EMExtrapolationTools Class Reference

Tools for track extrapolation to the calorimeter. More...

#include <EMExtrapolationTools.h>

Inheritance diagram for EMExtrapolationTools:

Collaboration diagram for EMExtrapolationTools:

Public Types
enum	TrkExtrapDef { fromLastMeasurement , fromPerigee , fromPerigeeRescaled , fromCaloToPerigee }
	Enum for track extrapolation to calo. More...

Public Member Functions
	EMExtrapolationTools (const std::string &type, const std::string &name, const IInterface *parent)
	Constructor with parameters.
virtual	~EMExtrapolationTools ()=default
	Destructor.
virtual StatusCode	initialize () override final
	initialize method
virtual std::pair< std::vector< CaloSampling::CaloSample >, std::vector< std::unique_ptr< Trk::Surface > > >	getClusterLayerSurfaces (const xAOD::CaloCluster &cluster, const CaloDetDescrManager &caloDD) const override final
virtual StatusCode	getMatchAtCalo (const EventContext &ctx, const xAOD::CaloCluster &cluster, const xAOD::TrackParticle &trkPB, const std::vector< CaloSampling::CaloSample > &samples, const std::vector< std::unique_ptr< Trk::Surface > > &surfaces, std::array< double, 4 > &eta, std::array< double, 4 > &phi, std::array< double, 4 > &deltaEta, std::array< double, 4 > &deltaPhi, unsigned int extrapFrom=fromPerigee) const override final
	get eta, phi, deltaEta, and deltaPhi at the four calorimeter layers given the Trk::ParametersBase.
virtual bool	matchesAtCalo (const xAOD::CaloCluster *cluster, const xAOD::Vertex *vertex, float etaAtCalo, float phiAtCalo) const override final
	test for vertex-to-cluster match given also the positions at the calorimeter from the vertex extrapolation
virtual bool	getEtaPhiAtCalo (const EventContext &ctx, const xAOD::Vertex *vertex, float *etaAtCalo, float *phiAtCalo) const override final
	get eta, phi at EM2 given a vertex which is converted to NeutralParameters.
virtual bool	getEtaPhiAtCalo (const EventContext &ctx, const Trk::TrackParameters *trkPar, float *etaAtCalo, float *phiAtCalo) const override final
	get eta, phi at EM2 given NeutralParameters.
Amg::Vector3D	getMomentumAtVertex (const EventContext &ctx, const xAOD::Vertex &, unsigned int) const override final
	get the momentum of the i-th trackParticle assiciated to the vertex at vertex (designed for conversions)
Amg::Vector3D	getMomentumAtVertex (const EventContext &ctx, const xAOD::Vertex &, bool reuse=true) const override final
	get sum of the momenta at the vertex (designed for conversions).
ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.
const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.
virtual StatusCode	sysInitialize () override
	Perform system initialization for an algorithm.
virtual StatusCode	sysStart () override
	Handle START transition.
virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles.
virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles.
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Property< T, V, H > &t)
void	updateVHKA (Gaudi::Details::PropertyBase &)
MsgStream &	msg () const
bool	msgLvl (const MSG::Level lvl) const

Static Public Member Functions
static const InterfaceID &	interfaceID ()
	AlgTool interface methods.

Protected Member Functions
void	renounceArray (SG::VarHandleKeyArray &handlesArray)
	remove all handles from I/O resolution
std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void >	renounce (T &h)
void	extraDeps_update_handler (Gaudi::Details::PropertyBase &ExtraDeps)
	Add StoreName to extra input/output deps as needed.

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
int	getTRTsection (const xAOD::TrackParticle *trkPB) const
	Return +/- 1 (2) if track is in positive/negative TRT barrel (endcap)
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Private Attributes
ToolHandle< Trk::IParticleCaloExtensionTool >	m_ParticleCaloExtensionTool
	Used for extrapolation to the calo.
ToolHandle< Trk::IExtrapolator >	m_extrapolator
	Used for extrapolation to the conversion vertex.
Gaudi::Property< double >	m_narrowDeltaPhi { this, "NarrowDeltaPhi", 0.05 }
Gaudi::Property< double >	m_narrowDeltaPhiTRTbarrel
Gaudi::Property< double >	m_narrowDeltaPhiTRTendcap
Gaudi::Property< double >	m_narrowDeltaEta { this, "NarrowDeltaEta", 0.05 }
Gaudi::Property< double >	m_TRTbarrelDeltaEta
Gaudi::Property< double >	m_TRTendcapDeltaEta { this, "TRTendcapDeltaEta", 0.2 }
const TRT_ID *	m_trtId
Gaudi::Property< bool >	m_enableTRT { this, "EnableTRT", true }
StoreGateSvc_t	m_evtStore
	Pointer to StoreGate (event store by default)
StoreGateSvc_t	m_detStore
	Pointer to StoreGate (detector store by default)
std::vector< SG::VarHandleKeyArray * >	m_vhka
bool	m_varHandleArraysDeclared

Detailed Description

Tools for track extrapolation to the calorimeter.

