hasAbilityToProduceInBeginLumis () const final

bool	hasAbilityToProduceInBeginProcessBlocks () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndProcessBlocks () const final

bool	hasAbilityToProduceInEndRuns () const final

Private Attributes
MonitorElement *	genJetCentral

edm::InputTag	genjetCollection_

edm::EDGetTokenT< reco::GenJetCollection >	genjetCollectionToken_

MonitorElement *	genJetDeltaEtaMin

MonitorElement *	genJetEnergy

MonitorElement *	genJetEta

MonitorElement *	genJetMult

MonitorElement *	genJetPhi

MonitorElement *	genJetPt

MonitorElement *	genJetPto1

MonitorElement *	genJetPto10

MonitorElement *	genJetPto100

MonitorElement *	genJetTotPt

MonitorElement *	genMatched

edm::InputTag	genparticleCollection_

edm::EDGetTokenT< reco::GenParticleCollection >	genparticleCollectionToken_

MonitorElement *	genPMultiplicity

edm::InputTag	hepmcCollection_

edm::EDGetTokenT< edm::HepMCProduct >	hepmcCollectionToken_

MonitorElement *	matchedResolution

double	matchPr_

MonitorElement *	multipleMatching

MonitorElement *	nEvt

unsigned int	verbosity_

WeightManager	wmanager_

Additional Inherited Members
Public Types inherited from DQMEDAnalyzer
typedef dqm::reco::DQMStore	DQMStore

typedef dqm::reco::MonitorElement	MonitorElement

Public Types inherited from edm::stream::EDProducer< edm::GlobalCache< DQMEDAnalyzerGlobalCache >, edm::EndRunProducer, edm::EndLuminosityBlockProducer, edm::Accumulator >
typedef CacheContexts< T... >	CacheTypes

typedef CacheTypes::GlobalCache	GlobalCache

typedef AbilityChecker< T... >	HasAbility

typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache

typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext

typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache

typedef CacheTypes::RunCache	RunCache

typedef RunContextT< RunCache, GlobalCache >	RunContext

typedef CacheTypes::RunSummaryCache	RunSummaryCache

Static Public Member Functions inherited from DQMEDAnalyzer
static void	globalEndJob (DQMEDAnalyzerGlobalCache const *)

static void	globalEndLuminosityBlockProduce (edm::LuminosityBlock &lumi, edm::EventSetup const &setup, LuminosityBlockContext const *context)

static void	globalEndRunProduce (edm::Run &run, edm::EventSetup const &setup, RunContext const *context)

static std::unique_ptr< DQMEDAnalyzerGlobalCache >	initializeGlobalCache (edm::ParameterSet const &)

Protected Member Functions inherited from DQMEDAnalyzer
uint64_t	meId () const

Protected Attributes inherited from DQMEDAnalyzer
edm::EDPutTokenT< DQMToken >	lumiToken_

edm::EDPutTokenT< DQMToken >	runToken_

unsigned int	streamId_

Detailed Description

Definition at line 36 of file BasicGenParticleValidation.h.

Constructor & Destructor Documentation

◆ BasicGenParticleValidation()

BasicGenParticleValidation::BasicGenParticleValidation ( const edm::ParameterSet & iPSet )

explicit

Definition at line 15 of file BasicGenParticleValidation.cc.

     : wmanager_(iPSet, consumesCollector()),
       hepmcCollection_(iPSet.getParameter<edm::InputTag>("hepmcCollection")),
       genparticleCollection_(iPSet.getParameter<edm::InputTag>("genparticleCollection")),
       genjetCollection_(iPSet.getParameter<edm::InputTag>("genjetsCollection")),
       matchPr_(iPSet.getParameter<double>("matchingPrecision")),
       verbosity_(iPSet.getUntrackedParameter<unsigned int>("verbosity", 0)) {
   hepmcCollectionToken_ = consumes<HepMCProduct>(hepmcCollection_);
   genparticleCollectionToken_ = consumes<reco::GenParticleCollection>(genparticleCollection_);
   genjetCollectionToken_ = consumes<reco::GenJetCollection>(genjetCollection_);
 }

References genjetCollection_, genjetCollectionToken_, genparticleCollection_, genparticleCollectionToken_, hepmcCollection_, and hepmcCollectionToken_.

◆ ~BasicGenParticleValidation()

BasicGenParticleValidation::~BasicGenParticleValidation ( )

override

Definition at line 27 of file BasicGenParticleValidation.cc.

