ElectronSeedGenerator Class Reference

#include <ElectronSeedGenerator.h>

Public Types
typedef TransientTrackingRecHit::ConstRecHitPointer	ConstRecHitPointer
typedef edm::OwnVector < TrackingRecHit >	PRecHitContainer
typedef TransientTrackingRecHit::RecHitContainer	RecHitContainer
typedef TransientTrackingRecHit::RecHitPointer	RecHitPointer

Public Member Functions
	ElectronSeedGenerator (const edm::ParameterSet &)
void	run (edm::Event &, const edm::EventSetup &setup, const reco::SuperClusterRefVector &, const std::vector< float > &hoe1s, const std::vector< float > &hoe2s, TrajectorySeedCollection *seeds, reco::ElectronSeedCollection &)
void	setupES (const edm::EventSetup &setup)
	~ElectronSeedGenerator ()

Private Member Functions
void	addSeed (reco::ElectronSeed &seed, const SeedWithInfo *info, bool positron, reco::ElectronSeedCollection &out)
bool	prepareElTrackSeed (ConstRecHitPointer outerhit, ConstRecHitPointer innerhit, const GlobalPoint &vertexPos)
void	seedsFromRecHits (std::vector< std::pair< RecHitWithDist, ConstRecHitPointer > > &elePixelHits, PropagationDirection &dir, const GlobalPoint &vertexPos, const reco::ElectronSeed::CaloClusterRef &cluster, reco::ElectronSeedCollection &out, bool positron)
void	seedsFromThisCluster (edm::Ref< reco::SuperClusterCollection > seedCluster, float hoe1, float hoe2, reco::ElectronSeedCollection &out)
void	seedsFromTrajectorySeeds (const std::vector< SeedWithInfo > &elePixelSeeds, const reco::ElectronSeed::CaloClusterRef &cluster, float hoe1, float hoe2, reco::ElectronSeedCollection &out, bool positron)

Private Attributes
edm::InputTag	beamSpotTag_
unsigned long long	cacheIDCkfComp_
unsigned long long	cacheIDMagField_
unsigned long long	cacheIDNavSchool_
unsigned long long	cacheIDTrkGeom_
double	deltaPhi1Coef1_
double	deltaPhi1Coef2_
float	deltaPhi1High_
float	deltaPhi1Low_
float	deltaPhi2B_
float	deltaPhi2F_
float	deltaZ1WithVertex_
bool	dynamicphiroad_
bool	fromTrackerSeeds_
float	highPtThreshold_
float	lowPtThreshold_
PixelHitMatcher *	myMatchEle
PixelHitMatcher *	myMatchPos
float	nSigmasDeltaZ1_
float	phiMax2B_
float	phiMax2F_
float	phiMin2B_
float	phiMin2F_
PTrajectoryStateOnDet	pts_
PRecHitContainer	recHits_
float	sizeWindowENeg_
edm::Handle< reco::BeamSpot >	theBeamSpot
TrajectorySeedCollection *	theInitialSeedColl
edm::ESHandle< MagneticField >	theMagField
const MeasurementTracker *	theMeasurementTracker
std::string	theMeasurementTrackerName
const NavigationSchool *	theNavigationSchool
PropagatorWithMaterial *	thePropagator
const edm::EventSetup *	theSetup
edm::ESHandle< TrackerGeometry >	theTrackerGeometry
KFUpdator *	theUpdator
edm::Handle< std::vector < reco::Vertex > >	theVertices
bool	useRecoVertex_
edm::InputTag	verticesTag_

Detailed Description

Class to generate the trajectory seed from two hits in the pixel detector which have been found compatible with an ECAL cluster.

Author

U.Berthon, C.Charlot, LLR Palaiseau

Version

1st Version May 30, 2006

Description: Top algorithm producing ElectronSeeds, ported from ORCA

Implementation: future redesign...

Definition at line 48 of file ElectronSeedGenerator.h.

Member Typedef Documentation

typedef TransientTrackingRecHit::ConstRecHitPointer ElectronSeedGenerator::ConstRecHitPointer

Definition at line 53 of file ElectronSeedGenerator.h.

typedef edm::OwnVector<TrackingRecHit> ElectronSeedGenerator::PRecHitContainer

Definition at line 52 of file ElectronSeedGenerator.h.

typedef TransientTrackingRecHit::RecHitContainer ElectronSeedGenerator::RecHitContainer

Definition at line 55 of file ElectronSeedGenerator.h.

typedef TransientTrackingRecHit::RecHitPointer ElectronSeedGenerator::RecHitPointer

Definition at line 54 of file ElectronSeedGenerator.h.

Constructor & Destructor Documentation

ElectronSeedGenerator::ElectronSeedGenerator

(

const edm::ParameterSet &

pset

)

Definition at line 46 of file ElectronSeedGenerator.cc.