Author

Thomas Koffas, Christos Anastopoulos

Definition at line 44 of file EMExtrapolationTools.h.

Member Typedef Documentation

StoreGateSvc_t

typedef ServiceHandle<StoreGateSvc> AthCommonDataStore< AthCommonMsg< AlgTool > >::StoreGateSvc_t

privateinherited

Definition at line 388 of file AthCommonDataStore.h.

Member Enumeration Documentation

TrkExtrapDef

enum IEMExtrapolationTools::TrkExtrapDef

inherited

Enum for track extrapolation to calo.

Enumerator
fromLastMeasurement	from the last measurement of TrackParticle
fromPerigee	from the perigee of TrackParticle
fromPerigeeRescaled	from the perigee of TrackParticle recaled by Ecluster
fromCaloToPerigee	from the calo to the perigee - fast extrapolation

Definition at line 32 of file IEMExtrapolationTools.h.

  {
    fromLastMeasurement,
    fromPerigee,
    fromPerigeeRescaled,
    fromCaloToPerigee
  };

Constructor & Destructor Documentation

EMExtrapolationTools()

EMExtrapolationTools::EMExtrapolationTools	(	const std::string &	type,
		const std::string &	name,
		const IInterface *	parent )

Constructor with parameters.

Definition at line 61 of file EMExtrapolationTools.cxx.

  : AthAlgTool(type, name, parent)
  , m_trtId(nullptr)
{
  declareInterface<IEMExtrapolationTools>(this);
}

~EMExtrapolationTools()

virtual EMExtrapolationTools::~EMExtrapolationTools ( )

virtualdefault

Destructor.

Member Function Documentation

declareGaudiProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty ( Gaudi::Property< T, V, H > & hndl, const SG::VarHandleKeyType &  )

inlineprivateinherited

specialization for handling Gaudi::Property<SG::VarHandleKey>

Definition at line 156 of file AthCommonDataStore.h.

  {
    return *AthCommonDataStore<PBASE>::declareProperty(hndl.name(),
                                                       hndl.value(), 
                                                       hndl.documentation());
 
  }

declareProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty ( Gaudi::Property< T, V, H > & t )

inlineinherited

Definition at line 145 of file AthCommonDataStore.h.

                                                                     {
    typedef typename SG::HandleClassifier<T>::type htype;
    return AthCommonDataStore<PBASE>::declareGaudiProperty(t, htype());
  }

detStore()

const ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< AlgTool > >::detStore ( ) const

inlineinherited

The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 95 of file AthCommonDataStore.h.

{ return m_detStore; }

evtStore()

ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< AlgTool > >::evtStore ( )

inlineinherited

The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 85 of file AthCommonDataStore.h.

{ return m_evtStore; }

extraDeps_update_handler()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::extraDeps_update_handler ( Gaudi::Details::PropertyBase & ExtraDeps )

protectedinherited

Add StoreName to extra input/output deps as needed.

use the logic of the VarHandleKey to parse the DataObjID keys supplied via the ExtraInputs and ExtraOuputs Properties to add the StoreName if it's not explicitly given

getClusterLayerSurfaces()

std::pair< std::vector< CaloSampling::CaloSample >, std::vector< std::unique_ptr< Trk::Surface > > > EMExtrapolationTools::getClusterLayerSurfaces ( const xAOD::CaloCluster & cluster, const CaloDetDescrManager & caloDD ) const

finaloverridevirtual

Implements IEMExtrapolationTools.

Definition at line 96 of file EMExtrapolationTools.cxx.

