#include <JetFitterTwoTrackVtxFinderTool.h>

Inheritance diagram for InDet::JetFitterTwoTrackVtxFinderTool:

Collaboration diagram for InDet::JetFitterTwoTrackVtxFinderTool:

Public Member Functions
	JetFitterTwoTrackVtxFinderTool (const std::string &t, const std::string &n, const IInterface *p)
	~JetFitterTwoTrackVtxFinderTool ()
StatusCode	initialize ()
StatusCode	finalize ()
const Trk::TwoTrackVerticesInJet *	doVertexFinding (const xAOD::Vertex &, const TLorentzVector &, std::vector< const Trk::ITrackLink * > &) const
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 ()

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
xAOD::Vertex *	computeVtxcandidate (const xAOD::Vertex &, const TLorentzVector &, const Trk::ITrackLink trackA, const Trk::ITrackLink trackB) const
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Private Attributes
ToolHandle< Trk::IVertexSeedFinder >	m_CrossDistancesSeedFinder {this,"CrossDistancesSeedFinder","Trk::CrossDistancesSeedFinder/CrossDistancesSeedFinder",""}
ToolHandle< Trk::IVertexFitter >	m_SequentialVertexFitter {this,"SequentialVertexFitter","Trk::SequentialVertexFitter/SequentialVertexFitter",""}
SG::AuxElement::Decorator< std::vector< const Trk::ITrackLink * > >	m_tracksDecorator
Gaudi::Property< double >	m_maxR {this,"ID_maxR",1150.,""}
Gaudi::Property< double >	m_maxZ {this,"ID_maxZ",2727.,""}
Gaudi::Property< double >	m_twoVertexProbabilityCut {this,"twoVertexProbabilityCut",3.4e-2,""}
Gaudi::Property< bool >	m_revertFromPositiveToNegativeTags {this,"revertFromPositiveToNegativeTags",false,""}
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

Definition at line 19 of file JetFitterTwoTrackVtxFinderTool.h.

Member Typedef Documentation

◆ StoreGateSvc_t

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

privateinherited

Definition at line 388 of file AthCommonDataStore.h.

Constructor & Destructor Documentation

◆ JetFitterTwoTrackVtxFinderTool()

JetFitterTwoTrackVtxFinderTool::JetFitterTwoTrackVtxFinderTool	(	const std::string &	t,
		const std::string &	n,
		const IInterface *	p )

Definition at line 17 of file JetFitterTwoTrackVtxFinderTool.cxx.

  : AthAlgTool(t, n, p),
    m_tracksDecorator( "VxTrackAtVertex" )
{
  declareInterface< JetFitterTwoTrackVtxFinderTool >(this);
}

◆ ~JetFitterTwoTrackVtxFinderTool()

JetFitterTwoTrackVtxFinderTool::~JetFitterTwoTrackVtxFinderTool ( )

default

Member Function Documentation

◆ computeVtxcandidate()

xAOD::Vertex * JetFitterTwoTrackVtxFinderTool::computeVtxcandidate	(	const xAOD::Vertex &	primaryVertex,
		const TLorentzVector &	jetMomentum,
		const Trk::ITrackLink *	trackA,
		const Trk::ITrackLink *	trackB ) const

private

Definition at line 84 of file JetFitterTwoTrackVtxFinderTool.cxx.

                                                                       {
  
  const Trk::TrackParameters* perigeeTrackA = trackA->parameters();
  const Trk::TrackParameters* perigeeTrackB = trackB->parameters();
 
  std::vector< const Trk::TrackParameters* > perigeeToFit;
  perigeeToFit.push_back( perigeeTrackA );
  perigeeToFit.push_back( perigeeTrackB );
 
  Amg::Vector3D seedVertex;
  try {
    seedVertex = m_CrossDistancesSeedFinder->findSeed( perigeeToFit );
 
    if ( seedVertex.perp() > m_maxR ||
         fabs( seedVertex.z() ) > m_maxZ ) {
      ATH_MSG_DEBUG( "Vertex seed outside ID. R=" << seedVertex.perp() << " Z=" << seedVertex.z() );
      seedVertex = primaryVertex.position();
    }
 
  } catch (...) {
    ATH_MSG_DEBUG( "Seed finding failed. Using primary vertex as seed... (clearly not optimal)" );
    seedVertex = Amg::Vector3D( primaryVertex.position() );
  }
 
  ATH_MSG_DEBUG( "Seed: x=" << seedVertex.x() <<
         " y=" << seedVertex.y() <<
         " z=" << seedVertex.z() );
  
 
  // Compute V0 candidate
  std::unique_ptr< xAOD::Vertex > myCandidate( m_SequentialVertexFitter->fit(perigeeToFit,seedVertex) );
 
