TauTrack_v1.cxx

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
// EDM include(s):
#include "xAODCore/AuxStoreAccessorMacros.h"
 
// Local include(s):
#include "xAODTau/versions/TauTrack_v1.h"
#define TAUTRACK_V1_ACCESSORS
#include "TauJetAccessors_v3.h"
 
#include "xAODTracking/TrackParticle.h"
#include "xAODTau/TauJet.h"
 
#include "TruthUtils/ParticleConstants.h"
 
#include <cmath>
 
namespace xAOD {
 
  TauTrack_v1::TauTrack_v1()
    : IParticle() {
  }
 
  AUXSTORE_PRIMITIVE_GETTER_WITH_CAST( TauTrack_v1, float, double, pt)
  AUXSTORE_PRIMITIVE_GETTER_WITH_CAST( TauTrack_v1, float, double, eta)
  AUXSTORE_PRIMITIVE_GETTER_WITH_CAST( TauTrack_v1, float, double, phi)
 
  // Pion mass, as assumed for the track:
  static const double PION_MASS = ParticleConstants::chargedPionMassInMeV;
 
  TauTrack_v1::FourMom_t TauTrack_v1::p4() const {
    FourMom_t p4;
    p4.SetPtEtaPhiM( pt(), eta(), phi(), m()); 
    return p4;  
  }
 
  TauTrack_v1::GenVecFourMom_t TauTrack_v1::genvecP4() const {
    return GenVecFourMom_t(pt(), eta(), phi(), m());
  }
 
  void TauTrack_v1::setP4(double pt, double eta, double phi, double /*m*/)  {
 
     // Set the raw variables:
     static const Accessor< float > acc1( "pt" );
     static const Accessor< float > acc2( "eta" );
     static const Accessor< float > acc3( "phi" );
     acc1( *this ) = pt;
     acc2( *this ) = eta;
     acc3( *this ) = phi;
 
     return;
  }
 
 
  Type::ObjectType TauTrack_v1::type() const {
      return Type::CompositeParticle;
  }
 
 
  double TauTrack_v1::rapidity() const {
    return genvecP4().Rapidity();
  }
 
  double TauTrack_v1::m() const {
     return PION_MASS;
  }
 
  double TauTrack_v1::e() const {
    return genvecP4().E();
  }
 
  AUXSTORE_PRIMITIVE_SETTER_AND_GETTER( TauTrack_v1, TauTrack_v1::TrackFlagType, flagSet, setFlagSet)
 
  bool TauTrack_v1::flag(TauJetParameters::TauTrackFlag flag) const{
    static const Accessor< TauTrack_v1::TrackFlagType > trackFlags("flagSet");
    TrackFlagType f(trackFlags(*this));
    std::bitset<8*sizeof(TrackFlagType)> thisTracksFlags(f);
    return thisTracksFlags[flag];
  }
 
  bool TauTrack_v1::flagWithMask(unsigned int flags) const{
    static const Accessor< TauTrack_v1::TrackFlagType > trackFlags("flagSet");
    TrackFlagType f(trackFlags(*this));
    return ((f&flags)==flags);
  }
 
  void TauTrack_v1::setFlag(TauJetParameters::TauTrackFlag flag, bool value){
    static const Accessor< TauTrack_v1::TrackFlagType > trackFlags("flagSet");
    TrackFlagType& f(trackFlags(*this));
    std::bitset<8*sizeof(TrackFlagType)> thisTracksFlags(f);
    thisTracksFlags[flag] = value;
    f = thisTracksFlags.to_ulong();
  }
 
  // superseded by z0sinthetaTJVA()
  float TauTrack_v1::z0sinThetaTJVA(const xAOD::IParticle& part ) const{
    const xAOD::TrackParticle* xTrackParticle = this->track();
    const xAOD::TauJet* tau = dynamic_cast<const xAOD::TauJet*> (&part);
    if( tau ) {
       float zv = 0.0;
       if( tau->vertexLink().isValid() ) {
          zv = tau->vertex()->z();
       }
       return ( ( xTrackParticle->z0() + xTrackParticle->vz() - zv ) *
                std::sin( xTrackParticle->theta() ) );
    } else {
      std::cerr << "ERROR xAOD::TauTrack::z0sinThetaTJVA cannot get TauJet" << std::endl;
      return 0;
    }
  }
 