{
  // figure which layer we need
  // based on the where most of the energy of the cluster
  // is we might want to do EM barrel, EM endCap
  // or forward calo layers/samplings
  constexpr std::array<CaloSampling::CaloSample, 4> barrelLayers = {
    CaloSampling::PreSamplerB,
    CaloSampling::EMB1,
    CaloSampling::EMB2,
    CaloSampling::EMB3
  };
  constexpr std::array<CaloSampling::CaloSample, 4> endcapLayers = {
    CaloSampling::PreSamplerE,
    CaloSampling::EME1,
    CaloSampling::EME2,
    CaloSampling::EME3
  };
  constexpr std::array<CaloSampling::CaloSample, 4> endcapLayersAboveEta2p5 = {
    CaloSampling::EME2,
    CaloSampling::EME3
  };
  constexpr std::array<CaloSampling::CaloSample, 1> forwardLayers = {
    CaloSampling::FCAL0,
  };
 
  std::vector<CaloSampling::CaloSample> clusterLayers;
  clusterLayers.reserve(4);
 
  if (cluster.inBarrel() && (!cluster.inEndcap() || 
                             cluster.eSample(CaloSampling::EMB2) >=
                             cluster.eSample(CaloSampling::EME2))) {
      getClusterLayers(barrelLayers, clusterLayers, cluster);
  }
  else if (cluster.eSample(CaloSampling::EME2) >
           cluster.eSample(CaloSampling::FCAL0)) {
    if(std::abs(cluster.eta()) < 2.5){
      getClusterLayers(endcapLayers, clusterLayers, cluster);
    }
    else {
      getClusterLayers(endcapLayersAboveEta2p5, clusterLayers, cluster);
    }
  }
  else {
    getClusterLayers(forwardLayers, clusterLayers, cluster);
  }
 
  std::vector<std::unique_ptr<Trk::Surface>> caloSurfaces =
    m_ParticleCaloExtensionTool->caloSurfacesFromLayers(
      clusterLayers, cluster.eta(), caloDD);
 
  return { std::move(clusterLayers), std::move(caloSurfaces) };
}

getEtaPhiAtCalo() [1/2]

bool EMExtrapolationTools::getEtaPhiAtCalo ( const EventContext & ctx, const Trk::TrackParameters * trkPar, float * etaAtCalo, float * phiAtCalo ) const

finaloverridevirtual

get eta, phi at EM2 given NeutralParameters.

Return false if the extrapolation fails

Implements IEMExtrapolationTools.

Definition at line 357 of file EMExtrapolationTools.cxx.

{
  if (!trkPar)
    return false;
  CaloExtensionHelpers::LayersToSelect layersToSelect;
  if (fabs(trkPar->eta()) < 1.425) {
    // Barrel
    layersToSelect.insert(CaloSampling::EMB2);
  } else {
    // Endcap
    layersToSelect.insert(CaloSampling::EME2);
  }
 
  std::unique_ptr<Trk::CaloExtension> extension = nullptr;
  extension = m_ParticleCaloExtensionTool->caloExtension(
    ctx, *trkPar, Trk::alongMomentum, Trk::muon);
  if (!extension) {
    ATH_MSG_WARNING("Could not create an extension from getEtaPhiAtCalo ");
    return false;
  }
  CaloExtensionHelpers::EtaPhiPerLayerVector intersections;
  CaloExtensionHelpers::midPointEtaPhiPerLayerVector(
    *extension, intersections, &layersToSelect);
  bool hitEM2(false);
  for (const auto& p : intersections) {
    int i(0);
    auto sample = std::get<0>(p);
    if ((sample == CaloSampling::EME2 || sample == CaloSampling::EMB2)) {
      *etaAtCalo = std::get<1>(p);
      *phiAtCalo = std::get<2>(p);
      hitEM2 = true;
      ++i;
      ATH_MSG_DEBUG("getMatchAtCalo: i, eta, phi : "
                    << i << " " << std::get<1>(p) << " " << std::get<2>(p));
    }
  }
  return hitEM2;
}

getEtaPhiAtCalo() [2/2]

bool EMExtrapolationTools::getEtaPhiAtCalo ( const EventContext & ctx, const xAOD::Vertex * vertex, float * etaAtCalo, float * phiAtCalo ) const

finaloverridevirtual

get eta, phi at EM2 given a vertex which is converted to NeutralParameters.

Return false if the extrapolation fails

Implements IEMExtrapolationTools.

Definition at line 332 of file EMExtrapolationTools.cxx.

