#include <Particle.h>

Public Types
typedef int	Charge
	electric charge type
typedef math::XYZTLorentzVector	LorentzVector
	Lorentz vector.
typedef math::XYZPoint	Point
	point in the space
typedef math::PtEtaPhiMLorentzVector	PolarLorentzVector
	Lorentz vector.
typedef math::XYZVector	Vector
	point in the space
Public Member Functions
Vector	boostToCM () const
int	charge () const
	electric charge
double	energy () const
	energy
double	et () const
	transverse energy
double	eta () const
	momentum pseudorapidity
bool	longLived () const
	is long lived?
double	mass () const
	mass
double	massSqr () const
	mass squared
Vector	momentum () const
	spatial momentum vector
double	mt () const
	transverse mass
double	mtSqr () const
	transverse mass squared
double	p () const
	magnitude of momentum vector
const LorentzVector &	p4 () const
	four-momentum Lorentz vector
	Particle ()
	default constructor
	Particle (Charge q, const LorentzVector &p4, const Point &vertex=Point(0, 0, 0), int pdgId=0, int status=0, bool integerCharge=true)
	constructor from values
	Particle (Charge q, const PolarLorentzVector &p4, const Point &vertex=Point(0, 0, 0), int pdgId=0, int status=0, bool integerCharge=true)
	constructor from values
int	pdgId () const
	PDG identifier.
double	phi () const
	momentum azimuthal angle
const PolarLorentzVector &	polarP4 () const
	four-momentum Lorentz vector
double	pt () const
	transverse momentum
double	px () const
	x coordinate of momentum vector
double	py () const
	y coordinate of momentum vector
double	pz () const
	z coordinate of momentum vector
double	rapidity () const
	repidity
void	setCharge (Charge q)
	set electric charge
void	setLongLived ()
	set long lived flag
void	setMass (double m)
	set particle mass
void	setP4 (const PolarLorentzVector &p4)
	set 4-momentum
void	setP4 (const LorentzVector &p4)
	set 4-momentum
void	setPdgId (int pdgId)
void	setPz (double pz)
void	setStatus (int status)
	set status word
void	setThreeCharge (Charge qx3)
	set electric charge
void	setVertex (const Point &vertex)
	set vertex
int	status () const
	status word
double	theta () const
	momentum polar angle
int	threeCharge () const
	electric charge
const Point &	vertex () const
	vertex position
double	vx () const
	x coordinate of vertex position
double	vy () const
	y coordinate of vertex position
double	vz () const
	z coordinate of vertex position
double	y () const
	repidity
virtual	~Particle ()
	destructor
Static Public Attributes
static const unsigned int	longLivedTag = 65536
	long lived flag
Protected Member Functions
void	cacheCartesian () const
	set internal cache
void	cachePolar () const
	set internal cache
void	clearCache () const
	clear internal cache
Protected Attributes
bool	cacheCartesianFixed_
bool	cachePolarFixed_
	has cache been set?
float	eta_
float	mass_
LorentzVector	p4Cartesian_
	internal cache for p4
PolarLorentzVector	p4Polar_
	internal cache for p4
int	pdgId_
	PDG identifier.
float	phi_
float	pt_
	four-momentum Lorentz vector
Charge	qx3_
	electric charge
int	status_
	status word
Point	vertex_
	vertex position

Detailed Description

Base class describing a generic reconstructed particle its main subclass is Candidate

Author:: Luca Lista, INFN

Version:

Id:: Particle.h,v 1.29 2011/10/27 16:29:58 wmtan Exp

Definition at line 20 of file Particle.h.

Member Typedef Documentation

typedef int reco::Particle::Charge

electric charge type

Definition at line 23 of file Particle.h.

typedef math::XYZTLorentzVector reco::Particle::LorentzVector

Lorentz vector.

Definition at line 25 of file Particle.h.

typedef math::XYZPoint reco::Particle::Point

point in the space

Definition at line 29 of file Particle.h.

typedef math::PtEtaPhiMLorentzVector reco::Particle::PolarLorentzVector

Lorentz vector.