References beamSpotTag_, deltaPhi1Coef1_, deltaPhi1Coef2_, deltaPhi1High_, deltaPhi1Low_, deltaPhi2B_, deltaPhi2F_, deltaZ1WithVertex_, dynamicphiroad_, edm::ParameterSet::exists(), edm::ParameterSet::getParameter(), highPtThreshold_, lowPtThreshold_, myMatchEle, myMatchPos, phiMax2B_, phiMax2F_, phiMin2B_, phiMin2F_, theMeasurementTrackerName, theUpdator, useRecoVertex_, and verticesTag_.

 : dynamicphiroad_(pset.getParameter<bool>("dynamicPhiRoad")),
   fromTrackerSeeds_(pset.getParameter<bool>("fromTrackerSeeds")),
   useRecoVertex_(false),
   verticesTag_("offlinePrimaryVerticesWithBS"),
   beamSpotTag_("offlineBeamSpot"),
   lowPtThreshold_(pset.getParameter<double>("LowPtThreshold")),
   highPtThreshold_(pset.getParameter<double>("HighPtThreshold")),
   nSigmasDeltaZ1_(pset.getParameter<double>("nSigmasDeltaZ1")),
   deltaZ1WithVertex_(0.5),
   sizeWindowENeg_(pset.getParameter<double>("SizeWindowENeg")),
   deltaPhi1Low_(pset.getParameter<double>("DeltaPhi1Low")),
   deltaPhi1High_(pset.getParameter<double>("DeltaPhi1High")),
   deltaPhi1Coef1_(0.), deltaPhi1Coef2_(0.),
   myMatchEle(0), myMatchPos(0),
   thePropagator(0),
   theMeasurementTracker(0),
   theSetup(0), 
   cacheIDMagField_(0),/*cacheIDGeom_(0),*/cacheIDNavSchool_(0),cacheIDCkfComp_(0),cacheIDTrkGeom_(0)
 {
  // so that deltaPhi1 = deltaPhi1Coef1_ + deltaPhi1Coef2_/clusterEnergyT
  if (dynamicphiroad_)
   {
    deltaPhi1Coef2_ = (deltaPhi1Low_-deltaPhi1High_)/(1./lowPtThreshold_-1./highPtThreshold_) ;
    deltaPhi1Coef1_ = deltaPhi1Low_ - deltaPhi1Coef2_/lowPtThreshold_ ;
   }

  // use of a theMeasurementTrackerName
  if (pset.exists("measurementTrackerName"))
   { theMeasurementTrackerName = pset.getParameter<std::string>("measurementTrackerName") ; }

  // use of reco vertex
  if (pset.exists("useRecoVertex"))
   { useRecoVertex_ = pset.getParameter<bool>("useRecoVertex") ; }
  if (pset.exists("vertices"))
   { verticesTag_ = pset.getParameter<edm::InputTag>("vertices") ; }
  if (pset.exists("deltaZ1WithVertex"))
   { deltaZ1WithVertex_ = pset.getParameter<double>("deltaZ1WithVertex") ; }

  // new beamSpot tag
  if (pset.exists("beamSpot"))
   { beamSpotTag_ = pset.getParameter<edm::InputTag>("beamSpot") ; }

  // new B/F configurables
  if (pset.exists("DeltaPhi2"))
   { deltaPhi2B_ = deltaPhi2F_ = pset.getParameter<double>("DeltaPhi2") ; }
  else
   {
    deltaPhi2B_ = pset.getParameter<double>("DeltaPhi2B") ;
    deltaPhi2F_ = pset.getParameter<double>("DeltaPhi2F") ;
   }
  if (pset.exists("PhiMin2"))
   { phiMin2B_ = phiMin2F_ = pset.getParameter<double>("PhiMin2") ; }
  else
   {
    phiMin2B_ = pset.getParameter<double>("PhiMin2B") ;
    phiMin2F_ = pset.getParameter<double>("PhiMin2F") ;
   }
  if (pset.exists("PhiMax2"))
   { phiMax2B_ = phiMax2F_ = pset.getParameter<double>("PhiMax2") ; }
  else
   {
    phiMax2B_ = pset.getParameter<double>("PhiMax2B") ;
    phiMax2F_ = pset.getParameter<double>("PhiMax2F") ;
   }

  // Instantiate the pixel hit matchers
  myMatchEle = new PixelHitMatcher
   ( pset.getParameter<double>("ePhiMin1"),
         pset.getParameter<double>("ePhiMax1"),
         phiMin2B_, phiMax2B_, phiMin2F_, phiMax2F_,
     pset.getParameter<double>("z2MinB"),
     pset.getParameter<double>("z2MaxB"),
     pset.getParameter<double>("r2MinF"),
     pset.getParameter<double>("r2MaxF"),
     pset.getParameter<double>("rMinI"),
     pset.getParameter<double>("rMaxI"),
     pset.getParameter<bool>("searchInTIDTEC") ) ;

  myMatchPos = new PixelHitMatcher
   ( pset.getParameter<double>("pPhiMin1"),
         pset.getParameter<double>("pPhiMax1"),
         phiMin2B_, phiMax2B_, phiMin2F_, phiMax2F_,
     pset.getParameter<double>("z2MinB"),
     pset.getParameter<double>("z2MaxB"),
     pset.getParameter<double>("r2MinF"),
     pset.getParameter<double>("r2MaxF"),
     pset.getParameter<double>("rMinI"),
     pset.getParameter<double>("rMaxI"),
     pset.getParameter<bool>("searchInTIDTEC") ) ;

  theUpdator = new KFUpdator() ;
 }

ElectronSeedGenerator::~ElectronSeedGenerator

(

)

Definition at line 140 of file ElectronSeedGenerator.cc.