27 {}

Member Function Documentation

◆ analyze()

void BasicGenParticleValidation::analyze	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)

overridevirtual

Gathering the HepMCProduct information

Reimplemented from DQMEDAnalyzer.

Definition at line 97 of file BasicGenParticleValidation.cc.

                                                                                             {
   unsigned int initSize = 1000;
  
   edm::Handle<HepMCProduct> evt;
   iEvent.getByToken(hepmcCollectionToken_, evt);
  
   //Get HepMC EVENT
   HepMC::GenEvent* myGenEvent = new HepMC::GenEvent(*(evt->GetEvent()));
  
   double weight = wmanager_.weight(iEvent);
  
   nEvt->Fill(0.5, weight);
  
   std::vector<const HepMC::GenParticle*> hepmcGPCollection;
   std::vector<int> barcodeList;
   hepmcGPCollection.reserve(initSize);
   barcodeList.reserve(initSize);
  
   //Looping through HepMC::GenParticle collection to search for status 1 particles
   for (HepMC::GenEvent::particle_const_iterator iter = myGenEvent->particles_begin();
        iter != myGenEvent->particles_end();
        ++iter) {
     if ((*iter)->status() == 1) {
       hepmcGPCollection.push_back(*iter);
       barcodeList.push_back((*iter)->barcode());
       if (verbosity_ > 0) {
         std::cout << "HepMC " << std::setw(14) << std::fixed << (*iter)->pdg_id() << std::setw(14) << std::fixed
                   << (*iter)->momentum().px() << std::setw(14) << std::fixed << (*iter)->momentum().py()
                   << std::setw(14) << std::fixed << (*iter)->momentum().pz() << std::endl;
       }
     }
   }
  
   // Gather information on the reco::GenParticle collection
   edm::Handle<reco::GenParticleCollection> genParticles;
   iEvent.getByToken(genparticleCollectionToken_, genParticles);
  
   std::vector<const reco::GenParticle*> particles;
   particles.reserve(initSize);
   for (reco::GenParticleCollection::const_iterator iter = genParticles->begin(); iter != genParticles->end(); ++iter) {
     if ((*iter).status() == 1) {
       particles.push_back(&*iter);
       if (verbosity_ > 0) {
         std::cout << "reco  " << std::setw(14) << std::fixed << (*iter).pdgId() << std::setw(14) << std::fixed
                   << (*iter).px() << std::setw(14) << std::fixed << (*iter).py() << std::setw(14) << std::fixed
                   << (*iter).pz() << std::endl;
       }
     }
   }
  
   unsigned int nReco = particles.size();
   unsigned int nHepMC = hepmcGPCollection.size();
  
   genPMultiplicity->Fill(std::log10(nReco), weight);
  
   // Define vector containing index of hepmc corresponding to the reco::GenParticle
   std::vector<int> hepmcMatchIndex;
   hepmcMatchIndex.reserve(initSize);
  
   // Matching procedure
  
   // Check array size consistency
  
   if (nReco != nHepMC) {
     edm::LogWarning("CollectionSizeInconsistency")
         << "Collection size inconsistency: HepMC::GenParticle = " << nHepMC << " reco::GenParticle = " << nReco;
   }
  
   // Match each HepMC with a reco
  
   for (unsigned int i = 0; i < nReco; ++i) {
     for (unsigned int j = 0; j < nHepMC; ++j) {
       if (matchParticles(hepmcGPCollection[j], particles[i])) {
         hepmcMatchIndex.push_back((int)j);
         if (hepmcGPCollection[j]->momentum().rho() != 0.) {
           double reso = 1. - particles[i]->p() / hepmcGPCollection[j]->momentum().rho();
           if (verbosity_ > 0) {
             std::cout << "Matching momentum: reco = " << particles[i]->p()
                       << " HepMC = " << hepmcGPCollection[j]->momentum().rho() << " resoultion = " << reso << std::endl;
           }
           matchedResolution->Fill(std::log10(std::fabs(reso)), weight);
         }
         continue;
       }
     }
   }
  
