#include <OutInConversionSeedFinder.h>

Inheritance diagram for OutInConversionSeedFinder:

Public Member Functions
void	makeSeeds (const edm::Handle< edm::View< reco::CaloCluster > > &allBc) override

virtual void	makeSeeds (const reco::CaloClusterPtr &aBC)

	OutInConversionSeedFinder (const edm::ParameterSet &config, edm::ConsumesCollector &&iC)

	~OutInConversionSeedFinder () override

Public Member Functions inherited from ConversionSeedFinder
void	clear ()

	ConversionSeedFinder ()

	ConversionSeedFinder (const edm::ParameterSet &config, edm::ConsumesCollector &iC)

const MeasurementTracker *	getMeasurementTracker () const

std::vector< const DetLayer * > const &	layerList () const

TrajectorySeedCollection &	seeds ()

virtual void	setCandidate (float e, GlobalPoint pos)

void	setEvent (const edm::Event &e)

void	setEventSetup (const edm::EventSetup &es)
	Initialize EventSetup objects at each event. More...

void	setMeasurementTracker (const MeasurementTracker *tracker) const

void	setNavigationSchool (const NavigationSchool *navigation)

virtual	~ConversionSeedFinder ()

Private Types
typedef FreeTrajectoryState	FTS

typedef TrajectoryStateOnSurface	TSOS

Private Member Functions
void	completeSeed (const TrajectoryMeasurement &m1, const FreeTrajectoryState &fts, const Propagator *, int layer)

void	createSeed (const TrajectoryMeasurement &m1, const TrajectoryMeasurement &m2)

FreeTrajectoryState	createSeedFTS (const TrajectoryMeasurement &m1, const TrajectoryMeasurement &m2) const

void	fillClusterSeeds (const reco::CaloClusterPtr &bc)

GlobalPoint	fixPointRadius (const TrajectoryMeasurement &) const

MeasurementEstimator *	makeEstimator (const DetLayer *, float dphi) const

std::pair< FreeTrajectoryState, bool >	makeTrackState (int charge) const

void	startSeed (const FreeTrajectoryState &)

Private Attributes
float	bcEcut_

float	bcEtcut_

edm::ParameterSet	conf_

int	maxNumberOfOutInSeedsPerBC_

int	nSeedsPerBC_

float	the2ndHitdphi_

float	the2ndHitdzConst_

float	the2ndHitdznSigma_

std::vector< TrajectoryMeasurement >	theFirstMeasurements_

bool	useEtCut_

Additional Inherited Members
Protected Member Functions inherited from ConversionSeedFinder
void	findLayers ()

void	findLayers (const FreeTrajectoryState &fts)

void	printLayer (int i) const

FreeTrajectoryState	trackStateFromClusters (int aCharge, const GlobalPoint &gpOrigine, PropagationDirection dir, float scaleFactor) const

Protected Attributes inherited from ConversionSeedFinder
edm::EDGetTokenT< reco::BeamSpot >	beamSpotToken_

PropagationDirection	dir_

edm::EDGetTokenT< MeasurementTrackerEvent >	measurementTrkToken_

float	theBCEnergy_

GlobalPoint	theBCPosition_

reco::BeamSpot	theBeamSpot_

edm::ESHandle< GeometricSearchTracker >	theGeomSearchTracker_

std::vector< const DetLayer * >	theLayerList_

const MeasurementTracker *	theMeasurementTracker_

std::string	theMeasurementTrackerName_

edm::ESHandle< MagneticField >	theMF_

const NavigationSchool *	theNavigationSchool_ = nullptr

const Propagator *	thePropagatorAlongMomentum_

const Propagator *	thePropagatorOppositeToMomentum_

reco::CaloCluster *	theSC_

float	theSCenergy_

GlobalPoint	theSCPosition_

TrajectorySeedCollection	theSeeds_

edm::Handle< MeasurementTrackerEvent >	theTrackerData_

const TrackingGeometry *	theTrackerGeom_

KFUpdator	theUpdator_

Detailed Description

Author: Nancy Marinelli, U. of Notre Dame, US

Definition at line 29 of file OutInConversionSeedFinder.h.

Member Typedef Documentation

◆ FTS

typedef FreeTrajectoryState OutInConversionSeedFinder::FTS

private

Definition at line 31 of file OutInConversionSeedFinder.h.

◆ TSOS

typedef TrajectoryStateOnSurface OutInConversionSeedFinder::TSOS

private

Definition at line 32 of file OutInConversionSeedFinder.h.

Constructor & Destructor Documentation

◆ OutInConversionSeedFinder()

OutInConversionSeedFinder::OutInConversionSeedFinder	(	const edm::ParameterSet &	config,
		edm::ConsumesCollector &&	iC
	)

Definition at line 34 of file OutInConversionSeedFinder.cc.

