#include <MuSAVtxFitterTool.h>

Inheritance diagram for Rec::MuSAVtxFitterTool:

Collaboration diagram for Rec::MuSAVtxFitterTool:

Classes
struct	WrkVrt
	Represents a working vertex structure used in VKalVrt fitting. More...

Public Member Functions
	MuSAVtxFitterTool (const std::string &type, const std::string &name, const IInterface *parent)

	~MuSAVtxFitterTool ()

virtual StatusCode	initialize () override

std::unique_ptr< xAOD::TrackParticle >	extrapolateMuSA (const xAOD::TrackParticle &trk, const xAOD::EventInfo &eventInfo, const EventContext &ctx) const

StatusCode	doMuSAVtxFit (std::vector< MuSAVtxFitterTool::WrkVrt > &workVerticesContainer, const xAOD::MuonContainer &muonContainer, const xAOD::EventInfo &eventInfo, const EventContext &ctx) const

StatusCode	doPostFitSelections (std::vector< MuSAVtxFitterTool::WrkVrt > &workVerticesContainer) const

StatusCode	selectBestVertices (std::vector< MuSAVtxFitterTool::WrkVrt > &workVerticesContainer) const

ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard `StoreGateSvc` (event store) Returns (kind of) a pointer to the `StoreGateSvc`. More...

const ServiceHandle< StoreGateSvc > &	evtStore () const
	The standard `StoreGateSvc` (event store) Returns (kind of) a pointer to the `StoreGateSvc`. More...

const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard `StoreGateSvc/DetectorStore` Returns (kind of) a pointer to the `StoreGateSvc`. More...

virtual StatusCode	sysInitialize () override
	Perform system initialization for an algorithm. More...

virtual StatusCode	sysStart () override
	Handle START transition. More...

virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles. More...

virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles. More...

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

Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, SG::VarHandleKey &hndl, const std::string &doc, const SG::VarHandleKeyType &)
	Declare a new Gaudi property. More...

Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, SG::VarHandleBase &hndl, const std::string &doc, const SG::VarHandleType &)
	Declare a new Gaudi property. More...

Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, SG::VarHandleKeyArray &hndArr, const std::string &doc, const SG::VarHandleKeyArrayType &)

Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, T &property, const std::string &doc, const SG::NotHandleType &)
	Declare a new Gaudi property. More...

Gaudi::Details::PropertyBase *	declareProperty (const std::string &name, T &property, const std::string &doc="none")
	Declare a new Gaudi property. More...

void	updateVHKA (Gaudi::Details::PropertyBase &)

MsgStream &	msg () const

MsgStream &	msg (const MSG::Level lvl) 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 More...

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. More...

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey> More...

Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyArrayType &)
	specialization for handling Gaudi::Property<SG::VarHandleKeyArray> More...

Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleType &)
	specialization for handling Gaudi::Property<SG::VarHandleBase> More...

Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &t, const SG::NotHandleType &)
	specialization for handling everything that's not a Gaudi::Property<SG::VarHandleKey> or a <SG::VarHandleKeyArray> More...

Private Attributes
ToolHandle< Trk::ITrkVKalVrtFitter >	m_vertexFitter

ToolHandle< Trk::IExtrapolator >	m_extrapolator

DoubleProperty	m_etaCutMSTP {this, "etaCutMSTP", 2.5, "Maximum \|eta\| of input MSTPs"}

DoubleProperty	m_baseChi2Cut {this, "baseChi2Cut", 50., "Maximum allowed chi2 of saved vertices"}

Gaudi::Property< bool >	m_doValidation {this, "doValidation", false, "Vertex every MSTP in input as part of validation process"}

StoreGateSvc_t	m_evtStore
	Pointer to StoreGate (event store by default) More...

StoreGateSvc_t	m_detStore
	Pointer to StoreGate (detector store by default) More...

std::vector< SG::VarHandleKeyArray * >	m_vhka

bool	m_varHandleArraysDeclared

Detailed Description

Definition at line 23 of file MuSAVtxFitterTool.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

◆ MuSAVtxFitterTool()

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

Definition at line 19 of file MuSAVtxFitterTool.cxx.