   // Check unicity of matching
  
   unsigned int nMatched = hepmcMatchIndex.size();
  
   if (nMatched != nReco) {
     edm::LogWarning("IncorrectMatching") << "Incorrect number of matched indexes: GenParticle = " << nReco
                                          << " matched indexes = " << nMatched;
   }
   genMatched->Fill(int(nReco - nMatched), weight);
  
   unsigned int nWrMatch = 0;
  
   for (unsigned int i = 0; i < nMatched; ++i) {
     for (unsigned int j = i + 1; j < nMatched; ++j) {
       if (hepmcMatchIndex[i] == hepmcMatchIndex[j]) {
         int theIndex = hepmcMatchIndex[i];
         edm::LogWarning("DuplicatedMatching")
             << "Multiple matching occurencies for GenParticle barcode = " << barcodeList[theIndex];
         nWrMatch++;
       }
     }
   }
   multipleMatching->Fill(int(nWrMatch), weight);
  
   // Gather information in the GenJet collection
   edm::Handle<reco::GenJetCollection> genJets;
   iEvent.getByToken(genjetCollectionToken_, genJets);
  
   int nJets = 0;
   int nJetso1 = 0;
   int nJetso10 = 0;
   int nJetso100 = 0;
   int nJetsCentral = 0;
   double totPt = 0.;
  
   std::vector<double> jetEta;
   jetEta.reserve(initSize);
  
   for (reco::GenJetCollection::const_iterator iter = genJets->begin(); iter != genJets->end(); ++iter) {
     nJets++;
     double pt = (*iter).pt();
     totPt += pt;
     if (pt > 1.)
       nJetso1++;
     if (pt > 10.)
       nJetso10++;
     if (pt > 100.)
       nJetso100++;
     double eta = (*iter).eta();
     if (std::fabs(eta) < 2.5)
       nJetsCentral++;
     jetEta.push_back(eta);
  
     genJetEnergy->Fill(std::log10((*iter).energy()), weight);
     genJetPt->Fill(std::log10(pt), weight);
     genJetEta->Fill(eta, weight);
     genJetPhi->Fill((*iter).phi() / CLHEP::degree, weight);
   }
  
   genJetMult->Fill(nJets, weight);
   genJetPto1->Fill(nJetso1, weight);
   genJetPto10->Fill(nJetso10, weight);
   genJetPto100->Fill(nJetso100, weight);
   genJetCentral->Fill(nJetsCentral, weight);
  
   genJetTotPt->Fill(std::log10(totPt), weight);
  
   double deltaEta = 999.;
   if (jetEta.size() > 1) {
     for (unsigned int i = 0; i < jetEta.size(); i++) {
       for (unsigned int j = i + 1; j < jetEta.size(); j++) {
         deltaEta = std::min(deltaEta, std::fabs(jetEta[i] - jetEta[j]));
       }
     }
   }
  
   genJetDeltaEtaMin->Fill(deltaEta, weight);
  
   delete myGenEvent;
 }  //analyze

References gather_cfg::cout, spr::deltaEta, PVValHelper::eta, dqm::impl::MonitorElement::Fill(), alignBH_cfg::fixed, genJetCentral, genjetCollectionToken_, genJetDeltaEtaMin, genJetEnergy, genJetEta, genJetMult, genJetPhi, genJetPt, genJetPto1, genJetPto10, genJetPto100, ttbarCategorization_cff::genJets, genJetTotPt, genMatched, genparticleCollectionToken_, genParticles2HepMC_cfi::genParticles, genPMultiplicity, edm::HepMCProduct::GetEvent(), hepmcCollectionToken_, mps_fire::i, iEvent, dqmiolumiharvest::j, reco::btau::jetEta, matchedResolution, matchParticles(), min(), multipleMatching, nEvt, ecalTrigSettings_cff::particles, DiDispStaMuonMonitor_cfi::pt, rho, verbosity_, WeightManager::weight(), mps_merge::weight, and wmanager_.

◆ bookHistograms()

void BasicGenParticleValidation::bookHistograms	(	DQMStore::IBooker &	i,
		edm::Run const &	,
		edm::EventSetup const &
	)

overridevirtual

Setting the DQM top directories

Booking the ME's

multiplicity

Implements DQMEDAnalyzer.

Definition at line 29 of file BasicGenParticleValidation.cc.