     : ConversionSeedFinder(conf, iC), conf_(conf) {
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder CTOR "
                                         << "\n";
  
   maxNumberOfOutInSeedsPerBC_ = conf_.getParameter<int>("maxNumOfSeedsOutIn");
   bcEtcut_ = conf_.getParameter<double>("bcEtCut");
   bcEcut_ = conf_.getParameter<double>("bcECut");
   useEtCut_ = conf_.getParameter<bool>("useEtCut");
   //the2ndHitdphi_ = 0.01;
   the2ndHitdphi_ = 0.03;
   the2ndHitdzConst_ = 5.;
   the2ndHitdznSigma_ = 2.;
 }

References bcEcut_, bcEtcut_, conf_, edm::ParameterSet::getParameter(), LogDebug, maxNumberOfOutInSeedsPerBC_, the2ndHitdphi_, the2ndHitdzConst_, the2ndHitdznSigma_, and useEtCut_.

◆ ~OutInConversionSeedFinder()

OutInConversionSeedFinder::~OutInConversionSeedFinder ( )

override

Definition at line 49 of file OutInConversionSeedFinder.cc.

                                                       {
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder DTOR "
                                         << "\n";
 }

References LogDebug.

Member Function Documentation

◆ completeSeed()

void OutInConversionSeedFinder::completeSeed	(	const TrajectoryMeasurement &	m1,
		const FreeTrajectoryState &	fts,
		const Propagator *	propagator,
		int	layer
	)

private

Definition at line 370 of file OutInConversionSeedFinder.cc.

                                                          {
   //std::cout <<  "OutInConversionSeedFinder::completeSeed ilayer " << ilayer << "\n";
  
   MeasurementEstimator* newEstimator = nullptr;
   const DetLayer* layer = theLayerList_[ilayer];
  
   if (layer->location() == GeomDetEnumerators::barrel) {
     // z error for 2nd hit is  2 sigma quadded with 5 cm
     LogDebug("OutInConversionSeedFinder") << " Barrel OutInConversionSeedFinder::completeSeed " << the2ndHitdznSigma_
                                           << " " << the2ndHitdzConst_ << " " << the2ndHitdphi_ << "\n";
     float dz = sqrt(the2ndHitdznSigma_ * the2ndHitdznSigma_ * m1.recHit()->globalPositionError().czz() +
                     the2ndHitdzConst_ * the2ndHitdzConst_);
     newEstimator = new ConversionBarrelEstimator(-the2ndHitdphi_, the2ndHitdphi_, -dz, dz);
   } else {
     LogDebug("OutInConversionSeedFinder") << " EndCap OutInConversionSeedFinder::completeSeed " << the2ndHitdznSigma_
                                           << " " << the2ndHitdzConst_ << " " << the2ndHitdphi_ << "\n";
     // z error for 2nd hit is 2sigma quadded with 5 cm
     //float m1dr = m1.recHit().globalPositionError().rerr(m1.recHit().globalPosition());
     float m1dr = sqrt(m1.recHit()->localPositionError().yy());
     float dr = sqrt(the2ndHitdznSigma_ * the2ndHitdznSigma_ * m1dr * m1dr + the2ndHitdzConst_ * the2ndHitdznSigma_);
     // LogDebug("OutInConversionSeedFinder") << "second hit forward dr " << dr << " this hit " << m1dr << endl;
     newEstimator = new ConversionForwardEstimator(-the2ndHitdphi_, the2ndHitdphi_, dr);
   }
  
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::completeSeed  ilayer " << ilayer << "\n";
  
   // Get the measurements consistent with the FTS and the Estimator
   TSOS tsos(fts, layer->surface());
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::completeSeed propagationDirection  "
                                         << int(propagator->propagationDirection()) << "\n";
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::completeSeed pointer to estimator "
                                         << newEstimator << "\n";
  
   LayerMeasurements theLayerMeasurements_(*this->getMeasurementTracker(), *theTrackerData_);
   std::vector<TrajectoryMeasurement> measurements =
       theLayerMeasurements_.measurements(*layer, tsos, *propagator, *newEstimator);
   //std::cout << "OutInConversionSeedFinder::completeSeed Found " << measurements.size() << " second hits " << "\n";
   delete newEstimator;
  
   for (unsigned int i = 0; i < measurements.size(); ++i) {
     if (measurements[i].recHit()->isValid()) {
       createSeed(m1, measurements[i]);
     }
   }
  
   //LogDebug("OutInConversionSeedFinder") << "COMPLETED " << theSeeds_.size() << " SEEDS " << "\n";
 }

References GeomDetEnumerators::barrel, createSeed(), flavorHistoryFilter_cfi::dr, PVValHelper::dz, ConversionSeedFinder::getMeasurementTracker(), mps_fire::i, createfilelist::int, DetLayer::location(), LogDebug, LayerMeasurements::measurements(), TrackCandidateProducer_cfi::propagator, rpcPointValidation_cfi::recHit, TrajectoryMeasurement::recHit(), mathSSE::sqrt(), GeometricSearchDet::surface(), the2ndHitdphi_, the2ndHitdzConst_, the2ndHitdznSigma_, ConversionSeedFinder::theLayerList_, and ConversionSeedFinder::theTrackerData_.