References myMatchEle, myMatchPos, thePropagator, and theUpdator.

 {
  delete myMatchEle ;
  delete myMatchPos ;
  delete thePropagator ;
  delete theUpdator ;
 }

Member Function Documentation

void ElectronSeedGenerator::addSeed ( reco::ElectronSeed &  seed, const SeedWithInfo *  info, bool  positron, reco::ElectronSeedCollection &  out  )

private

Definition at line 468 of file ElectronSeedGenerator.cc.

References reco::ElectronSeed::caloCluster(), SeedWithInfo::dPhi1(), reco::ElectronSeed::dPhi2(), SeedWithInfo::dPhi2(), reco::ElectronSeed::dPhi2Pos(), SeedWithInfo::dRz1(), reco::ElectronSeed::dRz2(), SeedWithInfo::dRz2(), reco::ElectronSeed::dRz2Pos(), equivalent(), reco::ElectronSeed::hitsMask(), infinity, hitfit::return, reco::ElectronSeed::setNegAttributes(), and reco::ElectronSeed::setPosAttributes().

 {
  if (!info)
   { out.push_back(seed) ; return ; }

  if (positron)
   { seed.setPosAttributes(info->dRz2(),info->dPhi2(),info->dRz1(),info->dPhi1()) ; }
  else
   { seed.setNegAttributes(info->dRz2(),info->dPhi2(),info->dRz1(),info->dPhi1()) ; }
  reco::ElectronSeedCollection::iterator resItr ;
  for ( resItr=out.begin() ; resItr!=out.end() ; ++resItr )
   {
    if ( (seed.caloCluster()==resItr->caloCluster()) &&
         (seed.hitsMask()==resItr->hitsMask()) &&
         equivalent(seed,*resItr) )
     {
      if (positron)
       {
        if ( resItr->dRz2Pos()==std::numeric_limits<float>::infinity() &&
             resItr->dRz2()!=std::numeric_limits<float>::infinity() )
         {
          resItr->setPosAttributes(info->dRz2(),info->dPhi2(),info->dRz1(),info->dPhi1()) ;
          seed.setNegAttributes(resItr->dRz2(),resItr->dPhi2(),resItr->dRz1(),resItr->dPhi1()) ;
          break ;
         }
        else
         {
          if ( resItr->dRz2Pos()!=std::numeric_limits<float>::infinity() )
           {
            if ( resItr->dRz2Pos()!=seed.dRz2Pos() )
             {
              edm::LogWarning("ElectronSeedGenerator|BadValue")
               <<"this similar old seed already has another dRz2Pos"
               <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
               <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
             }
//            else
//             {
//              edm::LogWarning("ElectronSeedGenerator|UnexpectedValue")
//               <<"this old seed already knows its dRz2Pos, we suspect duplicates in input trajectry seeds"
//               <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
//               <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
//             }
            }
//          if (resItr->dRz2()==std::numeric_limits<float>::infinity())
//           {
//            edm::LogWarning("ElectronSeedGenerator|BadValue")
//             <<"this old seed has no dRz2, we suspect duplicates in input trajectry seeds"
//             <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
//             <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
//           }
         }
       }
      else
       {
        if ( resItr->dRz2()==std::numeric_limits<float>::infinity()
          && resItr->dRz2Pos()!=std::numeric_limits<float>::infinity() )
         {
          resItr->setNegAttributes(info->dRz2(),info->dPhi2(),info->dRz1(),info->dPhi1()) ;
          seed.setPosAttributes(resItr->dRz2Pos(),resItr->dPhi2Pos(),resItr->dRz1Pos(),resItr->dPhi1Pos()) ;
          break ;
         }
        else
         {
          if ( resItr->dRz2()!=std::numeric_limits<float>::infinity() )
           {
            if (resItr->dRz2()!=seed.dRz2())
             {
              edm::LogWarning("ElectronSeedGenerator|BadValue")
               <<"this old seed already has another dRz2"
               <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
               <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
             }
    //        else
    //         {
    //          edm::LogWarning("ElectronSeedGenerator|UnexpectedValue")
    //           <<"this old seed already knows its dRz2, we suspect duplicates in input trajectry seeds"
    //           <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
    //           <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
    //          seed.setPosAttributes(resItr->dRz2Pos(),resItr->dPhi2Pos(),resItr->dRz1Pos(),resItr->dPhi1Pos()) ;
    //         }
           }
//          if (resItr->dRz2Pos()==std::numeric_limits<float>::infinity())
//           {
//            edm::LogWarning("ElectronSeedGenerator|BadValue")
//             <<"this old seed has no dRz2Pos"
//             <<"\nold seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)resItr->hitsMask()<<"/"<<resItr->dRz2()<<"/"<<resItr->dPhi2()<<"/"<<resItr->dRz2Pos()<<"/"<<resItr->dPhi2Pos()
//             <<"\nnew seed mask/dRz2/dPhi2/dRz2Pos/dPhi2Pos: "<<(unsigned int)seed.hitsMask()<<"/"<<seed.dRz2()<<"/"<<seed.dPhi2()<<"/"<<seed.dRz2Pos()<<"/"<<seed.dPhi2Pos() ;
//           }
         }
       }
     }
   }

