V0 Class Reference

Object holding information for V0s. More...

#include <V0.h>

Inheritance diagram for V0:

Public Member Functions
	V0 ()
	Constructor without arguments; needed for I/O.
	V0 (const std::pair< const Belle2::Track *, const Belle2::TrackFitResult * > &trackPairPositive, const std::pair< const Belle2::Track *, const Belle2::TrackFitResult * > &trackPairNegative, double vertexX, double vertexY, double vertexZ)
	Constructor taking two pairs of tracks and trackFitResults, and the fitted vertex coordinates.
std::pair< Track *, Track * >	getTracks () const
	Get pair of the Tracks, that are part of the V0 particle.
std::pair< short, short >	getTrackIndices () const
	Get indices of the Tracks, that are part of the V0 particle.
std::pair< TrackFitResult *, TrackFitResult * >	getTrackFitResults () const
	Get pair of the TrackFitResults, that are part of the V0 particle.
std::pair< short, short >	getTrackFitResultIndices () const
	Get indices of the TrackFitResults, that are part of the V0 particle.
Const::ParticleType	getV0Hypothesis () const
	Get the hypothesis under which the V0 particle was created.
double	getFittedVertexX () const
	Get the X coordinate of the fitted vertex.
double	getFittedVertexY () const
	Get the Y coordinate of the fitted vertex.
double	getFittedVertexZ () const
	Get the Z coordinate of the fitted vertex.
ROOT::Math::XYZVector	getFittedVertexPosition () const
	Get the fitted vertex position.
void	addRelationTo (const RelationsInterface< TObject > *object, float weight=1.0, const std::string &namedRelation="") const
	Add a relation from this object to another object (with caching).
void	addRelationTo (const TObject *object, float weight=1.0, const std::string &namedRelation="") const
	Add a relation from this object to another object (no caching, can be quite slow).
void	addRelationTo (const RelationsInterface< TObject > *object, float weight=1.0, const std::string &namedRelation="") const
	Add a relation from this object to another object (with caching).
void	addRelationTo (const TObject *object, float weight=1.0, const std::string &namedRelation="") const
	Add a relation from this object to another object (no caching, can be quite slow).
void	copyRelations (const RelationsInterface< TObject > *sourceObj)
	Copies all relations of sourceObj (pointing from or to sourceObj) to this object (including weights).
void	copyRelations (const RelationsInterface< TObject > *sourceObj)
	Copies all relations of sourceObj (pointing from or to sourceObj) to this object (including weights).
RelationVector< TO >	getRelationsTo (const std::string &name="", const std::string &namedRelation="") const
	Get the relations that point from this object to another store array.
RelationVector< TO >	getRelationsTo (const std::string &name="", const std::string &namedRelation="") const
	Get the relations that point from this object to another store array.
RelationVector< FROM >	getRelationsFrom (const std::string &name="", const std::string &namedRelation="") const
	Get the relations that point from another store array to this object.
RelationVector< FROM >	getRelationsFrom (const std::string &name="", const std::string &namedRelation="") const
	Get the relations that point from another store array to this object.
RelationVector< T >	getRelationsWith (const std::string &name="", const std::string &namedRelation="") const
	Get the relations between this object and another store array.
RelationVector< T >	getRelationsWith (const std::string &name="", const std::string &namedRelation="") const
	Get the relations between this object and another store array.
TO *	getRelatedTo (const std::string &name="", const std::string &namedRelation="") const
	Get the object to which this object has a relation.
TO *	getRelatedTo (const std::string &name="", const std::string &namedRelation="") const
	Get the object to which this object has a relation.
FROM *	getRelatedFrom (const std::string &name="", const std::string &namedRelation="") const
	Get the object from which this object has a relation.
FROM *	getRelatedFrom (const std::string &name="", const std::string &namedRelation="") const
	Get the object from which this object has a relation.
T *	getRelated (const std::string &name="", const std::string &namedRelation="") const
	Get the object to or from which this object has a relation.
T *	getRelated (const std::string &name="", const std::string &namedRelation="") const
	Get the object to or from which this object has a relation.
std::pair< TO *, float >	getRelatedToWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing to an array.
std::pair< TO *, float >	getRelatedToWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing to an array.
std::pair< FROM *, float >	getRelatedFromWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing from an array.
std::pair< FROM *, float >	getRelatedFromWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing from an array.
std::pair< T *, float >	getRelatedWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing from/to an array.
std::pair< T *, float >	getRelatedWithWeight (const std::string &name="", const std::string &namedRelation="") const
	Get first related object & weight of relation pointing from/to an array.
virtual std::string	getName () const
	Return a short name that describes this object, e.g.
virtual std::string	getName () const
	Return a short name that describes this object, e.g.
virtual std::string	getInfoHTML () const
	Return a short summary of this object's contents in HTML format.
virtual std::string	getInfoHTML () const
	Return a short summary of this object's contents in HTML format.
std::string	getInfo () const
	Return a short summary of this object's contents in raw text format.
std::string	getInfo () const
	Return a short summary of this object's contents in raw text format.
std::string	getArrayName () const
	Get name of array this object is stored in, or "" if not found.
std::string	getArrayName () const
	Get name of array this object is stored in, or "" if not found.
int	getArrayIndex () const
	Returns this object's array index (in StoreArray), or -1 if not found.
int	getArrayIndex () const
	Returns this object's array index (in StoreArray), or -1 if not found.

