#include <IsolatedPixelTrackCandidateL1TProducer.h>

Inheritance diagram for IsolatedPixelTrackCandidateL1TProducer:

Classes
struct	seedAtEC

Public Member Functions
void	beginRun (const edm::Run &, const edm::EventSetup &) override

double	getDistInCM (double eta1, double phi1, double eta2, double phi2)

std::pair< double, double >	GetEtaPhiAtEcal (double etaIP, double phiIP, double pT, int charge, double vtxZ)

	IsolatedPixelTrackCandidateL1TProducer (const edm::ParameterSet &ps)

void	produce (edm::Event &evt, const edm::EventSetup &es) override

	~IsolatedPixelTrackCandidateL1TProducer () override

Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default

bool	hasAbilityToProduceInBeginLumis () const final

bool	hasAbilityToProduceInBeginProcessBlocks () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndProcessBlocks () const final

bool	hasAbilityToProduceInEndRuns () const final

Static Public Member Functions
static void	fillDescriptions (edm::ConfigurationDescriptions &descriptions)

Private Attributes
const std::string	bfield_

double	bfVal_

const double	ebEtaBoundary_

const double	maxPForIsolationValue_

const double	minPTrackValue_

const double	pixelIsolationConeSizeAtEC_

const double	prelimCone_

double	rEB_

const double	tauAssocCone_

const double	tauUnbiasCone_

const edm::EDGetTokenT< trigger::TriggerFilterObjectWithRefs >	tok_hlt_

const edm::EDGetTokenT< l1t::TauBxCollection >	tok_l1_

const edm::EDGetTokenT< reco::VertexCollection >	tok_vert_

const std::vector< edm::EDGetTokenT< reco::TrackCollection > >	toks_pix_

const double	vtxCutIsol_

const double	vtxCutSeed_

double	zEE_

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
typedef CacheContexts< T... >	CacheTypes

typedef CacheTypes::GlobalCache	GlobalCache

typedef AbilityChecker< T... >	HasAbility

typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache

typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext

typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache

typedef CacheTypes::RunCache	RunCache

typedef RunContextT< RunCache, GlobalCache >	RunContext

typedef CacheTypes::RunSummaryCache	RunSummaryCache

Detailed Description

Definition at line 45 of file IsolatedPixelTrackCandidateL1TProducer.h.

Constructor & Destructor Documentation

◆ IsolatedPixelTrackCandidateL1TProducer()

IsolatedPixelTrackCandidateL1TProducer::IsolatedPixelTrackCandidateL1TProducer ( const edm::ParameterSet & ps )

Definition at line 35 of file IsolatedPixelTrackCandidateL1TProducer.cc.

     : tok_hlt_(consumes<trigger::TriggerFilterObjectWithRefs>(config.getParameter<edm::InputTag>("L1GTSeedLabel"))),
       tok_l1_(consumes<l1t::TauBxCollection>(config.getParameter<edm::InputTag>("L1eTauJetsSource"))),
       tok_vert_(consumes<reco::VertexCollection>(config.getParameter<edm::InputTag>("VertexLabel"))),
       toks_pix_(
           edm::vector_transform(config.getParameter<std::vector<edm::InputTag> >("PixelTracksSources"),
                                 [this](edm::InputTag const& tag) { return consumes<reco::TrackCollection>(tag); })),
       bfield_(config.getParameter<std::string>("MagFieldRecordName")),
       prelimCone_(config.getParameter<double>("ExtrapolationConeSize")),
       pixelIsolationConeSizeAtEC_(config.getParameter<double>("PixelIsolationConeSizeAtEC")),
       vtxCutSeed_(config.getParameter<double>("MaxVtxDXYSeed")),
       vtxCutIsol_(config.getParameter<double>("MaxVtxDXYIsol")),
       tauAssocCone_(config.getParameter<double>("tauAssociationCone")),
       tauUnbiasCone_(config.getParameter<double>("tauUnbiasCone")),
       minPTrackValue_(config.getParameter<double>("minPTrack")),
       maxPForIsolationValue_(config.getParameter<double>("maxPTrackForIsolation")),
       ebEtaBoundary_(config.getParameter<double>("EBEtaBoundary")),
       rEB_(-1),
       zEE_(-1),
       bfVal_(0) {
   // Register the product
   produces<reco::IsolatedPixelTrackCandidateCollection>();
 }

References GlobalPosition_Frontier_DevDB_cff::tag.