  out.push_back(seed) ;
 }

bool ElectronSeedGenerator::prepareElTrackSeed ( ConstRecHitPointer  outerhit, ConstRecHitPointer  innerhit, const GlobalPoint &  vertexPos  )

private

Definition at line 569 of file ElectronSeedGenerator.cc.

References TrajectoryStateOnSurface::globalMomentum(), TrajectoryStateOnSurface::globalPosition(), TrajectoryStateOnSurface::isValid(), LogDebug, PV3DBase< T, PVType, FrameType >::perp(), and trajectoryStateTransform::persistentState().

 {

  // debug prints
  LogDebug("") <<"[ElectronSeedGenerator::prepareElTrackSeed] inner PixelHit   x,y,z "<<innerhit->globalPosition();
  LogDebug("") <<"[ElectronSeedGenerator::prepareElTrackSeed] outer PixelHit   x,y,z "<<outerhit->globalPosition();

  recHits_.clear();

  SiPixelRecHit *pixhit=0;
  SiStripMatchedRecHit2D *striphit=0;
  const SiPixelRecHit* constpixhit = dynamic_cast <const SiPixelRecHit*> (innerhit->hit());
  if (constpixhit) {
    pixhit=new SiPixelRecHit(*constpixhit);
    recHits_.push_back(pixhit);
  } else  return false;
  constpixhit =  dynamic_cast <const SiPixelRecHit *> (outerhit->hit());
  if (constpixhit) {
    pixhit=new SiPixelRecHit(*constpixhit);
    recHits_.push_back(pixhit);
  } else {
    const SiStripMatchedRecHit2D * conststriphit=dynamic_cast <const SiStripMatchedRecHit2D *> (outerhit->hit());
    if (conststriphit) {
      striphit = new SiStripMatchedRecHit2D(*conststriphit);
      recHits_.push_back(striphit);
    } else return false;
  }

  typedef TrajectoryStateOnSurface     TSOS;

  // make a spiral
  FastHelix helix(outerhit->globalPosition(),innerhit->globalPosition(),vertexPos,*theSetup);
  if ( !helix.isValid()) {
    return false;
  }
  FreeTrajectoryState fts = helix.stateAtVertex();
  TSOS propagatedState = thePropagator->propagate(fts,innerhit->det()->surface()) ;
  if (!propagatedState.isValid())
    return false;
  TSOS updatedState = theUpdator->update(propagatedState, *innerhit);

  TSOS propagatedState_out = thePropagator->propagate(updatedState,outerhit->det()->surface()) ;
  if (!propagatedState_out.isValid())
    return false;
  TSOS updatedState_out = theUpdator->update(propagatedState_out, *outerhit);
  // debug prints
  LogDebug("") <<"[ElectronSeedGenerator::prepareElTrackSeed] final TSOS, position: "<<updatedState_out.globalPosition()<<" momentum: "<<updatedState_out.globalMomentum();
  LogDebug("") <<"[ElectronSeedGenerator::prepareElTrackSeed] final TSOS Pt: "<<updatedState_out.globalMomentum().perp();
  pts_ =  trajectoryStateTransform::persistentState(updatedState_out, outerhit->geographicalId().rawId());

  return true;
 }

void ElectronSeedGenerator::run	(	edm::Event &	e,
		const edm::EventSetup &	setup,
		const reco::SuperClusterRefVector &	sclRefs,
		const std::vector< float > &	hoe1s,
		const std::vector< float > &	hoe2s,
		TrajectorySeedCollection *	seeds,
		reco::ElectronSeedCollection &	out
	)

Definition at line 223 of file ElectronSeedGenerator.cc.

References edm::Event::getByLabel(), i, edm::EventBase::id(), LogDebug, HcalObjRepresent::setup(), and edm::RefVector< C, T, F >::size().

Referenced by ElectronSeedProducer::produce().

