#include <ShiftedParticleProducerT.h>

Inheritance diagram for ShiftedParticleProducerT< T >:

Classes
struct	binningEntryType

Public Member Functions
	ShiftedParticleProducerT (const edm::ParameterSet &cfg)

	~ShiftedParticleProducerT ()

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 Types
typedef std::vector< T >	ParticleCollection

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

Private Attributes
std::vector< binningEntryType * >	binning_

std::string	moduleLabel_

double	shiftBy_

edm::InputTag	src_

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

template<typename T>
class ShiftedParticleProducerT< T >

Vary energy of electrons/muons/tau-jets by +/- 1 standard deviation, in order to estimate resulting uncertainty on MET

NOTE: energy scale uncertainties need to be specified in python config

Author: Christian Veelken, LLR

Version

Revision:: 1.2

Id:: ShiftedParticleProducerT.h,v 1.2 2011/11/02 14:03:07 veelken Exp

Definition at line 32 of file ShiftedParticleProducerT.h.

Member Typedef Documentation

template<typename T >

typedef std::vector<T> ShiftedParticleProducerT< T >::ParticleCollection

private

Definition at line 34 of file ShiftedParticleProducerT.h.

Constructor & Destructor Documentation

template<typename T >

ShiftedParticleProducerT< T >::ShiftedParticleProducerT ( const edm::ParameterSet & cfg )

inlineexplicit

Definition at line 38 of file ShiftedParticleProducerT.h.

References ShiftedParticleProducerT< T >::binning_, edm::ParameterSet::exists(), edm::ParameterSet::getParameter(), ShiftedParticleProducerT< T >::shiftBy_, and ShiftedParticleProducerT< T >::src_.

     : moduleLabel_(cfg.getParameter<std::string>("@module_label"))
   {
     src_ = cfg.getParameter<edm::InputTag>("src");
 
     shiftBy_ = cfg.getParameter<double>("shiftBy");
 
     if ( cfg.exists("binning") ) {
       typedef std::vector<edm::ParameterSet> vParameterSet;
       vParameterSet cfgBinning = cfg.getParameter<vParameterSet>("binning");
       for ( vParameterSet::const_iterator cfgBinningEntry = cfgBinning.begin();
         cfgBinningEntry != cfgBinning.end(); ++cfgBinningEntry ) {
     binning_.push_back(new binningEntryType(*cfgBinningEntry));
       }
     } else {
       double uncertainty = cfg.getParameter<double>("uncertainty");
       binning_.push_back(new binningEntryType(uncertainty));
     }
     
     produces<ParticleCollection>();
   }

template<typename T >

ShiftedParticleProducerT< T >::~ShiftedParticleProducerT ( )

inline

Definition at line 59 of file ShiftedParticleProducerT.h.

References ShiftedParticleProducerT< T >::binning_.

   {
     for ( typename std::vector<binningEntryType*>::const_iterator it = binning_.begin();
       it != binning_.end(); ++it ) {
       delete (*it);
     }
   }

Member Function Documentation

template<typename T >

void ShiftedParticleProducerT< T >::produce	(	edm::Event &	evt,
		const edm::EventSetup &	es
	)

inlineprivatevirtual

Implements edm::EDProducer.

Definition at line 69 of file ShiftedParticleProducerT.h.

References ShiftedParticleProducerT< T >::binning_, edm::Event::getByLabel(), edm::Event::put(), edm::shift, ShiftedParticleProducerT< T >::shiftBy_, and ShiftedParticleProducerT< T >::src_.

   {
     edm::Handle<ParticleCollection> originalParticles;
     evt.getByLabel(src_, originalParticles);
 
     std::auto_ptr<ParticleCollection> shiftedParticles(new ParticleCollection);
 
     for ( typename ParticleCollection::const_iterator originalParticle = originalParticles->begin();
       originalParticle != originalParticles->end(); ++originalParticle ) {
 
       double uncertainty = 0.;
       for ( typename std::vector<binningEntryType*>::iterator binningEntry = binning_.begin();
         binningEntry != binning_.end(); ++binningEntry ) {
     if ( (!(*binningEntry)->binSelection_) || (*(*binningEntry)->binSelection_)(*originalParticle) ) {
       uncertainty = (*binningEntry)->binUncertainty_;
       break;
     }
       }
       
       double shift = shiftBy_*uncertainty;
 
       reco::Candidate::LorentzVector shiftedParticleP4 = originalParticle->p4();
       shiftedParticleP4 *= (1. + shift);
 
       T shiftedParticle(*originalParticle);      
       shiftedParticle.setP4(shiftedParticleP4);
 
       shiftedParticles->push_back(shiftedParticle);
     }
 
     evt.put(shiftedParticles);
   }