Definition at line 27 of file Particle.h.

typedef math::XYZVector reco::Particle::Vector

point in the space

Definition at line 31 of file Particle.h.

Constructor & Destructor Documentation

reco::Particle::Particle ( ) [inline]

default constructor

Definition at line 33 of file Particle.h.

               :
      qx3_(0), pt_(0), eta_(0), phi_(0), mass_(0), 
      vertex_(0, 0, 0), pdgId_(0), status_(0),
      cachePolarFixed_( false ) { }

reco::Particle::Particle	(	Charge	q,
		const LorentzVector &	p4,
		const Point &	vertex = `Point( 0, 0, 0 )`,
		int	pdgId = `0`,
		int	status = `0`,
		bool	integerCharge = `true`
	)		`[inline]`

constructor from values

Definition at line 38 of file Particle.h.

References qx3_.

                                                                         : 
      qx3_( q ), pt_( p4.pt() ), eta_( p4.eta() ), phi_( p4.phi() ), mass_( p4.mass() ),
      vertex_( vertex ), pdgId_( pdgId ), status_( status ),
      cachePolarFixed_( false ), cacheCartesianFixed_( false ) { 
      if ( integerCharge ) qx3_ *= 3;
    }

reco::Particle::Particle	(	Charge	q,
		const PolarLorentzVector &	p4,
		const Point &	vertex = `Point( 0, 0, 0 )`,
		int	pdgId = `0`,
		int	status = `0`,
		bool	integerCharge = `true`
	)		`[inline]`

constructor from values

Definition at line 46 of file Particle.h.

References qx3_.

                                                                         : 
      qx3_( q ), pt_( p4.pt() ), eta_( p4.eta() ), phi_( p4.phi() ), mass_( p4.mass() ),
      vertex_( vertex ), pdgId_( pdgId ), status_( status ),
      cachePolarFixed_( false ), cacheCartesianFixed_( false ) { 
      if ( integerCharge ) qx3_ *= 3;
    }

virtual reco::Particle::~Particle ( ) [inline, virtual]

destructor

Definition at line 54 of file Particle.h.

{ }

Member Function Documentation

Vector reco::Particle::boostToCM ( ) const [inline]

boost vector to boost a Lorentz vector to the particle center of mass system

Definition at line 71 of file Particle.h.

References cacheCartesian(), and p4Cartesian_.

{ cacheCartesian(); return p4Cartesian_.BoostToCM(); }

void reco::Particle::cacheCartesian ( ) const [inline, protected]

set internal cache

Definition at line 188 of file Particle.h.

References cacheCartesianFixed_, cachePolar(), p4Cartesian_, and p4Polar_.

Referenced by boostToCM(), energy(), momentum(), p(), p4(), px(), py(), pz(), setPz(), and theta().

                                       { 
      if ( cacheCartesianFixed_ ) return;
      cachePolar();
      p4Cartesian_ = p4Polar_;
      cacheCartesianFixed_ = true;
    }

void reco::Particle::cachePolar ( ) const [inline, protected]

set internal cache

Definition at line 182 of file Particle.h.

References cachePolarFixed_, eta_, mass_, p4Polar_, phi_, and pt_.

Referenced by cacheCartesian(), et(), mt(), mtSqr(), polarP4(), and rapidity().

                                   { 
      if ( cachePolarFixed_ ) return;
      p4Polar_ = PolarLorentzVector( pt_, eta_, phi_, mass_ );
      cachePolarFixed_ = true;
    }

int reco::Particle::charge ( ) const [inline]

electric charge

Definition at line 56 of file Particle.h.

References qx3_.

{ return qx3_ / 3; }

void reco::Particle::clearCache ( ) const [inline, protected]

clear internal cache

Definition at line 195 of file Particle.h.

References cacheCartesianFixed_, and cachePolarFixed_.

Referenced by setMass().

                                   { 
      cachePolarFixed_ = false;
      cacheCartesianFixed_ = false;
    }

double reco::Particle::energy ( ) const [inline]

energy

Definition at line 75 of file Particle.h.

References cacheCartesian(), and p4Cartesian_.