                                                                                                            :
     AthAlgTool(type, name, parent)
 {
   declareInterface<MuSAVtxFitterTool>(this);
 }

◆ ~MuSAVtxFitterTool()

Rec::MuSAVtxFitterTool::~MuSAVtxFitterTool ( )

default

Member Function Documentation

◆ declareGaudiProperty() [1/4]

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

inlineprivateinherited

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

Definition at line 170 of file AthCommonDataStore.h.

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

◆ declareGaudiProperty() [2/4]

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());
  
   }

◆ declareGaudiProperty() [3/4]

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

inlineprivateinherited

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

Definition at line 184 of file AthCommonDataStore.h.

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

◆ declareGaudiProperty() [4/4]

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

inlineprivateinherited

specialization for handling everything that's not a Gaudi::Property<SG::VarHandleKey> or a <SG::VarHandleKeyArray>

Definition at line 199 of file AthCommonDataStore.h.

   {
     return PBASE::declareProperty(t);
   }

◆ declareProperty() [1/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty	(	const std::string &	name,
		SG::VarHandleBase &	hndl,
		const std::string &	doc,
		const SG::VarHandleType &
	)

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
hndl	Object holding the property value.
doc	Documentation string for the property.

This is the version for types that derive from SG::VarHandleBase. The property value object is put on the input and output lists as appropriate; then we forward to the base class.

Definition at line 245 of file AthCommonDataStore.h.

   {
     this->declare(hndl.vhKey());
     hndl.vhKey().setOwner(this);
  
     return PBASE::declareProperty(name,hndl,doc);
   }

◆ declareProperty() [2/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty	(	const std::string &	name,
		SG::VarHandleKey &	hndl,
		const std::string &	doc,
		const SG::VarHandleKeyType &
	)

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
hndl	Object holding the property value.
doc	Documentation string for the property.

This is the version for types that derive from SG::VarHandleKey. The property value object is put on the input and output lists as appropriate; then we forward to the base class.

Definition at line 221 of file AthCommonDataStore.h.

   {
     this->declare(hndl);
     hndl.setOwner(this);
  
     return PBASE::declareProperty(name,hndl,doc);
   }

◆ declareProperty() [3/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty	(	const std::string &	name,
		SG::VarHandleKeyArray &	hndArr,
		const std::string &	doc,
		const SG::VarHandleKeyArrayType &
	)

inlineinherited

Definition at line 259 of file AthCommonDataStore.h.

   {
  
     // std::ostringstream ost;
     // ost << Algorithm::name() << " VHKA declareProp: " << name 
     //     << " size: " << hndArr.keys().size() 
     //     << " mode: " << hndArr.mode() 
     //     << "  vhka size: " << m_vhka.size()
     //     << "\n";
     // debug() << ost.str() << endmsg;
  
     hndArr.setOwner(this);
     m_vhka.push_back(&hndArr);
  
     Gaudi::Details::PropertyBase* p =  PBASE::declareProperty(name, hndArr, doc);
     if (p != 0) {
       p->declareUpdateHandler(&AthCommonDataStore<PBASE>::updateVHKA, this);
     } else {
       ATH_MSG_ERROR("unable to call declareProperty on VarHandleKeyArray " 
                     << name);
     }
  
     return p;
  
   }

◆ declareProperty() [4/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty	(	const std::string &	name,
		T &	property,
		const std::string &	doc,
		const SG::NotHandleType &
	)

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
property	Object holding the property value.
doc	Documentation string for the property.

This is the generic version, for types that do not derive from SG::VarHandleKey. It just forwards to the base class version of declareProperty.

Definition at line 333 of file AthCommonDataStore.h.

   {
     return PBASE::declareProperty(name, property, doc);
   }

◆ declareProperty() [5/6]

Gaudi::Details::PropertyBase* AthCommonDataStore< AthCommonMsg< AlgTool > >::declareProperty	(	const std::string &	name,
		T &	property,
		const std::string &	doc = `"none"`
	)

inlineinherited

Declare a new Gaudi property.

Parameters

name	Name of the property.
property	Object holding the property value.
doc	Documentation string for the property.

This dispatches to either the generic declareProperty or the one for VarHandle/Key/KeyArray.

Definition at line 352 of file AthCommonDataStore.h.