◆ ~IsolatedPixelTrackCandidateL1TProducer()

IsolatedPixelTrackCandidateL1TProducer::~IsolatedPixelTrackCandidateL1TProducer ( )

override

Definition at line 59 of file IsolatedPixelTrackCandidateL1TProducer.cc.

59 {}

Member Function Documentation

◆ beginRun()

void IsolatedPixelTrackCandidateL1TProducer::beginRun	(	const edm::Run &	run,
		const edm::EventSetup &	theEventSetup
	)

override

Definition at line 81 of file IsolatedPixelTrackCandidateL1TProducer.cc.

                                                                                                            {
   edm::ESHandle<CaloGeometry> pG;
   theEventSetup.get<CaloGeometryRecord>().get(pG);
  
   const double rad(dynamic_cast<const EcalBarrelGeometry*>(pG->getSubdetectorGeometry(DetId::Ecal, EcalBarrel))
                        ->avgRadiusXYFrontFaceCenter());
   const double zz(dynamic_cast<const EcalEndcapGeometry*>(pG->getSubdetectorGeometry(DetId::Ecal, EcalEndcap))
                       ->avgAbsZFrontFaceCenter());
  
   rEB_ = rad;
   zEE_ = zz;
  
   edm::ESHandle<MagneticField> vbfField;
   theEventSetup.get<IdealMagneticFieldRecord>().get(vbfField);
   const VolumeBasedMagneticField* vbfCPtr = dynamic_cast<const VolumeBasedMagneticField*>(&(*vbfField));
   GlobalVector BField = vbfCPtr->inTesla(GlobalPoint(0, 0, 0));
   bfVal_ = BField.mag();
   LogTrace("IsoTrack") << "rEB " << rEB_ << " zEE " << zEE_ << " B " << bfVal_ << std::endl;
 }

References ProducerES_cfi::BField, bfVal_, DetId::Ecal, EcalBarrel, EcalEndcap, edm::EventSetup::get(), get, CaloGeometry::getSubdetectorGeometry(), VolumeBasedMagneticField::inTesla(), LogTrace, rEB_, zEE_, and geometryCSVtoXML::zz.

◆ fillDescriptions()

void IsolatedPixelTrackCandidateL1TProducer::fillDescriptions ( edm::ConfigurationDescriptions & descriptions )

static

Definition at line 61 of file IsolatedPixelTrackCandidateL1TProducer.cc.

                                                                                                         {
   edm::ParameterSetDescription desc;
   std::vector<edm::InputTag> tracksrc = {edm::InputTag("hltPixelTracks")};
   desc.add<edm::InputTag>("L1eTauJetsSource", edm::InputTag("hltGtStage2Digis", "Tau"));
   desc.add<double>("tauAssociationCone", 0.0);
   desc.add<double>("tauUnbiasCone", 1.2);
   desc.add<std::vector<edm::InputTag> >("PixelTracksSources", tracksrc);
   desc.add<double>("ExtrapolationConeSize", 1.0);
   desc.add<double>("PixelIsolationConeSizeAtEC", 40);
   desc.add<edm::InputTag>("L1GTSeedLabel", edm::InputTag("hltL1sV0SingleJet60"));
   desc.add<double>("MaxVtxDXYSeed", 101.0);
   desc.add<double>("MaxVtxDXYIsol", 101.0);
   desc.add<edm::InputTag>("VertexLabel", edm::InputTag("hltTrimmedPixelVertices"));
   desc.add<std::string>("MagFieldRecordName", "VolumeBasedMagneticField");
   desc.add<double>("minPTrack", 5.0);
   desc.add<double>("maxPTrackForIsolation", 3.0);
   desc.add<double>("EBEtaBoundary", 1.479);
   descriptions.add("isolPixelTrackProdL1T", desc);
 }

References edm::ConfigurationDescriptions::add(), submitPVResolutionJobs::desc, HLT_FULL_cff::InputTag, AlCaHLTBitMon_QueryRunRegistry::string, and SiPixelMonitorTrack_cfi::tracksrc.