Protected Member Functions
TClonesArray *	getArrayPointer () const
	Returns the pointer to the raw DataStore array holding this object (protected since these arrays are easy to misuse).
TClonesArray *	getArrayPointer () const
	Returns the pointer to the raw DataStore array holding this object (protected since these arrays are easy to misuse).

Private Member Functions
	ClassDef (V0, 5)
	Macro for ROOTification.

Private Attributes
Double32_t	m_fittedVertexX = 0.0
	The X coordinate of the fitted vertex.
Double32_t	m_fittedVertexY = 0.0
	The Y coordinate of the fitted vertex.
Double32_t	m_fittedVertexZ = 0.0
	The Z coordinate of the fitted vertex.
short	m_trackIndexPositive = -1
	Indicates which positively charged track was used for this V0.
short	m_trackIndexNegative = -1
	Indicates which negatively charged track was used for this V0.
short	m_trackFitResultIndexPositive = -1
	Points to the new TrackFitResult of the positive Track.
short	m_trackFitResultIndexNegative = -1
	Points to the new TrackFitResult of the positive Track.
DataStore::StoreEntry *	m_cacheDataStoreEntry
	Cache of the data store entry to which this object belongs.
DataStore::StoreEntry *	m_cacheDataStoreEntry
	Cache of the data store entry to which this object belongs.
int	m_cacheArrayIndex
	Cache of the index in the TClonesArray to which this object belongs.
int	m_cacheArrayIndex
	Cache of the index in the TClonesArray to which this object belongs.

Friends
class	FixMergedObjectsModule

Detailed Description

Object holding information for V0s.

This object holds the indices of the Tracks used to create the V0, the the indices of the TrackFitResults belonging to that Tracks (with material effects and hits as appropriate for the point of the intersection of the Tracks), and the fitted vertex position (to be used as a starting point for vertex fitting at analysis level).

For additional information see [BELLE2-NOTE-TE-2015-034]. --> https://docs.belle2.org/record/307 Please note that the note was written before introducing the vertex position in this object.

Definition at line 34 of file V0.h.

Constructor & Destructor Documentation

V0() [1/2]

V0 ( )

inline

Constructor without arguments; needed for I/O.

Definition at line 37 of file V0.h.

{};

V0() [2/2]

V0	(	const std::pair< const Belle2::Track *, const Belle2::TrackFitResult * > &	trackPairPositive,
		const std::pair< const Belle2::Track *, const Belle2::TrackFitResult * > &	trackPairNegative,
		double	vertexX,
		double	vertexY,
		double	vertexZ )

Constructor taking two pairs of tracks and trackFitResults, and the fitted vertex coordinates.

Definition at line 13 of file V0.cc.