Referenced by startSeed().

◆ createSeed()

void OutInConversionSeedFinder::createSeed	(	const TrajectoryMeasurement &	m1,
		const TrajectoryMeasurement &	m2
	)

private

Definition at line 421 of file OutInConversionSeedFinder.cc.

                                                                                                            {
   //std::cout  << "OutInConversionSeedFinder::createSeed  from hit1 " << m1.recHit()->globalPosition() << " r1 " << m1.recHit()->globalPosition().perp() << " and hit2 " << m2.recHit()->globalPosition() << " r2 " << m2.recHit()->globalPosition().perp() << "\n";
  
   FreeTrajectoryState fts = createSeedFTS(m1, m2);
  
   //std::cout << "OutInConversionSeedFinder::createSeed First point errors " <<m1.recHit()->parametersError() << "\n";
   // std::cout << "original cluster FTS " << fts <<"\n";
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::createSeed First point errors "
                                         << m1.recHit()->parametersError() << "\n";
   LogDebug("OutInConversionSeedFinder") << "original cluster FTS " << fts << "\n";
  
   //std::cout  << "OutInConversionSeedFinder::createSeed propagation dir " << int( thePropagatorOppositeToMomentum_->propagationDirection() ) << "\n";
   TrajectoryStateOnSurface state1 = thePropagatorOppositeToMomentum_->propagate(fts, m1.recHit()->det()->surface());
  
   // LogDebug("OutInConversionSeedFinder") << "hit surface " << h1.det().surface().position() << endl;
   // LogDebug("OutInConversionSeedFinder") << "prop to " << typeid(h1.det().surface()).name() << endl;
   // LogDebug("OutInConversionSeedFinder") << "prop to first hit " << state1 << endl;
   // LogDebug("OutInConversionSeedFinder") << "update to " << h1.globalPosition() << endl;
  
   if (state1.isValid()) {
     TrajectoryStateOnSurface updatedState1 = theUpdator_.update(state1, *m1.recHit());
  
     if (updatedState1.isValid()) {
       TrajectoryStateOnSurface state2 = thePropagatorOppositeToMomentum_->propagate(
           *updatedState1.freeTrajectoryState(), m2.recHit()->det()->surface());
  
       if (state2.isValid()) {
         TrajectoryStateOnSurface updatedState2 = theUpdator_.update(state2, *m2.recHit());
         TrajectoryMeasurement meas1(state1, updatedState1, m1.recHit(), m1.estimate(), m1.layer());
         TrajectoryMeasurement meas2(state2, updatedState2, m2.recHit(), m2.estimate(), m2.layer());
  
         edm::OwnVector<TrackingRecHit> myHits;
         myHits.push_back(meas1.recHit()->hit()->clone());
         myHits.push_back(meas2.recHit()->hit()->clone());
  
         if (nSeedsPerBC_ >= maxNumberOfOutInSeedsPerBC_)
           return;
  
         PTrajectoryStateOnDet ptsod =
             trajectoryStateTransform::persistentState(state2, meas2.recHit()->hit()->geographicalId().rawId());
  
         LogDebug("OutInConversionSeedFinder")
             << "OutInConversionSeedFinder::createSeed new seed  from state " << state2.globalPosition() << "\n";
         LogDebug("OutInConversionSeedFinder")
             << "OutInConversionSeedFinder::createSeed new seed  ptsod " << ptsod.parameters().position() << " R "
             << ptsod.parameters().position().perp() << " phi " << ptsod.parameters().position().phi() << " eta "
             << ptsod.parameters().position().eta() << "\n";
  
         theSeeds_.push_back(TrajectorySeed(ptsod, myHits, oppositeToMomentum));
         nSeedsPerBC_++;
       }
     }
   }
 }

References createSeedFTS(), TrajectoryMeasurement::estimate(), PV3DBase< T, PVType, FrameType >::eta(), TrajectoryStateOnSurface::freeTrajectoryState(), TrajectoryStateOnSurface::globalPosition(), TrajectoryStateOnSurface::isValid(), TrajectoryMeasurement::layer(), LogDebug, maxNumberOfOutInSeedsPerBC_, nSeedsPerBC_, oppositeToMomentum, PTrajectoryStateOnDet::parameters(), PV3DBase< T, PVType, FrameType >::perp(), trajectoryStateTransform::persistentState(), PV3DBase< T, PVType, FrameType >::phi(), LocalTrajectoryParameters::position(), Propagator::propagate(), edm::OwnVector< T, P >::push_back(), TrajectoryMeasurement::recHit(), ConversionSeedFinder::thePropagatorOppositeToMomentum_, ConversionSeedFinder::theSeeds_, ConversionSeedFinder::theUpdator_, and KFUpdator::update().

Referenced by completeSeed().

