MakeMotherKFit is a class to build mother particle from kinematically fitted daughters. More...

#include <MakeMotherKFit.h>

Collaboration diagram for MakeMotherKFit:

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Public Member Functions
	MakeMotherKFit (void)
	Construct an object with no argument.

	~MakeMotherKFit (void)
	Destruct the object.

enum KFitError::ECode	addTrack (const KFitTrack &kp)
	Add a track to the make-mother object. More...

enum KFitError::ECode	addTrack (const CLHEP::HepLorentzVector &p, const HepPoint3D &x, const CLHEP::HepSymMatrix &e, const double q, const int flag=KFitConst::kAfterFit)
	Add a track to the make-mother object with specifying its momentum, position, error matrix, and charge. More...

enum KFitError::ECode	setMagneticField (const double mf)
	Change a magnetic field from the default value KFitConst::kDefaultMagneticField. More...

enum KFitError::ECode	setVertex (const HepPoint3D &v)
	Set a vertex position of the mother particle. More...

enum KFitError::ECode	setVertexError (const CLHEP::HepSymMatrix &e)
	Set a vertex error matrix of the mother particle. More...

enum KFitError::ECode	setTrackVertexError (const CLHEP::HepMatrix &e)
	Set a vertex error matrix of the child particle in the addTrack'ed order. More...

enum KFitError::ECode	setTrackZeroVertexError (void)
	Indicate no vertex uncertainty in the child particle in the addTrack'ed order. More...

enum KFitError::ECode	setCorrelation (const CLHEP::HepMatrix &e)
	Set a correlation matrix. More...

enum KFitError::ECode	setZeroCorrelation (void)
	Indicate no correlation between tracks. More...

enum KFitError::ECode	setFlagAtDecayPoint (const bool flag)
	Set a flag to control computational point for the mother particle property at the decay point or not. More...

enum KFitError::ECode	setFlagBeforeAfter (const int flag)
	Set a flag to control computational parameters for the mother particle property before or after the fit. More...

enum KFitError::ECode	getErrorCode (void) const
	Get a code of the last error. More...

const KFitTrack	getMother (void) const
	Get a track object of the mother particle. More...

const CLHEP::HepLorentzVector	getMotherMomentum (void) const
	Get a Lorentz vector of the mother particle. More...

const HepPoint3D	getMotherPosition (void) const
	Get a position of the mother particle. More...

const CLHEP::HepSymMatrix	getMotherError (void) const
	Get an error matrix of the mother particle. More...

enum KFitError::ECode	doMake (void)
	Perform a reconstruction of mother particle. More...

Private Member Functions
void	calculateError (CLHEP::HepSymMatrix *Ec) const
	Make a matrix to calculate error matrix of the mother particle. More...

void	calculateDELMDELC (CLHEP::HepMatrix *e) const
	Make delMdelC to calculate error matrix of the mother particle. More...

Private Attributes
enum KFitError::ECode	m_ErrorCode
	Error code.

bool	m_FlagAtDecayPoint
	Flag controlled by setFlagAtDecayPoint().

int	m_FlagBeforeAfter
	Flag controlled by setFlagBeforeAfter().

bool	m_FlagVertexError
	Flag to indicate if the vertex error matrix of the mother particle is preset.

bool	m_FlagCorrelation
	Flag to indicate if the correlation matrix among the child particles is preset.

bool	m_FlagTrackVertexError
	Flag to indicate if the vertex error matrix of the child particle is preset.

double	m_MagneticField
	Magnetic field.

int	m_TrackCount
	Number of tracks.

std::vector< KFitTrack >	m_Tracks
	Array of track objects of the child particles.

std::vector< CLHEP::HepMatrix >	m_TrackVertexError
	Array of vertex error matrices of the child particles.

std::vector< CLHEP::HepMatrix >	m_Correlation
	Array of correlation matrices among the child particles.

CLHEP::Hep3Vector	m_Vertex
	Vertex position of the mother particle.

CLHEP::HepSymMatrix	m_VertexError
	Vertex error matrix of the mother particle.

double	m_Charge
	Charge of the mother particle.

KFitTrack	m_Mother
	Track object of the mother particle.

Detailed Description

MakeMotherKFit is a class to build mother particle from kinematically fitted daughters.

Definition at line 40 of file MakeMotherKFit.h.

Member Function Documentation

◆ addTrack() [1/2]

enum KFitError::ECode addTrack	(	const CLHEP::HepLorentzVector &	p,
		const HepPoint3D &	x,
		const CLHEP::HepSymMatrix &	e,
		const double	q,
		const int	flag = `KFitConst::kAfterFit`
	)

Add a track to the make-mother object with specifying its momentum, position, error matrix, and charge.

This function internally calls addTrack(const KFitTrack &kp).

