Tool to calculate the scattering angle significance from the detailed information (parameters, scattering angles) of a track fit. More...

#include <MuonScatteringAngleSignificanceTool.h>

Inheritance diagram for Rec::MuonScatteringAngleSignificanceTool:

Collaboration diagram for Rec::MuonScatteringAngleSignificanceTool:

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

	~MuonScatteringAngleSignificanceTool ()=default

StatusCode	initialize ()

ScatteringAngleSignificance	scatteringAngleSignificance (const xAOD::Muon &muon) const
	Calculate ScatteringAngleSignificance of a muon, stepping down to the relevant track. More...

ScatteringAngleSignificance	scatteringAngleSignificance (const Trk::Track &track) const
	Calculate ScatteringAngleSignificance of a track. More...

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 > &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
bool	isSlimmed (const Trk::Track &track) const
	does track have TrackParameters at every TSOS ? Method for compatibility with release < 17, where SlimmedTrack property isn't filled. More...

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

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

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

Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T > &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::ITrackFitter >	m_fitter
	tool for unslimming via track fit More...

ServiceHandle< Trk::ITrackingVolumesSvc >	m_trackingVolumesSvc

const Trk::Volume *	m_calorimeterVolume
	cache the calo volume pointer More...

const Trk::Volume *	m_indetVolume
	cache the ID volume pointer More...

bool	m_inDetOnly
	scatterers from ID only (or ID + calo) More...

bool	m_refitInDetOnly
	steer if to unslim only ID More...

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

Tool to calculate the scattering angle significance from the detailed information (parameters, scattering angles) of a track fit.

Definition at line 26 of file MuonScatteringAngleSignificanceTool.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

◆ MuonScatteringAngleSignificanceTool()

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

Definition at line 16 of file MuonScatteringAngleSignificanceTool.cxx.

                                                                                                        :
         AthAlgTool(type, name, parent), m_calorimeterVolume(nullptr), m_indetVolume(nullptr), m_inDetOnly(true), m_refitInDetOnly(true) {
         declareInterface<IMuonScatteringAngleSignificance>(this);
         declareProperty("InDetOnly", m_inDetOnly);
         declareProperty("RefitInDetOnly", m_refitInDetOnly);
     }

◆ ~MuonScatteringAngleSignificanceTool()

Rec::MuonScatteringAngleSignificanceTool::~MuonScatteringAngleSignificanceTool ( )

default

Member Function Documentation

◆ declareGaudiProperty() [1/4]

Gaudi::Details::PropertyBase& AthCommonDataStore< AthCommonMsg< AlgTool > >::declareGaudiProperty	(	Gaudi::Property< T > &	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 > &	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 > &	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 > &	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 > & 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; }

◆ 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

◆ initialize()

StatusCode Rec::MuonScatteringAngleSignificanceTool::initialize ( )

Definition at line 25 of file MuonScatteringAngleSignificanceTool.cxx.

                                                                {
         ATH_MSG_INFO("Initializing MuonScatAngleSignificanceTool");
  
         // tool needed to refit slimmed tracks
         if (!m_fitter.empty()) {
             if (m_fitter.retrieve().isFailure()) {
                 ATH_MSG_FATAL("Failed to retrieve tool " << m_fitter);
                 m_fitter.setTypeAndName("");  // Bang!
             } else {
                 ATH_MSG_DEBUG("Retrieved tool " << m_fitter);
             }
         }
  
         // need to know which TrackingVolume we are in: indet/calo/spectrometer
         if (m_trackingVolumesSvc.retrieve().isFailure()) {
             ATH_MSG_FATAL("Failed to retrieve Svc " << m_trackingVolumesSvc);
             return StatusCode::FAILURE;
         } else {
             ATH_MSG_DEBUG("Retrieved Svc " << m_trackingVolumesSvc);
             m_calorimeterVolume = new Trk::Volume(m_trackingVolumesSvc->volume(Trk::ITrackingVolumesSvc::MuonSpectrometerEntryLayer));
             m_indetVolume = new Trk::Volume(m_trackingVolumesSvc->volume(Trk::ITrackingVolumesSvc::CalorimeterEntryLayer));
         }
  
         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::IMuonScatteringAngleSignificance::interfaceID ( )

inlinestaticinherited

Definition at line 25 of file IMuonScatteringAngleSignificance.h.

