ITauTruthMatchingTool.h

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef TAUANALYSISTOOLS_ITAUTRUTHMATCHINGTOOL_H
#define TAUANALYSISTOOLS_ITAUTRUTHMATCHINGTOOL_H
 
/*
  author: Dirk Duschinger
  mail: dirk.duschinger@cern.ch
  documentation in: ../README.rst
*/
 
// Framework include(s):
#include "AsgTools/IAsgTool.h"
 
// EDM include(s):
#include "xAODTau/TauJet.h"
 
// // local include(s)
#include "IBuildTruthTaus.h"
 
// local include(s)
#include "TauAnalysisTools/Enums.h"
 
namespace TauAnalysisTools
{
 
class ITauTruthMatchingTool
  // The order matters, do not switch them !!!
  : public virtual TauAnalysisTools::IBuildTruthTaus
  , public virtual asg::IAsgTool
{
 
  ASG_TOOL_INTERFACE( TauAnalysisTools::ITauTruthMatchingTool )
 
public:
  // initialize the tool
  virtual StatusCode initialize() = 0;
 
  virtual std::unique_ptr<ITruthTausEvent> getEvent() const = 0;
 
  // get pointer to truth tau, if no truth tau was found a null pointer is returned
  virtual const xAOD::TruthParticle* getTruth(const xAOD::TauJet& xTau) = 0;
  virtual const xAOD::TruthParticle* getTruth(const xAOD::TauJet& xTau,
                                              ITruthTausEvent& truthTausEvent) const = 0;
  virtual std::vector<const xAOD::TruthParticle*> getTruth(const std::vector<const xAOD::TauJet*>& vTaus) = 0;
 
  // wrapper function to get truth tau visible TLorentzvector
  virtual TLorentzVector getTruthTauP4Vis(const xAOD::TauJet& xTau) = 0;
  virtual TLorentzVector getTruthTauP4Vis(const xAOD::TruthParticle& xTruthTau) const = 0;
 
  // wrapper function to get truth tau invisible TLorentzvector
  virtual TLorentzVector getTruthTauP4Invis(const xAOD::TauJet& xTau) = 0;
  virtual TLorentzVector getTruthTauP4Invis(const xAOD::TruthParticle& xTruthTau) const = 0;
 
  // get type of truth match particle (hadronic tau, leptonic tau, electron, muon, jet)
  virtual TauAnalysisTools::TruthMatchedParticleType getTruthParticleType(const xAOD::TauJet& xTau) = 0;
 
  // wrapper function to count number of decay particles of given pdg id
  virtual int getNTauDecayParticles(const xAOD::TauJet& xTau, int iPdgId, bool bCompareAbsoluteValues = false) = 0;
  virtual int getNTauDecayParticles(const xAOD::TruthParticle& xTruthTau, int iPdgId, bool bCompareAbsoluteValues = false) const = 0;
 
  // wrapper function to obtain truth version of xAOD::TauJetParameters::DecayMode
  virtual xAOD::TauJetParameters::DecayMode getDecayMode(const xAOD::TauJet& xTau) = 0;
  virtual xAOD::TauJetParameters::DecayMode getDecayMode(const xAOD::TruthParticle& xTruthTau) const = 0;
 
}; // class ITauTruthMatchingTool
 
} // namespace TauAnalysisTools
 
#endif // TAUANALYSISTOOLS_ITAUTRUTHMATCHINGTOOL_H