  static const SG::Accessor< float > d0TJVAAcc( "d0TJVA" );
  float TauTrack_v1::d0TJVA() const {
    return d0TJVAAcc(*this);
  }
 
  static const SG::Accessor< float > d0SigTJVAAcc( "d0SigTJVA" );  
  float TauTrack_v1::d0SigTJVA() const {
    return d0SigTJVAAcc(*this);
  }
 
  static const SG::Accessor< float > z0sinthetaTJVAAcc( "z0sinthetaTJVA" );
  float TauTrack_v1::z0sinthetaTJVA() const {
    return z0sinthetaTJVAAcc(*this);
  }
 
  static const SG::Accessor< float > z0sinthetaSigTJVAAcc( "z0sinthetaSigTJVA" );
  float TauTrack_v1::z0sinthetaSigTJVA() const {
    return z0sinthetaSigTJVAAcc(*this);
  }
 
  float TauTrack_v1::rConv() const{
    return std::sqrt(std::fabs(this->d0TJVA())*this->pt()/(0.3 /*0.15*2.*/));
  }
 
  float TauTrack_v1::rConvII() const{
    return std::sqrt( std::fabs( this->d0TJVA() * this->pt() ) / (0.3)  )*(this->d0TJVA()/fabs(this->d0TJVA()))*this->track()->charge();
  }
 
  float TauTrack_v1::dRJetSeedAxis(const xAOD::IParticle& part) const{
    const xAOD::TauJet* tau = dynamic_cast<const xAOD::TauJet*> (&part);
    if(tau)
      return tau->jet()->p4().DeltaR(this->p4());//this function should take jet seed as input
    else {
      std::cerr << "ERROR xAOD::TauTrack::z0sinThetaTJVA cannot get TauJet" << std::endl;
    }
    return 0.;
  }
 
  bool TauTrack_v1::detail( TauJetParameters::TrackDetail detail, float& value ) const{
    // Get the detail accessor:
    const Accessor< float >* acc = xAODTau::trackDetailsAccessorV3<float>( detail );
    if( ! acc ) return false;
    if( ! acc->isAvailable( *this ) ) return false;    
 
    // Retrieve the detail value:
    value = ( *acc )( *this );
    return true;
 
  }
 
  void TauTrack_v1::setDetail( TauJetParameters::TrackDetail detail, float value ){
    ( *( xAODTau::trackDetailsAccessorV3<float>( detail ) ) )( *this ) = value;    
  }
 
  // setters and getters for bdt values
  AUXSTORE_OBJECT_SETTER_AND_GETTER( TauTrack_v1,
                                     std::vector<float>,
                                     bdtScores,
                                     setBdtScores )
  
  static const SG::Accessor< std::vector<float> > bdtScoreAcc( "bdtScores" );
  
  float TauTrack_v1::bdtScore( size_t i) const {
    return bdtScoreAcc(*this).at(i);
  }
  
  //number of clusters
  size_t TauTrack_v1::nBdtScores() const{
    return bdtScoreAcc( *this ).size();
  }
  
  void TauTrack_v1::addBdtScore( const float score){
    bdtScoreAcc( *this ).push_back(score);
  }
  
  void TauTrack_v1::clearBdtScores(){
    bdtScoreAcc( *this ).clear();
  }
 
  // ----------------------------------------------------------------------------
  // setters and getters for the track link
  // ----------------------------------------------------------------------------
  AUXSTORE_OBJECT_SETTER_AND_GETTER( TauTrack_v1,
                     TauTrack_v1::TrackParticleLinks_t,
                     trackLinks,
                     setTrackLinks )
  
  static const SG::Accessor< TauTrack_v1::TrackParticleLinks_t > trackAcc( "trackLinks" );
  
  const TrackParticle* TauTrack_v1::track() const {
    return ( *trackAcc( *this )[0] );
  }
 
  void TauTrack_v1::addTrackLink( const ElementLink< TrackParticleContainer >& tr) {
    //clearTrackLinks();
    trackAcc( *this ).push_back( tr );
    return;
  }
  
  void TauTrack_v1::clearTrackLinks() {
   trackAcc( *this ).clear();
   return;
  }
 
  
 
} // namespace xAOD