   {
     typedef typename SG::HandleClassifier<T>::type htype;
     return declareProperty (name, property, doc, htype());
   }

◆ declareProperty() [6/6]

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; }

◆ doMuSAVtxFit()

StatusCode Rec::MuSAVtxFitterTool::doMuSAVtxFit	(	std::vector< MuSAVtxFitterTool::WrkVrt > &	workVerticesContainer,
		const xAOD::MuonContainer &	muonContainer,
		const xAOD::EventInfo &	eventInfo,
		const EventContext &	ctx
	)		const

Definition at line 69 of file MuSAVtxFitterTool.cxx.

 {
     ATH_MSG_DEBUG("MuSAVtxFitterTool::doMuSAVtxFit");
  
     // first gather all SA muons that pass basic checks
     std::vector<const xAOD::Muon*> candidateSAmuons;
     for (const auto muon : muonContainer) {
         bool isSA = (muon->muonType() == xAOD::Muon::MuonStandAlone);
         bool isCalo = (muon->muonType() == xAOD::Muon::CaloTagged);
         bool isSegment = (muon->muonType() == xAOD::Muon::SegmentTagged);
         bool isSiForward = (muon->muonType() == xAOD::Muon::SiliconAssociatedForwardMuon);
  
         if (!isSA && !m_doValidation) {
             continue; 
         }
  
         const xAOD::TrackParticle* MuSAMSTP = muon->trackParticle(xAOD::Muon::MuonSpectrometerTrackParticle);
         if (!MuSAMSTP) {
             if (isCalo || isSegment || isSiForward) {
                 ATH_MSG_VERBOSE("Skipping non-SA, non-Combined muon type in validation mode!");
             } else {
                 ATH_MSG_WARNING("Muon has no MSTP, check your input!");
             }
             continue;
         }
  
         // pre-fit cuts at "seeding" level go here
         if (std::abs(MuSAMSTP->eta()) > m_etaCutMSTP) {
             ATH_MSG_VERBOSE("Skipping SA muon with |eta| > 2.5!");
             continue;
         }
         // SA muons can get saved with nonphysical pT values, checking prevents extrap crashes
         if (MuSAMSTP->pt() > 13000000) {
             ATH_MSG_DEBUG("Skipping SA muon with pT " << (MuSAMSTP->pt() / 1000.) << " GeV!");
             continue;
         }
  
         // SA muons can also be saved in regions with 0 magnetic field, which can cause extrapolation crashes
         float spectrometerFieldIntegral = 0.0;
         muon->parameter(spectrometerFieldIntegral, xAOD::Muon::spectrometerFieldIntegral);
         if (spectrometerFieldIntegral < 0.1) {
             ATH_MSG_DEBUG("Skipping SA muon with spectrometerFieldIntegral " << muon->spectrometerFieldIntegral << " T*m!");
             continue;
         }
  
         candidateSAmuons.push_back(muon);
     }
  
     // bail out if we don't have at least two valid SA muons
     if (candidateSAmuons.size() < 2) {
         ATH_MSG_VERBOSE("Not enough standalone muons to fit a vertex!");
         return StatusCode::SUCCESS;
     }
  
     // extrapolate SA muons only if we have enough candidates to form a vertex
     std::vector<std::unique_ptr<xAOD::TrackParticle>> extrapolatedMuSATracks;
     std::map<const xAOD::TrackParticle*, const xAOD::Muon*> muonToExtrapolatedTrackMap;
     for (const auto muon : candidateSAmuons) {
         const xAOD::TrackParticle* MuSAMSTP = muon->trackParticle(xAOD::Muon::MuonSpectrometerTrackParticle);
         auto extrapolatedMuSATrack = extrapolateMuSA(*MuSAMSTP, eventInfo, ctx);
         if (extrapolatedMuSATrack->definingParameters()[Trk::d0] > 8000) {
             ATH_MSG_DEBUG("Failed to extrapolate MuSA track, skipping!");
             continue;
         }
         extrapolatedMuSATracks.push_back(std::move(extrapolatedMuSATrack));
         muonToExtrapolatedTrackMap[extrapolatedMuSATracks.back().get()] = muon;
         ATH_MSG_VERBOSE("Extrapolated MuSA track! Total extrapolated so far: " << extrapolatedMuSATracks.size());
     }
  
     if (extrapolatedMuSATracks.size() < 2) {
         ATH_MSG_VERBOSE("Not enough extrapolated tracks to fit a vertex!");
         return StatusCode::SUCCESS;
     }
  