Referenced by EmDQMReco::analyze().

{ cacheCartesian(); return p4Cartesian_.E(); }

double reco::Particle::et ( ) const [inline]

transverse energy

Definition at line 77 of file Particle.h.

References cachePolar(), and p4Polar_.

{ cachePolar(); return p4Polar_.Et(); }

double reco::Particle::eta ( ) const [inline]

momentum pseudorapidity

Definition at line 99 of file Particle.h.

References eta_.

Referenced by TopHLTDiMuonDQM::analyze(), and PFRootEventManager::fillOutEventWithClusters().

{ return eta_; }

bool reco::Particle::longLived ( ) const [inline]

is long lived?

Definition at line 162 of file Particle.h.

References longLivedTag, and status_.

{ return status_ & longLivedTag; }

double reco::Particle::mass ( ) const [inline]

mass

Definition at line 79 of file Particle.h.

References mass_.

{ return mass_; }

double reco::Particle::massSqr ( ) const [inline]

mass squared

Definition at line 81 of file Particle.h.

References mass_.

{ return mass_ * mass_; }

Vector reco::Particle::momentum ( ) const [inline]

spatial momentum vector

Definition at line 68 of file Particle.h.

References cacheCartesian(), and p4Cartesian_.

{ cacheCartesian(); return p4Cartesian_.Vect(); }

double reco::Particle::mt ( ) const [inline]

transverse mass

Definition at line 83 of file Particle.h.

References cachePolar(), and p4Polar_.

{ cachePolar(); return p4Polar_.Mt(); }

double reco::Particle::mtSqr ( ) const [inline]

transverse mass squared

Definition at line 85 of file Particle.h.

References cachePolar(), and p4Polar_.

{ cachePolar(); return p4Polar_.Mt2(); }

double reco::Particle::p ( ) const [inline]

magnitude of momentum vector

Definition at line 73 of file Particle.h.

References cacheCartesian(), and p4Cartesian_.

{ cacheCartesian(); return p4Cartesian_.P(); }

const LorentzVector& reco::Particle::p4 ( ) const [inline]

four-momentum Lorentz vector

Definition at line 64 of file Particle.h.

References cacheCartesian(), and p4Cartesian_.

Referenced by TtDilepLRSignalSelObservables::operator()(), TtSemiLRJetCombObservables::operator()(), CandidateTriggerObjectProducer::produce(), setP4(), ParticleReplacerClass::transformMuMu2TauNu(), and ParticleReplacerClass::transformMuMu2TauTau().

{ cacheCartesian(); return p4Cartesian_; }

int reco::Particle::pdgId ( ) const [inline]

PDG identifier.

Definition at line 150 of file Particle.h.

References pdgId_.

Referenced by TopHLTDiMuonDQM::analyze(), setPdgId(), ParticleReplacerClass::transformMuMu2TauNu(), and ParticleReplacerClass::transformMuMu2TauTau().

{ return pdgId_; }

double reco::Particle::phi ( ) const [inline]

momentum azimuthal angle

Definition at line 95 of file Particle.h.

References phi_.

Referenced by TopHLTDiMuonDQM::analyze(), and PFRootEventManager::fillOutEventWithClusters().

{ return phi_; }

const PolarLorentzVector& reco::Particle::polarP4 ( ) const [inline]

four-momentum Lorentz vector

Definition at line 66 of file Particle.h.

References cachePolar(), and p4Polar_.

{ cachePolar(); return p4Polar_; }

double reco::Particle::pt ( ) const [inline]

transverse momentum

Definition at line 93 of file Particle.h.

References pt_.

Referenced by IsMuMatchedToHLTSingleMu().

{ return pt_; }

double reco::Particle::px ( ) const [inline]

x coordinate of momentum vector

Definition at line 87 of file Particle.h.

References cacheCartesian(), and p4Cartesian_.

{ cacheCartesian(); return p4Cartesian_.Px(); }

double reco::Particle::py ( ) const [inline]

y coordinate of momentum vector

Definition at line 89 of file Particle.h.

References cacheCartesian(), and p4Cartesian_.