◆ getDistInCM()

double IsolatedPixelTrackCandidateL1TProducer::getDistInCM	(	double	eta1,
		double	phi1,
		double	eta2,
		double	phi2
	)

Definition at line 281 of file IsolatedPixelTrackCandidateL1TProducer.cc.

                                                                                                              {
   double Rec;
   double theta1 = 2 * atan(exp(-eta1));
   double theta2 = 2 * atan(exp(-eta2));
   if (std::abs(eta1) < 1.479)
     Rec = rEB_;  //radius of ECAL barrel
   else if (std::abs(eta1) > 1.479 && std::abs(eta1) < 7.0)
     Rec = tan(theta1) * zEE_;  //distance from IP to ECAL endcap
   else
     return 1000;
  
   //|vect| times tg of acos(scalar product)
   double angle =
       acos((sin(theta1) * sin(theta2) * (sin(phi1) * sin(phi2) + cos(phi1) * cos(phi2)) + cos(theta1) * cos(theta2)));
   if (angle < M_PI_2)
     return std::abs((Rec / sin(theta1)) * tan(angle));
   else
     return 1000;
 }

References funct::abs(), angle(), funct::cos(), HLT_FULL_cff::eta1, HLT_FULL_cff::eta2, JetChargeProducer_cfi::exp, M_PI_2, rEB_, funct::sin(), funct::tan(), and zEE_.

Referenced by produce().

◆ GetEtaPhiAtEcal()

std::pair< double, double > IsolatedPixelTrackCandidateL1TProducer::GetEtaPhiAtEcal	(	double	etaIP,
		double	phiIP,
		double	pT,
		int	charge,
		double	vtxZ
	)

Definition at line 301 of file IsolatedPixelTrackCandidateL1TProducer.cc.

                                                                     {
   double deltaPhi = 0;
   double etaEC = 100;
   double phiEC = 100;
  
   double Rcurv = 9999999;
   if (bfVal_ != 0)
     Rcurv = pT * 33.3 * 100 / (bfVal_ * 10);  //r(m)=pT(GeV)*33.3/B(kG)
  
   double ecDist = zEE_;  //distance to ECAL andcap from IP (cm), 317 - ecal (not preshower), preshower -300
   double ecRad = rEB_;   //radius of ECAL barrel (cm)
   double theta = 2 * atan(exp(-etaIP));
   double zNew = 0;
   if (theta > M_PI_2)
     theta = M_PI - theta;
   if (std::abs(etaIP) < ebEtaBoundary_) {
     if ((0.5 * ecRad / Rcurv) > 1) {
       etaEC = 10000;
       deltaPhi = 0;
     } else {
       deltaPhi = -charge * asin(0.5 * ecRad / Rcurv);
       double alpha1 = 2 * asin(0.5 * ecRad / Rcurv);
       double z = ecRad / tan(theta);
       if (etaIP > 0)
         zNew = z * (Rcurv * alpha1) / ecRad + vtxZ;  //new z-coordinate of track
       else
         zNew = -z * (Rcurv * alpha1) / ecRad + vtxZ;  //new z-coordinate of track
       double zAbs = std::abs(zNew);
       if (zAbs < ecDist) {
         etaEC = -log(tan(0.5 * atan(ecRad / zAbs)));
         deltaPhi = -charge * asin(0.5 * ecRad / Rcurv);
       }
       if (zAbs > ecDist) {
         zAbs = (std::abs(etaIP) / etaIP) * ecDist;
         double Zflight = std::abs(zAbs - vtxZ);
         double alpha = (Zflight * ecRad) / (z * Rcurv);
         double Rec = 2 * Rcurv * sin(alpha / 2);
         deltaPhi = -charge * alpha / 2;
         etaEC = -log(tan(0.5 * atan(Rec / ecDist)));
       }
     }
   } else {
     zNew = (std::abs(etaIP) / etaIP) * ecDist;
     double Zflight = std::abs(zNew - vtxZ);
     double Rvirt = std::abs(Zflight * tan(theta));
     double Rec = 2 * Rcurv * sin(Rvirt / (2 * Rcurv));
     deltaPhi = -(charge) * (Rvirt / (2 * Rcurv));
     etaEC = -log(tan(0.5 * atan(Rec / ecDist)));
   }
  
