BmnRoot
Loading...
Searching...
No Matches
Public Member Functions | Static Public Member Functions | List of all members
KFParticleFinder Class Reference

#include <KFParticleFinder.h>

Public Member Functions

 KFParticleFinder ()
 
 ~KFParticleFinder ()
 
void ConstructPVT (std::vector< CbmKFTrack > &vRTracks)
 

Static Public Member Functions

static void FindParticles (std::vector< CbmKFTrack > &vRTracks, std::vector< float > &ChiToPrimVtx, std::vector< L1FieldRegion > &vField, std::vector< KFParticle > &Particles, KFParticleSIMD &PrimVtx, const std::vector< int > &vTrackPDG, const float cuts[2][3]=DefaultCuts)
 
static void ExtrapolateToPV (std::vector< KFParticle > &vParticles, KFParticleSIMD &PrimVtx)
 
static fvec GetChi2BetweenParticles (KFParticleSIMD &p1, KFParticleSIMD &p2)
 
static void Find2DaughterDecay (std::vector< CbmKFTrack > &vTracks, const std::vector< L1FieldRegion > &vField, std::vector< KFParticle > &Particles, const int DaughterNegPDG, const int DaughterPosPDG, const int MotherPDG, std::vector< short > &idNeg, std::vector< short > &idPos, KFParticleSIMD &PrimVtx, const float *cuts=0, bool isPrimary=0, std::vector< float > *vMotherTopoChi2Ndf=0, const float *secCuts=0, const float massMotherPDG=0, const float massMotherPDGSigma=0, std::vector< KFParticle > *vMotherPrim=0, std::vector< KFParticle > *vMotherSec=0)
 
static void Find2DaughterDecay (std::vector< CbmKFTrack > &vTracks, const std::vector< L1FieldRegion > &vField, std::vector< KFParticle > &Particles, const int DaughterNegPDG, const int DaughterPosPDG, const int MotherPDG, std::vector< short > &idNeg, std::vector< short > &idPos, KFParticleSIMD &PrimVtx, const float *cuts, bool isPrimary, const float PtCut, const float Chi2PrimCut=-100.f, std::vector< float > *ChiToPrimVtx=0, const float *PCut=0)
 
static void FindTrackV0Decay (const int MotherPDG, std::vector< KFParticle > &Particles, std::vector< KFParticle > &vV0, std::vector< CbmKFTrack > &vTracks, const std::vector< L1FieldRegion > &field, const int DaughterPDG, std::vector< short > &idTrack, KFParticleSIMD &PrimVtx, const float *cuts=0, bool isPrimary=0, std::vector< float > *ChiToPrimVtx=0, std::vector< KFParticle > *vHyperonPrim=0, float hyperonPrimMass=0, float hyperonPrimMassErr=0, std::vector< KFParticle > *vHyperonSec=0)
 
static void FindHyperons (int PDG, KFParticleSIMD vDaughters[2], std::vector< int > &daughterIds, std::vector< KFParticle > &vLambdaSec, std::vector< KFParticle > &vHyperon, KFParticleSIMD &PrimVtx, const float *cuts=0, int startIndex=0)
 
static void CombinePartPart (std::vector< KFParticle > &particles1, std::vector< KFParticle > &particles2, std::vector< KFParticle > &Particles, KFParticleSIMD &PrimVtx, const float *cuts=0, bool isPrimary=0, const int MotherPDG=0, bool isSameInputPart=0, std::vector< KFParticle > *vMotherPrim=0, std::vector< KFParticle > *vMotherSec=0, float *SecCuts=0, float massMotherPdg=0, float massMotherPdgSigma=0)
 
static void FindDMesLambdac (std::vector< CbmKFTrack > &vTracks, const std::vector< L1FieldRegion > &vField, std::vector< KFParticle > &Particles, const int DaughterPDG[5], const int MotherPDG[8], std::vector< short > *idTrack[5], KFParticleSIMD &PrimVtx, const float cuts[8][8], std::vector< float > ChiToPrimVtx)
 
static void CombineTrackPart (std::vector< CbmKFTrack > &vTracks, const std::vector< L1FieldRegion > &vField, std::vector< KFParticle > &Particles, KFParticle &part, const int DaughterPDG, const int MotherPDG, std::vector< short > &id, const float *cuts, const unsigned short startIndex=0, const bool IsSamePart=0)
 
static void SelectParticleCandidates (std::vector< KFParticle > &Particles, std::vector< KFParticle > &vCandidates, KFParticleSIMD &PrimVtx, const float cuts[5])
 

Detailed Description

Definition at line 16 of file KFParticleFinder.h.

Constructor & Destructor Documentation

◆ KFParticleFinder()

KFParticleFinder::KFParticleFinder ( )

Definition at line 15 of file KFParticleFinder.cxx.

◆ ~KFParticleFinder()

KFParticleFinder::~KFParticleFinder ( )

Member Function Documentation

◆ CombinePartPart()

void KFParticleFinder::CombinePartPart ( std::vector< KFParticle > &  particles1,
std::vector< KFParticle > &  particles2,
std::vector< KFParticle > &  Particles,
KFParticleSIMD &  PrimVtx,
const float *  cuts = 0,
bool  isPrimary = 0,
const int  MotherPDG = 0,
bool  isSameInputPart = 0,
std::vector< KFParticle > *  vMotherPrim = 0,
std::vector< KFParticle > *  vMotherSec = 0,
float *  SecCuts = 0,
float  massMotherPdg = 0,
float  massMotherPdgSigma = 0 
)
static

Definition at line 1024 of file KFParticleFinder.cxx.

References KFParticleSIMD::Construct(), KFParticleSIMD::CovarianceMatrix(), KFParticleBase::DaughterIds(), fabs(), fvecLen, KFParticleSIMD::GetChi2(), KFParticleBaseSIMD::GetDistanceToVertexLine(), KFParticleSIMD::GetKFParticle(), KFParticle::GetMass(), KFParticleSIMD::GetNDF(), KFParticleBase::SetId(), KFParticleBase::SetNonlinearMassConstraint(), KFParticleBaseSIMD::SetPDG(), KFParticleSIMD::SetProductionVertex(), KFParticleBaseSIMD::SetVtxErrGuess(), KFParticleSIMD::SetVtxGuess(), sqrt(), KFParticleSIMD::X(), KFParticleSIMD::Y(), and KFParticleSIMD::Z().

Referenced by FindParticles().

◆ CombineTrackPart()

void KFParticleFinder::CombineTrackPart ( std::vector< CbmKFTrack > &  vTracks,
const std::vector< L1FieldRegion > &  vField,
std::vector< KFParticle > &  Particles,
KFParticle &  part,
const int  DaughterPDG,
const int  MotherPDG,
std::vector< short > &  id,
const float *  cuts,
const unsigned short  startIndex = 0,
const bool  IsSamePart = 0 
)
static

Definition at line 948 of file KFParticleFinder.cxx.

References KFParticle::AddDaughter(), KFParticle::CleanDaughtersId(), KFParticleSIMD::Construct(), KFParticle::CovarianceMatrix(), KFParticleSIMD::Create(), KFParticleBase::DaughterIds(), fvecLen, KFParticleSIMD::GetChi2(), KFParticleSIMD::GetKFParticle(), KFParticleSIMD::GetNDF(), KFParticle::GetX(), KFParticle::GetY(), KFParticle::GetZ(), KFParticleSIMD::SetField(), KFParticleBaseSIMD::SetId(), L1FieldRegion::SetOneEntry(), KFParticleBaseSIMD::SetPDG(), KFParticleBaseSIMD::SetVtxErrGuess(), KFParticleSIMD::SetVtxGuess(), and sqrt().

Referenced by FindDMesLambdac(), and FindParticles().

◆ ConstructPVT()

void KFParticleFinder::ConstructPVT ( std::vector< CbmKFTrack > &  vRTracks)

Definition at line 1175 of file KFParticleFinder.cxx.

◆ ExtrapolateToPV()

void KFParticleFinder::ExtrapolateToPV ( std::vector< KFParticle > &  vParticles,
KFParticleSIMD &  PrimVtx 
)
static

Definition at line 416 of file KFParticleFinder.cxx.

