WTrackParameter Class Reference

#include <WTrackParameter.h>

Public Member Functions
	WTrackParameter ()
	~WTrackParameter ()
	WTrackParameter (const WTrackParameter &wtrk)
WTrackParameter &	operator= (const WTrackParameter &wtrk)
	WTrackParameter (const int charge, const HepLorentzVector &p, const HepPoint3D &x, const double err[])
	WTrackParameter (const int charge, const HepLorentzVector &p, const HepPoint3D &x, const HepSymMatrix &err)
	WTrackParameter (const double mass, const HepVector &helix, const double err[])
	WTrackParameter (const double mass, const HepVector &helix, const HepSymMatrix &err)
	WTrackParameter (const HepPoint3D &x, const HepLorentzVector &p, const double dphi, const double dtheta, const double dE)
	WTrackParameter (const HepLorentzVector &p, const double dphi, const double dtheta, const double dE)
void	setW (const HepVector &w)
void	setW (const int n, const double w)
void	setEw (const HepSymMatrix &Ew)
void	setCharge (const int charge)
void	setMass (const double mass)
void	setType (const int type)
void	setVplm (const HepSymMatrix &Vplm)
void	setPlmp (const HepVector &plmp)
int	type () const
int	charge () const
double	mass () const
bool	IsInvariableMass () const
double	phi () const
double	Lambda () const
HepVector	w () const
HepSymMatrix	Ew () const
HepLorentzVector	p () const
HepSymMatrix	Ep () const
HepPoint3D	x () const
HepVector	X () const
HepSymMatrix	Ex () const
HepVector	philambdamass ()
HepSymMatrix	Vplm () const
HepVector	plmp () const

Detailed Description

Definition at line 31 of file WTrackParameter.h.

Constructor & Destructor Documentation

WTrackParameter() [1/8]

WTrackParameter::WTrackParameter

(

)

Definition at line 3 of file WTrackParameter.cxx.

{
    m_w      = HepVector(7, 0);
    m_Ew     = HepSymMatrix(7, 0);
    m_charge = 0;
    m_type   = 1;
    m_mass   = 0;
    m_massInvariable = true;
}

Referenced by WTrackParameter().

~WTrackParameter()

WTrackParameter::~WTrackParameter ( )

inline

Definition at line 36 of file WTrackParameter.h.

{;}

WTrackParameter() [2/8]

WTrackParameter::WTrackParameter

(

const WTrackParameter &

wtrk

)

Definition at line 13 of file WTrackParameter.cxx.

{
    m_charge = wtrk.m_charge;
    m_w      = wtrk.m_w;
    m_Ew     = wtrk.m_Ew;
    m_type   = wtrk.m_type;
    m_plmp   = wtrk.m_plmp;
    m_Vplm   = wtrk.m_Vplm;
    m_mass   = wtrk.m_mass;
    m_massInvariable = wtrk.m_massInvariable;
}

WTrackParameter() [3/8]

WTrackParameter::WTrackParameter	(	const int	charge,
		const HepLorentzVector &	p,
		const HepPoint3D &	x,
		const double	err[]
	)

Definition at line 53 of file WTrackParameter.cxx.

{
    HepSymMatrix error(5, 0);
    int k = 0;
    for (int i = 0; i < 5; i++) 
    {
        for(int j = i; j < 5; j++) 
        {
            error[i][j] = err[k];
            error[j][i] = err[k];
            k++;
        }
    }
    *this = WTrackParameter(charge, p, x, error);
}

WTrackParameter() [4/8]

WTrackParameter::WTrackParameter	(	const int	charge,
		const HepLorentzVector &	p,
		const HepPoint3D &	x,
		const HepSymMatrix &	err
	)

Definition at line 69 of file WTrackParameter.cxx.