 {
  theInitialSeedColl = seeds ;
//  bool duplicateTrajectorySeeds =false ;
//  unsigned int i,j ;
//  for (i=0;i<seeds->size();++i)
//    for (j=i+1;j<seeds->size();++j)
//     {
//      const TrajectorySeed & s1 =(*seeds)[i] ;
//      const TrajectorySeed & s2 =(*seeds)[j] ;
//      if ( equivalent(s1,s2) )
//       {
//        const PTrajectoryStateOnDet & ss1 = s1.startingState() ;
//        const LocalTrajectoryParameters & p1 = ss1.parameters() ;
//        const PTrajectoryStateOnDet & ss2 = s2.startingState() ;
//        const LocalTrajectoryParameters & p2 = ss2.parameters() ;
//        duplicateTrajectorySeeds = true ;
//        std::cout<<"Same hits for "
//          <<"\n  s["<<i<<"] ("<<s1.direction()<<"/"<<ss1.detId()<<"/"<<ss1.surfaceSide()<<"/"<<p1.charge()<<"/"<<p1.position()<<"/"<<p1.momentum()<<")"
//          <<"\n  s["<<j<<"] ("<<s2.direction()<<"/"<<ss2.detId()<<"/"<<ss2.surfaceSide()<<"/"<<p2.charge()<<"/"<<p2.position()<<"/"<<p2.momentum()<<")"
//          <<std::endl ;
//       }
//     }
//  if (duplicateTrajectorySeeds)
//   { edm::LogWarning("ElectronSeedGenerator|DuplicateTrajectorySeeds")<<"We see several identical trajectory seeds." ; }


  theSetup= &setup;
  NavigationSetter theSetter(*theNavigationSchool);

  // get initial TrajectorySeeds if necessary
  //  if (fromTrackerSeeds_) e.getByLabel(initialSeeds_, theInitialSeedColl);

  // get the beamspot from the Event:
  //e.getByType(theBeamSpot);
  e.getByLabel(beamSpotTag_,theBeamSpot);

  // if required get the vertices
  if (useRecoVertex_) e.getByLabel(verticesTag_,theVertices);

  if (!fromTrackerSeeds_)
   { theMeasurementTracker->update(e) ; }

  for  (unsigned int i=0;i<sclRefs.size();++i) {
    // Find the seeds
    recHits_.clear();

    LogDebug ("run") << "new cluster, calling seedsFromThisCluster";
    seedsFromThisCluster(sclRefs[i],hoe1s[i],hoe2s[i],out);
  }

  LogDebug ("run") << ": For event "<<e.id();
  LogDebug ("run") <<"Nr of superclusters after filter: "<<sclRefs.size()
   <<", no. of ElectronSeeds found  = " << out.size();
}

void ElectronSeedGenerator::seedsFromRecHits ( std::vector< std::pair< RecHitWithDist, ConstRecHitPointer > > &  elePixelHits, PropagationDirection &  dir, const GlobalPoint &  vertexPos, const reco::ElectronSeed::CaloClusterRef &  cluster, reco::ElectronSeedCollection &  out, bool  positron  )

private

Definition at line 426 of file ElectronSeedGenerator.cc.

References LogDebug, reco::ElectronSeed::setCaloCluster(), and v.

 {
  if (!pixelHits.empty())
   { LogDebug("ElectronSeedGenerator") << "Compatible "<<(positron?"positron":"electron")<<" hits found." ; }

  std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> >::iterator v ;
  for ( v = pixelHits.begin() ; v != pixelHits.end() ; v++ )
   {
    if (!positron)
     { (*v).first.invert() ; }
    if (!prepareElTrackSeed((*v).first.recHit(),(*v).second,vertexPos))
     { continue ; }
    reco::ElectronSeed seed(pts_,recHits_,dir) ;
    seed.setCaloCluster(cluster) ;
    addSeed(seed,0,positron,out) ;
   }
 }

void ElectronSeedGenerator::seedsFromThisCluster ( edm::Ref< reco::SuperClusterCollection >  seedCluster, float  hoe1, float  hoe2, reco::ElectronSeedCollection &  out  )

private

Definition at line 282 of file ElectronSeedGenerator.cc.

References alongMomentum, dir, ele_convert(), eta(), hitfit::return, and mathSSE::sqrt().

{
  float clusterEnergy = seedCluster->energy() ;
  GlobalPoint clusterPos
    ( seedCluster->position().x(),
      seedCluster->position().y(),
      seedCluster->position().z() ) ;
  reco::ElectronSeed::CaloClusterRef caloCluster(seedCluster) ;

  //LogDebug("") << "[ElectronSeedGenerator::seedsFromThisCluster] new supercluster with energy: " << clusterEnergy ;
  //LogDebug("") << "[ElectronSeedGenerator::seedsFromThisCluster] and position: " << clusterPos ;

  if (dynamicphiroad_)
   {
    float clusterEnergyT = clusterEnergy / cosh( EleRelPoint(clusterPos,theBeamSpot->position()).eta() ) ;

    float deltaPhi1 ;
    if (clusterEnergyT < lowPtThreshold_)
     { deltaPhi1= deltaPhi1Low_ ; }
    else if (clusterEnergyT > highPtThreshold_)
     { deltaPhi1= deltaPhi1High_ ; }
    else
     { deltaPhi1 = deltaPhi1Coef1_ + deltaPhi1Coef2_/clusterEnergyT ; }

    float ephimin1 = -deltaPhi1*sizeWindowENeg_ ;
    float ephimax1 =  deltaPhi1*(1.-sizeWindowENeg_);
    float pphimin1 = -deltaPhi1*(1.-sizeWindowENeg_);
    float pphimax1 =  deltaPhi1*sizeWindowENeg_;

    float phimin2B  = -deltaPhi2B_/2. ;
    float phimax2B  =  deltaPhi2B_/2. ;
    float phimin2F  = -deltaPhi2F_/2. ;
    float phimax2F  =  deltaPhi2F_/2. ;


    myMatchEle->set1stLayer(ephimin1,ephimax1);
    myMatchPos->set1stLayer(pphimin1,pphimax1);
    myMatchEle->set2ndLayer(phimin2B,phimax2B, phimin2F,phimax2F);
    myMatchPos->set2ndLayer(phimin2B,phimax2B, phimin2F,phimax2F);
   }