{ cacheCartesian(); return p4Cartesian_.Py(); }

double reco::Particle::pz ( ) const [inline]

z coordinate of momentum vector

Definition at line 91 of file Particle.h.

References cacheCartesian(), and p4Cartesian_.

{ cacheCartesian(); return p4Cartesian_.Pz(); }

double reco::Particle::rapidity ( ) const [inline]

repidity

Definition at line 101 of file Particle.h.

References cachePolar(), and p4Polar_.

Referenced by y().

{ cachePolar(); return p4Polar_.Rapidity(); }

void reco::Particle::setCharge ( Charge q ) [inline]

set electric charge

Definition at line 58 of file Particle.h.

References qx3_.

{ qx3_ = q * 3; }

void reco::Particle::setLongLived ( ) [inline]

set long lived flag

Definition at line 160 of file Particle.h.

References longLivedTag, and status_.

{ status_ |= longLivedTag; }

void reco::Particle::setMass ( double m ) [inline]

set particle mass

Definition at line 126 of file Particle.h.

References clearCache(), m, and mass_.

                             { 
      mass_ = m; 
      clearCache(); 
    }

void reco::Particle::setP4 ( const PolarLorentzVector & p4 ) [inline]

set 4-momentum

Definition at line 116 of file Particle.h.

References cacheCartesianFixed_, cachePolarFixed_, eta_, mass_, p4(), p4Polar_, phi_, and pt_.

                                                { 
      p4Polar_ = p4;
      pt_ = p4Polar_.pt();
      eta_ = p4Polar_.eta();
      phi_ = p4Polar_.phi();
      mass_ = p4Polar_.mass();
      cachePolarFixed_ = true;
      cacheCartesianFixed_ = false;            
    }

void reco::Particle::setP4 ( const LorentzVector & p4 ) [inline]

set 4-momentum

Definition at line 105 of file Particle.h.

References cacheCartesianFixed_, cachePolarFixed_, eta_, mass_, p4(), p4Cartesian_, p4Polar_, phi_, and pt_.

Referenced by ParticleReplacerClass::transformMuMu2TauNu(), and ParticleReplacerClass::transformMuMu2TauTau().

                                           { 
      p4Cartesian_ = p4;
      p4Polar_ = p4;
      pt_ = p4Polar_.pt();
      eta_ = p4Polar_.eta();
      phi_ = p4Polar_.phi();
      mass_ = p4Polar_.mass();
      cachePolarFixed_ = true;
      cacheCartesianFixed_ = true;      
    }

void reco::Particle::setPdgId ( int pdgId ) [inline]

Definition at line 152 of file Particle.h.

References pdgId(), and pdgId_.

Referenced by TtDilepEvtSolution::getLeptNeg(), TtDilepEvtSolution::getLeptPos(), ParticleReplacerClass::transformMuMu2TauNu(), and ParticleReplacerClass::transformMuMu2TauTau().

{ pdgId_ = pdgId; }

void reco::Particle::setPz ( double pz ) [inline]

Definition at line 130 of file Particle.h.

References cacheCartesian(), eta_, mass_, p4Cartesian_, p4Polar_, phi_, and pt_.

                            {
      cacheCartesian();
      p4Cartesian_.SetPz(pz);
      p4Polar_ = p4Cartesian_;
      pt_ = p4Polar_.pt();
      eta_ = p4Polar_.eta();
      phi_ = p4Polar_.phi();
      mass_ = p4Polar_.mass();
    }

void reco::Particle::setStatus ( int status ) [inline]

set status word

Definition at line 156 of file Particle.h.

References status(), and status_.

Referenced by ParticleReplacerClass::produce(), ParticleReplacerClass::transformMuMu2TauNu(), and ParticleReplacerClass::transformMuMu2TauTau().

{ status_ = status; }

void reco::Particle::setThreeCharge ( Charge qx3 ) [inline]

set electric charge

Definition at line 62 of file Particle.h.

References qx3_.

{ qx3_ = qx3; }

void reco::Particle::setVertex ( const Point & vertex ) [inline]

set vertex

Definition at line 148 of file Particle.h.