                                                       :
  m_fittedVertexX(vertexX),
  m_fittedVertexY(vertexY),
  m_fittedVertexZ(vertexZ),
  m_trackIndexPositive(trackPairPositive.first->getArrayIndex()),
  m_trackIndexNegative(trackPairNegative.first->getArrayIndex()),
  m_trackFitResultIndexPositive(trackPairPositive.second->getArrayIndex()),
  m_trackFitResultIndexNegative(trackPairNegative.second->getArrayIndex())
{}

Member Function Documentation

addRelationTo() [1/4]

void addRelationTo ( const RelationsInterface< TObject > * object, float weight = 1.0, const std::string & namedRelation = "" ) const

inlineinherited

Add a relation from this object to another object (with caching).

Parameters

object	The object to which the relation should point.
weight	The weight of the relation.
namedRelation	Additional name for the relation, or "" for the default naming

Definition at line 142 of file RelationsObject.h.

    {
      if (object)
        DataStore::Instance().addRelation(this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                          object, object->m_cacheDataStoreEntry, object->m_cacheArrayIndex, weight, namedRelation);
    }

addRelationTo() [2/4]

void addRelationTo ( const RelationsInterface< TObject > * object, float weight = 1.0, const std::string & namedRelation = "" ) const

inlineinherited

Add a relation from this object to another object (with caching).

Parameters

object	The object to which the relation should point.
weight	The weight of the relation.
namedRelation	Additional name for the relation, or "" for the default naming

Definition at line 142 of file RelationsObject.h.

    {
      if (object)
        DataStore::Instance().addRelation(this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                          object, object->m_cacheDataStoreEntry, object->m_cacheArrayIndex, weight, namedRelation);
    }

addRelationTo() [3/4]

void addRelationTo ( const TObject * object, float weight = 1.0, const std::string & namedRelation = "" ) const

inlineinherited

Add a relation from this object to another object (no caching, can be quite slow).

Parameters

object	The object to which the relation should point.
weight	The weight of the relation.
namedRelation	Additional name for the relation, or "" for the default naming

Definition at line 155 of file RelationsObject.h.

    {
      StoreEntry* toEntry = nullptr;
      int toIndex = -1;
      DataStore::Instance().addRelation(this, m_cacheDataStoreEntry, m_cacheArrayIndex, object, toEntry, toIndex, weight, namedRelation);
    }

addRelationTo() [4/4]

void addRelationTo ( const TObject * object, float weight = 1.0, const std::string & namedRelation = "" ) const

inlineinherited

Add a relation from this object to another object (no caching, can be quite slow).

Parameters

object	The object to which the relation should point.
weight	The weight of the relation.
namedRelation	Additional name for the relation, or "" for the default naming

Definition at line 155 of file RelationsObject.h.

    {
      StoreEntry* toEntry = nullptr;
      int toIndex = -1;
      DataStore::Instance().addRelation(this, m_cacheDataStoreEntry, m_cacheArrayIndex, object, toEntry, toIndex, weight, namedRelation);
    }

copyRelations() [1/2]

void copyRelations ( const RelationsInterface< TObject > * sourceObj )

inlineinherited

Copies all relations of sourceObj (pointing from or to sourceObj) to this object (including weights).

Useful if you want to make a complete copy of a StoreArray object to make modifications to it, but retain all information on linked objects.

Note: this only works if sourceObj inherits from the same base (e.g. RelationsObject), and only for related objects that also inherit from the same base.

Definition at line 170 of file RelationsObject.h.

    {
      if (!sourceObj)
        return;
      auto fromRels = sourceObj->getRelationsFrom<RelationsInterface<BASE>>("ALL");
      for (unsigned int iRel = 0; iRel < fromRels.size(); iRel++) {
        fromRels.object(iRel)->addRelationTo(this, fromRels.weight(iRel));
      }
 
      auto toRels = sourceObj->getRelationsTo<RelationsInterface<BASE>>("ALL");
      for (unsigned int iRel = 0; iRel < toRels.size(); iRel++) {
        this->addRelationTo(toRels.object(iRel), toRels.weight(iRel));
      }
    }

copyRelations() [2/2]

void copyRelations ( const RelationsInterface< TObject > * sourceObj )

inlineinherited

Copies all relations of sourceObj (pointing from or to sourceObj) to this object (including weights).