     std::unique_ptr<Trk::IVKalState> state = m_vertexFitter->makeState(ctx);
     // Loop over all unique pairs.
     for (unsigned int i = 0; i < extrapolatedMuSATracks.size(); i++) {
         for (unsigned int j = i+1; j < extrapolatedMuSATracks.size(); j++) {
             MuSAVtxFitterTool::WrkVrt MuSACandidate;
             std::vector<const xAOD::TrackParticle*> tracksToFit = {
                 extrapolatedMuSATracks[i].get(),
                 extrapolatedMuSATracks[j].get()
             };
             std::vector<const xAOD::NeutralParticle*> dummyNeutrals;
             StatusCode res = m_vertexFitter->VKalVrtFit(tracksToFit, dummyNeutrals, 
                                                         MuSACandidate.pos, MuSACandidate.mom, 
                                                         MuSACandidate.charge, MuSACandidate.cov, 
                                                         MuSACandidate.chi2PerTrk, MuSACandidate.trkAtVrt, 
                                                         MuSACandidate.chi2, *state);
             if (res.isSuccess()) {
                 ATH_MSG_DEBUG("MuSA vertex fit successful!");
                 // Transfer persistent ownership by converting the unique_ptr to a shared_ptr
                 // for both tracks used in this candidate (lets unused tracks go out of scope peacefully while keeping used ones)
                 auto sharedTrack1 = std::make_shared<const xAOD::TrackParticle>(*extrapolatedMuSATracks[i]);
                 auto sharedTrack2 = std::make_shared<const xAOD::TrackParticle>(*extrapolatedMuSATracks[j]);
                 MuSACandidate.newExtrapolatedTracks.push_back(sharedTrack1);
                 MuSACandidate.newExtrapolatedTracks.push_back(sharedTrack2);
                 MuSACandidate.muonCandidates = { 
                     muonToExtrapolatedTrackMap[tracksToFit[0]],
                     muonToExtrapolatedTrackMap[tracksToFit[1]]
                 };
                 MuSACandidate.minOpAng = muonToExtrapolatedTrackMap[tracksToFit[0]]->p4().DeltaR(
                                           muonToExtrapolatedTrackMap[tracksToFit[1]]->p4());
                 workVerticesContainer.emplace_back(MuSACandidate);
             } else {
                 ATH_MSG_DEBUG("MuSA vertex fit failed!");
             }
         }
     }
     // NOTE: Any remaining extrapolated tracks in the vector will be cleaned up automatically when they go out of scope
     // this means the logic may need to be revisited if we want to "recover" extrapolated tracks that were not used in any fit through another mechanism 
     return StatusCode::SUCCESS;
 }

◆ doPostFitSelections()

StatusCode Rec::MuSAVtxFitterTool::doPostFitSelections ( std::vector< MuSAVtxFitterTool::WrkVrt > & workVerticesContainer ) const

Definition at line 186 of file MuSAVtxFitterTool.cxx.

                                                                                                                 {
     ATH_MSG_DEBUG("MuSAVtxFitterTool::doPostFitSelections");
     //minimal method for post-fit selections
     for (auto& workVertex : workVerticesContainer) {
         if (workVertex.chi2 > m_baseChi2Cut) {
             ATH_MSG_DEBUG("SA vertex chi2 too high, removing from consideration");
             workVertex.isGood = false; // isGood flag has no specific utility here yet, but may be used in the future for more sophisticated recovery/reassembly 
         }
     }
  
     //remove any vertices marked as bad
     workVerticesContainer.erase(std::remove_if(workVerticesContainer.begin(), workVerticesContainer.end(), 
         [&](const MuSAVtxFitterTool::WrkVrt& vtx) { return !vtx.isGood; }), workVerticesContainer.end());
  
     return StatusCode::SUCCESS;
 }

◆ evtStore() [1/2]

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; }

◆ evtStore() [2/2]

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

inlineinherited

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

Definition at line 90 of file AthCommonDataStore.h.

90 { 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

◆ extrapolateMuSA()

std::unique_ptr< xAOD::TrackParticle > Rec::MuSAVtxFitterTool::extrapolateMuSA	(	const xAOD::TrackParticle &	trk,
		const xAOD::EventInfo &	eventInfo,
		const EventContext &	ctx
	)		const

Definition at line 43 of file MuSAVtxFitterTool.cxx.