  // Check fit completed with success
  if ( myCandidate == nullptr ) {
    ATH_MSG_DEBUG( " Sequential fit failed. shouldn't happen... Skipping V0 candidate... " );
    return nullptr;
  }
 
  // Check ChiSquared and nDof
  if ( myCandidate->chiSquared() < 0 ||
       myCandidate->numberDoF() < 0 ) {
    ATH_MSG_DEBUG( " Fit for V0 candidate failed: chi2 or ndf negative. Deleting candidate..." );
    return nullptr;
  }
 
  // Check two-vertex probability
  if ( TMath::Prob( myCandidate->chiSquared(),myCandidate->numberDoF() ) <= m_twoVertexProbabilityCut ) {
    ATH_MSG_DEBUG( " Candidate not satisfying  two-vertex probability " );
    return nullptr;
  }
 
  // Check sign and revertFromPositiveToNegativeTags
  Amg::Vector3D jetMomSpatial( jetMomentum.X(),jetMomentum.Y(),jetMomentum.Z() );
  Amg::Vector3D twoTrkVtxPos( myCandidate->position() );
  double sign = ( twoTrkVtxPos-primaryVertex.position() ).dot( jetMomSpatial );
 
  if ( sign >= 0 && m_revertFromPositiveToNegativeTags ) {
    ATH_MSG_DEBUG( "Not satisfying sign and revertFromPositiveToNegativeTags requirements" );
    return nullptr;
  }
 
  ATH_MSG_DEBUG( "  Candidate: x=" << myCandidate->x() <<
         " y=" << myCandidate->y() <<
         " z=" << myCandidate->z() );
 
  return myCandidate.release();
}

◆ 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.

95{ return m_detStore; }

AthCommonDataStore< AthCommonMsg< AlgTool > >::m_detStore

StoreGateSvc_t m_detStore

Definition AthCommonDataStore.h:393

◆ doVertexFinding()

const Trk::TwoTrackVerticesInJet * JetFitterTwoTrackVtxFinderTool::doVertexFinding	(	const xAOD::Vertex &	primaryVertex,
		const TLorentzVector &	jetMomentum,
		std::vector< const Trk::ITrackLink * > &	inputTracks ) const

Definition at line 47 of file JetFitterTwoTrackVtxFinderTool.cxx.

                                                                                                 {
 
  std::vector< const xAOD::Vertex* > VtxCandidates;
 
  ATH_MSG_DEBUG( "Looping over " << inputTracks.size() << " input tracks... " );
 
  // Loop over all the combinations
  for ( unsigned int indexA(0); indexA<inputTracks.size(); indexA++ ) {
    const Trk::ITrackLink* trackA = inputTracks.at( indexA );
 
    for ( unsigned int indexB(0); indexB<indexA; indexB++ ) {
      const Trk::ITrackLink* trackB = inputTracks.at( indexB );
      
      // Computing the Vertex candidate
      xAOD::Vertex *myCandidate = computeVtxcandidate( primaryVertex,jetMomentum,trackA,trackB );
      if ( myCandidate == nullptr ) continue;
 
      // Attaching tracks to vertex candidate
      std::vector< const Trk::ITrackLink* > associatedTracksAtVertex;
      associatedTracksAtVertex.push_back( trackA );
      associatedTracksAtVertex.push_back( trackB );
      m_tracksDecorator ( *myCandidate ) = associatedTracksAtVertex;
 
      VtxCandidates.push_back( myCandidate );
    }
  }
 
 
  ATH_MSG_DEBUG( "Found " << VtxCandidates.size() <<" 2-trk vertex candidates!" );
 
  const Trk::TwoTrackVerticesInJet *twoTrackVerticesInJet = new Trk::TwoTrackVerticesInJet ( VtxCandidates,
                                                                                             std::vector< const Trk::TrackParticleBase* >() );
  return twoTrackVerticesInJet;
}

◆ 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.

85{ return m_evtStore; }

AthCommonDataStore< AthCommonMsg< AlgTool > >::m_evtStore

StoreGateSvc_t m_evtStore

Definition AthCommonDataStore.h:390

◆ 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

◆ finalize()

StatusCode JetFitterTwoTrackVtxFinderTool::finalize ( )

Definition at line 42 of file JetFitterTwoTrackVtxFinderTool.cxx.

                                                    {
  return StatusCode::SUCCESS;
}

◆ initialize()

StatusCode JetFitterTwoTrackVtxFinderTool::initialize ( )

Definition at line 27 of file JetFitterTwoTrackVtxFinderTool.cxx.