   if (zNew < 0)
     etaEC = -etaEC;
   phiEC = phiIP + deltaPhi;
  
   if (phiEC < -M_PI)
     phiEC += M_2_PI;
   if (phiEC > M_PI)
     phiEC -= M_2_PI;
  
   std::pair<double, double> retVal(etaEC, phiEC);
   return retVal;
 }

References funct::abs(), zMuMuMuonUserData::alpha, bfVal_, ALCARECOTkAlJpsiMuMu_cff::charge, SiPixelRawToDigiRegional_cfi::deltaPhi, ebEtaBoundary_, JetChargeProducer_cfi::exp, dqm-mbProfile::log, M_PI, M_PI_2, PVValHelper::pT, rEB_, funct::sin(), funct::tan(), theta(), z, and zEE_.

Referenced by produce().

◆ produce()

void IsolatedPixelTrackCandidateL1TProducer::produce	(	edm::Event &	evt,
		const edm::EventSetup &	es
	)

override

Definition at line 101 of file IsolatedPixelTrackCandidateL1TProducer.cc.

                                                                                                            {
   auto trackCollection = std::make_unique<reco::IsolatedPixelTrackCandidateCollection>();
  
   //create vector of refs from input collections
   std::vector<reco::TrackRef> pixelTrackRefs;
  
   for (unsigned int iPix = 0; iPix < toks_pix_.size(); iPix++) {
     edm::Handle<reco::TrackCollection> iPixCol;
     theEvent.getByToken(toks_pix_[iPix], iPixCol);
     for (reco::TrackCollection::const_iterator pit = iPixCol->begin(); pit != iPixCol->end(); pit++) {
       pixelTrackRefs.push_back(reco::TrackRef(iPixCol, pit - iPixCol->begin()));
     }
   }
  
   edm::Handle<l1t::TauBxCollection> l1eTauJets;
   theEvent.getByToken(tok_l1_, l1eTauJets);
  
   edm::Handle<reco::VertexCollection> pVert;
   theEvent.getByToken(tok_vert_, pVert);
  
   double ptTriggered = -10;
   double etaTriggered = -100;
   double phiTriggered = -100;
  
   edm::Handle<trigger::TriggerFilterObjectWithRefs> l1trigobj;
   theEvent.getByToken(tok_hlt_, l1trigobj);
  
   std::vector<edm::Ref<l1t::TauBxCollection> > l1tauobjref;
   std::vector<edm::Ref<l1t::JetBxCollection> > l1jetobjref;
  
   //  l1trigobj->getObjects(trigger::TriggerTau, l1tauobjref);
   l1trigobj->getObjects(trigger::TriggerL1Tau, l1tauobjref);
   //  l1trigobj->getObjects(trigger::TriggerJet, l1jetobjref);
   l1trigobj->getObjects(trigger::TriggerL1Jet, l1jetobjref);
  
   for (const auto& p : l1tauobjref) {
     if (p->pt() > ptTriggered) {
       ptTriggered = p->pt();
       phiTriggered = p->phi();
       etaTriggered = p->eta();
     }
   }
   for (const auto& p : l1jetobjref) {
     if (p->pt() > ptTriggered) {
       ptTriggered = p->pt();
       phiTriggered = p->phi();
       etaTriggered = p->eta();
     }
   }
   LogTrace("IsoTrack") << "Sizes " << l1tauobjref.size() << ":" << l1jetobjref.size() << " Trig " << ptTriggered << ":"
                        << etaTriggered << ":" << phiTriggered << std::endl;
  
   double drMaxL1Track_ = tauAssocCone_;
   int ntr = 0;
   std::vector<seedAtEC> VecSeedsatEC;
   //loop to select isolated tracks
   for (unsigned iS = 0; iS < pixelTrackRefs.size(); iS++) {
     bool vtxMatch = false;
     //associate to vertex (in Z)
     reco::VertexCollection::const_iterator vitSel;
     double minDZ = 1000;
     bool found(false);
     for (reco::VertexCollection::const_iterator vit = pVert->begin(); vit != pVert->end(); vit++) {
       if (std::abs(pixelTrackRefs[iS]->dz(vit->position())) < minDZ) {
         minDZ = std::abs(pixelTrackRefs[iS]->dz(vit->position()));
         vitSel = vit;
         found = true;
       }
     }
     //cut on dYX:
     if (found) {
       if (std::abs(pixelTrackRefs[iS]->dxy(vitSel->position())) < vtxCutSeed_)
         vtxMatch = true;
     } else {
       vtxMatch = true;
     }
     LogTrace("IsoTrack") << "minZD " << minDZ << " Found " << found << ":" << vtxMatch << std::endl;
  