◆ createSeedFTS()

FreeTrajectoryState OutInConversionSeedFinder::createSeedFTS	(	const TrajectoryMeasurement &	m1,
		const TrajectoryMeasurement &	m2
	)		const

private

Definition at line 476 of file OutInConversionSeedFinder.cc.

                                                                                                     {
   GlobalPoint xmeas = fixPointRadius(m1);
   GlobalPoint xvert = fixPointRadius(m2);
  
   float pt = theSCenergy_ * sin(theSCPosition_.theta());
   float pz = theSCenergy_ * cos(theSCPosition_.theta());
  
   // doesn't work at all for endcap, where r is badly measured
   //float dphidr = (p1.phi()-p2.phi())/(p1.perp()-p2.perp());
   //int charge = (dphidr > 0.) ? -1 : 1;
   int charge = m2.predictedState().charge();
  
   double BInTesla = theMF_->inTesla(xmeas).z();
   GlobalVector xdiff = xmeas - xvert;
  
   double phi = xdiff.phi();
   double pxOld = pt * cos(phi);
   double pyOld = pt * sin(phi);
   double RadCurv = 100 * pt / (BInTesla * 0.29979);
   double alpha = asin(0.5 * xdiff.perp() / RadCurv);
   float ca = cos(charge * alpha);
   float sa = sin(charge * alpha);
   double pxNew = ca * pxOld + sa * pyOld;
   double pyNew = -sa * pxOld + ca * pyOld;
   GlobalVector pNew(pxNew, pyNew, pz);
  
   GlobalTrajectoryParameters gp(xmeas, pNew, charge, &(*theMF_));
  
   AlgebraicSymMatrix55 m = AlgebraicMatrixID();
   m(0, 0) = 0.05;
   m(1, 1) = 0.02;
   m(2, 2) = 0.007;
   m(3, 3) = 10.;
   m(4, 4) = 10.;
   //std::cout  << "OutInConversionSeedFinder::createSeedFTS " <<  FreeTrajectoryState(gp, CurvilinearTrajectoryError(m))  << "\n";
   return FreeTrajectoryState(gp, CurvilinearTrajectoryError(m));
 }

References zMuMuMuonUserData::alpha, ALCARECOTkAlJpsiMuMu_cff::charge, TrajectoryStateOnSurface::charge(), funct::cos(), fixPointRadius(), runTauDisplay::gp, MagneticField::inTesla(), visualization-live-secondInstance_cfg::m, PV3DBase< T, PVType, FrameType >::perp(), phi, PV3DBase< T, PVType, FrameType >::phi(), TrajectoryMeasurement::predictedState(), DiDispStaMuonMonitor_cfi::pt, funct::sin(), ConversionSeedFinder::theMF_, ConversionSeedFinder::theSCenergy_, ConversionSeedFinder::theSCPosition_, PV3DBase< T, PVType, FrameType >::theta(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by createSeed().

◆ fillClusterSeeds()

void OutInConversionSeedFinder::fillClusterSeeds ( const reco::CaloClusterPtr & bc )

private

negative charge state

positive charge state

Definition at line 171 of file OutInConversionSeedFinder.cc.

                                                                              {
   theFirstMeasurements_.clear();
   FreeTrajectoryState fts;
  
   if (makeTrackState(-1).second) {
     fts = makeTrackState(-1).first;
     startSeed(fts);
   }
  
   if (makeTrackState(1).second) {
     fts = makeTrackState(1).first;
     startSeed(fts);
   }
   theFirstMeasurements_.clear();
 }

References makeTrackState(), edm::second(), startSeed(), and theFirstMeasurements_.

Referenced by makeSeeds().

◆ fixPointRadius()

GlobalPoint OutInConversionSeedFinder::fixPointRadius ( const TrajectoryMeasurement & m1 ) const

private

Definition at line 515 of file OutInConversionSeedFinder.cc.

                                                                                            {
   GlobalPoint p1 = m1.recHit()->globalPosition();
   GlobalPoint p2;
   if (m1.layer()->location() == GeomDetEnumerators::barrel) {
     p2 = p1;
   } else {
     float z = p1.z();
     float phi = p1.phi();
     float theta = theSCPosition_.theta();
     float r = p1.z() * tan(theta);
     p2 = GlobalPoint(r * cos(phi), r * sin(phi), z);
     // LogDebug("OutInConversionSeedFinder") << "fixing point radius " << p2 << " from " << p1 << endl;
   }
   return p2;
 }

References GeomDetEnumerators::barrel, funct::cos(), TrajectoryMeasurement::layer(), DetLayer::location(), p1, p2, phi, alignCSCRings::r, TrajectoryMeasurement::recHit(), funct::sin(), funct::tan(), ConversionSeedFinder::theSCPosition_, PV3DBase< T, PVType, FrameType >::theta(), theta(), and z.

Referenced by createSeedFTS().

