#include <PhotonCoreProducer.h>

Inheritance diagram for PhotonCoreProducer:

Public Member Functions
	PhotonCoreProducer (const edm::ParameterSet &ps)

void	produce (edm::Event &evt, const edm::EventSetup &es) override

	~PhotonCoreProducer () override

Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default

bool	hasAbilityToProduceInBeginLumis () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndRuns () const final

Private Member Functions
void	fillPhotonCollection (edm::Event &evt, edm::EventSetup const &es, const edm::Handle< reco::SuperClusterCollection > &scHandle, const edm::Handle< reco::ConversionCollection > &conversionHandle, const edm::Handle< reco::ElectronSeedCollection > &pixelSeeds, reco::PhotonCoreCollection &outputCollection, int &iSC)

reco::ConversionRef	solveAmbiguity (const edm::Handle< reco::ConversionCollection > &conversionHandle, reco::SuperClusterRef &sc)

Private Attributes
edm::ParameterSet	conf_

edm::EDGetTokenT< reco::ConversionCollection >	conversionProducer_

double	minSCEt_

std::string	PhotonCoreCollection_

edm::EDGetTokenT< reco::ElectronSeedCollection >	pixelSeedProducer_

bool	risolveAmbiguity_

edm::EDGetTokenT< reco::SuperClusterCollection >	scHybridBarrelProducer_

edm::EDGetTokenT< reco::SuperClusterCollection >	scIslandEndcapProducer_

bool	validConversions_

bool	validPixelSeeds_

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
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

Detailed Description

Author: Nancy Marinelli, U. of Notre Dame, US

Definition at line 30 of file PhotonCoreProducer.h.

Constructor & Destructor Documentation

◆ PhotonCoreProducer()

PhotonCoreProducer::PhotonCoreProducer ( const edm::ParameterSet & ps )

Definition at line 18 of file PhotonCoreProducer.cc.

     : conf_(config)
  
 {
   // use onfiguration file to setup input/output collection names
   scHybridBarrelProducer_ =
       consumes<reco::SuperClusterCollection>(conf_.getParameter<edm::InputTag>("scHybridBarrelProducer"));
   scIslandEndcapProducer_ =
       consumes<reco::SuperClusterCollection>(conf_.getParameter<edm::InputTag>("scIslandEndcapProducer"));
   conversionProducer_ = consumes<reco::ConversionCollection>(conf_.getParameter<edm::InputTag>("conversionProducer"));
   PhotonCoreCollection_ = conf_.getParameter<std::string>("photonCoreCollection");
   pixelSeedProducer_ = consumes<reco::ElectronSeedCollection>(conf_.getParameter<edm::InputTag>("pixelSeedProducer"));
   minSCEt_ = conf_.getParameter<double>("minSCEt");
   risolveAmbiguity_ = conf_.getParameter<bool>("risolveConversionAmbiguity");
  
   // Register the product
   produces<reco::PhotonCoreCollection>(PhotonCoreCollection_);
 }

References conf_, conversionProducer_, edm::ParameterSet::getParameter(), minSCEt_, PhotonCoreCollection_, pixelSeedProducer_, risolveAmbiguity_, scHybridBarrelProducer_, scIslandEndcapProducer_, and AlCaHLTBitMon_QueryRunRegistry::string.

◆ ~PhotonCoreProducer()

PhotonCoreProducer::~PhotonCoreProducer ( )

override

Definition at line 37 of file PhotonCoreProducer.cc.

37 {}

Member Function Documentation

◆ fillPhotonCollection()

void PhotonCoreProducer::fillPhotonCollection	(	edm::Event &	evt,
		edm::EventSetup const &	es,
		const edm::Handle< reco::SuperClusterCollection > &	scHandle,
		const edm::Handle< reco::ConversionCollection > &	conversionHandle,
		const edm::Handle< reco::ElectronSeedCollection > &	pixelSeeds,
		reco::PhotonCoreCollection &	outputCollection,
		int &	iSC
	)

private

Definition at line 98 of file PhotonCoreProducer.cc.