{
  if (!vertex) {
    return false;
  }
  Amg::Vector3D momentum = getMomentumAtVertex(ctx, *vertex);
  if (momentum.mag() < 1e-5) {
    ATH_MSG_DEBUG("Intersection failed");
    return false;
  }
  /*
   * Create high pt track parameters to mimic a neutral particle.
   * This in principle is an approximation
   */
  Trk::PerigeeSurface surface(vertex->position());
  Trk::Perigee trkPar(
    vertex->position(), momentum.unit() * 1.e10, +1, surface, std::nullopt);
  bool success = getEtaPhiAtCalo(ctx, &trkPar, etaAtCalo, phiAtCalo);
  return success;
}

getMatchAtCalo()

StatusCode EMExtrapolationTools::getMatchAtCalo ( const EventContext & ctx, const xAOD::CaloCluster & cluster, const xAOD::TrackParticle & trkPB, const std::vector< CaloSampling::CaloSample > & samples, const std::vector< std::unique_ptr< Trk::Surface > > & surfaces, std::array< double, 4 > & eta, std::array< double, 4 > & phi, std::array< double, 4 > & deltaEta, std::array< double, 4 > & deltaPhi, unsigned int extrapFrom = fromPerigee ) const

finaloverridevirtual

get eta, phi, deltaEta, and deltaPhi at the four calorimeter layers given the Trk::ParametersBase.

Implements IEMExtrapolationTools.

Definition at line 157 of file EMExtrapolationTools.cxx.

{
  /* Extrapolate track to calo and return
   * the extrapolated eta/phi and
   * the deta/dphi between cluster and track
   * We allow different ways to extrapolate:
   * 1) from the last measurement  track parameters (this is always the case for
   * TRT standalone)
   * 2) from the perigee track parameters
   * 3) from the perigee
   * with the track momentum rescaled by the cluster energy
   */
  if (cluster.e() < 10 && trkPB.pt() < 10) { // This is 10 MeV
    ATH_MSG_WARNING("Too small cluster E :"
                    << cluster.e() << " , or too small track pt" << trkPB.pt());
    return StatusCode::FAILURE;
  }
 
  bool didExtension = false;
  CaloExtensionHelpers::EtaPhiPerLayerVector intersections;
  intersections.reserve(samples.size());
 
  switch (extrapFrom) {
    case fromPerigeeRescaled: {
      Trk::Perigee trkPar = getRescaledPerigee(trkPB, cluster);
      const auto extension = m_ParticleCaloExtensionTool->surfaceCaloExtension(
        ctx, trkPar, samples, surfaces, Trk::nonInteracting);
      didExtension = !extension.empty();
      for (const auto& i : extension) {
        intersections.emplace_back(
          i.first, i.second->position().eta(), i.second->position().phi());
      }
    } break;
 
    case fromPerigee: {
      const auto extension = m_ParticleCaloExtensionTool->surfaceCaloExtension(
        ctx, trkPB.perigeeParameters(), samples, surfaces, Trk::nonInteracting);
      didExtension = !extension.empty();
      for (const auto& i : extension) {
        intersections.emplace_back(
          i.first, i.second->position().eta(), i.second->position().phi());
      }
    } break;
 
    case fromLastMeasurement: {
      unsigned int index(0);
      if (trkPB.indexOfParameterAtPosition(index, xAOD::LastMeasurement)) {
        const Trk::CurvilinearParameters& lastParams =
          trkPB.curvilinearParameters(index);
        const Amg::Vector3D& position = lastParams.position();
        // Calo entry around z EME1 3750  and r  EMB1 1550
        if (position.perp() > 1550. || std::abs(position.z()) > 3750.) {
          ATH_MSG_WARNING("Probematic last parameters : " << lastParams);
          didExtension = false;
        } else {
          const auto extension =
            m_ParticleCaloExtensionTool->surfaceCaloExtension(
              ctx, lastParams, samples, surfaces, Trk::nonInteracting);
          didExtension = !extension.empty();
          for (const auto& i : extension) {
            intersections.emplace_back(
              i.first, i.second->position().eta(), i.second->position().phi());
          }
        }
      }
    } break;
 
    default: {
      ATH_MSG_ERROR("Invalid ExtrapolateFrom " << extrapFrom);
    }
  }
  /*
   * Given the extension calculate the deta/dphi for the layers
   */
  if (!didExtension) {
    ATH_MSG_DEBUG("Could not create an extension from "
                  << extrapFrom << " for a track with : "
                  << " Track Pt " << trkPB.pt() << " Track Eta " << trkPB.eta()
                  << " Track Phi " << trkPB.phi() << " Track Fitter "
                  << trkPB.trackFitter());
    return StatusCode::FAILURE;
  }
  // Negative tracks bend to the positive direction.
  // flip sign for positive ones
  const bool flipSign = trkPB.charge() > 0;
 