Parameters

p	Lorentz vector of the track
x	position of the track
e	(7x7) error matrix of the track
q	charge of the track
flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Returns: error code (zero if success)

◆ addTrack() [2/2]

enum KFitError::ECode addTrack ( const KFitTrack & kp )

Add a track to the make-mother object.

Parameters

kp	object of the track

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

                                            {
   m_Tracks.push_back(p);
   m_Charge += p.getCharge();
   m_TrackCount = m_Tracks.size();
  
   return m_ErrorCode = KFitError::kNoError;
 }

◆ calculateDELMDELC()

void calculateDELMDELC ( CLHEP::HepMatrix * e ) const

private

Make delMdelC to calculate error matrix of the mother particle.

Parameters

e	delMdelC container

Definition at line 305 of file MakeMotherKFit.cc.

◆ calculateError()

void calculateError ( CLHEP::HepSymMatrix * Ec ) const

private

Make a matrix to calculate error matrix of the mother particle.

Parameters

Ec	error matrix container

Definition at line 253 of file MakeMotherKFit.cc.

◆ doMake()

enum KFitError::ECode doMake ( void )

Perform a reconstruction of mother particle.

Returns: error code (zero if success)

Definition at line 184 of file MakeMotherKFit.cc.

◆ getErrorCode()

enum KFitError::ECode getErrorCode ( void ) const

Get a code of the last error.

Returns: error code

Definition at line 35 of file MakeMotherKFit.cc.

◆ getMother()

const KFitTrack getMother ( void ) const

Get a track object of the mother particle.

Returns: track object of the mother particle

Definition at line 163 of file MakeMotherKFit.cc.

◆ getMotherError()

const HepSymMatrix getMotherError ( void ) const

Get an error matrix of the mother particle.

Returns: error matrix of the mother particle

Definition at line 184 of file MakeMotherKFit.cc.

◆ getMotherMomentum()

const HepLorentzVector getMotherMomentum ( void ) const

Get a Lorentz vector of the mother particle.

Returns: Lorentz vector of the mother particle

Definition at line 170 of file MakeMotherKFit.cc.

◆ getMotherPosition()

const HepPoint3D getMotherPosition ( void ) const

Get a position of the mother particle.

Returns: position of the mother particle

Definition at line 177 of file MakeMotherKFit.cc.

◆ setCorrelation()

enum KFitError::ECode setCorrelation ( const CLHEP::HepMatrix & e )

Set a correlation matrix.

Parameters

e	(7x7) correlation matrix

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

◆ setFlagAtDecayPoint()

enum KFitError::ECode setFlagAtDecayPoint ( const bool flag )

Set a flag to control computational point for the mother particle property at the decay point or not.

Parameters

flag	true for yes, false for no

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

◆ setFlagBeforeAfter()

enum KFitError::ECode setFlagBeforeAfter ( const int flag )

Set a flag to control computational parameters for the mother particle property before or after the fit.

Parameters

flag	KFitConst::kBeforeFit or KFitConst::kAfterFit

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

◆ setMagneticField()

enum KFitError::ECode setMagneticField ( const double mf )

Change a magnetic field from the default value KFitConst::kDefaultMagneticField.

Parameters

mf	magnetic field to set

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

◆ setTrackVertexError()

enum KFitError::ECode setTrackVertexError ( const CLHEP::HepMatrix & e )

Set a vertex error matrix of the child particle in the addTrack'ed order.

Parameters

e	(3x7) vertex error matrix

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

◆ setTrackZeroVertexError()

enum KFitError::ECode setTrackZeroVertexError ( void )

Indicate no vertex uncertainty in the child particle in the addTrack'ed order.

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

◆ setVertex()

enum KFitError::ECode setVertex ( const HepPoint3D & v )

Set a vertex position of the mother particle.

Parameters

v	vertex position

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

◆ setVertexError()

enum KFitError::ECode setVertexError ( const CLHEP::HepSymMatrix & e )

Set a vertex error matrix of the mother particle.

Parameters

e	(3x3) vertex error matrix

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

◆ setZeroCorrelation()

enum KFitError::ECode setZeroCorrelation ( void )

Indicate no correlation between tracks.

Returns: error code (zero if success)

Definition at line 35 of file MakeMotherKFit.cc.

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

analysis/VertexFitting/KFit/include/MakeMotherKFit.h
analysis/VertexFitting/KFit/src/MakeMotherKFit.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Function Documentation

◆ addTrack() [1/2]

◆ addTrack() [2/2]

◆ calculateDELMDELC()

◆ calculateError()

◆ doMake()

◆ getErrorCode()

◆ getMother()

◆ getMotherError()

◆ getMotherMomentum()

◆ getMotherPosition()

◆ setCorrelation()

◆ setFlagAtDecayPoint()

◆ setFlagBeforeAfter()

◆ setMagneticField()

◆ setTrackVertexError()

◆ setTrackZeroVertexError()

◆ setVertex()

◆ setVertexError()

◆ setZeroCorrelation()