  PropagationDirection dir = alongMomentum ;

  if (!useRecoVertex_) // here use the beam spot position
   {
    double sigmaZ=theBeamSpot->sigmaZ();
    double sigmaZ0Error=theBeamSpot->sigmaZ0Error();
    double sq=sqrt(sigmaZ*sigmaZ+sigmaZ0Error*sigmaZ0Error);
    double myZmin1=theBeamSpot->position().z()-nSigmasDeltaZ1_*sq;
    double myZmax1=theBeamSpot->position().z()+nSigmasDeltaZ1_*sq;

    GlobalPoint vertexPos ;
    ele_convert(theBeamSpot->position(),vertexPos) ;

    myMatchEle->set1stLayerZRange(myZmin1,myZmax1);
    myMatchPos->set1stLayerZRange(myZmin1,myZmax1);

    if (!fromTrackerSeeds_)
     {
      // try electron
      std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> > elePixelHits
       = myMatchEle->compatibleHits(clusterPos,vertexPos,clusterEnergy,-1.) ;
      GlobalPoint eleVertex(theBeamSpot->position().x(),theBeamSpot->position().y(),myMatchEle->getVertex()) ;
      seedsFromRecHits(elePixelHits,dir,eleVertex,caloCluster,out,false) ;
      // try positron
      std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> > posPixelHits
       = myMatchPos->compatibleHits(clusterPos,vertexPos,clusterEnergy,1.) ;
      GlobalPoint posVertex(theBeamSpot->position().x(),theBeamSpot->position().y(),myMatchPos->getVertex()) ;
      seedsFromRecHits(posPixelHits,dir,posVertex,caloCluster,out,true) ;
     }
    else
     {
      // try electron
      std::vector<SeedWithInfo> elePixelSeeds
       = myMatchEle->compatibleSeeds(theInitialSeedColl,clusterPos,vertexPos,clusterEnergy,-1.) ;
      seedsFromTrajectorySeeds(elePixelSeeds,caloCluster,hoe1,hoe2,out,false) ;
      // try positron
      std::vector<SeedWithInfo> posPixelSeeds
       = myMatchPos->compatibleSeeds(theInitialSeedColl,clusterPos,vertexPos,clusterEnergy,1.) ;
      seedsFromTrajectorySeeds(posPixelSeeds,caloCluster,hoe1,hoe2,out,true) ;
     }

   }
  else // here we use the reco vertices
   {

    myMatchEle->setUseRecoVertex(true) ; //Hit matchers need to know that the vertex is known
    myMatchPos->setUseRecoVertex(true) ;

    const  std::vector<reco::Vertex> * vtxCollection = theVertices.product() ;
    std::vector<reco::Vertex>::const_iterator vtxIter ;
    for (vtxIter = vtxCollection->begin(); vtxIter != vtxCollection->end() ; vtxIter++)
     {

      GlobalPoint vertexPos(vtxIter->position().x(),vtxIter->position().y(),vtxIter->position().z());
      double myZmin1, myZmax1 ;
      if (vertexPos.z()==theBeamSpot->position().z())
       { // in case vetex not found
        double sigmaZ=theBeamSpot->sigmaZ();
        double sigmaZ0Error=theBeamSpot->sigmaZ0Error();
        double sq=sqrt(sigmaZ*sigmaZ+sigmaZ0Error*sigmaZ0Error);
        myZmin1=theBeamSpot->position().z()-nSigmasDeltaZ1_*sq;
        myZmax1=theBeamSpot->position().z()+nSigmasDeltaZ1_*sq;
       }
      else
       { // a vertex has been recoed
        myZmin1=vtxIter->position().z()-deltaZ1WithVertex_;
        myZmax1=vtxIter->position().z()+deltaZ1WithVertex_;
       }

      myMatchEle->set1stLayerZRange(myZmin1,myZmax1);
      myMatchPos->set1stLayerZRange(myZmin1,myZmax1);

      if (!fromTrackerSeeds_)
       {
        // try electron
        std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> > elePixelHits
         = myMatchEle->compatibleHits(clusterPos,vertexPos,clusterEnergy,-1.) ;
        seedsFromRecHits(elePixelHits,dir,vertexPos,caloCluster,out,false) ;
        // try positron
          std::vector<std::pair<RecHitWithDist,ConstRecHitPointer> > posPixelHits
           = myMatchPos->compatibleHits(clusterPos,vertexPos,clusterEnergy,1.) ;
        seedsFromRecHits(posPixelHits,dir,vertexPos,caloCluster,out,true) ;
       }
      else
       {
        // try electron
        std::vector<SeedWithInfo> elePixelSeeds
         = myMatchEle->compatibleSeeds(theInitialSeedColl,clusterPos,vertexPos,clusterEnergy,-1.) ;
        seedsFromTrajectorySeeds(elePixelSeeds,caloCluster,hoe1,hoe2,out,false) ;
        // try positron
        std::vector<SeedWithInfo> posPixelSeeds
         = myMatchPos->compatibleSeeds(theInitialSeedColl,clusterPos,vertexPos,clusterEnergy,1.) ;
        seedsFromTrajectorySeeds(posPixelSeeds,caloCluster,hoe1,hoe2,out,true) ;
       }
     }
   }

  return ;
 }

void ElectronSeedGenerator::seedsFromTrajectorySeeds ( const std::vector< SeedWithInfo > &  elePixelSeeds, const reco::ElectronSeed::CaloClusterRef &  cluster, float  hoe1, float  hoe2, reco::ElectronSeedCollection &  out, bool  positron  )

private

Definition at line 449 of file ElectronSeedGenerator.cc.

References LogDebug, alignCSCRings::s, and reco::ElectronSeed::setCaloCluster().

 {
  if (!pixelSeeds.empty())
   { LogDebug("ElectronSeedGenerator") << "Compatible "<<(positron?"positron":"electron")<<" seeds found." ; }

  std::vector<SeedWithInfo>::const_iterator s;
  for ( s = pixelSeeds.begin() ; s != pixelSeeds.end() ; s++ )
   {
    reco::ElectronSeed seed(s->seed()) ;
    seed.setCaloCluster(cluster,s->hitsMask(),s->subDet2(),s->subDet1(),hoe1,hoe2) ;
    addSeed(seed,&*s,positron,out) ;
   }
 }

void ElectronSeedGenerator::setupES

(

const edm::EventSetup &

setup

)

Definition at line 148 of file ElectronSeedGenerator.cc.

References alongMomentum, cacheIDCkfComp_, edm::eventsetup::EventSetupRecord::cacheIdentifier(), cacheIDMagField_, cacheIDNavSchool_, cacheIDTrkGeom_, fromTrackerSeeds_, edm::EventSetup::get(), myMatchEle, myMatchPos, edm::ESHandle< class >::product(), PixelHitMatcher::setES(), theMagField, theMeasurementTracker, theMeasurementTrackerName, theNavigationSchool, thePropagator, and theTrackerGeometry.

Referenced by ElectronSeedProducer::produce().

                                                              {

  // get records if necessary (called once per event)
  bool tochange=false;

  if (cacheIDMagField_!=setup.get<IdealMagneticFieldRecord>().cacheIdentifier()) {
    setup.get<IdealMagneticFieldRecord>().get(theMagField);
    cacheIDMagField_=setup.get<IdealMagneticFieldRecord>().cacheIdentifier();
    if (thePropagator) delete thePropagator;
    thePropagator = new PropagatorWithMaterial(alongMomentum,.000511,&(*theMagField));
    tochange=true;
  }

  if (!fromTrackerSeeds_ && cacheIDCkfComp_!=setup.get<CkfComponentsRecord>().cacheIdentifier()) {
    edm::ESHandle<MeasurementTracker> measurementTrackerHandle;
    setup.get<CkfComponentsRecord>().get(theMeasurementTrackerName,measurementTrackerHandle);
    cacheIDCkfComp_=setup.get<CkfComponentsRecord>().cacheIdentifier();
    theMeasurementTracker = measurementTrackerHandle.product();
    tochange=true;
  }

  //edm::ESHandle<TrackerGeometry> trackerGeometryHandle;
  if (cacheIDTrkGeom_!=setup.get<TrackerDigiGeometryRecord>().cacheIdentifier()) {
    cacheIDTrkGeom_=setup.get<TrackerDigiGeometryRecord>().cacheIdentifier();
    setup.get<TrackerDigiGeometryRecord>().get(theTrackerGeometry);
    tochange=true; //FIXME
  }

  if (tochange) {
    myMatchEle->setES(&(*theMagField),theMeasurementTracker,theTrackerGeometry.product());
    myMatchPos->setES(&(*theMagField),theMeasurementTracker,theTrackerGeometry.product());
  }

  if (cacheIDNavSchool_!=setup.get<NavigationSchoolRecord>().cacheIdentifier()) {
    edm::ESHandle<NavigationSchool> nav;
    setup.get<NavigationSchoolRecord>().get("SimpleNavigationSchool", nav);
    cacheIDNavSchool_=setup.get<NavigationSchoolRecord>().cacheIdentifier();
    theNavigationSchool = nav.product();
  }

//  if (cacheIDGeom_!=setup.get<TrackerRecoGeometryRecord>().cacheIdentifier()) {
//    setup.get<TrackerRecoGeometryRecord>().get( theGeomSearchTracker );
//    cacheIDGeom_=setup.get<TrackerRecoGeometryRecord>().cacheIdentifier();
//  }

}

Member Data Documentation

edm::InputTag ElectronSeedGenerator::beamSpotTag_

private

Definition at line 82 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

unsigned long long ElectronSeedGenerator::cacheIDCkfComp_

private

Definition at line 127 of file ElectronSeedGenerator.h.