                                                 {
             static const InterfaceID IID_IMuonScatteringAngleSignificance("Rec::IMuonScatteringAngleSignificance", 1, 0);
             return IID_IMuonScatteringAngleSignificance;
         }

◆ isSlimmed()

bool Rec::MuonScatteringAngleSignificanceTool::isSlimmed ( const Trk::Track & track ) const

private

does track have TrackParameters at every TSOS ? Method for compatibility with release < 17, where SlimmedTrack property isn't filled.

Definition at line 242 of file MuonScatteringAngleSignificanceTool.cxx.

                                                                                    {
         for (Trk::TrackStates::const_iterator s = track.trackStateOnSurfaces()->begin();
              s != track.trackStateOnSurfaces()->end(); ++s) {
             if ((**s).trackParameters()) continue;
  
             ATH_MSG_VERBOSE("track is slimmed (found TSOS without trackParameters) ");
             return true;
         }
  
         ATH_MSG_VERBOSE("track is not slimmed (all TSOS have trackParameters) ");
  
         return false;
     }

◆ 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();
   }

◆ scatteringAngleSignificance() [1/2]

ScatteringAngleSignificance Rec::MuonScatteringAngleSignificanceTool::scatteringAngleSignificance ( const Trk::Track & track ) const

virtual

Calculate ScatteringAngleSignificance of a track.

Implements Rec::IMuonScatteringAngleSignificance.

Definition at line 70 of file MuonScatteringAngleSignificanceTool.cxx.

                                                                                                                             {
         // provide refit for slimmed tracks
         const Trk::Track* fullTrack = &track;
         const Trk::Track* refittedTrack = nullptr;
         //  if (track.info().trackProperties(Trk::TrackInfo::SlimmedTrack)) {
         if (isSlimmed(track)) {  // TrackInfo::SlimmedTrack wouldn't detect STACO tracks as (half-)slimmed
  
             if (!m_fitter.empty() && track.perigeeParameters() && track.measurementsOnTrack() && track.measurementsOnTrack()->size() > 3) {
                 ATH_MSG_VERBOSE(" perform refit as track has been slimmed");
                 if (m_refitInDetOnly) {
                     std::vector<const Trk::MeasurementBase*> vec;
                     DataVector<const Trk::MeasurementBase>::const_iterator measIter = track.measurementsOnTrack()->begin();
                     for (; measIter != track.measurementsOnTrack()->end(); ++measIter) {
                         const Amg::Vector3D& position = (*measIter)->globalPosition();
                         if (!m_indetVolume->inside(position)) continue;
                         vec.push_back((*measIter));
                     }
                     ATH_MSG_DEBUG("Refitting ID-part of track, meast vector of size " << vec.size());
                     refittedTrack = m_fitter->fit(Gaudi::Hive::currentContext(),
                                                   vec,
                                                   *(track.perigeeParameters()),
                                                   false,
                                                   Trk::muon).release();
                 } else {
                   refittedTrack = m_fitter->fit(
                     Gaudi::Hive::currentContext(), track, false, Trk::muon).release();
                 }
                 fullTrack = refittedTrack;
             }
             ATH_MSG_DEBUG("Detected slimmed track, " << (refittedTrack ? "refit was successful" : "but could not refit it!"));
  
             if (!refittedTrack) return ScatteringAngleSignificance(0);
         }
  
         // collect sigma of phi scatterers up to last inDet measurement TSOS or to CaloDeposit TSOS
         // (according to configuration).
         // Define scattering in direction of curvature change to be +ve
         double charge = fullTrack->perigeeParameters()->charge();
         unsigned measurements = 0;
         double neighbourRadius = 0.;
         double neighbourSignificance = 0.;
         unsigned neighbours = 0;
         unsigned scatterers = 0;
         unsigned startMeasurement = 0;
         std::vector<bool> isMeasurement;
         std::vector<unsigned> measurementNumber;
         std::vector<double> radii;
         std::vector<double> sigmas;
         double significance = 0.;
         double totalSigma = 0.;
         double weightedRadius = 0.;
         for (Trk::TrackStates::const_iterator s = fullTrack->trackStateOnSurfaces()->begin();
              s != fullTrack->trackStateOnSurfaces()->end(); ++s) {
             // skip leading material
             if ((**s).measurementOnTrack()) {
                 ++measurements;
             } else if (!measurements)
                 continue;
  