References fvecLen, KFParticleSIMD::GetKFParticle(), KFParticleSIMD::Parameters(), and KFParticleSIMD::TransportToPoint().

Referenced by FindParticles().

◆ Find2DaughterDecay() [1/2]

static void KFParticleFinder::Find2DaughterDecay ( std::vector< CbmKFTrack > &  vTracks,
const std::vector< L1FieldRegion > &  vField,
std::vector< KFParticle > &  Particles,
const int  DaughterNegPDG,
const int  DaughterPosPDG,
const int  MotherPDG,
std::vector< short > &  idNeg,
std::vector< short > &  idPos,
KFParticleSIMD &  PrimVtx,
const float *  cuts,
bool  isPrimary,
const float  PtCut,
const float  Chi2PrimCut = -100.f,
std::vector< float > *  ChiToPrimVtx = 0,
const float *  PCut = 0 
)
static

◆ Find2DaughterDecay() [2/2]

static void KFParticleFinder::Find2DaughterDecay ( std::vector< CbmKFTrack > &  vTracks,
const std::vector< L1FieldRegion > &  vField,
std::vector< KFParticle > &  Particles,
const int  DaughterNegPDG,
const int  DaughterPosPDG,
const int  MotherPDG,
std::vector< short > &  idNeg,
std::vector< short > &  idPos,
KFParticleSIMD &  PrimVtx,
const float *  cuts = 0,
bool  isPrimary = 0,
std::vector< float > *  vMotherTopoChi2Ndf = 0,
const float *  secCuts = 0,
const float  massMotherPDG = 0,
const float  massMotherPDGSigma = 0,
std::vector< KFParticle > *  vMotherPrim = 0,
std::vector< KFParticle > *  vMotherSec = 0 
)
static

Referenced by FindDMesLambdac(), and FindParticles().

◆ FindDMesLambdac()

void KFParticleFinder::FindDMesLambdac ( std::vector< CbmKFTrack > &  vTracks,
const std::vector< L1FieldRegion > &  vField,
std::vector< KFParticle > &  Particles,
const int  DaughterPDG[5],
const int  MotherPDG[8],
std::vector< short > *  idTrack[5],
KFParticleSIMD &  PrimVtx,
const float  cuts[8][8],
std::vector< float >  ChiToPrimVtx 
)
static

Definition at line 876 of file KFParticleFinder.cxx.

References CombineTrackPart(), fabs(), Find2DaughterDecay(), CbmKFTrack::GetTrack(), SelectParticleCandidates(), and sqrt().

Referenced by FindParticles().

◆ FindHyperons()

void KFParticleFinder::FindHyperons ( int  PDG,
KFParticleSIMD  vDaughters[2],
std::vector< int > &  daughterIds,
std::vector< KFParticle > &  vLambdaSec,
std::vector< KFParticle > &  vHyperon,
KFParticleSIMD &  PrimVtx,
const float *  cuts = 0,
int  startIndex = 0 
)
static

Definition at line 814 of file KFParticleFinder.cxx.

References KFParticleSIMD::Construct(), KFParticleBase::DaughterIds(), fvecLen, KFParticleSIMD::GetChi2(), KFParticleBaseSIMD::GetDistanceToVertexLine(), KFParticleSIMD::GetKFParticle(), KFParticleSIMD::GetNDF(), KFParticleBaseSIMD::SetPDG(), and KFParticleSIMD::SetProductionVertex().

Referenced by FindParticles().