◆ makeEstimator()

MeasurementEstimator * OutInConversionSeedFinder::makeEstimator	(	const DetLayer *	layer,
		float	dphi
	)		const

private

Definition at line 338 of file OutInConversionSeedFinder.cc.

                                                                                                       {
   //std::cout  << "OutInConversionSeedFinder::makeEstimator  " << "\n";
  
   MeasurementEstimator* newEstimator = nullptr;
  
   if (layer->location() == GeomDetEnumerators::barrel) {
     const BarrelDetLayer* barrelLayer = dynamic_cast<const BarrelDetLayer*>(layer);
     LogDebug("OutInConversionSeedFinder")
         << "OutInConversionSeedFinder::makeEstimator Barrel  r = " << barrelLayer->specificSurface().radius() << " "
         << "\n";
     float r = barrelLayer->specificSurface().radius();
     float zrange = 15. * (1. - r / theBCPosition_.perp());
     newEstimator = new ConversionBarrelEstimator(-dphi, dphi, -zrange, zrange);
   }
  
   if (layer->location() == GeomDetEnumerators::endcap) {
     const ForwardDetLayer* forwardLayer = dynamic_cast<const ForwardDetLayer*>(layer);
     LogDebug("OutInConversionSeedFinder")
         << "OutInConversionSeedFinder::makeEstimator Endcap r = " << forwardLayer->specificSurface().innerRadius()
         << " R " << forwardLayer->specificSurface().outerRadius() << " Z "
         << forwardLayer->specificSurface().position().z() << "\n";
  
     float zc = fabs(theBCPosition_.z());
     float z = fabs(forwardLayer->surface().position().z());
  
     float rrange = 15. * theBCPosition_.perp() * (zc - z) / (zc * zc - 15. * zc);
     newEstimator = new ConversionForwardEstimator(-dphi, dphi, rrange);
   }
  
   return newEstimator;
 }

References GeomDetEnumerators::barrel, GeomDetEnumerators::endcap, DetLayer::location(), LogDebug, PV3DBase< T, PVType, FrameType >::perp(), GloballyPositioned< T >::position(), alignCSCRings::r, BarrelDetLayer::specificSurface(), ForwardDetLayer::specificSurface(), ForwardDetLayer::surface(), ConversionSeedFinder::theBCPosition_, z, PV3DBase< T, PVType, FrameType >::z(), and TkClusParameters_cff::zrange.

Referenced by startSeed().

◆ makeSeeds() [1/2]

void OutInConversionSeedFinder::makeSeeds ( const edm::Handle< edm::View< reco::CaloCluster > > & allBc )

overridevirtual

Implements ConversionSeedFinder.

Definition at line 54 of file OutInConversionSeedFinder.cc.

                                                                                            {
   theSeeds_.clear();
  
   //  std::cout  << "  OutInConversionSeedFinder::makeSeeds() " << "\n";
  
   // debug
   //  std::cout << "  OutInConversionSeedFinder::makeSeeds() SC position " << theSCPosition_.x() << " " << theSCPosition_.y() << " " << theSCPosition_.z() << "\n";
   // std::cout << " SC eta  " <<  theSCPosition_.eta() <<  " SC phi  " <<  theSCPosition_.phi() << "\n";
   // std::cout << "  OutInConversionSeedFinder::makeSeeds() SC energy " << theSCenergy_  << "\n";
   //
  
   findLayers();
  
   //  std::cout  << " Check Calo cluster collection size " << allBC->size() << "\n";
  
   float theSCPhi = theSCPosition_.phi();
   float theSCEta = theSCPosition_.eta();
  
   //  Loop over the Calo Clusters  in the event looking for seeds
   LogDebug("OutInConversionSeedFinder") << "  OutInConversionSeedFinder::makeSeeds() All BC in the event "
                                         << "\n";
   for (unsigned i = 0; i < allBC->size(); ++i) {
     nSeedsPerBC_ = 0;
  
     const reco::CaloCluster& theBC = allBC->at(i);
     const math::XYZPoint& rawBCpos = theBC.position();
  
     theBCPosition_ = GlobalPoint(rawBCpos.x(), rawBCpos.y(), rawBCpos.z());
     float theBcEta = theBCPosition_.eta();
     float theBcPhi = theBCPosition_.phi();
     //    float  dPhi= theBcPhi-theSCPhi;
     theBCEnergy_ = theBC.energy();
  
     float EtOrECut = bcEcut_;
     if (useEtCut_) {
       theBCEnergy_ = ptFast(theBCEnergy_, rawBCpos, math::XYZPoint(0, 0, 0));
       EtOrECut = bcEtcut_;
     }
  
     if (theBCEnergy_ < EtOrECut)
       continue;
     // std::cout << "  OutInConversionSeedFinder::makeSeeds() BC eta  " << theBcEta << " phi " <<  theBcPhi << " BC transverse energy " << theBCEnergy_ << " dPhi " << fabs(theBcPhi-theSCPhi) << " dEta " <<  fabs(theBcEta-theSCEta) << "\n";
  