Useful if you want to make a complete copy of a StoreArray object to make modifications to it, but retain all information on linked objects.

Note: this only works if sourceObj inherits from the same base (e.g. RelationsObject), and only for related objects that also inherit from the same base.

Definition at line 170 of file RelationsObject.h.

    {
      if (!sourceObj)
        return;
      auto fromRels = sourceObj->getRelationsFrom<RelationsInterface<BASE>>("ALL");
      for (unsigned int iRel = 0; iRel < fromRels.size(); iRel++) {
        fromRels.object(iRel)->addRelationTo(this, fromRels.weight(iRel));
      }
 
      auto toRels = sourceObj->getRelationsTo<RelationsInterface<BASE>>("ALL");
      for (unsigned int iRel = 0; iRel < toRels.size(); iRel++) {
        this->addRelationTo(toRels.object(iRel), toRels.weight(iRel));
      }
    }

getArrayIndex() [1/2]

int getArrayIndex ( ) const

inlineinherited

Returns this object's array index (in StoreArray), or -1 if not found.

Definition at line 385 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      return m_cacheArrayIndex;
    }

getArrayIndex() [2/2]

int getArrayIndex ( ) const

inlineinherited

Returns this object's array index (in StoreArray), or -1 if not found.

Definition at line 385 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      return m_cacheArrayIndex;
    }

getArrayName() [1/2]

std::string getArrayName ( ) const

inlineinherited

Get name of array this object is stored in, or "" if not found.

Definition at line 377 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      return m_cacheDataStoreEntry ? m_cacheDataStoreEntry->name : "";
    }

getArrayName() [2/2]

std::string getArrayName ( ) const

inlineinherited

Get name of array this object is stored in, or "" if not found.

Definition at line 377 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      return m_cacheDataStoreEntry ? m_cacheDataStoreEntry->name : "";
    }

getArrayPointer() [1/2]

TClonesArray * getArrayPointer ( ) const

inlineprotectedinherited

Returns the pointer to the raw DataStore array holding this object (protected since these arrays are easy to misuse).

Definition at line 418 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      if (!m_cacheDataStoreEntry)
        return nullptr;
      return m_cacheDataStoreEntry->getPtrAsArray();
    }

getArrayPointer() [2/2]

TClonesArray * getArrayPointer ( ) const

inlineprotectedinherited

Returns the pointer to the raw DataStore array holding this object (protected since these arrays are easy to misuse).

Definition at line 418 of file RelationsObject.h.

    {
      DataStore::Instance().findStoreEntry(this, m_cacheDataStoreEntry, m_cacheArrayIndex);
      if (!m_cacheDataStoreEntry)
        return nullptr;
      return m_cacheDataStoreEntry->getPtrAsArray();
    }

getFittedVertexPosition()

ROOT::Math::XYZVector getFittedVertexPosition ( ) const

inline

Get the fitted vertex position.

Definition at line 84 of file V0.h.

{ return ROOT::Math::XYZVector(m_fittedVertexX, m_fittedVertexY, m_fittedVertexZ); }

getFittedVertexX()

double getFittedVertexX ( ) const

inline

Get the X coordinate of the fitted vertex.

Definition at line 75 of file V0.h.

{ return m_fittedVertexX; }

getFittedVertexY()

double getFittedVertexY ( ) const

inline

Get the Y coordinate of the fitted vertex.

Definition at line 78 of file V0.h.

{ return m_fittedVertexY; }

getFittedVertexZ()

double getFittedVertexZ ( ) const

inline

Get the Z coordinate of the fitted vertex.

Definition at line 81 of file V0.h.

{ return m_fittedVertexZ; }

getInfo() [1/2]

std::string getInfo ( ) const

inlineinherited

Return a short summary of this object's contents in raw text format.

Returns the contents of getInfoHTML() while translating line-breaks etc.

Note

: You don't need to implement this function (it's not virtual), getInfoHTML() is enough.

Definition at line 370 of file RelationsObject.h.