             // select MaterialEffects up to calorimeter energy deposit
             if (!(**s).materialEffectsOnTrack()) continue;
             if ((**s).type(Trk::TrackStateOnSurface::CaloDeposit)) break;
             const Amg::Vector3D& position = (**s).materialEffectsOnTrack()->associatedSurface().globalReferencePoint();
             if (!m_calorimeterVolume->inside(position)) break;
  
             const Trk::MaterialEffectsOnTrack* meot = dynamic_cast<const Trk::MaterialEffectsOnTrack*>((**s).materialEffectsOnTrack());
             if (!meot) continue;
  
             // get scattering angle
             const Trk::ScatteringAngles* scattering = meot->scatteringAngles();
             if (!scattering) continue;
  
             ++scatterers;
             double radius = (**s).trackParameters()->position().perp();
             double sigma = charge * scattering->deltaPhi() / scattering->sigmaDeltaPhi();
             if ((**s).measurementOnTrack()) {
                 isMeasurement.push_back(true);
             } else {
                 isMeasurement.push_back(false);
             }
             measurementNumber.push_back(measurements);
  
             // keep maximum neighbour significance
             // (summed scattering significance for scatterers spanning neighbouring measurements)
             ++neighbours;
             significance += sigma;
             weightedRadius += sigma * radius;
             if (neighbours > 1 && measurements > startMeasurement) {
                 double norm = 1. / sqrt(static_cast<double>(neighbours));
                 if (norm * fabs(significance) > fabs(neighbourSignificance)) {
                     if (significance == 0.) {
                         neighbourRadius = radius;
                     } else {
                         neighbourRadius = weightedRadius / significance;
                     }
                     neighbourSignificance = norm * significance;
                     ATH_MSG_VERBOSE("   current maximum for neighbourSignificance " << neighbourSignificance << " from " << neighbours
                                                                                     << " scatterers at radius " << neighbourRadius);
                 }
                 ATH_MSG_VERBOSE("   reset neighbour after " << significance << " /sqrt(" << neighbours << ") at radius " << radius);
                 neighbours = 0;
                 significance = 0.;
                 startMeasurement = measurements;
                 weightedRadius = 0.;
                 if (isMeasurement.back()) {
                     ++neighbours;
                     significance += sigma;
                     weightedRadius += sigma * radius;
                 }
             }
  
             radii.push_back(radius);
             sigmas.push_back(sigma);
             totalSigma += sigma;
  
             ATH_MSG_VERBOSE(scatterers << " " << measurements << " " << isMeasurement.back() << " radius "
                                        << (**s).trackParameters()->position().perp() << "   deltaPhi " << scattering->deltaPhi()
                                        << "   significance " << sigma << "  integralSignificance " << totalSigma);
         }
  
         // pop_back to last measurement unless configured to use calo
         delete refittedTrack;
         if (m_inDetOnly) {
             while (scatterers && measurementNumber.back() == measurements && !isMeasurement.back()) {
                 --scatterers;
                 totalSigma -= sigmas.back();
                 isMeasurement.pop_back();
                 measurementNumber.pop_back();
                 radii.pop_back();
                 sigmas.pop_back();
             }
         }
  
         // quit if no scatterers selected
         if (!scatterers) {
             ATH_MSG_DEBUG(" no scatterers selected, giving up.");
             return ScatteringAngleSignificance(0);
         }
  
         // search for discontinuity point (sign change of integral scattering)
         // maximum value determines curvatureSignificance
         double curvatureSignificance = totalSigma;
         double curvatureRadius = *radii.rbegin();
         unsigned index = scatterers - 1;
  
         ATH_MSG_VERBOSE(" scatteringAngleSignificance " << totalSigma << " at radius " << radii[index] << " at scatterer " << scatterers
                                                         << "  sigmas.size() " << sigmas.size());
  
         for (std::vector<double>::const_reverse_iterator r = sigmas.rbegin(); r != sigmas.rend(); ++r, --index) {
             totalSigma -= 2. * (*r);
             if (index > 1)
                 ATH_MSG_VERBOSE(" scatteringAngleSignificance " << totalSigma << " at radius " << radii[index - 1] << " at scatterer "
                                                                 << index);
  
             if (fabs(totalSigma) > fabs(curvatureSignificance) && index > 1) {
                 curvatureSignificance = totalSigma;
                 curvatureRadius = radii[index - 1];
             }
         }
  
         // normalize final curvature significance
         curvatureSignificance /= sqrt(static_cast<double>(scatterers));
  
