#include <ShiftedPFCandidateProducerForPFMEtMVA.h>

Inheritance diagram for ShiftedPFCandidateProducerForPFMEtMVA:

Classes
struct	objectEntryType

Public Member Functions
	ShiftedPFCandidateProducerForPFMEtMVA (const edm::ParameterSet &)

	~ShiftedPFCandidateProducerForPFMEtMVA ()

Public Member Functions inherited from edm::EDProducer
	EDProducer ()

virtual	~EDProducer ()

Public Member Functions inherited from edm::ProducerBase
	ProducerBase ()

void	registerProducts (ProducerBase , ProductRegistry , ModuleDescription const &)

boost::function< void(const BranchDescription &)>	registrationCallback () const
	used by the fwk to register list of products More...

virtual	~ProducerBase ()

Private Member Functions
void	produce (edm::Event &, const edm::EventSetup &)

Private Attributes
double	dRmatch_Object_

double	dRmatch_PFCandidate_

std::string	moduleLabel_

std::vector< objectEntryType >	objects_

edm::InputTag	srcPFCandidates_

edm::InputTag	srcShiftedObjects_

edm::InputTag	srcUnshiftedObjects_

Additional Inherited Members
Public Types inherited from edm::EDProducer
typedef EDProducer	ModuleType

typedef WorkerT< EDProducer >	WorkerType

Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList

Static Public Member Functions inherited from edm::EDProducer
static const std::string &	baseType ()

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Protected Member Functions inherited from edm::EDProducer
CurrentProcessingContext const *	currentContext () const

Protected Member Functions inherited from edm::ProducerBase
template<class TProducer , class TMethod >
void	callWhenNewProductsRegistered (TProducer *iProd, TMethod iMethod)

Detailed Description

Vary energy of PFCandidates coinciding in eta-phi with selected electrons/muons/tau-jets/jets by electron/muon/tau-jet/jet energy uncertainty.

NOTE: Auxiliary class specific to estimating systematic uncertainty on PFMET reconstructed by MVA-based algorithm (implemented in RecoMET/METProducers/src/PFMETProducerMVA.cc)

Author: Christian Veelken, LLR

Version

Revision:: 1.1

Id:: ShiftedPFCandidateProducerForPFMEtMVA.h,v 1.1 2012/08/31 10:06:14 veelken Exp

Definition at line 32 of file ShiftedPFCandidateProducerForPFMEtMVA.h.

Constructor & Destructor Documentation

ShiftedPFCandidateProducerForPFMEtMVA::ShiftedPFCandidateProducerForPFMEtMVA ( const edm::ParameterSet & cfg )

explicit

Definition at line 9 of file ShiftedPFCandidateProducerForPFMEtMVA.cc.

References dRmatch_Object_, dRmatch_PFCandidate_, edm::ParameterSet::exists(), edm::ParameterSet::getParameter(), srcPFCandidates_, srcShiftedObjects_, and srcUnshiftedObjects_.

   : moduleLabel_(cfg.getParameter<std::string>("@module_label"))
 {
   srcPFCandidates_ = cfg.getParameter<edm::InputTag>("srcPFCandidates");
   srcUnshiftedObjects_ = cfg.getParameter<edm::InputTag>("srcUnshiftedObjects");
   srcShiftedObjects_ = cfg.getParameter<edm::InputTag>("srcShiftedObjects");
 
   dRmatch_PFCandidate_ = cfg.getParameter<double>("dRmatch_PFCandidate");
   dRmatch_Object_ = cfg.exists("dRmatch_Object") ?
     cfg.getParameter<double>("dRmatch_Object") : 0.1;
 
   produces<reco::PFCandidateCollection>();
 }

ShiftedPFCandidateProducerForPFMEtMVA::~ShiftedPFCandidateProducerForPFMEtMVA ( )

Definition at line 23 of file ShiftedPFCandidateProducerForPFMEtMVA.cc.

 {
 // nothing to be done yet...
 }

Member Function Documentation

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

privatevirtual

Implements edm::EDProducer.

Definition at line 28 of file ShiftedPFCandidateProducerForPFMEtMVA.cc.

References deltaR(), PFRecoTauDiscriminationAgainstElectronDeadECAL_cfi::dR, dRmatch_Object_, dRmatch_PFCandidate_, edm::Event::getByLabel(), dbtoconf::object, objects_, edm::Event::put(), reco::LeafCandidate::setP4(), edm::shift, srcPFCandidates_, srcShiftedObjects_, and srcUnshiftedObjects_.

 {
   edm::Handle<reco::PFCandidateCollection> originalPFCandidates;
   evt.getByLabel(srcPFCandidates_, originalPFCandidates);
 
   typedef edm::View<reco::Candidate> CandidateView;
 
   edm::Handle<CandidateView> unshiftedObjects;
   evt.getByLabel(srcUnshiftedObjects_, unshiftedObjects);
 
   edm::Handle<CandidateView> shiftedObjects;
   evt.getByLabel(srcShiftedObjects_, shiftedObjects);
 
   objects_.clear();
   
   for ( CandidateView::const_iterator unshiftedObject = unshiftedObjects->begin();
     unshiftedObject != unshiftedObjects->end(); ++unshiftedObject ) {
     bool isMatched_Object = false;
     double dRbestMatch_Object = 1.e+3;
     reco::Candidate::LorentzVector shiftedObjectP4_matched;
     for ( CandidateView::const_iterator shiftedObject = shiftedObjects->begin();
     shiftedObject != shiftedObjects->end(); ++shiftedObject ) {
       double dR = deltaR(unshiftedObject->p4(), shiftedObject->p4());
       if ( dR < dRmatch_Object_ && dR < dRbestMatch_Object ) {
     shiftedObjectP4_matched = shiftedObject->p4();
     isMatched_Object = true;
     dRbestMatch_Object = dR;
       }
     }
     if ( isMatched_Object ) {
       objects_.push_back(objectEntryType(shiftedObjectP4_matched, unshiftedObject->p4(), dRbestMatch_Object));
     }
   }
  
   std::auto_ptr<reco::PFCandidateCollection> shiftedPFCandidates(new reco::PFCandidateCollection);
     
   for ( reco::PFCandidateCollection::const_iterator originalPFCandidate = originalPFCandidates->begin();
     originalPFCandidate != originalPFCandidates->end(); ++originalPFCandidate ) {
     
     double shift = 0.;
     bool applyShift = false;
     double dRbestMatch_PFCandidate = 1.e+3;
     for ( std::vector<objectEntryType>::const_iterator object = objects_.begin();
       object != objects_.end(); ++object ) {
       if ( !object->isValidMatch_ ) continue;
       double dR = deltaR(originalPFCandidate->p4(), object->unshiftedObjectP4_);
       if ( dR < dRmatch_PFCandidate_ && dR < dRbestMatch_PFCandidate ) {
     shift = object->shift_;
     applyShift = true;
     dRbestMatch_PFCandidate = dR;
       }
     }
     
     reco::Candidate::LorentzVector shiftedPFCandidateP4 = originalPFCandidate->p4();
     if ( applyShift ) shiftedPFCandidateP4 *= (1. + shift);
     
     reco::PFCandidate shiftedPFCandidate(*originalPFCandidate);      
     shiftedPFCandidate.setP4(shiftedPFCandidateP4);
     
     shiftedPFCandidates->push_back(shiftedPFCandidate);
   }
   
   evt.put(shiftedPFCandidates);
 }