  for (const auto& p : intersections) {
    int i(0);
    CaloSampling::CaloSample sample = std::get<0>(p);
    if (sample == CaloSampling::PreSamplerE ||
        sample == CaloSampling::PreSamplerB) {
      i = 0;
    } else if (sample == CaloSampling::EME1 || sample == CaloSampling::EMB1) {
      i = 1;
    } else if (sample == CaloSampling::EME2 || sample == CaloSampling::EMB2 || sample == CaloSampling::FCAL0) {
      i = 2;
    } else if (sample == CaloSampling::EME3 || sample == CaloSampling::EMB3) {
      i = 3;
    } else {
      continue;
    }
    eta[i] = std::get<1>(p);
    phi[i] = std::get<2>(p);
    deltaEta[i] = cluster.etaSample(sample) - std::get<1>(p);
    deltaPhi[i] =
      P4Helpers::deltaPhi(cluster.phiSample(sample), std::get<2>(p));
    // Should we flip the sign for deltaPhi?
    if (flipSign) {
      deltaPhi[i] = -deltaPhi[i];
    }
    ATH_MSG_DEBUG("getMatchAtCalo: i, eta, phi, deta, dphi: "
                  << i << " " << eta[i] << " " << phi[i] << " " << deltaEta[i]
                  << " " << deltaPhi[i]);
  }
  return StatusCode::SUCCESS;
}

getMomentumAtVertex() [1/2]

Amg::Vector3D EMExtrapolationTools::getMomentumAtVertex ( const EventContext & ctx, const xAOD::Vertex & vertex, bool reuse = true ) const

finaloverridevirtual

get sum of the momenta at the vertex (designed for conversions).

Retrieve from auxdata if available and <reuse> is true

Implements IEMExtrapolationTools.

Definition at line 454 of file EMExtrapolationTools.cxx.

{
  Amg::Vector3D momentum(0., 0., 0.);
  const static SG::AuxElement::Accessor<float> accPx("px");
  const static SG::AuxElement::Accessor<float> accPy("py");
  const static SG::AuxElement::Accessor<float> accPz("pz");
  if (vertex.nTrackParticles() == 0) {
    ATH_MSG_WARNING("getMomentumAtVertex : vertex has no track particles!");
    return momentum;
  }
  if (reuse && accPx.isAvailable(vertex) && accPy.isAvailable(vertex) &&
      accPz.isAvailable(vertex)) {
    // Already decorated with parameters at vertex
    ATH_MSG_DEBUG("getMomentumAtVertex : getting from auxdata");
    return { accPx(vertex), accPy(vertex), accPz(vertex) };
  }
  for (unsigned int i = 0; i < vertex.nTrackParticles(); ++i) {
    momentum += getMomentumAtVertex(ctx, vertex, i);
  }
 
  return momentum;
}

getMomentumAtVertex() [2/2]

Amg::Vector3D EMExtrapolationTools::getMomentumAtVertex ( const EventContext & ctx, const xAOD::Vertex & vertex, unsigned int index ) const

finaloverridevirtual

get the momentum of the i-th trackParticle assiciated to the vertex at vertex (designed for conversions)

Implements IEMExtrapolationTools.

Definition at line 401 of file EMExtrapolationTools.cxx.

{
  Amg::Vector3D momentum(0., 0., 0.);
  if (vertex.nTrackParticles() <= index) {
    ATH_MSG_WARNING("Invalid track index");
  } else if (vertex.vxTrackAtVertexAvailable() &&
             !vertex.vxTrackAtVertex().empty()) {
    // Use the parameters at the vertex
    // (the tracks should be parallel but we will do the sum anyway)
    ATH_MSG_DEBUG("getMomentumAtVertex : getting from vxTrackAtVertex");
    const auto& trkAtVertex = vertex.vxTrackAtVertex()[index];
    const Trk::TrackParameters* paramAtVertex = trkAtVertex.perigeeAtVertex();
    if (!paramAtVertex) {
      ATH_MSG_WARNING("VxTrackAtVertex does not have perigee at vertex");
    } else {
      return paramAtVertex->momentum();
    }
  } else if (vertex.nTrackParticles() == 1) {
    // Use the first measurement
    ATH_MSG_DEBUG(
      "getMomentumAtVertex : 1 track only, getting from first measurement");
    const xAOD::TrackParticle* tp = vertex.trackParticle(0);
    unsigned int paramindex(0);
    if (!tp ||
        !tp->indexOfParameterAtPosition(paramindex, xAOD::FirstMeasurement)) {
      ATH_MSG_WARNING("No TrackParticle or no have first measurement");
    } else {
      momentum += tp->curvilinearParameters(paramindex).momentum();
    }
  } else {
    // Extrapolate track particle to vertex
    ATH_MSG_DEBUG("getMomentumAtVertex : extrapolating to perigee surface");
    const xAOD::TrackParticle* tp = vertex.trackParticle(index);
    if (!tp) {
      ATH_MSG_WARNING("NULL pointer to TrackParticle in vertex");
    } else {
      Trk::PerigeeSurface surface(vertex.position());
      std::unique_ptr<const Trk::TrackParameters> params =
          m_extrapolator->extrapolate(ctx, tp->perigeeParameters(), surface,
                                      Trk::alongMomentum);
      if (!params) {
        ATH_MSG_DEBUG("Extrapolation to vertex (perigee) failed");
      } else {
        momentum += params->momentum();
      }
    }
  }
  return momentum;
}