     LogDebug("OutInConversionSeedFinder")
         << "  OutInConversionSeedFinder::makeSeeds() Passing the >=1.5 GeV cut  BC eta  " << theBcEta << " phi "
         << theBcPhi << " BC energy " << theBCEnergy_ << "\n";
  
     if (fabs(theBcEta - theSCEta) < 0.015 && reco::deltaPhi(theBcPhi, theSCPhi) < 0.3) {
       LogDebug("OutInConversionSeedFinder")
           << "  OutInConversionSeedFinder::makeSeeds() in et and phi range passed to the analysis "
           << "\n";
       fillClusterSeeds(allBC->ptrAt(i));
     }
   }
  
   //  std::cout << "Built vector of seeds of size  " << theSeeds_.size() <<  "\n" ;
  
   /*
   int nSeed=0;
   for ( std::vector<TrajectorySeed>::const_iterator iSeed= theSeeds_.begin(); iSeed != theSeeds_.end(); ++iSeed) {
     nSeed++;
     PTrajectoryStateOnDet  ptsod=iSeed->startingState();
     LogDebug("OutInConversionSeedFinder") << nSeed << ")  Direction " << iSeed->direction() << " Num of hits " << iSeed->nHits() <<  " starting state position " << ptsod.parameters().position() << " R " << ptsod.parameters().position().perp() << " phi " << ptsod.parameters().position().phi() << " eta " << ptsod.parameters().position().eta() << "\n" ;
     
     
     DetId tmpId = DetId( iSeed->startingState().detId());
     const GeomDet* tmpDet  = this->getMeasurementTracker()->geomTracker()->idToDet( tmpId );
     GlobalVector gv = tmpDet->surface().toGlobal( iSeed->startingState().parameters().momentum() );
     
     LogDebug("OutInConversionSeedFinder") << "seed perp,phi,eta : " 
                       << gv.perp() << " , " 
                       << gv.phi() << " , " 
                       << gv.eta() << "\n" ; ;
     
  
  
  
     TrajectorySeed::range hitRange = iSeed->recHits();
     for (TrajectorySeed::const_iterator ihit = hitRange.first; ihit != hitRange.second; ihit++) {
    
       if ( ihit->isValid() ) {
  
     LogDebug("OutInConversionSeedFinder") << " Valid hit global position " << this->getMeasurementTracker()->geomTracker()->idToDet((ihit)->geographicalId())->surface().toGlobal((ihit)->localPosition()) << " R " << this->getMeasurementTracker()->geomTracker()->idToDet((ihit)->geographicalId())->surface().toGlobal((ihit)->localPosition()).perp() << " phi " << this->getMeasurementTracker()->geomTracker()->idToDet((ihit)->geographicalId())->surface().toGlobal((ihit)->localPosition()).phi() << " eta " << this->getMeasurementTracker()->geomTracker()->idToDet((ihit)->geographicalId())->surface().toGlobal((ihit)->localPosition()).eta() <<    "\n" ;
  
       }
     }
   } 
   
   */
 }

References bcEcut_, bcEtcut_, reco::deltaPhi(), reco::CaloCluster::energy(), PV3DBase< T, PVType, FrameType >::eta(), fillClusterSeeds(), ConversionSeedFinder::findLayers(), mps_fire::i, LogDebug, nSeedsPerBC_, PV3DBase< T, PVType, FrameType >::phi(), reco::CaloCluster::position(), ptFast(), ConversionSeedFinder::theBCEnergy_, ConversionSeedFinder::theBCPosition_, ConversionSeedFinder::theSCPosition_, ConversionSeedFinder::theSeeds_, and useEtCut_.

◆ makeSeeds() [2/2]

void OutInConversionSeedFinder::makeSeeds ( const reco::CaloClusterPtr & aBC )

virtual

Definition at line 146 of file OutInConversionSeedFinder.cc.

                                                                        {
   theSeeds_.clear();
  
   findLayers();
  
   float theSCPhi = theSCPosition_.phi();
   float theSCEta = theSCPosition_.eta();
  
   nSeedsPerBC_ = 0;
  
   // theBCEnergy_=aBC->energy();
   theBCEnergy_ = ptFast(aBC->energy(), aBC->position(), math::XYZPoint(0, 0, 0));
   theBCPosition_ = GlobalPoint(aBC->position().x(), aBC->position().y(), aBC->position().z());
   float theBcEta = theBCPosition_.eta();
   float theBcPhi = theBCPosition_.phi();
   //  float  dPhi= theBcPhi-theSCPhi;
  
   if (theBCEnergy_ < bcEtcut_)
     return;
  
   if (fabs(theBcEta - theSCEta) < 0.015 && fabs(theBcPhi - theSCPhi) < 0.25) {
     fillClusterSeeds(aBC);
   }
 }

References bcEtcut_, PV3DBase< T, PVType, FrameType >::eta(), fillClusterSeeds(), ConversionSeedFinder::findLayers(), nSeedsPerBC_, PV3DBase< T, PVType, FrameType >::phi(), ptFast(), ConversionSeedFinder::theBCEnergy_, ConversionSeedFinder::theBCPosition_, ConversionSeedFinder::theSCPosition_, and ConversionSeedFinder::theSeeds_.