{
    m_w      = HepVector(7, 0);
    m_Ew     = HepSymMatrix(7, 0);
    m_charge = charge;
    m_type   = 1;
    m_mass   = p.m();
    m_massInvariable = true;
    for (int i = 0; i < 4; i++)
        m_w[i] = p[i];
    for (int i = 0; i < 3; i++)
        m_w[i+4] = x[i];
 
    HepVector helix(5, 0);
    double phi0 = atan2(-p[0], p[1]);
    if (cos(phi0) != 0)
        helix[0] = x[0] / cos(phi0);
    else
        helix[0] = x[1] / sin(phi0);
    helix[1] = phi0;
    helix[2] = charge/p.perp();
    helix[3] = x[3];
    helix[4] = p[3]/p.perp();
    HepMatrix dWdA(7, 5, 0);
    dWdA = GetCvtMatrix(p.m(), helix);
    m_Ew = err.similarity(dWdA);
}

WTrackParameter() [5/8]

WTrackParameter::WTrackParameter	(	const double	mass,
		const HepVector &	helix,
		const double	err[]
	)

Definition at line 97 of file WTrackParameter.cxx.

{ 
    HepSymMatrix error(5, 0);
    int k = 0;
    for(int i = 0; i < 5; i++) 
    {
        for(int j = i; j < 5; j++) 
        {
            error[i][j] = err[k];
            error[j][i] = err[k];
            k++;
        }
    }
    *this = WTrackParameter(mass, hel, error);
}

WTrackParameter() [6/8]

WTrackParameter::WTrackParameter	(	const double	mass,
		const HepVector &	helix,
		const HepSymMatrix &	err
	)

Definition at line 114 of file WTrackParameter.cxx.

{
    m_type   = 1;
    m_mass   = mass;
    m_w      = HepVector(7, 0);
    m_Ew     = HepSymMatrix(7, 0);
    HepMatrix dWdA(7, 5, 0);
    dWdA     = GetCvtMatrix(mass, hel);
    m_Ew     = err.similarity(dWdA);
    m_w      = CvtH2W(mass, hel);
    m_charge = hel[2] > 0 ? +1 : -1;
    m_massInvariable = true;
}

WTrackParameter() [7/8]

WTrackParameter::WTrackParameter	(	const HepPoint3D &	x,
		const HepLorentzVector &	p,
		const double	dphi,
		const double	dtheta,
		const double	dE
	)

Definition at line 135 of file WTrackParameter.cxx.

{
    m_w      = HepVector(7, 0);
    m_Ew     = HepSymMatrix(7, 0);
    m_type   = 2;
    m_mass   = p.m();
    m_charge = 0;
    m_massInvariable = true;
    for (int i = 0; i< 4; i++)
        m_w[i] = p[i];
    for (int i = 0; i< 3; i++)
        m_w[i+4] = x[i];
    
    HepMatrix dwda(7, 3, 0);
    dwda[0][0] = -p.py();
    dwda[1][0] = p.px();
    dwda[4][0] = -x.y();
    dwda[5][0] = x.x();
 
    dwda[0][1] = p.px()*p.pz()/p.perp();
    dwda[1][1] = p.py()*p.pz()/p.perp();
    dwda[2][1] = -p.perp();
    dwda[6][1] = -x.distance2()/sqrt(x.x()*x.x()+x.y()*x.y());
 
    dwda[0][2] = p.px()/p.rho();
    dwda[1][2] = p.py()/p.rho();
    dwda[2][2] = p.pz()/p.rho();
    dwda[3][2] = p.rho()/p.e();
    // dwda[4][2] = x.x()/(x.x()*x.x()+x.y()*x.y());
    // dwda[5][2] = x.y()/(x.x()*x.x()+x.y()*x.y());
    // dwda[6][2] = x.z()/(x.x()*x.x()+x.y()*x.y());
 
    HepSymMatrix emcmea(3, 0);
    emcmea[0][0] = dphi * dphi;
    emcmea[1][1] = dthe * dthe;
    emcmea[2][2] = dE * dE;
    m_Ew = emcmea.similarity(dwda);
}

WTrackParameter() [8/8]

WTrackParameter::WTrackParameter	(	const HepLorentzVector &	p,
		const double	dphi,
		const double	dtheta,
		const double	dE
	)

Definition at line 128 of file WTrackParameter.cxx.

{
    HepPoint3D x(0, 0, 0);
    *this = WTrackParameter(x, p, dphi, dthe, dE);
}

Member Function Documentation

charge()

int WTrackParameter::charge ( ) const

inline

Definition at line 62 of file WTrackParameter.h.

{return m_charge;}

Referenced by HTrackParameter::HTrackParameter(), VertexFit::pull(), setCharge(), VertexConstraints::UpdateConstraints(), and WTrackParameter().

Ep()

HepSymMatrix WTrackParameter::Ep ( ) const

inline

Definition at line 70 of file WTrackParameter.h.

{return m_Ew.sub(1, 4); }

Ew()

HepSymMatrix WTrackParameter::Ew ( ) const

inline

Definition at line 68 of file WTrackParameter.h.

{return m_Ew;}

Referenced by TrackPool::AddMissTrack(), TrackPool::AddTrack(), KShortReconstruction::execute(), LambdaReconstruction::execute(), HTrackParameter::HTrackParameter(), and setEw().

Ex()

HepSymMatrix WTrackParameter::Ex ( ) const

inline

Definition at line 73 of file WTrackParameter.h.

{return m_Ew.sub(5, 7); }

IsInvariableMass()

bool WTrackParameter::IsInvariableMass ( ) const

inline

Definition at line 64 of file WTrackParameter.h.

{return m_massInvariable;}

Lambda()

double WTrackParameter::Lambda ( ) const

inline

Definition at line 66 of file WTrackParameter.h.

{return w()[2]/sqrt(w()[0]*w()[0] + w()[1]*w()[1]);}

Referenced by TrackPool::AddMissTrack().

mass()

double WTrackParameter::mass ( ) const

inline

Definition at line 63 of file WTrackParameter.h.

{return m_mass;} 

Referenced by VertexFit::pull(), setMass(), and WTrackParameter().

operator=()

WTrackParameter & WTrackParameter::operator=

(

const WTrackParameter &

wtrk

)

Definition at line 25 of file WTrackParameter.cxx.

{
    if (this == &wtrk)
        return *this;
    m_charge = wtrk.m_charge;
    m_type   = wtrk.m_type;
    m_w      = wtrk.m_w;
    m_Ew     = wtrk.m_Ew;
    m_plmp   = wtrk.m_plmp;
    m_Vplm   = wtrk.m_Vplm;
    m_mass   = wtrk.m_mass;
    m_massInvariable = wtrk.m_massInvariable;
    return *this;
}

p()

HepLorentzVector WTrackParameter::p ( ) const

inline

Definition at line 69 of file WTrackParameter.h.

{return HepLorentzVector(m_w[0], m_w[1], m_w[2], m_w[3]);}

Referenced by DQAKsKpi::execute(), DQASelBhabha::execute(), DQASelDimu::execute(), DQASelHadron::execute(), KShortReconstruction::execute(), LambdaReconstruction::execute(), HTrackParameter::HTrackParameter(), philambdamass(), VertexConstraints::UpdateConstraints(), and WTrackParameter().

phi()

double WTrackParameter::phi ( ) const

inline

Definition at line 65 of file WTrackParameter.h.

{return atan(w()[1]/(w()[0]));}

philambdamass()

HepVector WTrackParameter::philambdamass

(

)

Definition at line 40 of file WTrackParameter.cxx.

{
    HepVector tmp(4,0);
    if (w()[1] >= 0)
        tmp[0] = atan(w()[1]/(w()[0]));
    else 
        tmp[0] = atan(w()[1]/(w()[0])) + 3.1415926;
    tmp[1] = w()[2]/sqrt(w()[0]*w()[0] + w()[1]*w()[1]);
    tmp[2] = p().m();
    tmp[3] = sqrt(w()[3]*w()[3] - p().m()*p().m());
    return tmp;
}

plmp()

HepVector WTrackParameter::plmp ( ) const

inline

Definition at line 76 of file WTrackParameter.h.

{return m_plmp;}

Referenced by setPlmp().

setCharge()

void WTrackParameter::setCharge ( const int  charge )

inline

Definition at line 54 of file WTrackParameter.h.

{m_charge = charge;}

Referenced by KalmanKinematicFit::BuildVirtualParticle(), KinematicFit::BuildVirtualParticle(), VertexFit::BuildVirtualParticle(), SecondVertexFit::Fit(), VertexFit::pull(), HTrackParameter::wTrack(), and KalmanVertexFit::wTrack().

setEw()

void WTrackParameter::setEw ( const HepSymMatrix &  Ew )

inline

Definition at line 53 of file WTrackParameter.h.