getTRTsection()

int EMExtrapolationTools::getTRTsection ( const xAOD::TrackParticle * trkPB ) const

private

Return +/- 1 (2) if track is in positive/negative TRT barrel (endcap)

Definition at line 482 of file EMExtrapolationTools.cxx.

{
  if (!trkPB) {
    ATH_MSG_DEBUG("Null pointer to TrackParticle");
    return 0;
  }
  if (!m_trtId) {
    ATH_MSG_DEBUG(
      "No trt ID guessing TRT section based on eta: " << trkPB->eta());
    return (trkPB->eta() > 0 ? 1 : -1) * (fabs(trkPB->eta()) < 0.6 ? 1 : 2);
  }
  const Trk::MeasurementBase* trkPar = nullptr;
  if (trkPB->trackLink().isValid() && trkPB->track() != nullptr) {
    ATH_MSG_DEBUG("Will get TrackParameters from Trk::Track");
    const Trk::TrackStates* trackStates =
      trkPB->track()->trackStateOnSurfaces();
    if (!trackStates) {
      ATH_MSG_WARNING("NULL pointer to trackStateOnSurfaces");
      return 0;
    }
    // Loop over the TrkStateOnSurfaces search last valid TSOS first
    for (Trk::TrackStates::const_reverse_iterator
           rItTSoS = trackStates->rbegin();
         rItTSoS != trackStates->rend();
         ++rItTSoS) {
      if ((*rItTSoS)->type(Trk::TrackStateOnSurface::Measurement) &&
          !((*rItTSoS)->type(Trk::TrackStateOnSurface::Outlier)) &&
          (*rItTSoS)->measurementOnTrack() != nullptr &&
          !((*rItTSoS)->measurementOnTrack()->type(
            Trk::MeasurementBaseType::PseudoMeasurementOnTrack))) {
        trkPar = (*rItTSoS)->measurementOnTrack();
        break;
      }
    }
  } else {
    ATH_MSG_WARNING("Track particle without Trk::Track");
  }
  if (!trkPar) {
    return 0;
  }
  const Trk::Surface& sf = trkPar->associatedSurface();
  const Identifier tid = sf.associatedDetectorElementIdentifier();
  return m_trtId->barrel_ec(tid);
}

initialize()

StatusCode EMExtrapolationTools::initialize ( )

finaloverridevirtual

initialize method

Implements IEMExtrapolationTools.

Definition at line 71 of file EMExtrapolationTools.cxx.

{
 
  ATH_MSG_DEBUG("Initializing " << name() << "...");
  // Retrieve tools
  ATH_CHECK(m_ParticleCaloExtensionTool.retrieve());
  ATH_CHECK(m_extrapolator.retrieve());
 
  // retrieve TRT-ID helper
  if (m_enableTRT && detStore()->contains<TRT_ID>("TRT_ID")) {
    StatusCode sc = detStore()->retrieve(m_trtId, "TRT_ID");
    if (sc.isFailure() || !m_trtId->is_valid()) {
      // TRT is not present for sLHC
      ATH_MSG_DEBUG("Could not get TRT_ID helper !");
      m_trtId = nullptr;
    }
    ATH_MSG_DEBUG("m_trtId initialization successful");
  } else {
    ATH_MSG_DEBUG("Could not get TRT_ID helper !");
  }
  return StatusCode::SUCCESS;
}

inputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< AlgTool > >::inputHandles ( ) const

overridevirtualinherited

Return this algorithm's input handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

interfaceID()

const InterfaceID & IEMExtrapolationTools::interfaceID ( )

inlinestaticinherited

AlgTool interface methods.