References vertex(), and vertex_.

{ vertex_ = vertex; }

int reco::Particle::status ( ) const [inline]

status word

Definition at line 154 of file Particle.h.

References status_.

Referenced by setStatus().

{ return status_; }

double reco::Particle::theta ( ) const [inline]

momentum polar angle

Definition at line 97 of file Particle.h.

References cacheCartesian(), and p4Cartesian_.

{ cacheCartesian(); return p4Cartesian_.Theta(); }

int reco::Particle::threeCharge ( ) const [inline]

electric charge

Definition at line 60 of file Particle.h.

References qx3_.

{ return qx3_; }

const Point& reco::Particle::vertex ( ) const [inline]

vertex position

Definition at line 140 of file Particle.h.

References vertex_.

Referenced by setVertex().

{ return vertex_; }

double reco::Particle::vx ( ) const [inline]

x coordinate of vertex position

Definition at line 142 of file Particle.h.

References vertex_.

{ return vertex_.X(); }

double reco::Particle::vy ( ) const [inline]

y coordinate of vertex position

Definition at line 144 of file Particle.h.

References vertex_.

{ return vertex_.Y(); }

double reco::Particle::vz ( ) const [inline]

z coordinate of vertex position

Definition at line 146 of file Particle.h.

References vertex_.

{ return vertex_.Z(); }

double reco::Particle::y ( ) const [inline]

repidity

Definition at line 103 of file Particle.h.

References rapidity().

{ return rapidity(); }

Member Data Documentation

bool reco::Particle::cacheCartesianFixed_ [mutable, protected]

Definition at line 180 of file Particle.h.

Referenced by cacheCartesian(), clearCache(), and setP4().

bool reco::Particle::cachePolarFixed_ [mutable, protected]

has cache been set?

Definition at line 180 of file Particle.h.

Referenced by cachePolar(), clearCache(), and setP4().

float reco::Particle::eta_ [protected]

Definition at line 168 of file Particle.h.

Referenced by cachePolar(), eta(), setP4(), and setPz().

const unsigned int reco::Particle::longLivedTag = 65536 [static]

long lived flag

Definition at line 158 of file Particle.h.

Referenced by longLived(), and setLongLived().

float reco::Particle::mass_ [protected]

Definition at line 168 of file Particle.h.

Referenced by cachePolar(), mass(), massSqr(), setMass(), setP4(), and setPz().

LorentzVector reco::Particle::p4Cartesian_ [mutable, protected]

internal cache for p4

Definition at line 178 of file Particle.h.

Referenced by boostToCM(), cacheCartesian(), energy(), momentum(), p(), p4(), px(), py(), pz(), setP4(), setPz(), and theta().

PolarLorentzVector reco::Particle::p4Polar_ [mutable, protected]

internal cache for p4

Definition at line 176 of file Particle.h.

Referenced by cacheCartesian(), cachePolar(), et(), mt(), mtSqr(), polarP4(), rapidity(), setP4(), and setPz().

int reco::Particle::pdgId_ [protected]

PDG identifier.

Definition at line 172 of file Particle.h.

Referenced by pdgId(), and setPdgId().

float reco::Particle::phi_ [protected]

Definition at line 168 of file Particle.h.

Referenced by cachePolar(), phi(), setP4(), and setPz().

float reco::Particle::pt_ [protected]

four-momentum Lorentz vector

Definition at line 168 of file Particle.h.

Referenced by cachePolar(), pt(), setP4(), and setPz().

Charge reco::Particle::qx3_ [protected]

electric charge

Definition at line 166 of file Particle.h.

Referenced by charge(), Particle(), setCharge(), setThreeCharge(), and threeCharge().

int reco::Particle::status_ [protected]

status word

Definition at line 174 of file Particle.h.

Referenced by longLived(), setLongLived(), setStatus(), and status().

Point reco::Particle::vertex_ [protected]

vertex position

Definition at line 170 of file Particle.h.

Referenced by setVertex(), vertex(), vx(), vy(), and vz().

reco::Particle Class Reference

Public Types

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation