KinematicVertex Class Reference

#include <KinematicVertex.h>

Inheritance diagram for KinematicVertex:

Public Member Functions
float	chiSquared () const
KinematicTree *	correspondingTree () const
float	degreesOfFreedom () const
GlobalError	error () const
	KinematicVertex ()
	KinematicVertex (const CachingVertex< 6 > &vertex)
	KinematicVertex (const VertexState state, const ReferenceCountingPointer< KinematicVertex > prVertex, float totalChiSq, float degreesOfFr)
	KinematicVertex (const VertexState state, float totalChiSq, float degreesOfFr)
	operator reco::Vertex ()
bool	operator< (const KinematicVertex &other) const
bool	operator== (const KinematicVertex &other) const
bool	operator== (const ReferenceCountingPointer< KinematicVertex > other) const
GlobalPoint	position () const
ReferenceCountingPointer< KinematicVertex >	vertexBeforeConstraint () const
bool	vertexIsValid () const
VertexState	vertexState () const
	~KinematicVertex () override

Private Member Functions
void	setTreePointer (KinematicTree *tr) const

Private Attributes
ReferenceCountingPointer< KinematicVertex >	pVertex
float	theChiSquared
float	theNDF
VertexState	theState
KinematicTree *	tree
bool	vl

Friends
class	KinematicTree

Detailed Description

Class representing a Decay Vertex Caches a vertex position, covariance matrix, chi squared and number of degrees of freedom. Class is usually created by KinematicParticleVertexFitter

Kirill Prokofiev, December 2002

Definition at line 20 of file KinematicVertex.h.

Constructor & Destructor Documentation

KinematicVertex() [1/4]

KinematicVertex::KinematicVertex

(

)

Empty default constructor for invalid vertices

Definition at line 8 of file KinematicVertex.cc.

{ vl = false; }

References vl.

KinematicVertex() [2/4]

KinematicVertex::KinematicVertex	(	const VertexState	state,
		float	totalChiSq,
		float	degreesOfFr
	)

Constructor with vertex state, chi2 and ndf. Previous state of the vertex pointer is set to 0.

Definition at line 10 of file KinematicVertex.cc.

    : theState(state),
      theChiSquared(totalChiSq),
      theNDF(degreesOfFr)
 
{
  vl = true;
  tree = nullptr;
  pVertex = nullptr;
}

References pVertex, and vl.

KinematicVertex() [3/4]

KinematicVertex::KinematicVertex	(	const VertexState	state,
		const ReferenceCountingPointer< KinematicVertex >	prVertex,
		float	totalChiSq,
		float	degreesOfFr
	)

Constructor with previous (before constraint) state of the vertex

Definition at line 32 of file KinematicVertex.cc.

    : theState(state), theChiSquared(totalChiSq), theNDF(degreesOfFr), pVertex(prVertex) {
  vl = true;
  tree = nullptr;
}

References vl.

KinematicVertex() [4/4]

KinematicVertex::KinematicVertex

(

const CachingVertex< 6 > &

vertex

)

Direct transformation from caching vertex

Definition at line 21 of file KinematicVertex.cc.

                                                               {
  // theVertexPosition = vertex.position();
  // theVPositionError = vertex.error();
  vl = true;
  theState = VertexState(vertex.position(), vertex.error());
  theChiSquared = vertex.totalChiSquared();
  theNDF = vertex.degreesOfFreedom();
  tree = nullptr;
  pVertex = nullptr;
}

References pVertex, theChiSquared, theNDF, theState, bphysicsOniaDQM_cfi::vertex, and vl.

~KinematicVertex()

KinematicVertex::~KinematicVertex ( )

override

Definition at line 73 of file KinematicVertex.cc.

{}

Member Function Documentation

chiSquared()

float KinematicVertex::chiSquared

(

)

const

Definition at line 79 of file KinematicVertex.cc.

{ return theChiSquared; }

References theChiSquared.

correspondingTree()

KinematicTree * KinematicVertex::correspondingTree

(

)

const

Returns the pointer to the kinematic tree (if any) current vertex belongs to returned in case of not any tree build yet

Definition at line 83 of file KinematicVertex.cc.

{ return tree; }

References tree.

degreesOfFreedom()

float KinematicVertex::degreesOfFreedom

(

)

const

Definition at line 81 of file KinematicVertex.cc.

{ return theNDF; }

References theNDF.

error()

GlobalError KinematicVertex::error

(

)

const

Definition at line 77 of file KinematicVertex.cc.

{ return theState.error(); }

References VertexState::error(), and theState.

Referenced by Page1Parser.Page1Parser::check_for_whole_start_tag(), and operator==().

operator reco::Vertex()

KinematicVertex::operator reco::Vertex

(

)

Definition at line 91 of file KinematicVertex.cc.

                                     {
  //If the vertex is invalid, return an invalid TV !
  if (!vertexIsValid() || tree == nullptr)
    return reco::Vertex();
 
  //accessing the tree components, move pointer to top
  if (!tree->findDecayVertex(this))
    return reco::Vertex();
  std::vector<RefCountedKinematicParticle> daughters = tree->daughterParticles();
 
  reco::Vertex vertex(reco::Vertex::Point(theState.position()),
                      //    RecoVertex::convertError(theVertexState.error()),
                      theState.error().matrix(),
                      chiSquared(),
                      degreesOfFreedom(),
                      daughters.size());
 
  for (std::vector<RefCountedKinematicParticle>::const_iterator i = daughters.begin(); i != daughters.end(); ++i) {
    const TransientTrackKinematicParticle* ttkp = dynamic_cast<const TransientTrackKinematicParticle*>(&(**i));
    if (ttkp != nullptr) {
      const reco::TrackTransientTrack* ttt =
          dynamic_cast<const reco::TrackTransientTrack*>(ttkp->initialTransientTrack()->basicTransientTrack());
      if ((ttt != nullptr) && (ttt->persistentTrackRef().isNonnull())) {
        reco::TrackRef tr = ttt->persistentTrackRef();
        vertex.add(reco::TrackBaseRef(tr), ttkp->refittedTransientTrack().track(), 1.);
      } else {
        const reco::GsfTransientTrack* ttt =
            dynamic_cast<const reco::GsfTransientTrack*>(ttkp->initialTransientTrack()->basicTransientTrack());
        if ((ttt != nullptr) && (ttt->persistentTrackRef().isNonnull())) {
          reco::GsfTrackRef tr = ttt->persistentTrackRef();
          vertex.add(reco::TrackBaseRef(tr), ttkp->refittedTransientTrack().track(), 1.);
        }
      }
    }
  }
  return vertex;
}

References reco::TransientTrack::basicTransientTrack(), BPhysicsValidation_cfi::daughters, mps_fire::i, TransientTrackKinematicParticle::initialTransientTrack(), edm::Ref< C, T, F >::isNonnull(), reco::TrackTransientTrack::persistentTrackRef(), reco::GsfTransientTrack::persistentTrackRef(), KinematicParticle::refittedTransientTrack(), reco::TransientTrack::track(), bphysicsOniaDQM_cfi::vertex, and HltBtagValidation_cff::Vertex.

operator<()

bool KinematicVertex::operator<

(

const KinematicVertex &

other

)

const

comparison by adress operator Has NO physical meaning To be used inside the graph only

Definition at line 64 of file KinematicVertex.cc.

                                                                  {
  bool res = false;
  if (this < &other)
    res = true;
  return res;
}

References trackingPlots::other.

operator==() [1/2]

bool KinematicVertex::operator==

(

const KinematicVertex &

other

)

const

Comparison by contents operator is true if position AND covariance match

Definition at line 41 of file KinematicVertex.cc.

                                                                   {
  bool res = false;
  if (vertexIsValid() && other.vertexIsValid()) {
    GlobalPoint cPos = this->position();
    GlobalPoint oPos = other.position();
    AlgebraicMatrix33 const& cCov = this->error().matrix();
    AlgebraicMatrix33 const& oCov = other.error().matrix();
    if ((cPos.x() == oPos.x()) && (cPos.y() == oPos.y()) && (cPos.z() == oPos.z()) && (cCov == oCov))
      res = true;
  } else if (!(vertexIsValid()) && !(other.vertexIsValid())) {
    if (this == &other)
      res = true;
  }
  return res;
}

References error(), GlobalErrorBase< T, ErrorWeightType >::matrix(), trackingPlots::other, position(), vertexIsValid(), PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

operator==() [2/2]

bool KinematicVertex::operator==

(

const ReferenceCountingPointer< KinematicVertex >

other

)

const

Definition at line 57 of file KinematicVertex.cc.

                                                                                            {
  bool res = false;
  if (*this == *other)
    res = true;
  return res;
}

References trackingPlots::other.

position()

GlobalPoint KinematicVertex::position

(

)

const

Definition at line 75 of file KinematicVertex.cc.

{ return theState.position(); }

References VertexState::position(), and theState.

Referenced by operator==().

setTreePointer()

void KinematicVertex::setTreePointer ( KinematicTree *  tr ) const

private

Definition at line 85 of file KinematicVertex.cc.

{ tree = tr; }

vertexBeforeConstraint()

ReferenceCountingPointer< KinematicVertex > KinematicVertex::vertexBeforeConstraint

(

)

const

Previous (before constraint) state of the vertex

Definition at line 87 of file KinematicVertex.cc.

{ return pVertex; }

References pVertex.

vertexIsValid()

bool KinematicVertex::vertexIsValid

(

)

const

Access methods Checking the validity of the vertex Example: production vertex for the first decayed particle or decay vertices of final state particles can be invalid since we don't know them.

Definition at line 71 of file KinematicVertex.cc.

{ return vl; }

References vl.

Referenced by operator==().

vertexState()

VertexState KinematicVertex::vertexState

(

)

const

Definition at line 89 of file KinematicVertex.cc.

{ return theState; }

References theState.

Friends And Related Function Documentation

KinematicTree

friend class KinematicTree

friend

Definition at line 22 of file KinematicVertex.h.

Member Data Documentation

pVertex

ReferenceCountingPointer<KinematicVertex> KinematicVertex::pVertex

mutableprivate

Definition at line 118 of file KinematicVertex.h.

Referenced by KinematicVertex(), and vertexBeforeConstraint().

theChiSquared

float KinematicVertex::theChiSquared

private

Definition at line 116 of file KinematicVertex.h.

Referenced by chiSquared(), and KinematicVertex().

theNDF

float KinematicVertex::theNDF

private

Definition at line 117 of file KinematicVertex.h.

Referenced by degreesOfFreedom(), and KinematicVertex().

theState

VertexState KinematicVertex::theState

private

Definition at line 113 of file KinematicVertex.h.

Referenced by error(), KinematicVertex(), position(), and vertexState().

tree

KinematicTree* KinematicVertex::tree

mutableprivate

Definition at line 110 of file KinematicVertex.h.

Referenced by svgfig.SVG::__str__(), ZJetsTreeAnalyzer.ZJetsTreeAnalyzer::beginLoop(), correspondingTree(), MetTreeProducer.MetTreeProducer::declareVariables(), core.AutoFillTreeProducer.AutoFillTreeProducer::declareVariables(), core.AutoFillTreeProducer.AutoFillTreeProducer::fillTree(), ZJetsTreeAnalyzer.ZJetsTreeAnalyzer::process(), MetTreeProducer.MetTreeProducer::process(), and python.cmstools.EventTree::SetAlias().

vl

bool KinematicVertex::vl

mutableprivate

Definition at line 111 of file KinematicVertex.h.

Referenced by KinematicVertex(), and vertexIsValid().