                                                         {
   for (unsigned int lSC = 0; lSC < scHandle->size(); lSC++) {
     // get SuperClusterRef
     reco::SuperClusterRef scRef(reco::SuperClusterRef(scHandle, lSC));
     iSC++;
     //const reco::SuperCluster* pClus=&(*scRef);
  
     // SC energy preselection
     if (scRef->energy() / cosh(scRef->eta()) <= minSCEt_)
       continue;
  
     reco::PhotonCore newCandidate(scRef);
     newCandidate.setParentSuperCluster(scRef);
     if (validConversions_) {
       if (risolveAmbiguity_) {
         reco::ConversionRef bestRef = solveAmbiguity(conversionHandle, scRef);
         if (bestRef.isNonnull())
           newCandidate.addConversion(bestRef);
  
       } else {
         for (unsigned int icp = 0; icp < conversionHandle->size(); icp++) {
           reco::ConversionRef cpRef(reco::ConversionRef(conversionHandle, icp));
           if (cpRef->caloCluster().empty())
             continue;
           if (!(scRef.id() == cpRef->caloCluster()[0].id() && scRef.key() == cpRef->caloCluster()[0].key()))
             continue;
           if (!cpRef->isConverted())
             continue;
           newCandidate.addConversion(cpRef);
         }
  
       }  // solve or not the ambiguity of many conversion candidates
     }
  
     if (validPixelSeeds_) {
       for (unsigned int icp = 0; icp < pixelSeedHandle->size(); icp++) {
         reco::ElectronSeedRef cpRef(reco::ElectronSeedRef(pixelSeedHandle, icp));
         if (!cpRef->isEcalDriven())
           continue;
         if (!(scRef.id() == cpRef->caloCluster().id() && scRef.key() == cpRef->caloCluster().key()))
           continue;
         newCandidate.addElectronPixelSeed(cpRef);
       }
     }
  
     outputPhotonCoreCollection.push_back(newCandidate);
   }
 }

References reco::PhotonCore::addConversion(), reco::PhotonCore::addElectronPixelSeed(), printConversionInfo::conversionHandle, edm::Ref< C, T, F >::id(), edm::Ref< C, T, F >::isNonnull(), edm::Ref< C, T, F >::key(), minSCEt_, risolveAmbiguity_, reco::PhotonCore::setParentSuperCluster(), solveAmbiguity(), validConversions_, and validPixelSeeds_.

Referenced by produce().

◆ produce()

void PhotonCoreProducer::produce	(	edm::Event &	evt,
		const edm::EventSetup &	es
	)

override

Definition at line 39 of file PhotonCoreProducer.cc.

                                                                                        {
   using namespace edm;
   //  nEvt_++;
  
   reco::PhotonCoreCollection outputPhotonCoreCollection;
   auto outputPhotonCoreCollection_p = std::make_unique<reco::PhotonCoreCollection>();
  
   // Get the  Barrel Super Cluster collection
   bool validBarrelSCHandle = true;
   Handle<reco::SuperClusterCollection> scBarrelHandle;
   theEvent.getByToken(scHybridBarrelProducer_, scBarrelHandle);
   if (!scBarrelHandle.isValid()) {
     edm::LogError("PhotonCoreProducer") << "Error! Can't get the scHybridBarrelProducer";
     validBarrelSCHandle = false;
   }
  
   // Get the  Endcap Super Cluster collection
   bool validEndcapSCHandle = true;
   Handle<reco::SuperClusterCollection> scEndcapHandle;
   theEvent.getByToken(scIslandEndcapProducer_, scEndcapHandle);
   if (!scEndcapHandle.isValid()) {
     edm::LogError("PhotonCoreProducer") << "Error! Can't get the scIslandEndcapProducer";
     validEndcapSCHandle = false;
   }
  
   validConversions_ = true;
   edm::Handle<reco::ConversionCollection> conversionHandle;
   theEvent.getByToken(conversionProducer_, conversionHandle);
   if (!conversionHandle.isValid()) {
     //edm::LogError("PhotonCoreProducer") << "Error! Can't get the product "<< conversionProducer_.label() << "\n" ;
     validConversions_ = false;
   }
  