    {
      return _RelationsInterfaceImpl::htmlToPlainText(getInfoHTML());
    }

getInfo() [2/2]

std::string getInfo ( ) const

inlineinherited

Return a short summary of this object's contents in raw text format.

Returns the contents of getInfoHTML() while translating line-breaks etc.

Note

: You don't need to implement this function (it's not virtual), getInfoHTML() is enough.

Definition at line 370 of file RelationsObject.h.

    {
      return _RelationsInterfaceImpl::htmlToPlainText(getInfoHTML());
    }

getInfoHTML() [1/2]

virtual std::string getInfoHTML ( ) const

inlinevirtualinherited

Return a short summary of this object's contents in HTML format.

Reimplement this in your own class to provide useful output for display or debugging purposes. For example, you might do something like:

std::stringstream out;
out << "<b>PDG</b>: " << m_pdg << "<br>";
out << "<b>Covariance Matrix</b>: " << HTML::getString(getCovariance5()) << "<br>";
return out.str();

See also

Particle::getInfoHTML() for a more complex example.

HTML for some utility functions.

Use getInfo() to get a raw text version of this output.

Reimplemented in Cluster, MCParticle, Particle, PIDLikelihood, RecoTrack, SoftwareTriggerResult, Track, TrackFitResult, and TRGSummary.

Definition at line 362 of file RelationsObject.h.

{ return ""; }

getInfoHTML() [2/2]

virtual std::string getInfoHTML ( ) const

inlinevirtualinherited

Return a short summary of this object's contents in HTML format.

Reimplement this in your own class to provide useful output for display or debugging purposes. For example, you might do something like:

std::stringstream out;
out << "<b>PDG</b>: " << m_pdg << "<br>";
out << "<b>Covariance Matrix</b>: " << HTML::getString(getCovariance5()) << "<br>";
return out.str();

See also

Particle::getInfoHTML() for a more complex example.

HTML for some utility functions.

Use getInfo() to get a raw text version of this output.

Reimplemented in Cluster, MCParticle, Particle, PIDLikelihood, RecoTrack, SoftwareTriggerResult, Track, TrackFitResult, and TRGSummary.

Definition at line 362 of file RelationsObject.h.

{ return ""; }

getName() [1/2]

virtual std::string getName ( ) const

inlinevirtualinherited

Return a short name that describes this object, e.g.

pi+ for an MCParticle.

Reimplemented in MCParticle, Particle, and SpacePoint.

Definition at line 344 of file RelationsObject.h.

{ return ""; }

getName() [2/2]

virtual std::string getName ( ) const

inlinevirtualinherited

Return a short name that describes this object, e.g.

pi+ for an MCParticle.

Reimplemented in MCParticle, Particle, and SpacePoint.

Definition at line 344 of file RelationsObject.h.

{ return ""; }

getRelated() [1/2]

T * getRelated ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the object to or from which this object has a relation.

Template Parameters

T	The class of objects to or from which the relation points.

Parameters

name	The name of the store array to or from which the relation points. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

The first related object or a null pointer.

Definition at line 278 of file RelationsObject.h.

    {
      return static_cast<T*>(DataStore::Instance().getRelationWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                             T::Class(), name, namedRelation).object);
    }

getRelated() [2/2]

T * getRelated ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the object to or from which this object has a relation.

Template Parameters

T	The class of objects to or from which the relation points.

Parameters

name	The name of the store array to or from which the relation points. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

The first related object or a null pointer.

Definition at line 278 of file RelationsObject.h.

    {
      return static_cast<T*>(DataStore::Instance().getRelationWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                             T::Class(), name, namedRelation).object);
    }

getRelatedFrom() [1/2]

FROM * getRelatedFrom ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the object from which this object has a relation.

Template Parameters

FROM	The class of objects from which the relation points.

Parameters

name	The name of the store array from which the relation points. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

The first related object or a null pointer.

Definition at line 263 of file RelationsObject.h.

    {
      return static_cast<FROM*>(DataStore::Instance().getRelationWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry,
                                m_cacheArrayIndex, FROM::Class(), name, namedRelation).object);
    }

getRelatedFrom() [2/2]

FROM * getRelatedFrom ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the object from which this object has a relation.

