KinematicParameters Class Reference

#include <KinematicParameters.h>

Public Types
typedef ROOT::Math::SVector< double, 7 >	AlgebraicVector7

Public Member Functions
double	energy () const
bool	isValid () const
	KinematicParameters ()
template<typename... Args>
	KinematicParameters (Args... args)
	KinematicParameters (const AlgebraicVector7 &pr)
double	mass () const
GlobalVector	momentum () const
double	operator() (const int i) const
	Allows to access directly one component of the vector (index between 0 and 6) More...
GlobalPoint	position () const
AlgebraicVector7 const &	vector () const
	The full vector (7 elements) More...

Private Attributes
AlgebraicVector7	par
bool	vl

Detailed Description

Class to store the 7-vector of particle parameters: (x,y,z,p_x,p_y,p_z,m)

Kirill Prokofiev Febrauary 2003

Definition at line 15 of file KinematicParameters.h.

Member Typedef Documentation

AlgebraicVector7

typedef ROOT::Math::SVector<double, 7> KinematicParameters::AlgebraicVector7

Definition at line 17 of file KinematicParameters.h.

Constructor & Destructor Documentation

KinematicParameters() [1/3]

KinematicParameters::KinematicParameters ( )

inline

Definition at line 19 of file KinematicParameters.h.

: vl(false) {}

KinematicParameters() [2/3]

template<typename... Args>

KinematicParameters::KinematicParameters ( Args...  args )

inline

Definition at line 22 of file KinematicParameters.h.

: par(args...), vl(true) {}

KinematicParameters() [3/3]

KinematicParameters::KinematicParameters ( const AlgebraicVector7 &  pr )

inline

Definition at line 24 of file KinematicParameters.h.

: par(pr), vl(true) {}

Member Function Documentation

energy()

double KinematicParameters::energy ( void  ) const

inline

The energy of the particle

Definition at line 58 of file KinematicParameters.h.

{ return sqrt(par(3) * par(3) + par(4) * par(4) + par(5) * par(5) + par(6) * par(6)); }

References par, and mathSSE::sqrt().

Referenced by Jet.Jet::rawEnergy().

isValid()

bool KinematicParameters::isValid ( void  ) const

inline

Definition at line 60 of file KinematicParameters.h.

{ return vl; }

References vl.

Referenced by ntupleDataFormat._Object::_checkIsValid(), and core.AutoHandle.AutoHandle::ReallyLoad().

mass()

double KinematicParameters::mass ( ) const

inline

The mass of the particle

Definition at line 53 of file KinematicParameters.h.

{ return par(6); }

References par.

Referenced by Particle.Particle::__str__(), and DiObject.DiMuon::__str__().

momentum()

GlobalVector KinematicParameters::momentum ( ) const

inline

The momentum vector

Definition at line 43 of file KinematicParameters.h.

{ return GlobalVector(par[3], par[4], par[5]); }

References par.

Referenced by BPHWriteSpecificDecay::write().

operator()()

double KinematicParameters::operator() ( const int  i ) const

inline

Allows to access directly one component of the vector (index between 0 and 6)

The order of the parameters is (x,y,z,p_x,p_y,p_z,m)

Definition at line 38 of file KinematicParameters.h.

{ return par(i); }

References mps_fire::i, and par.

position()

GlobalPoint KinematicParameters::position ( ) const

inline

The position of the state

Definition at line 48 of file KinematicParameters.h.

{ return GlobalPoint(par[0], par[1], par[2]); }

References par.

Referenced by VirtualKinematicParticle::stateAtPoint().

vector()

AlgebraicVector7 const& KinematicParameters::vector ( ) const

inline

The full vector (7 elements)

The order of the parameters is (x,y,z,p_x,p_y,p_z,m)

Definition at line 31 of file KinematicParameters.h.

{ return par; }

References par.

Referenced by KinematicConstrainedVertexFitter::fit(), KinematicConstrainedVertexFitterT< nTrk, nConstraint >::fit(), KinematicRefittedTrackState::kinematicParameters(), and KinematicState::mass().

Member Data Documentation

par

AlgebraicVector7 KinematicParameters::par

private

Definition at line 63 of file KinematicParameters.h.

Referenced by energy(), mass(), momentum(), operator()(), position(), and vector().

vl

bool KinematicParameters::vl

private

Definition at line 64 of file KinematicParameters.h.

Referenced by isValid().