         ATH_MSG_DEBUG(" scatteringAngleSignificance" << std::setiosflags(std::ios::fixed) << std::setw(7) << std::setprecision(2)
                                                      << curvatureSignificance << " at radius " << std::setw(6) << std::setprecision(1)
                                                      << curvatureRadius << " neighbourSignificance " << std::setw(7) << std::setprecision(2)
                                                      << neighbourSignificance << " at radius " << std::setw(6) << std::setprecision(1)
                                                      << neighbourRadius << " from " << scatterers << " scatterers");
  
         return ScatteringAngleSignificance(scatterers, curvatureRadius, curvatureSignificance, neighbourRadius, neighbourSignificance);
     }

◆ scatteringAngleSignificance() [2/2]

ScatteringAngleSignificance Rec::MuonScatteringAngleSignificanceTool::scatteringAngleSignificance ( const xAOD::Muon & muon ) const

virtual

Calculate ScatteringAngleSignificance of a muon, stepping down to the relevant track.

Implements Rec::IMuonScatteringAngleSignificance.

Definition at line 51 of file MuonScatteringAngleSignificanceTool.cxx.

                                                                                                                            {
         if (muon.muonType() == xAOD::Muon::MuonStandAlone) return ScatteringAngleSignificance(0);
  
         const Trk::Track* theTrack =
             muon.trackParticle(xAOD::Muon::CombinedTrackParticle) ? muon.trackParticle(xAOD::Muon::CombinedTrackParticle)->track() : nullptr;
  
         if (theTrack == nullptr) {
             theTrack = muon.trackParticle(xAOD::Muon::InnerDetectorTrackParticle)
                            ? muon.trackParticle(xAOD::Muon::InnerDetectorTrackParticle)->track()
                            : nullptr;
         }
  
         if (theTrack == nullptr) {
             ATH_MSG_DEBUG("No track, returning empty scatterer-significance object.");
             return ScatteringAngleSignificance(0);
         } else
             return scatteringAngleSignificance(*theTrack);
     }

◆ 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_calorimeterVolume

const Trk::Volume* Rec::MuonScatteringAngleSignificanceTool::m_calorimeterVolume

private

cache the calo volume pointer

Definition at line 52 of file MuonScatteringAngleSignificanceTool.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_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_fitter

ToolHandle<Trk::ITrackFitter> Rec::MuonScatteringAngleSignificanceTool::m_fitter

private

Initial value:

{this, "TrackFitter", "",

"tool for unslimming via track fit"}

tool for unslimming via track fit

Definition at line 46 of file MuonScatteringAngleSignificanceTool.h.

◆ m_inDetOnly

bool Rec::MuonScatteringAngleSignificanceTool::m_inDetOnly

private

scatterers from ID only (or ID + calo)

Definition at line 56 of file MuonScatteringAngleSignificanceTool.h.

◆ m_indetVolume

const Trk::Volume* Rec::MuonScatteringAngleSignificanceTool::m_indetVolume

private

cache the ID volume pointer

Definition at line 53 of file MuonScatteringAngleSignificanceTool.h.

◆ m_refitInDetOnly

bool Rec::MuonScatteringAngleSignificanceTool::m_refitInDetOnly

private

steer if to unslim only ID

Definition at line 57 of file MuonScatteringAngleSignificanceTool.h.

◆ m_trackingVolumesSvc

ServiceHandle<Trk::ITrackingVolumesSvc> Rec::MuonScatteringAngleSignificanceTool::m_trackingVolumesSvc

private

Initial value:

{this, "TrackingVolumesSvc", "TrackingVolumesSvc",

"geometry for analysing track lengths"}

Definition at line 48 of file MuonScatteringAngleSignificanceTool.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:

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

◆ MuonScatteringAngleSignificanceTool()

◆ ~MuonScatteringAngleSignificanceTool()

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()

◆ evtStore() [1/2]

◆ evtStore() [2/2]

◆ extraDeps_update_handler()

◆ initialize()

◆ inputHandles()

◆ interfaceID()

◆ isSlimmed()

◆ msg() [1/2]

◆ msg() [2/2]

◆ msgLvl()

◆ outputHandles()

◆ renounce()

◆ renounceArray()

◆ scatteringAngleSignificance() [1/2]

◆ scatteringAngleSignificance() [2/2]

◆ sysInitialize()

◆ sysStart()

◆ updateVHKA()

Member Data Documentation

◆ m_calorimeterVolume

◆ m_detStore

◆ m_evtStore

◆ m_fitter

◆ m_inDetOnly

◆ m_indetVolume

◆ m_refitInDetOnly

◆ m_trackingVolumesSvc

◆ m_varHandleArraysDeclared

◆ m_vhka