PESA Namespace Reference

Local tools. More...

Classes
class	T2BeamSpot
class	T2BSTrackFilterTool
class	T2SimpleVertex
class	T2SplitVertex
class	T2Track
class	T2TrackBeamSpotTool
class	T2TrackBSLLPoly
	Class that knows details of LogLikelihood approximation with a polynomial. More...
class	T2TrackClusterer
class	T2TrackManager
class	T2Vertex
class	T2VertexBeamSpot
class	T2VertexBeamSpotTool
	This class uses primary vertex reconstruction to measure and monitor the LHC beam as seen by the ATLAS detector. More...
struct	TrkSumOf
struct	TrkTrackPt
struct	TrkTrackPt2

Functions
std::ostream &	operator<< (std::ostream &os, const T2BeamSpot &beamSpot)
std::ostream &	operator<< (std::ostream &os, const T2Track &track)
double	vertexChi2Prob (const T2Vertex &vertex)
double	tiltedBeamPositionAtZPoint (double Zref, double nominalZPosition, double nominalTransversePosition, double tilt)
double	vertexSumPt (const TrackCollection &tracks)
double	vertexSumPt2 (const TrackCollection &tracks)
std::ostream &	operator<< (std::ostream &os, const T2Vertex &vertex)

Detailed Description

Local tools.

============================================================ T2VertexBeamSpot.h, (c) ATLAS Detector software Trigger/TrigAlgorithms/TrigT2BeamSpot/T2VertexBeamSpot

============================================================

Externals.

External classes

Id

T2TrackManager.h 793164 2017-01-20 03:59:26Z ssnyder

T2TrackManager.h, (c) ATLAS Detector software Trigger/TrigAlgorithms/TrigT2BeamSpot/T2VertexBeamSpot

Sorting/Splitting class for tracks to be passed to the online beam spot vertex fitter

Authors : Emanuel Strauss

Date : 10 March, 2010

---

Online beam spot measurement and monitoring using L2 recontructed primary vertices.

Authors : David W. Miller, Rainer Bartoldus,

Su Dong

trigger EDM

Function Documentation

operator<<() [1/3]

std::ostream & PESA::operator<<	(	std::ostream &	os,
		const T2BeamSpot &	beamSpot
	)

Definition at line 15 of file T2BeamSpot.cxx.

  {
    os
      << " status = "   << beamSpot.status()
      << ", x0 = "      << beamSpot.posX() 
      << ", y0 = "      << beamSpot.posY() 
      << ", z0 = "      << beamSpot.posZ() 
      << ", sigmaX = "  << beamSpot.sigmaX()
      << ", sigmaY = "  << beamSpot.sigmaY() 
      << ", sigmaZ = "  << beamSpot.sigmaZ()
      << ", tiltX = "   << beamSpot.tiltX() 
      << ", tiltY = "   << beamSpot.tiltY()
      << ", sigmaXY = " << beamSpot.sigmaXY()
      ;
    return os;
  }

operator<<() [2/3]

std::ostream & PESA::operator<<	(	std::ostream &	os,
		const T2Track &	track
	)

Definition at line 16 of file T2Track.cxx.

  {
    os
     << "Track pT        = " << track.Pt      () << '\n'
     << "Track eta       = " << track.Eta     () << '\n'
     << "Track phi       = " << track.Phi     () << '\n'
     << "Track z0        = " << track.Z0      () << " +- " << track.Z0err() << '\n'
     << "Track d0        = " << track.D0      () << " +- " << track.D0err() << '\n'
     << "Track fit ndf   = " << track.NDF     () << '\n'
     << "Track chi2/ndf  = " << track.Qual    () << '\n'
     << "Track chi2 prob = " << track.Chi2Prob() << '\n'
     << "Track Si hits   = " << track.SiHits  () << '\n'
     << "Track Pixel hits= " << track.PIXHits () << '\n'
     << "Track SCT hits  = " << track.SCTHits () << '\n'
     << "Track TRT hits  = " << track.TRTHits () << '\n'
      ;
    return os;
  }

operator<<() [3/3]

std::ostream & PESA::operator<<	(	std::ostream &	os,
		const T2Vertex &	vertex
	)

Definition at line 82 of file T2Vertex.cxx.

  {
    os
      << "Vertex x +/- dx = " << vertex.X() << " +/- " << vertex.Xerr() << '\n'
      << "Vertex y +/- dy = " << vertex.Y() << " +/- " << vertex.Yerr() << '\n'
      << "Vertex z +/- dz = " << vertex.Z() << " +/- " << vertex.Zerr() << '\n'
      << "Vertex N tracks = " << vertex.NTrks()    << '\n'
      << "Vertex fit mass = " << vertex.Mass()     << '\n'
      << "Vertex fit qual = " << vertex.Qual()     << '\n'
      << "Vertex fit prob = " << vertex.Chi2Prob() << '\n'
      ;
    return os;
  }

tiltedBeamPositionAtZPoint()

double PESA::tiltedBeamPositionAtZPoint	(	double	Zref,
		double	nominalZPosition,
		double	nominalTransversePosition,
		double	tilt
	)

Calculate the tilted beam position at Z != 0

Definition at line 41 of file T2Vertex.cxx.

  {
    return nominalTransversePosition + tan(tilt) * (Zref-nominalZPosition);
  }

vertexChi2Prob()

double PESA::vertexChi2Prob

(

const T2Vertex &

vertex

)

Definition at line 27 of file T2Vertex.cxx.

  {
    // FIXME: unify with trackChi2Prob()
    double chi2Prob = 0.;
    const int    ndf  = vertex.NDF();
    const double chi2 = vertex.Qual() * vertex.NDF();
    if ( ndf  > 0  &&  chi2 > 0. && ! std::isinf( chi2 ) )
      {
        chi2Prob = TMath::Prob(chi2,ndf);
      }
    return chi2Prob;
  }

vertexSumPt()

double PESA::vertexSumPt

(

const TrackCollection &

tracks

)

Definition at line 71 of file T2Vertex.cxx.

  {
    return accumulate( tracks.begin(), tracks.end(), 0., TrkSumOf< TrkTrackPt >() );
  }

vertexSumPt2()

double PESA::vertexSumPt2

(

const TrackCollection &

tracks

)

Definition at line 77 of file T2Vertex.cxx.

  {
    return sqrt( accumulate( tracks.begin(), tracks.end(), 0., TrkSumOf< TrkTrackPt2 >() ) );
  }