   // Get ElectronPixelSeeds
   validPixelSeeds_ = true;
   Handle<reco::ElectronSeedCollection> pixelSeedHandle;
   reco::ElectronSeedCollection pixelSeeds;
   theEvent.getByToken(pixelSeedProducer_, pixelSeedHandle);
   if (!pixelSeedHandle.isValid()) {
     validPixelSeeds_ = false;
   }
   //  if ( validPixelSeeds_) pixelSeeds = *(pixelSeedHandle.product());
  
   int iSC = 0;  // index in photon collection
   // Loop over barrel and endcap SC collections and fill the  photon collection
   if (validBarrelSCHandle)
     fillPhotonCollection(
         theEvent, theEventSetup, scBarrelHandle, conversionHandle, pixelSeedHandle, outputPhotonCoreCollection, iSC);
   if (validEndcapSCHandle)
     fillPhotonCollection(
         theEvent, theEventSetup, scEndcapHandle, conversionHandle, pixelSeedHandle, outputPhotonCoreCollection, iSC);
  
   // put the product in the event
   edm::LogInfo("PhotonCoreProducer") << " Put in the event " << iSC << " Photon Candidates \n";
   outputPhotonCoreCollection_p->assign(outputPhotonCoreCollection.begin(), outputPhotonCoreCollection.end());
   theEvent.put(std::move(outputPhotonCoreCollection_p), PhotonCoreCollection_);
 }

References printConversionInfo::conversionHandle, conversionProducer_, fillPhotonCollection(), edm::Event::getByToken(), edm::HandleBase::isValid(), eostools::move(), PhotonCoreCollection_, pixelSeedProducer_, hltEgammaHLTExtra_cfi::pixelSeeds, edm::Event::put(), scHybridBarrelProducer_, scIslandEndcapProducer_, validConversions_, and validPixelSeeds_.

◆ solveAmbiguity()

reco::ConversionRef PhotonCoreProducer::solveAmbiguity	(	const edm::Handle< reco::ConversionCollection > &	conversionHandle,
		reco::SuperClusterRef &	sc
	)

private

only one track reconstructed. Pick the one with best E/P

Definition at line 153 of file PhotonCoreProducer.cc.

                                                                                    {
   std::multimap<reco::ConversionRef, double> convMap;
   for (unsigned int icp = 0; icp < conversionHandle->size(); icp++) {
     reco::ConversionRef cpRef(reco::ConversionRef(conversionHandle, icp));
  
     if (!(scRef.id() == cpRef->caloCluster()[0].id() && scRef.key() == cpRef->caloCluster()[0].key()))
       continue;
     if (!cpRef->isConverted())
       continue;
     double like = cpRef->MVAout();
     convMap.insert(std::make_pair(cpRef, like));
   }
  
   std::multimap<reco::ConversionRef, double>::iterator iMap;
   double max_lh = -1.;
   reco::ConversionRef bestRef;
   //  std::cout << " Pick up the best conv " << std::endl;
   for (iMap = convMap.begin(); iMap != convMap.end(); iMap++) {
     double like = iMap->second;
     if (like > max_lh) {
       max_lh = like;
       bestRef = iMap->first;
     }
   }
  
   //std::cout << " Best conv like " << max_lh << std::endl;
  
   float ep = 0;
   if (max_lh < 0) {
     //    std::cout << " Candidates with only one track " << std::endl;
     float epMin = 999;
  
     for (iMap = convMap.begin(); iMap != convMap.end(); iMap++) {
       reco::ConversionRef convRef = iMap->first;
       // std::vector<reco::TrackRef> tracks = convRef->tracks();
       const std::vector<edm::RefToBase<reco::Track> > tracks = convRef->tracks();
       float px = tracks[0]->innerMomentum().x();
       float py = tracks[0]->innerMomentum().y();
       float pz = tracks[0]->innerMomentum().z();
       float p = sqrt(px * px + py * py + pz * pz);
       ep = fabs(1. - convRef->caloCluster()[0]->energy() / p);
       //    std::cout << " 1-E/P = " << ep << std::endl;
       if (ep < epMin) {
         epMin = ep;
         bestRef = iMap->first;
       }
     }
     //  std::cout << " Best conv 1-E/P " << ep << std::endl;
   }
  
   return bestRef;
 }