Template Parameters

FROM	The class of objects from which the relation points.

Parameters

name	The name of the store array from which the relation points. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

The first related object or a null pointer.

Definition at line 263 of file RelationsObject.h.

    {
      return static_cast<FROM*>(DataStore::Instance().getRelationWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry,
                                m_cacheArrayIndex, FROM::Class(), name, namedRelation).object);
    }

getRelatedFromWithWeight() [1/2]

std::pair< FROM *, float > getRelatedFromWithWeight ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get first related object & weight of relation pointing from an array.

Template Parameters

FROM	The class of objects from which the relation points.

Parameters

name	The name of the store array from which the relation points. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 314 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  FROM::Class(), name, namedRelation);
      return std::make_pair(static_cast<FROM*>(entry.object), entry.weight);
    }

getRelatedFromWithWeight() [2/2]

std::pair< FROM *, float > getRelatedFromWithWeight ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get first related object & weight of relation pointing from an array.

Template Parameters

FROM	The class of objects from which the relation points.

Parameters

name	The name of the store array from which the relation points. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 314 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  FROM::Class(), name, namedRelation);
      return std::make_pair(static_cast<FROM*>(entry.object), entry.weight);
    }

getRelatedTo() [1/2]

TO * getRelatedTo ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the object to which this object has a relation.

Template Parameters

TO	The class of objects to which the relation points.

Parameters

name	The name of the store array to which the relation points. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

The first related object or a null pointer.

Definition at line 248 of file RelationsObject.h.

    {
      return static_cast<TO*>(DataStore::Instance().getRelationWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                              TO::Class(), name, namedRelation).object);
    }

getRelatedTo() [2/2]

TO * getRelatedTo ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the object to which this object has a relation.

Template Parameters

TO	The class of objects to which the relation points.

Parameters

name	The name of the store array to which the relation points. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

The first related object or a null pointer.

Definition at line 248 of file RelationsObject.h.

    {
      return static_cast<TO*>(DataStore::Instance().getRelationWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                              TO::Class(), name, namedRelation).object);
    }

getRelatedToWithWeight() [1/2]

std::pair< TO *, float > getRelatedToWithWeight ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get first related object & weight of relation pointing to an array.

Template Parameters

TO	The class of objects to which the relation points.

Parameters

name	The name of the store array to which the relation points. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 297 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  TO::Class(), name, namedRelation);
      return std::make_pair(static_cast<TO*>(entry.object), entry.weight);
    }

getRelatedToWithWeight() [2/2]

std::pair< TO *, float > getRelatedToWithWeight ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get first related object & weight of relation pointing to an array.

Template Parameters

TO	The class of objects to which the relation points.

Parameters

name	The name of the store array to which the relation points. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 297 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  TO::Class(), name, namedRelation);
      return std::make_pair(static_cast<TO*>(entry.object), entry.weight);
    }

getRelatedWithWeight() [1/2]

std::pair< T *, float > getRelatedWithWeight ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get first related object & weight of relation pointing from/to an array.

Template Parameters

T	The class of objects to or from which the relation points.

Parameters

name	The name of the store array to or from which the relation points. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 331 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  T::Class(), name, namedRelation);
      return std::make_pair(static_cast<T*>(entry.object), entry.weight);
    }

getRelatedWithWeight() [2/2]

std::pair< T *, float > getRelatedWithWeight ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get first related object & weight of relation pointing from/to an array.

Template Parameters

T	The class of objects to or from which the relation points.

Parameters

name	The name of the store array to or from which the relation points. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

Pair of first related object and the relation weight, or (NULL, 1.0) if none found.

Definition at line 331 of file RelationsObject.h.

    {
      RelationEntry entry = DataStore::Instance().getRelationWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry, m_cacheArrayIndex,
                                                                  T::Class(), name, namedRelation);
      return std::make_pair(static_cast<T*>(entry.object), entry.weight);
    }

getRelationsFrom() [1/2]

RelationVector< FROM > getRelationsFrom ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the relations that point from another store array to this object.