                                                      {
 
  if ( m_CrossDistancesSeedFinder.retrieve().isFailure() ) {
    ATH_MSG_ERROR( "Cannot retrieve Trk::CrossDistancesSeedFinder/CrossDistancesSeedFinder" );
    return StatusCode::FAILURE;
  }
 
  if ( m_SequentialVertexFitter.retrieve().isFailure() ) {
    ATH_MSG_ERROR( "Cannot retrieve Trk::SequentialVertexFitter/SequentialVertexFitter" );
    return StatusCode::FAILURE;
  }
 
  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 & InDet::JetFitterTwoTrackVtxFinderTool::interfaceID ( )

inlinestatic

Definition at line 22 of file JetFitterTwoTrackVtxFinderTool.h.

                                                {
      return IID_JetFitterTwoTrackVtxFinderTool;
        }

◆ 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_CrossDistancesSeedFinder

ToolHandle< Trk::IVertexSeedFinder > InDet::JetFitterTwoTrackVtxFinderTool::m_CrossDistancesSeedFinder {this,"CrossDistancesSeedFinder","Trk::CrossDistancesSeedFinder/CrossDistancesSeedFinder",""}

private

Definition at line 44 of file JetFitterTwoTrackVtxFinderTool.h.

44{this,"CrossDistancesSeedFinder","Trk::CrossDistancesSeedFinder/CrossDistancesSeedFinder",""};

◆ 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_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_maxR

Gaudi::Property< double > InDet::JetFitterTwoTrackVtxFinderTool::m_maxR {this,"ID_maxR",1150.,""}

private

Definition at line 49 of file JetFitterTwoTrackVtxFinderTool.h.

49{this,"ID_maxR",1150.,""};

◆ m_maxZ

Gaudi::Property< double > InDet::JetFitterTwoTrackVtxFinderTool::m_maxZ {this,"ID_maxZ",2727.,""}

private

Definition at line 50 of file JetFitterTwoTrackVtxFinderTool.h.

50{this,"ID_maxZ",2727.,""};

◆ m_revertFromPositiveToNegativeTags

Gaudi::Property< bool > InDet::JetFitterTwoTrackVtxFinderTool::m_revertFromPositiveToNegativeTags {this,"revertFromPositiveToNegativeTags",false,""}

private

Definition at line 52 of file JetFitterTwoTrackVtxFinderTool.h.

52{this,"revertFromPositiveToNegativeTags",false,""};

◆ m_SequentialVertexFitter

ToolHandle< Trk::IVertexFitter > InDet::JetFitterTwoTrackVtxFinderTool::m_SequentialVertexFitter {this,"SequentialVertexFitter","Trk::SequentialVertexFitter/SequentialVertexFitter",""}

private

Definition at line 45 of file JetFitterTwoTrackVtxFinderTool.h.

45{this,"SequentialVertexFitter","Trk::SequentialVertexFitter/SequentialVertexFitter",""};

◆ m_tracksDecorator

SG::AuxElement::Decorator< std::vector< const Trk::ITrackLink* > > InDet::JetFitterTwoTrackVtxFinderTool::m_tracksDecorator

private

Definition at line 47 of file JetFitterTwoTrackVtxFinderTool.h.

◆ m_twoVertexProbabilityCut

Gaudi::Property< double > InDet::JetFitterTwoTrackVtxFinderTool::m_twoVertexProbabilityCut {this,"twoVertexProbabilityCut",3.4e-2,""}

private

Definition at line 51 of file JetFitterTwoTrackVtxFinderTool.h.

51{this,"twoVertexProbabilityCut",3.4e-2,""};

◆ 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:

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ StoreGateSvc_t

Constructor & Destructor Documentation

◆ JetFitterTwoTrackVtxFinderTool()

◆ ~JetFitterTwoTrackVtxFinderTool()

Member Function Documentation

◆ computeVtxcandidate()

◆ declareGaudiProperty()

◆ declareProperty()

◆ detStore()

◆ doVertexFinding()

◆ evtStore()

◆ extraDeps_update_handler()

◆ finalize()

◆ initialize()

◆ inputHandles()

◆ interfaceID()

◆ msg()

◆ msgLvl()

◆ outputHandles()

◆ renounce()

◆ renounceArray()

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

Member Data Documentation

◆ m_CrossDistancesSeedFinder

◆ m_detStore

◆ m_evtStore

◆ m_maxR

◆ m_maxZ

◆ m_revertFromPositiveToNegativeTags

◆ m_SequentialVertexFitter

◆ m_tracksDecorator

◆ m_twoVertexProbabilityCut

◆ m_varHandleArraysDeclared

◆ m_vhka