Definition at line 108 of file IEMExtrapolationTools.h.

{
  return IID_IEMExtrapolationTools;
}

matchesAtCalo()

bool EMExtrapolationTools::matchesAtCalo ( const xAOD::CaloCluster * cluster, const xAOD::Vertex * vertex, float etaAtCalo, float phiAtCalo ) const

finaloverridevirtual

test for vertex-to-cluster match given also the positions at the calorimeter from the vertex extrapolation

Implements IEMExtrapolationTools.

Definition at line 290 of file EMExtrapolationTools.cxx.

{
  if (!cluster || !vertex) {
    return false;
  }
  float deltaEta = fabs(etaAtCalo - cluster->etaBE(2));
  float deltaPhi = fabs(P4Helpers::deltaPhi(cluster->phi(), phiAtCalo));
 
  int TRTsection = 0;
  if (xAOD::EgammaHelpers::numberOfSiTracks(vertex) == 0)
    TRTsection = getTRTsection(vertex->trackParticle(0));
 
  // First pass on TRT tracks, skip barrel tracks matching endcap clusters and
  // vice-versa
  if ((TRTsection == 2 && (cluster->eta() <= 0.6 || cluster->eta() >= 2.4)) ||
      (TRTsection == -2 &&
       (cluster->eta() >= -0.6 || cluster->eta() <= -2.4)) ||
      (TRTsection == 1 && (cluster->eta() <= -0.1 || cluster->eta() >= 1.3)) ||
      (TRTsection == -1 && (cluster->eta() >= 0.1 || cluster->eta() <= -1.3))) {
    return false;
  }
 
  // The maximum deltaEta/deltaPhi for Si, TRT barrel, TRT endcap
  static const std::vector<double> dEtaV{ m_narrowDeltaEta,
                                          m_TRTbarrelDeltaEta,
                                          m_TRTendcapDeltaEta };
  static const std::vector<double> dPhiV{ m_narrowDeltaPhi,
                                          m_narrowDeltaPhiTRTbarrel,
                                          m_narrowDeltaPhiTRTendcap };
 
  return (deltaEta < dEtaV[abs(TRTsection)] &&
          deltaPhi < dPhiV[abs(TRTsection)]);
}

msg()

MsgStream & AthCommonMsg< AlgTool >::msg ( ) const

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

msgLvl()

bool AthCommonMsg< AlgTool >::msgLvl ( const MSG::Level lvl ) const

inlineinherited

Definition at line 30 of file AthCommonMsg.h.

                                               {
    return this->msgLevel(lvl);
  }

outputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< AlgTool > >::outputHandles ( ) const

overridevirtualinherited

Return this algorithm's output handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

renounce()

std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void > AthCommonDataStore< AthCommonMsg< AlgTool > >::renounce ( T & h )

inlineprotectedinherited

Definition at line 380 of file AthCommonDataStore.h.

  {
    h.renounce();
    PBASE::renounce (h);
  }

renounceArray()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::renounceArray ( SG::VarHandleKeyArray & handlesArray )

inlineprotectedinherited

remove all handles from I/O resolution

Definition at line 364 of file AthCommonDataStore.h.

                                                          {
    handlesArray.renounce();
  }

sysInitialize()

virtual StatusCode AthCommonDataStore< AthCommonMsg< AlgTool > >::sysInitialize ( )

overridevirtualinherited

Perform system initialization for an algorithm.

We override this to declare all the elements of handle key arrays at the end of initialization. See comments on updateVHKA.

Reimplemented in asg::AsgMetadataTool, AthCheckedComponent< AthAlgTool >, AthCheckedComponent<::AthAlgTool >, and DerivationFramework::CfAthAlgTool.

sysStart()

virtual StatusCode AthCommonDataStore< AthCommonMsg< AlgTool > >::sysStart ( )

overridevirtualinherited

Handle START transition.

We override this in order to make sure that conditions handle keys can cache a pointer to the conditions container.

updateVHKA()

void AthCommonDataStore< AthCommonMsg< AlgTool > >::updateVHKA ( Gaudi::Details::PropertyBase & )

inlineinherited

Definition at line 308 of file AthCommonDataStore.h.