◆ makeTrackState()

std::pair< FreeTrajectoryState, bool > OutInConversionSeedFinder::makeTrackState ( int charge ) const

private

Definition at line 189 of file OutInConversionSeedFinder.cc.

                                                                                              {
   std::pair<FreeTrajectoryState, bool> result;
   result.second = false;
  
   //std::cout << "  OutInConversionSeedFinder:makeTrackState " << "\n";
  
   //  Old GlobalPoint gpOrigine(theBCPosition_.x()*0.3, theBCPosition_.y()*0.3, theBCPosition_.z()*0.3) ;
   //  GlobalPoint gpOrigine(0.,0.,0.);
  
   GlobalPoint gpOrigine(theBeamSpot_.position().x(), theBeamSpot_.position().y(), theBeamSpot_.position().z());
   GlobalVector gvBcRadius = theBCPosition_ - gpOrigine;
   HepGeom::Point3D<double> radiusBc(gvBcRadius.x(), gvBcRadius.y(), gvBcRadius.z());
   HepGeom::Point3D<double> momentumWithoutCurvature = radiusBc.unit() * theBCEnergy_;
  
   // compute momentum direction at calo
   double curvature = theMF_->inTesla(theBCPosition_).z() * c_light * 1.e-3 / momentumWithoutCurvature.perp();
   curvature /= 100.;  // in cm-1 !!
  
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::makeTrackState gpOrigine " << gpOrigine.x()
                                         << " " << gpOrigine.y() << " " << gpOrigine.z() << " momentumWithoutCurvature "
                                         << momentumWithoutCurvature.mag() << " curvature " << curvature << "\n";
  
   // define rotation angle
   float R = theBCPosition_.perp();
   float r = gpOrigine.perp();
   float rho = 1. / curvature;
   // from the formula for the intersection of two circles
   // turns out to be about 2/3 of the deflection of the old formula
   float d = sqrt(r * r + rho * rho);
   float u = rho + rho / d / d * (R * R - rho * rho) -
             r / d / d * sqrt((R * R - r * r + 2 * rho * R) * (R * R - r * r + 2 * rho * R));
   //float u = rho + rho/d/d*(R*R-rho*rho) ;
   if (u <= R)
     result.second = true;
  
   double sinAlpha = 0.5 * u / R;
   if (sinAlpha > (1. - 10 * DBL_EPSILON))
     sinAlpha = 1. - 10 * DBL_EPSILON;
   else if (sinAlpha < -(1. - 10 * DBL_EPSILON))
     sinAlpha = -(1. - 10 * DBL_EPSILON);
  
   double newdphi = charge * asin(sinAlpha);
  
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::makeTrackState charge " << charge << " R " << R
                                         << " u/R " << u / R << " asin(0.5*u/R) " << asin(sinAlpha) << "\n";
  
   HepGeom::Transform3D rotation = HepGeom::Rotate3D(newdphi, HepGeom::Vector3D<double>(0., 0., 1.));
  
   HepGeom::Point3D<double> momentumInTracker = momentumWithoutCurvature.transform(rotation);
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::makeTrackState  R " << R << " r " << r << " rho "
                                         << rho << " d " << d << " u " << u << " newdphi " << newdphi
                                         << " momentumInTracker " << momentumInTracker << "\n";
  
   HepGeom::Point3D<double> hepStartingPoint(gpOrigine.x(), gpOrigine.y(), gpOrigine.z());
  
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::makeTrackState hepStartingPoint "
                                         << hepStartingPoint << "\n";
  
   hepStartingPoint.transform(rotation);
  
   GlobalPoint startingPoint(hepStartingPoint.x(), hepStartingPoint.y(), hepStartingPoint.z());
  
   LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::makeTrackState startingPoint " << startingPoint
                                         << " calo position " << theBCPosition_ << "\n";
   GlobalVector gvTracker(momentumInTracker.x(), momentumInTracker.y(), momentumInTracker.z());
   GlobalTrajectoryParameters gtp(startingPoint, gvTracker, charge, &(*theMF_));
   // error matrix
   AlgebraicSymMatrix55 m = AlgebraicMatrixID();
   m(0, 0) = 0.1;
   m(1, 1) = 0.1;
   m(2, 2) = 0.1;
   m(3, 3) = 0.1;
   m(4, 4) = 0.1;
  
   //  std::cout << "OutInConversionSeedFinder::makeTrackState " <<  FreeTrajectoryState(gtp, CurvilinearTrajectoryError(m) ) << "\n";
  
   result.first = FreeTrajectoryState(gtp, CurvilinearTrajectoryError(m));
   return result;
 }

References ALCARECOTkAlJpsiMuMu_cff::charge, PixelRecoUtilities::curvature(), ztail::d, MagneticField::inTesla(), LogDebug, visualization-live-secondInstance_cfg::m, PV3DBase< T, PVType, FrameType >::perp(), reco::BeamSpot::position(), dttmaxenums::R, alignCSCRings::r, mps_fire::result, rho, idealTransformation::rotation, mathSSE::sqrt(), ConversionSeedFinder::theBCEnergy_, ConversionSeedFinder::theBCPosition_, ConversionSeedFinder::theBeamSpot_, ConversionSeedFinder::theMF_, and PV3DBase< T, PVType, FrameType >::z().