                                                                                                                                                                {
     
     Amg::Vector3D refPos(eventInfo.beamPosX(), eventInfo.beamPosY(), eventInfo.beamPosZ());
     Trk::PerigeeSurface persurf(refPos);
     Trk::PropDirection propagationDirection = Trk::oppositeMomentum;
  
     auto newTrack = std::make_unique<xAOD::TrackParticle>();
     newTrack->makePrivateStore();
  
     auto perigee = trk.perigeeParameters();
     auto entryPars = m_extrapolator->extrapolate(ctx, perigee, persurf, propagationDirection, false, Trk::muon);
  
     if (!entryPars) {
         ATH_MSG_WARNING("Failed to back extrapolate MSTP, returning dummy!");
         // Return a dummy track that will fail downstream cuts (extrapolations can sometimes fail due to various non-pathological reasons -- SA muons are not always high quality objects) 
         newTrack->setDefiningParameters(1.e19, 1.e19, 1.e19, 1.e19, 0);
         return newTrack;
     }
  
     newTrack->setDefiningParameters(entryPars->parameters()[Trk::d0], entryPars->parameters()[Trk::z0], entryPars->parameters()[Trk::phi], entryPars->parameters()[Trk::theta], entryPars->parameters()[Trk::qOverP]);
     newTrack->setDefiningParametersCovMatrix(*entryPars->covariance());
     newTrack->setParametersOrigin(eventInfo.beamPosX(), eventInfo.beamPosY(), eventInfo.beamPosZ());
  
     return newTrack;
 }

◆ initialize()

StatusCode Rec::MuSAVtxFitterTool::initialize ( )

overridevirtual

Definition at line 27 of file MuSAVtxFitterTool.cxx.

 {
     
     ATH_CHECK(m_vertexFitter.retrieve());
     ATH_MSG_DEBUG("Retrieved tool " << m_vertexFitter);
  
     ATH_CHECK(m_extrapolator.retrieve());
     ATH_MSG_DEBUG("Retrieved tool " << m_extrapolator);
  
     ATH_MSG_DEBUG("Initialization successful");
  
     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()

static const InterfaceID& Rec::MuSAVtxFitterTool::interfaceID ( )

inlinestatic

Definition at line 30 of file MuSAVtxFitterTool.h.

30 { return IID_MuSAVtxFitterTool;}

◆ msg() [1/2]

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

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                 {
     return this->msgStream();
   }

◆ msg() [2/2]

MsgStream& AthCommonMsg< AlgTool >::msg ( const MSG::Level lvl ) const

inlineinherited

Definition at line 27 of file AthCommonMsg.h.

                                                   {
     return this->msgStream(lvl);
   }

◆ 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();
   }

◆ selectBestVertices()

StatusCode Rec::MuSAVtxFitterTool::selectBestVertices ( std::vector< MuSAVtxFitterTool::WrkVrt > & workVerticesContainer ) const

Definition at line 203 of file MuSAVtxFitterTool.cxx.

 {
     ATH_MSG_DEBUG("MuSAVtxFitterTool::selectBestVertices");
     //the default logic will create vertices with all possible combinations of SA muons
     //in rare cases this will cause two MuSA vertices in one event that re-use a muon (more likely in signal models with two or more LLP BSM decays)
     //if this occurs we can select based on the highest chi2 and remove the poorer-quality vertex from consideration
  
     //first check if a muon is re-used in multiple vertices
  
     if (workVerticesContainer.size() < 2) {
         ATH_MSG_VERBOSE("Only one MuSA vertex, no need to select best!");
         return StatusCode::SUCCESS;
     }
  
     //sort all the vertices by chi2 starting with the lowest
     std::sort(workVerticesContainer.begin(), workVerticesContainer.end(), [](const MuSAVtxFitterTool::WrkVrt& v1, const MuSAVtxFitterTool::WrkVrt& v2) { return v1.chi2 < v2.chi2; });
     ATH_MSG_VERBOSE("Sorted vertices by chi2! Lowest chi2: " << workVerticesContainer.front().chi2 << " Highest chi2: " << workVerticesContainer.back().chi2);
  