Template Parameters

FROM	The class of objects from which the relations point.

Parameters

name	The name of the store array from which the relations point. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

A vector of relations.

Definition at line 212 of file RelationsObject.h.

    {
      return RelationVector<FROM>(DataStore::Instance().getRelationsWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry,
                                  m_cacheArrayIndex, FROM::Class(), name, namedRelation));
    }

getRelationsFrom() [2/2]

RelationVector< FROM > getRelationsFrom ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the relations that point from another store array to this object.

Template Parameters

FROM	The class of objects from which the relations point.

Parameters

name	The name of the store array from which the relations point. If empty the default store array name for class FROM will be used. If the special name "ALL" is given all store arrays containing objects of type FROM are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

A vector of relations.

Definition at line 212 of file RelationsObject.h.

    {
      return RelationVector<FROM>(DataStore::Instance().getRelationsWith(DataStore::c_FromSide, this, m_cacheDataStoreEntry,
                                  m_cacheArrayIndex, FROM::Class(), name, namedRelation));
    }

getRelationsTo() [1/2]

RelationVector< TO > getRelationsTo ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the relations that point from this object to another store array.

Template Parameters

TO	The class of objects to which the relations point.

Parameters

name	The name of the store array to which the relations point. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

A vector of relations.

Definition at line 197 of file RelationsObject.h.

    {
      return RelationVector<TO>(DataStore::Instance().getRelationsWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry,
                                m_cacheArrayIndex, TO::Class(), name, namedRelation));
    }

getRelationsTo() [2/2]

RelationVector< TO > getRelationsTo ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the relations that point from this object to another store array.

Template Parameters

TO	The class of objects to which the relations point.

Parameters

name	The name of the store array to which the relations point. If empty the default store array name for class TO will be used. If the special name "ALL" is given all store arrays containing objects of type TO are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

A vector of relations.

Definition at line 197 of file RelationsObject.h.

    {
      return RelationVector<TO>(DataStore::Instance().getRelationsWith(DataStore::c_ToSide, this, m_cacheDataStoreEntry,
                                m_cacheArrayIndex, TO::Class(), name, namedRelation));
    }

getRelationsWith() [1/2]

RelationVector< T > getRelationsWith ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the relations between this object and another store array.

Relations in both directions are returned.

Template Parameters

T	The class of objects to or from which the relations point.

Parameters

name	The name of the store array to or from which the relations point. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

A vector of relations.

Definition at line 230 of file RelationsObject.h.

    {
      return RelationVector<T>(DataStore::Instance().getRelationsWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry,
                               m_cacheArrayIndex, T::Class(), name, namedRelation));
    }

getRelationsWith() [2/2]

RelationVector< T > getRelationsWith ( const std::string & name = "", const std::string & namedRelation = "" ) const

inlineinherited

Get the relations between this object and another store array.

Relations in both directions are returned.

Template Parameters

T	The class of objects to or from which the relations point.

Parameters

name	The name of the store array to or from which the relations point. If empty the default store array name for class T will be used. If the special name "ALL" is given all store arrays containing objects of type T are considered.
namedRelation	Additional name for the relation, or "" for the default naming

Returns

A vector of relations.

Definition at line 230 of file RelationsObject.h.

    {
      return RelationVector<T>(DataStore::Instance().getRelationsWith(DataStore::c_BothSides, this, m_cacheDataStoreEntry,
                               m_cacheArrayIndex, T::Class(), name, namedRelation));
    }

getTrackFitResultIndices()

std::pair< short, short > getTrackFitResultIndices ( ) const

inline

Get indices of the TrackFitResults, that are part of the V0 particle.

Definition at line 65 of file V0.h.

    {
      return std::make_pair(m_trackFitResultIndexPositive, m_trackFitResultIndexNegative);
    }

getTrackFitResults()

std::pair< TrackFitResult *, TrackFitResult * > getTrackFitResults ( ) const

inline

Get pair of the TrackFitResults, that are part of the V0 particle.

Definition at line 58 of file V0.h.