                                                                                                        {
   DQMHelper dqm(&i);
   i.setCurrentFolder("Generator/GenParticles");
  
   // Number of analyzed events
   nEvt = dqm.book1dHisto("nEvt", "n analyzed Events", 1, 0., 1., "", "Number of Events");
  
   genPMultiplicity = dqm.book1dHisto("genPMultiplicty",
                                      "Log(No. all GenParticles)",
                                      50,
                                      -1,
                                      5,
                                      "log_{10}(N_{All GenParticles})",
                                      "Number of Events");  //Log
   //difference in HepMC and reco multiplicity
   genMatched = dqm.book1dHisto(
       "genMatched", "Difference reco - matched", 50, -25, 25, "N_{All GenParticles}-N_{Matched}", "Number of Events");
   //multiple matching
   multipleMatching = dqm.book1dHisto("multipleMatching",
                                      "multiple reco HepMC matching",
                                      50,
                                      0,
                                      50,
                                      "N_{multiple reco HepMC matching}",
                                      "Number of Events");
   //momentum difference of matched particles
   matchedResolution = dqm.book1dHisto("matchedResolution",
                                       "log10(momentum difference of matched particles)",
                                       70,
                                       -10.,
                                       -3.,
                                       "log_{10}(#DeltaP_{matched Particles})",
                                       "Number of Events");
  
   // GenJet general distributions
   genJetMult = dqm.book1dHisto("genJetMult", "GenJet multiplicity", 50, 0, 50, "N_{gen-jets}", "Number of Events");
   genJetEnergy = dqm.book1dHisto(
       "genJetEnergy", "Log10(GenJet energy)", 60, -1, 5, "log_{10}(E^{gen-jets}) (log_{10}(GeV))", "Number of Events");
   genJetPt = dqm.book1dHisto(
       "genJetPt", "Log10(GenJet pt)", 60, -1, 5, "log_{10}(P_{t}^{gen-jets}) (log_{10}(GeV))", "Number of Events");
   genJetEta = dqm.book1dHisto("genJetEta", "GenJet eta", 220, -11, 11, "#eta^{gen-jets}", "Number of Events");
   genJetPhi = dqm.book1dHisto("genJetPhi", "GenJet phi", 360, -180, 180, "#phi^{gen-jets} (rad)", "Number of Events");
   genJetDeltaEtaMin = dqm.book1dHisto(
       "genJetDeltaEtaMin", "GenJet minimum rapidity gap", 30, 0, 30, "#delta#eta_{min}^{gen-jets}", "Number of Events");
  
   genJetPto1 = dqm.book1dHisto(
       "genJetPto1", "GenJet multiplicity above 1 GeV", 50, 0, 50, "N_{gen-jets P_{t}>1GeV}", "Number of Events");
   genJetPto10 = dqm.book1dHisto(
       "genJetPto10", "GenJet multiplicity above 10 GeV", 50, 0, 50, "N_{gen-jets P_{t}>10GeV}", "Number of Events");
   genJetPto100 = dqm.book1dHisto(
       "genJetPto100", "GenJet multiplicity above 100 GeV", 50, 0, 50, "N_{gen-jets P_{t}>100GeV}", "Number of Events");
   genJetCentral = dqm.book1dHisto(
       "genJetCentral", "GenJet multiplicity |eta|.lt.2.5", 50, 0, 50, "N_{gen-jets |#eta|#leq2.5}", "Number of Events");
  
   genJetTotPt = dqm.book1dHisto("genJetTotPt",
                                 "Log10(GenJet total pt)",
                                 100,
                                 -5,
                                 5,
                                 "log_{10}(#SigmaP_{t}^{gen-jets}) (log_{10}(GeV))",
                                 "Number of Events");
  
   return;
 }

References genJetCentral, genJetDeltaEtaMin, genJetEnergy, genJetEta, genJetMult, genJetPhi, genJetPt, genJetPto1, genJetPto10, genJetPto100, genJetTotPt, genMatched, genPMultiplicity, mps_fire::i, matchedResolution, multipleMatching, and nEvt.

◆ matchParticles()

bool BasicGenParticleValidation::matchParticles	(	const HepMC::GenParticle *&	hepmcP,
		const reco::GenParticle *&	recoP
	)

Definition at line 266 of file BasicGenParticleValidation.cc.

                                                                                                               {
   bool state = false;
  
   if (hepmcP->pdg_id() != recoP->pdgId())
     return state;
   if (std::fabs(hepmcP->momentum().px() - recoP->px()) < std::fabs(matchPr_ * hepmcP->momentum().px()) &&
       std::fabs(hepmcP->momentum().py() - recoP->py()) < std::fabs(matchPr_ * hepmcP->momentum().py()) &&
       std::fabs(hepmcP->momentum().pz() - recoP->pz()) < std::fabs(matchPr_ * hepmcP->momentum().pz())) {
     state = true;
   }
  
   return state;
 }