Referenced by setupES().

unsigned long long ElectronSeedGenerator::cacheIDMagField_

private

Definition at line 124 of file ElectronSeedGenerator.h.

Referenced by setupES().

unsigned long long ElectronSeedGenerator::cacheIDNavSchool_

private

Definition at line 126 of file ElectronSeedGenerator.h.

Referenced by setupES().

unsigned long long ElectronSeedGenerator::cacheIDTrkGeom_

private

Definition at line 128 of file ElectronSeedGenerator.h.

Referenced by setupES().

double ElectronSeedGenerator::deltaPhi1Coef1_

private

Definition at line 98 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

double ElectronSeedGenerator::deltaPhi1Coef2_

private

Definition at line 99 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaPhi1High_

private

Definition at line 93 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaPhi1Low_

private

Definition at line 93 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaPhi2B_

private

Definition at line 94 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaPhi2F_

private

Definition at line 95 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::deltaZ1WithVertex_

private

Definition at line 87 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

bool ElectronSeedGenerator::dynamicphiroad_

private

Definition at line 74 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

bool ElectronSeedGenerator::fromTrackerSeeds_

private

Definition at line 75 of file ElectronSeedGenerator.h.

Referenced by setupES().

float ElectronSeedGenerator::highPtThreshold_

private

Definition at line 85 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::lowPtThreshold_

private

Definition at line 84 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

PixelHitMatcher* ElectronSeedGenerator::myMatchEle

private

Definition at line 101 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator(), setupES(), and ~ElectronSeedGenerator().

PixelHitMatcher* ElectronSeedGenerator::myMatchPos

private

Definition at line 102 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator(), setupES(), and ~ElectronSeedGenerator().

float ElectronSeedGenerator::nSigmasDeltaZ1_

private

Definition at line 86 of file ElectronSeedGenerator.h.

float ElectronSeedGenerator::phiMax2B_

private

Definition at line 90 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::phiMax2F_

private

Definition at line 92 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::phiMin2B_

private

Definition at line 89 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

float ElectronSeedGenerator::phiMin2F_

private

Definition at line 91 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

PTrajectoryStateOnDet ElectronSeedGenerator::pts_

private

Definition at line 121 of file ElectronSeedGenerator.h.

PRecHitContainer ElectronSeedGenerator::recHits_

private

Definition at line 120 of file ElectronSeedGenerator.h.

float ElectronSeedGenerator::sizeWindowENeg_

private

Definition at line 88 of file ElectronSeedGenerator.h.

edm::Handle<reco::BeamSpot> ElectronSeedGenerator::theBeamSpot

private

Definition at line 81 of file ElectronSeedGenerator.h.

TrajectorySeedCollection* ElectronSeedGenerator::theInitialSeedColl

private

Definition at line 105 of file ElectronSeedGenerator.h.

edm::ESHandle<MagneticField> ElectronSeedGenerator::theMagField

private

Definition at line 107 of file ElectronSeedGenerator.h.

Referenced by setupES().

const MeasurementTracker* ElectronSeedGenerator::theMeasurementTracker

private

Definition at line 114 of file ElectronSeedGenerator.h.

Referenced by setupES().

std::string ElectronSeedGenerator::theMeasurementTrackerName

private

Definition at line 113 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator(), and setupES().

const NavigationSchool* ElectronSeedGenerator::theNavigationSchool

private

Definition at line 115 of file ElectronSeedGenerator.h.

Referenced by setupES().

PropagatorWithMaterial* ElectronSeedGenerator::thePropagator

private

Definition at line 111 of file ElectronSeedGenerator.h.

Referenced by setupES(), and ~ElectronSeedGenerator().

const edm::EventSetup* ElectronSeedGenerator::theSetup

private

Definition at line 117 of file ElectronSeedGenerator.h.

edm::ESHandle<TrackerGeometry> ElectronSeedGenerator::theTrackerGeometry

private

Definition at line 108 of file ElectronSeedGenerator.h.

Referenced by setupES().

KFUpdator* ElectronSeedGenerator::theUpdator

private

Definition at line 110 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator(), and ~ElectronSeedGenerator().

edm::Handle<std::vector<reco::Vertex> > ElectronSeedGenerator::theVertices

private

Definition at line 78 of file ElectronSeedGenerator.h.

bool ElectronSeedGenerator::useRecoVertex_

private

Definition at line 77 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().

edm::InputTag ElectronSeedGenerator::verticesTag_

private

Definition at line 79 of file ElectronSeedGenerator.h.

Referenced by ElectronSeedGenerator().