{m_Ew = Ew;}

Referenced by TrackPool::AddMissTrack(), TrackPool::AddTrack(), KalmanKinematicFit::BuildVirtualParticle(), KinematicFit::BuildVirtualParticle(), VertexFit::BuildVirtualParticle(), SecondVertexFit::Fit(), KalmanKinematicFit::pull(), KinematicFit::pull(), VertexFit::pull(), HTrackParameter::wTrack(), and KalmanVertexFit::wTrack().

setMass()

void WTrackParameter::setMass ( const double  mass )

inline

Definition at line 55 of file WTrackParameter.h.

{m_mass = mass;}

Referenced by TrackPool::AddMissTrack(), KalmanKinematicFit::BuildVirtualParticle(), and KinematicFit::BuildVirtualParticle().

setPlmp()

void WTrackParameter::setPlmp ( const HepVector &  plmp )

inline

Definition at line 58 of file WTrackParameter.h.

{m_plmp = plmp;}

Referenced by TrackPool::AddMissTrack(), and TrackPool::AddTrack().

setType()

void WTrackParameter::setType ( const int  type )

inline

Definition at line 56 of file WTrackParameter.h.

{m_type = type;}

Referenced by TrackPool::AddMissTrack().

setVplm()

void WTrackParameter::setVplm ( const HepSymMatrix &  Vplm )

inline

Definition at line 57 of file WTrackParameter.h.

{m_Vplm = Vplm;}

Referenced by TrackPool::AddMissTrack(), and TrackPool::AddTrack().

setW() [1/2]

void WTrackParameter::setW ( const HepVector &  w )

inline

Definition at line 51 of file WTrackParameter.h.

{m_w = w; m_mass = sqrt(w[3]*w[3] - w[2]*w[2] - w[1]*w[1] - w[0]*w[0]);}

Referenced by TrackPool::AddMissTrack(), TrackPool::AddTrack(), KalmanKinematicFit::BuildVirtualParticle(), KinematicFit::BuildVirtualParticle(), VertexFit::BuildVirtualParticle(), SecondVertexFit::Fit(), KalmanKinematicFit::pull(), KinematicFit::pull(), VertexFit::pull(), HTrackParameter::wTrack(), and KalmanVertexFit::wTrack().

setW() [2/2]

void WTrackParameter::setW ( const int  n, const double  w  )

inline

Definition at line 52 of file WTrackParameter.h.

{m_w[n] = w;}

type()

int WTrackParameter::type ( ) const

inline

Definition at line 61 of file WTrackParameter.h.

{return m_type;}

Referenced by setType().

Vplm()

HepSymMatrix WTrackParameter::Vplm ( ) const

inline

Definition at line 75 of file WTrackParameter.h.

{return m_Vplm;}

Referenced by setVplm().

w()

HepVector WTrackParameter::w ( ) const

inline

Definition at line 67 of file WTrackParameter.h.

{return m_w;}

Referenced by KShortReconstruction::execute(), LambdaReconstruction::execute(), HTrackParameter::HTrackParameter(), Lambda(), K0kk::MTotal(), K0kpi::MTotal(), K0pi0::MTotal(), K0pipi::MTotal(), K0pipipi0::MTotal(), K3pi::MTotal(), K3pipi0::MTotal(), Kk::MTotal(), Kkpi0::MTotal(), Kkpipi::MTotal(), Kpi::MTotal(), Kpipi0::MTotal(), Kpipi0pi0::MTotal(), Pipi::MTotal(), Pipipi0::MTotal(), phi(), philambdamass(), and setW().

x()

HepPoint3D WTrackParameter::x ( ) const

inline

Definition at line 71 of file WTrackParameter.h.

{return HepPoint3D(m_w[4], m_w[5], m_w[6]);}

Referenced by VertexConstraints::UpdateConstraints(), and WTrackParameter().

X()

HepVector WTrackParameter::X ( ) const

inline

Definition at line 72 of file WTrackParameter.h.

{return m_w.sub(5, 7); }

Referenced by VertexConstraints::UpdateConstraints().

---

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

• WTrackParameter.h
• WTrackParameter.cxx