                                               {
    // debug() << "updateVHKA for property " << p.name() << " " << p.toString() 
    //         << "  size: " << m_vhka.size() << endmsg;
    for (auto &a : m_vhka) {
      std::vector<SG::VarHandleKey*> keys = a->keys();
      for (auto k : keys) {
        k->setOwner(this);
      }
    }
  }

Member Data Documentation

m_detStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_detStore

privateinherited

Pointer to StoreGate (detector store by default)

Definition at line 393 of file AthCommonDataStore.h.

m_enableTRT

Gaudi::Property<bool> EMExtrapolationTools::m_enableTRT { this, "EnableTRT", true }

private

Definition at line 147 of file EMExtrapolationTools.h.

{ this, "EnableTRT", true };

m_evtStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< AlgTool > >::m_evtStore

privateinherited

Pointer to StoreGate (event store by default)

Definition at line 390 of file AthCommonDataStore.h.

m_extrapolator

ToolHandle<Trk::IExtrapolator> EMExtrapolationTools::m_extrapolator

private

Initial value:

{
    this,
    "Extrapolator",
    "Trk::Extrapolator/AtlasExtrapolator"
  }

Used for extrapolation to the conversion vertex.

Definition at line 125 of file EMExtrapolationTools.h.

                                             {
    this,
    "Extrapolator",
    "Trk::Extrapolator/AtlasExtrapolator"
  };

m_narrowDeltaEta

Gaudi::Property<double> EMExtrapolationTools::m_narrowDeltaEta { this, "NarrowDeltaEta", 0.05 }

private

Definition at line 139 of file EMExtrapolationTools.h.

{ this, "NarrowDeltaEta", 0.05 };

m_narrowDeltaPhi

Gaudi::Property<double> EMExtrapolationTools::m_narrowDeltaPhi { this, "NarrowDeltaPhi", 0.05 }

private

Definition at line 132 of file EMExtrapolationTools.h.

{ this, "NarrowDeltaPhi", 0.05 };

m_narrowDeltaPhiTRTbarrel

Gaudi::Property<double> EMExtrapolationTools::m_narrowDeltaPhiTRTbarrel

private

Initial value:

{ this,
                                                     "NarrowDeltaPhiTRTbarrel",
                                                     0.02 }

Definition at line 133 of file EMExtrapolationTools.h.

                                                 { this,
                                                     "NarrowDeltaPhiTRTbarrel",
                                                     0.02 };

m_narrowDeltaPhiTRTendcap

Gaudi::Property<double> EMExtrapolationTools::m_narrowDeltaPhiTRTendcap

private

Initial value:

{ this,
                                                     "NarrowDeltaPhiTRTendcap",
                                                     0.02 }

Definition at line 136 of file EMExtrapolationTools.h.

                                                 { this,
                                                     "NarrowDeltaPhiTRTendcap",
                                                     0.02 };

m_ParticleCaloExtensionTool

ToolHandle<Trk::IParticleCaloExtensionTool> EMExtrapolationTools::m_ParticleCaloExtensionTool

private

Initial value:

{
    this,
    "CaloExtensionTool",
    "Trk::ParticleCaloExtensionTool/EMParticleCaloExtensionTool"
  }

Used for extrapolation to the calo.

Definition at line 118 of file EMExtrapolationTools.h.

                                                                       {
    this,
    "CaloExtensionTool",
    "Trk::ParticleCaloExtensionTool/EMParticleCaloExtensionTool"
  };

m_TRTbarrelDeltaEta

Gaudi::Property<double> EMExtrapolationTools::m_TRTbarrelDeltaEta

private

Initial value:

{ this,
                                               "TRTbarrelDeltaEta",
                                               0.35 }

Definition at line 140 of file EMExtrapolationTools.h.

                                           { this,
                                               "TRTbarrelDeltaEta",
                                               0.35 };

m_TRTendcapDeltaEta

Gaudi::Property<double> EMExtrapolationTools::m_TRTendcapDeltaEta { this, "TRTendcapDeltaEta", 0.2 }

private

Definition at line 143 of file EMExtrapolationTools.h.

{ this, "TRTendcapDeltaEta", 0.2 };

m_trtId

const TRT_ID* EMExtrapolationTools::m_trtId

private

Definition at line 146 of file EMExtrapolationTools.h.

m_varHandleArraysDeclared

bool AthCommonDataStore< AthCommonMsg< AlgTool > >::m_varHandleArraysDeclared

privateinherited

Definition at line 399 of file AthCommonDataStore.h.

m_vhka

std::vector<SG::VarHandleKeyArray*> AthCommonDataStore< AthCommonMsg< AlgTool > >::m_vhka

privateinherited

Definition at line 398 of file AthCommonDataStore.h.

---

The documentation for this class was generated from the following files:

• EMExtrapolationTools.h
• EMExtrapolationTools.cxx