StripCPEfromTrackAngle Class Reference

#include <StripCPEfromTrackAngle.h>

Inheritance diagram for StripCPEfromTrackAngle:

Public Member Functions
StripClusterParameterEstimator::LocalValues	localParameters (const SiStripCluster &, const LocalTrajectoryParameters &) const
StripClusterParameterEstimator::LocalValues	localParameters (const SiStripCluster &, const GeomDetUnit &, const LocalTrajectoryParameters &) const
	StripCPEfromTrackAngle (edm::ParameterSet &conf, const MagneticField &mag, const TrackerGeometry &geom, const SiStripLorentzAngle &lorentz, const SiStripConfObject &confObj, const SiStripLatency &latency)
Public Member Functions inherited from StripCPE
void	clearCache ()
LocalVector	driftDirection (const StripGeomDetUnit *det) const
StripClusterParameterEstimator::LocalValues	localParameters (const SiStripCluster &) const
StripClusterParameterEstimator::LocalValues	localParameters (const SiStripCluster &cl, const GeomDetUnit &) const
	StripCPE (edm::ParameterSet &conf, const MagneticField &, const TrackerGeometry &, const SiStripLorentzAngle &, const SiStripConfObject &, const SiStripLatency &)
Public Member Functions inherited from StripClusterParameterEstimator
virtual MeasurementValues	measurementParameters (const SiStripCluster &, const GeomDetUnit &) const
virtual MeasurementValues	measurementParameters (const SiStripCluster &cluster, const GeomDetUnit &gd, const LocalTrajectoryParameters &ltp) const
Public Member Functions inherited from ClusterParameterEstimator< SiStripCluster >
virtual void	clearParameters () const
virtual void	enterLocalParameters (unsigned int id, std::pair< int, int > &row_col, LocalValues pos_err_info) const
virtual void	enterLocalParameters (uint32_t id, uint16_t firstStrip, LocalValues pos_err_info) const
virtual LocalValues	localParameters (const SiStripCluster &cluster, const GeomDetUnit &gd, const TrajectoryStateOnSurface &tsos) const
virtual VLocalValues	localParametersV (const SiStripCluster &cluster, const GeomDetUnit &gd) const
virtual VLocalValues	localParametersV (const SiStripCluster &cluster, const GeomDetUnit &gd, const LocalTrajectoryParameters &ltp) const
virtual VLocalValues	localParametersV (const SiStripCluster &cluster, const GeomDetUnit &gd, const TrajectoryStateOnSurface &tsos) const
virtual	~ClusterParameterEstimator ()

Private Member Functions
float	stripErrorSquared (const unsigned, const float) const

Additional Inherited Members
Public Types inherited from StripClusterParameterEstimator
typedef std::pair < MeasurementPoint, MeasurementError >	MeasurementValues
Public Types inherited from ClusterParameterEstimator< SiStripCluster >
typedef std::pair< LocalPoint, LocalError >	LocalValues
typedef std::vector< LocalValues >	VLocalValues
Protected Member Functions inherited from StripCPE
Param const &	param (const uint32_t detid) const
Protected Attributes inherited from StripCPE
const TrackerGeometry &	geom_
const SiStripLorentzAngle &	LorentzAngleMap_
const MagneticField &	magfield_
const bool	peakMode_
std::vector< double >	shift
std::vector< double >	xtalk1
std::vector< double >	xtalk2

Detailed Description

Definition at line 6 of file StripCPEfromTrackAngle.h.

Constructor & Destructor Documentation

StripCPEfromTrackAngle::StripCPEfromTrackAngle ( edm::ParameterSet &  conf, const MagneticField &  mag, const TrackerGeometry &  geom, const SiStripLorentzAngle &  lorentz, const SiStripConfObject &  confObj, const SiStripLatency &  latency  )

inline

Definition at line 17 of file StripCPEfromTrackAngle.h.

  : StripCPE(conf, mag, geom, lorentz, confObj, latency ) {}

Member Function Documentation

StripClusterParameterEstimator::LocalValues StripCPEfromTrackAngle::localParameters	(	const SiStripCluster &	cluster,
		const LocalTrajectoryParameters &	ltp
	)		const

Definition at line 11 of file StripCPEfromTrackAngle.cc.

References abs, SiStripCluster::amplitudes(), SiStripCluster::barycenter(), StripCPE::Param::coveredStrips(), StripCPE::Param::drift, f, SiStripCluster::geographicalId(), StripTopology::localError(), StripTopology::localPosition(), StripCPE::Param::maxLength, StripCPE::Param::moduleGeom, LocalTrajectoryParameters::momentum(), MultiGaussianStateTransform::N, L1TEmulatorMonitor_cff::p, StripCPE::param(), LocalTrajectoryParameters::position(), StripCPE::shift, strip(), stripErrorSquared(), StripCPE::Param::thickness, StripCPE::Param::topology, and LocalTrajectoryParameters::vector().

Referenced by localParameters().

                                                                                            {
  StripCPE::Param const & p = param(cluster.geographicalId());
  
  LocalVector track = ltp.momentum();
  track *= 
    (track.z()<0) ?  std::abs(p.thickness/track.z()) : 
    (track.z()>0) ? -std::abs(p.thickness/track.z()) :  
                         p.maxLength/track.mag() ;

  const unsigned N = cluster.amplitudes().size();
  const float fullProjection = p.coveredStrips( track+p.drift, ltp.position());
  const float uerr2 = stripErrorSquared( N, std::abs(fullProjection) );
  const float strip = cluster.barycenter() -  0.5f*(1.f-shift[p.moduleGeom]) * fullProjection
    + 0.5f*p.coveredStrips(track, ltp.position());
  
  return std::make_pair( p.topology->localPosition(strip, ltp.vector()),
             p.topology->localError(strip, uerr2, ltp.vector()) );
}

StripClusterParameterEstimator::LocalValues StripCPEfromTrackAngle::localParameters ( const SiStripCluster &  cluster, const GeomDetUnit &  det, const LocalTrajectoryParameters &  ltp  ) const

virtual

Reimplemented from ClusterParameterEstimator< SiStripCluster >.

Definition at line 6 of file StripCPEfromTrackAngle.cc.

References localParameters().

                                                                                                                    {
  return localParameters(cluster,ltp);
}

float StripCPEfromTrackAngle::stripErrorSquared ( const unsigned  N, const float  uProj  ) const

inlineprivate

Definition at line 32 of file StripCPEfromTrackAngle.cc.

References funct::exp(), and f.

Referenced by localParameters().

{
  if( (float(N)-uProj) > 3.5f )  
    return float(N*N)/12.f;
  else {
    const float P1=-0.339f;
    const float P2=0.90f;
    const float P3=0.279f;
    const float uerr = P1*uProj*std::exp(-uProj*P2)+P3;
    return uerr*uerr;
  }
}