#include <SysShiftMETcorrInputProducer.h>

Inheritance diagram for SysShiftMETcorrInputProducer:

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

	~SysShiftMETcorrInputProducer () 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	produce (edm::Event &, const edm::EventSetup &) override

Private Attributes
TFormula *	corrPx_

TFormula *	corrPy_

std::string	moduleLabel_

edm::EDGetTokenT< edm::View< reco::MET > >	token_

bool	useNvtx

edm::EDGetTokenT< reco::VertexCollection >	verticesToken_

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

Compute MET correction to compensate systematic shift of MET in x/y-direction (cf. https://indico.cern.ch/getFile.py/access?contribId=1&resId=0&materialId=slides&confId=174318 )

Authors: Christian Veelken, LLR

Definition at line 28 of file SysShiftMETcorrInputProducer.h.

Constructor & Destructor Documentation

◆ SysShiftMETcorrInputProducer()

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

explicit

Definition at line 11 of file SysShiftMETcorrInputProducer.cc.

     : moduleLabel_(cfg.getParameter<std::string>("@module_label")), useNvtx(false), corrPx_(nullptr), corrPy_(nullptr) {
   token_ = consumes<edm::View<reco::MET> >(cfg.getParameter<edm::InputTag>("src"));
  
   edm::ParameterSet cfgCorrParameter = cfg.getParameter<edm::ParameterSet>("parameter");
   TString corrPxFormula = cfgCorrParameter.getParameter<std::string>("px");
   TString corrPyFormula = cfgCorrParameter.getParameter<std::string>("py").data();
   if (corrPxFormula.Contains("Nvtx") || corrPyFormula.Contains("Nvtx")) {
     useNvtx = true, verticesToken_ = consumes<reco::VertexCollection>(cfg.getParameter<edm::InputTag>("srcVertices"));
   }
  
   corrPxFormula.ReplaceAll("sumEt", "x");
   corrPxFormula.ReplaceAll("Nvtx", "y");
   std::string corrPxName = std::string(moduleLabel_).append("_corrPx");
   corrPx_ = new TFormula(corrPxName.data(), corrPxFormula.Data());
  
   corrPyFormula.ReplaceAll("sumEt", "x");
   corrPyFormula.ReplaceAll("Nvtx", "y");
   std::string corrPyName = std::string(moduleLabel_).append("_corrPy");
   corrPy_ = new TFormula(corrPyName.data(), corrPyFormula.Data());
  
   produces<CorrMETData>();
 }

References looper::cfg, corrPx_, corrPy_, data, edm::ParameterSet::getParameter(), moduleLabel_, AlCaHLTBitMon_QueryRunRegistry::string, token_, useNvtx, and verticesToken_.

◆ ~SysShiftMETcorrInputProducer()

SysShiftMETcorrInputProducer::~SysShiftMETcorrInputProducer ( )

override

Definition at line 35 of file SysShiftMETcorrInputProducer.cc.

                                                             {
   // nothing to be done yet...
 }

Member Function Documentation

◆ produce()

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

overrideprivate

Definition at line 39 of file SysShiftMETcorrInputProducer.cc.

                                                                                  {
   //std::cout << "<SysShiftMETcorrInputProducer::produce>:" << std::endl;
  
   typedef edm::View<reco::MET> METView;
   edm::Handle<METView> met;
   evt.getByToken(token_, met);
   if (met->size() != 1)
     throw cms::Exception("SysShiftMETcorrInputProducer::produce") << "Failed to find unique MET object !!\n";
  
   double sumEt = met->front().sumEt();
   //std::cout << " sumEt = " << sumEt << std::endl;
  
   size_t Nvtx = 0;
   if (useNvtx) {
     edm::Handle<reco::VertexCollection> vertices;
     evt.getByToken(verticesToken_, vertices);
     Nvtx = vertices->size();
   }
   //std::cout << " Nvtx = " << Nvtx << std::endl;
  
   std::unique_ptr<CorrMETData> metCorr(new CorrMETData());
   metCorr->mex = -corrPx_->Eval(sumEt, Nvtx);
   metCorr->mey = -corrPy_->Eval(sumEt, Nvtx);
   //std::cout << "--> metCorr: Px = " << metCorr->mex << ", Py = " << metCorr->mey << std::endl;
  
   evt.put(std::move(metCorr));
 }