◆ FindParticles()

void KFParticleFinder::FindParticles ( std::vector< CbmKFTrack > &  vRTracks,
std::vector< float > &  ChiToPrimVtx,
std::vector< L1FieldRegion > &  vField,
std::vector< KFParticle > &  Particles,
KFParticleSIMD &  PrimVtx,
const std::vector< int > &  vTrackPDG,
const float  cuts[2][3] = DefaultCuts 
)
static

Find particles with 2-body decay channel from input tracks vRTracks with primary vertex PrimVtx:

  1. K0s->pi+ pi-
  2. Lambda->p pi- All particles are put into the Particles array. 3 cuts for each particle are required. First index in the cuts array sets a particle number (see table above), second index - a cut number: cut[0][0] - chi to a primary vertex of a track (sqare root from a normalized on a total error of the track and the vertex distance between the track and the primary vertex), only element cut[0][0] is used to select tracks, all other elements cut[*][0] are not used; cut[*][1] - chi2/ndf of the reconstructed particle; cut[*][2] - z coordinate of the reconstructed particle. cut[*][3] - chi2/ndf of the reconstructed particle fitted to the PV;

Definition at line 19 of file KFParticleFinder.cxx.

References KFParticleBase::AddDaughterId(), CombinePartPart(), CombineTrackPart(), ExtrapolateToPV(), Find2DaughterDecay(), FindDMesLambdac(), FindHyperons(), FindTrackV0Decay(), CbmKFTrack::GetCovMatrix(), CbmKFTrack::GetRefChi2(), CbmKFTrack::GetRefNDF(), CbmKFTrack::GetTrack(), CbmKFTrackInterface::SetId(), KFParticleBase::SetId(), KFParticle::SetNDaughters(), and KFParticleBase::SetPDG().

Referenced by CbmKFParticlesFinder::Exec().

◆ FindTrackV0Decay()

void KFParticleFinder::FindTrackV0Decay ( const int  MotherPDG,
std::vector< KFParticle > &  Particles,
std::vector< KFParticle > &  vV0,
std::vector< CbmKFTrack > &  vTracks,
const std::vector< L1FieldRegion > &  field,
const int  DaughterPDG,
std::vector< short > &  idTrack,
KFParticleSIMD &  PrimVtx,
const float *  cuts = 0,
bool  isPrimary = 0,
std::vector< float > *  ChiToPrimVtx = 0,
std::vector< KFParticle > *  vHyperonPrim = 0,
float  hyperonPrimMass = 0,
float  hyperonPrimMassErr = 0,
std::vector< KFParticle > *  vHyperonSec = 0 
)
static

Definition at line 689 of file KFParticleFinder.cxx.

References KFParticleSIMD::Construct(), KFParticleSIMD::CovarianceMatrix(), KFParticleSIMD::Create(), fabs(), fvecLen, KFParticleSIMD::GetChi2(), KFParticleBaseSIMD::GetDistanceToVertexLine(), KFParticleSIMD::GetKFParticle(), KFParticle::GetMass(), KFParticleSIMD::GetNDF(), KFParticleSIMD::SetField(), KFParticleBaseSIMD::SetId(), KFParticleBase::SetId(), KFParticleBase::SetNonlinearMassConstraint(), L1FieldRegion::SetOneEntry(), KFParticleBaseSIMD::SetPDG(), KFParticleSIMD::SetProductionVertex(), KFParticleBaseSIMD::SetVtxErrGuess(), KFParticleSIMD::SetVtxGuess(), sqrt(), KFParticleSIMD::X(), KFParticleSIMD::Y(), and KFParticleSIMD::Z().

Referenced by FindParticles().

◆ GetChi2BetweenParticles()

fvec KFParticleFinder::GetChi2BetweenParticles ( KFParticleSIMD &  p1,
KFParticleSIMD &  p2 
)
static

Definition at line 439 of file KFParticleFinder.cxx.

References KFParticleSIMD::GetCovariance(), KFParticleSIMD::GetX(), KFParticleSIMD::GetY(), and KFParticleSIMD::GetZ().

◆ SelectParticleCandidates()

void KFParticleFinder::SelectParticleCandidates ( std::vector< KFParticle > &  Particles,
std::vector< KFParticle > &  vCandidates,
KFParticleSIMD &  PrimVtx,
const float  cuts[5] 
)
static

Definition at line 1136 of file KFParticleFinder.cxx.

References fvecLen, KFParticleSIMD::GetChi2(), KFParticleBaseSIMD::GetDistanceToVertexLine(), KFParticleSIMD::GetNDF(), and KFParticleSIMD::SetProductionVertex().

Referenced by FindDMesLambdac().

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