    {
      StoreArray<TrackFitResult> trackFitResults;
      return std::make_pair(trackFitResults[m_trackFitResultIndexPositive], trackFitResults[m_trackFitResultIndexNegative]);
    }

getTrackIndices()

std::pair< short, short > getTrackIndices ( ) const

inline

Get indices of the Tracks, that are part of the V0 particle.

Definition at line 52 of file V0.h.

    {
      return std::make_pair(m_trackIndexPositive, m_trackIndexNegative);
    }

getTracks()

std::pair< Track *, Track * > getTracks ( ) const

inline

Get pair of the Tracks, that are part of the V0 particle.

Definition at line 45 of file V0.h.

    {
      StoreArray<Track> tracks;
      return std::make_pair(tracks[m_trackIndexPositive], tracks[m_trackIndexNegative]);
    }

getV0Hypothesis()

Const::ParticleType getV0Hypothesis

(

)

const

Get the hypothesis under which the V0 particle was created.

This does not use an MC information, but just checks the particle type in the corresponding TrackFitResults.

Definition at line 25 of file V0.cc.

{
  StoreArray<TrackFitResult> trackFitResults{};
  const auto posParticleType = trackFitResults[m_trackFitResultIndexPositive]->getParticleType();
  const auto negParticleType = trackFitResults[m_trackFitResultIndexNegative]->getParticleType();
 
  if ((posParticleType == Const::pion) && (negParticleType == Const::pion)) {
    return Const::Kshort;
  }
  if ((posParticleType == Const::proton) && (negParticleType == Const::pion)) {
    return Const::Lambda;
  }
  if ((posParticleType == Const::pion) && (negParticleType == Const::proton)) {
    return Const::antiLambda;
  }
  if ((posParticleType == Const::electron) && (negParticleType == Const::electron)) {
    return Const::photon;
  }
  return Const::unspecifiedParticle;
}

Friends And Related Symbol Documentation

FixMergedObjectsModule

friend class FixMergedObjectsModule

friend

Definition at line 111 of file V0.h.

Member Data Documentation

m_cacheArrayIndex [1/2]

int m_cacheArrayIndex

mutableprivateinherited

Cache of the index in the TClonesArray to which this object belongs.

Definition at line 432 of file RelationsObject.h.

m_cacheArrayIndex [2/2]

int m_cacheArrayIndex

mutableprivateinherited

Cache of the index in the TClonesArray to which this object belongs.

Definition at line 432 of file RelationsObject.h.

m_cacheDataStoreEntry [1/2]

DataStore::StoreEntry* m_cacheDataStoreEntry

mutableprivateinherited

Cache of the data store entry to which this object belongs.

Definition at line 429 of file RelationsObject.h.

m_cacheDataStoreEntry [2/2]

DataStore::StoreEntry* m_cacheDataStoreEntry

mutableprivateinherited

Cache of the data store entry to which this object belongs.

Definition at line 429 of file RelationsObject.h.

m_fittedVertexX

Double32_t m_fittedVertexX = 0.0

private

The X coordinate of the fitted vertex.

Definition at line 88 of file V0.h.

m_fittedVertexY

Double32_t m_fittedVertexY = 0.0

private

The Y coordinate of the fitted vertex.

Definition at line 91 of file V0.h.

m_fittedVertexZ

Double32_t m_fittedVertexZ = 0.0

private

The Z coordinate of the fitted vertex.

Definition at line 94 of file V0.h.

m_trackFitResultIndexNegative

short m_trackFitResultIndexNegative = -1

private

Points to the new TrackFitResult of the positive Track.

Definition at line 106 of file V0.h.

m_trackFitResultIndexPositive

short m_trackFitResultIndexPositive = -1

private

Points to the new TrackFitResult of the positive Track.

Definition at line 103 of file V0.h.

m_trackIndexNegative

short m_trackIndexNegative = -1

private

Indicates which negatively charged track was used for this V0.

Definition at line 100 of file V0.h.

m_trackIndexPositive

short m_trackIndexPositive = -1

private

Indicates which positively charged track was used for this V0.

Definition at line 97 of file V0.h.

---

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

• mdst/dataobjects/include/V0.h
• mdst/dataobjects/src/V0.cc