Referenced by fillClusterSeeds().

◆ startSeed()

void OutInConversionSeedFinder::startSeed ( const FreeTrajectoryState & fts )

private

Definition at line 269 of file OutInConversionSeedFinder.cc.

                                                                         {
   //  std::cout << "OutInConversionSeedFinder::startSeed layer list " << this->layerList().size() <<  "\n";
   //std::cout << "OutInConversionSeedFinder::startSeed  fts " << fts <<  "\n";
  
   std::vector<const DetLayer*> myLayers = layerList();
   if (myLayers.size() > 3) {
     for (unsigned int ilayer = myLayers.size() - 1; ilayer >= myLayers.size() - 2; --ilayer) {
       const DetLayer* layer = myLayers[ilayer];
  
       // allow the z of the hit to be within a straight line from a vertex
       // of +-15 cm to the cluster
       //      float dphi = 0.015;
       float dphi = 0.030;
  
       MeasurementEstimator* newEstimator = makeEstimator(layer, dphi);
  
       //std::cout << "OutInSeedFinder::startSeed propagationDirection  " << int(thePropagatorAlongMomentum_->propagationDirection() ) << "\n";
  
       TSOS tsos(fts, layer->surface());
  
       LogDebug("OutInConversionSeedFinder") << "OutInSeedFinder::startSeed  after  TSOS tsos(fts, layer->surface() ) "
                                             << "\n";
  
       LayerMeasurements theLayerMeasurements_(*this->getMeasurementTracker(), *theTrackerData_);
       theFirstMeasurements_ =
           theLayerMeasurements_.measurements(*layer, tsos, *thePropagatorAlongMomentum_, *newEstimator);
  
       //std::cout << "OutInSeedFinder::startSeed  after  theFirstMeasurements_   " << theFirstMeasurements_.size() <<  "\n";
  
       if (theFirstMeasurements_.size() > 1)  // always a dummy returned, too
         LogDebug("OutInConversionSeedFinder") << " Found " << theFirstMeasurements_.size() - 1 << " 1st hits in seed"
                                               << "\n";
  
       delete newEstimator;
  
       LogDebug("OutInConversionSeedFinder") << "OutInSeedFinder::startSeed Layer " << ilayer
                                             << " theFirstMeasurements_.size " << theFirstMeasurements_.size() << "\n";
  
       for (unsigned int i = 0; i < theFirstMeasurements_.size(); ++i) {
         TrajectoryMeasurement m1 = theFirstMeasurements_[i];
         if (m1.recHit()->isValid()) {
           // update the fts to start from this point.  much better than starting from
           // extrapolated point along the line
           GlobalPoint hitPoint = m1.recHit()->globalPosition();
           LogDebug("OutInConversionSeedFinder")
               << " Valid hit at R  " << m1.recHit()->globalPosition().perp() << " Z "
               << m1.recHit()->globalPosition().z() << " eta " << m1.recHit()->globalPosition().eta() << " phi "
               << m1.recHit()->globalPosition().phi() << " xyz " << m1.recHit()->globalPosition() << "\n";
  
           FreeTrajectoryState newfts = trackStateFromClusters(fts.charge(), hitPoint, alongMomentum, 0.8);
           //std::cout << "OutInConversionSeedFinder::startSeed  newfts " << newfts << "\n";
           LogDebug("OutInConversionSeedFinder") << "OutInConversionSeedFinder::startSeed  newfts " << newfts << "\n";
           LogDebug("OutInConversionSeedFinder")
               << "OutInConversionSeedFinder::startSeed propagationDirection  after switching "
               << int(thePropagatorOppositeToMomentum_->propagationDirection()) << "\n";
           //  std::cout << "OutInConversionSeedFinder::startSeed propagationDirection  after switching " << int(thePropagatorOppositeToMomentum_->propagationDirection() ) << "\n";
  
           completeSeed(m1, newfts, thePropagatorOppositeToMomentum_, ilayer - 1);
           // skip a layer, if you haven't already skipped the first layer
           if (ilayer == myLayers.size() - 1) {
             completeSeed(m1, newfts, thePropagatorOppositeToMomentum_, ilayer - 2);
           }
         }
       }
  
     }  // loop over layers
   }
 }