     //starting with the lowest chi2 vertex, check its muons and remove any other vertices that use the same muons
     for (unsigned int i = 0; i < workVerticesContainer.size(); i++) {
         auto& vertex = workVerticesContainer.at(i);
         if (!vertex.isGood) {
             continue; // skip vertices we've already marked as bad
         }
         for (unsigned int j = i+1; j < workVerticesContainer.size(); j++) {
             auto& otherVertex = workVerticesContainer.at(j);
             for (const auto& muon : vertex.muonCandidates) {
                 if (std::find(otherVertex.muonCandidates.begin(), otherVertex.muonCandidates.end(), muon) != otherVertex.muonCandidates.end()) {
                     //remove the other vertex
                     ATH_MSG_VERBOSE("Found a vertex re-using a muon with chi2: " << otherVertex.chi2 << " removing from consideration!");
                     otherVertex.isGood = false;
                 }
             }
         }
     }
  
     //remove any vertices marked as bad
     workVerticesContainer.erase(std::remove_if(workVerticesContainer.begin(), workVerticesContainer.end(), 
         [&](const MuSAVtxFitterTool::WrkVrt& vtx) { return !vtx.isGood; }), workVerticesContainer.end());
  
     return StatusCode::SUCCESS;
     
     
 }

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

◆ 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_baseChi2Cut

DoubleProperty Rec::MuSAVtxFitterTool::m_baseChi2Cut {this, "baseChi2Cut", 50., "Maximum allowed chi2 of saved vertices"}

private

Definition at line 92 of file MuSAVtxFitterTool.h.

◆ 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_doValidation

Gaudi::Property<bool> Rec::MuSAVtxFitterTool::m_doValidation {this, "doValidation", false, "Vertex every MSTP in input as part of validation process"}

private

Definition at line 93 of file MuSAVtxFitterTool.h.

◆ m_etaCutMSTP

DoubleProperty Rec::MuSAVtxFitterTool::m_etaCutMSTP {this, "etaCutMSTP", 2.5, "Maximum |eta| of input MSTPs"}

private

Definition at line 91 of file MuSAVtxFitterTool.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_extrapolator

ToolHandle<Trk::IExtrapolator> Rec::MuSAVtxFitterTool::m_extrapolator

private

Initial value:

{

this,"Extrapolator","Trk::Extrapolator/AtlasExtrapolator","ATLAS Extrapolator tool"}

Definition at line 88 of file MuSAVtxFitterTool.h.

◆ m_varHandleArraysDeclared

bool AthCommonDataStore< AthCommonMsg< AlgTool > >::m_varHandleArraysDeclared

privateinherited

Definition at line 399 of file AthCommonDataStore.h.

◆ m_vertexFitter

ToolHandle<Trk::ITrkVKalVrtFitter> Rec::MuSAVtxFitterTool::m_vertexFitter

private

Initial value:

{

this, "VertexFitterTool", "Trk::TrkVKalVrtFitter", "Vertex fitter tool"}

Definition at line 86 of file MuSAVtxFitterTool.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:

Classes

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

◆ MuSAVtxFitterTool()

◆ ~MuSAVtxFitterTool()

Member Function Documentation

◆ declareGaudiProperty() [1/4]

◆ declareGaudiProperty() [2/4]

◆ declareGaudiProperty() [3/4]

◆ declareGaudiProperty() [4/4]

◆ declareProperty() [1/6]

◆ declareProperty() [2/6]

◆ declareProperty() [3/6]

◆ declareProperty() [4/6]

◆ declareProperty() [5/6]

◆ declareProperty() [6/6]

◆ detStore()

◆ doMuSAVtxFit()

◆ doPostFitSelections()

◆ evtStore() [1/2]

◆ evtStore() [2/2]

◆ extraDeps_update_handler()

◆ extrapolateMuSA()

◆ initialize()

◆ inputHandles()

◆ interfaceID()

◆ msg() [1/2]

◆ msg() [2/2]

◆ msgLvl()

◆ outputHandles()

◆ renounce()

◆ renounceArray()

◆ selectBestVertices()

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

Member Data Documentation

◆ m_baseChi2Cut

◆ m_detStore

◆ m_doValidation

◆ m_etaCutMSTP

◆ m_evtStore

◆ m_extrapolator

◆ m_varHandleArraysDeclared

◆ m_vertexFitter

◆ m_vhka