     //select tracks not matched to triggered L1 jet
     double R = reco::deltaR(etaTriggered, phiTriggered, pixelTrackRefs[iS]->eta(), pixelTrackRefs[iS]->phi());
     LogTrace("IsoTrack") << "Distance to L1 " << R << ":" << tauUnbiasCone_ << " Result " << (R < tauUnbiasCone_)
                          << std::endl;
     if (R < tauUnbiasCone_)
       continue;
  
     //check taujet matching
     bool tmatch = false;
     l1t::TauBxCollection::const_iterator selj;
     for (l1t::TauBxCollection::const_iterator tj = l1eTauJets->begin(); tj != l1eTauJets->end(); tj++) {
       if (reco::deltaR(pixelTrackRefs[iS]->momentum().eta(),
                        pixelTrackRefs[iS]->momentum().phi(),
                        tj->momentum().eta(),
                        tj->momentum().phi()) > drMaxL1Track_)
         continue;
       selj = tj;
       tmatch = true;
     }  //loop over L1 tau
     LogTrace("IsoTrack") << "tMatch " << tmatch << std::endl;
  
     //propagate seed track to ECAL surface:
     std::pair<double, double> seedCooAtEC;
     // in case vertex is found:
     if (found)
       seedCooAtEC = GetEtaPhiAtEcal(pixelTrackRefs[iS]->eta(),
                                     pixelTrackRefs[iS]->phi(),
                                     pixelTrackRefs[iS]->pt(),
                                     pixelTrackRefs[iS]->charge(),
                                     vitSel->z());
     //in case vertex is not found:
     else
       seedCooAtEC = GetEtaPhiAtEcal(pixelTrackRefs[iS]->eta(),
                                     pixelTrackRefs[iS]->phi(),
                                     pixelTrackRefs[iS]->pt(),
                                     pixelTrackRefs[iS]->charge(),
                                     0);
     seedAtEC seed(iS, (tmatch || vtxMatch), seedCooAtEC.first, seedCooAtEC.second);
     VecSeedsatEC.push_back(seed);
     LogTrace("IsoTrack") << "Seed " << seedCooAtEC.first << seedCooAtEC.second << std::endl;
   }
   for (unsigned int i = 0; i < VecSeedsatEC.size(); i++) {
     unsigned int iSeed = VecSeedsatEC[i].index;
     if (!VecSeedsatEC[i].ok)
       continue;
     if (pixelTrackRefs[iSeed]->p() < minPTrackValue_)
       continue;
     l1t::TauBxCollection::const_iterator selj;
     for (l1t::TauBxCollection::const_iterator tj = l1eTauJets->begin(); tj != l1eTauJets->end(); tj++) {
       if (reco::deltaR(pixelTrackRefs[iSeed]->momentum().eta(),
                        pixelTrackRefs[iSeed]->momentum().phi(),
                        tj->momentum().eta(),
                        tj->momentum().phi()) > drMaxL1Track_)
         continue;
       selj = tj;
     }  //loop over L1 tau
     double maxP = 0;
     double sumP = 0;
     for (unsigned int j = 0; j < VecSeedsatEC.size(); j++) {
       if (i == j)
         continue;
       unsigned int iSurr = VecSeedsatEC[j].index;
       //define preliminary cone around seed track impact point from which tracks will be extrapolated:
       if (reco::deltaR(pixelTrackRefs[iSeed]->eta(),
                        pixelTrackRefs[iSeed]->phi(),
                        pixelTrackRefs[iSurr]->eta(),
                        pixelTrackRefs[iSurr]->phi()) > prelimCone_)
         continue;
       double minDZ2(1000);
       bool found(false);
       reco::VertexCollection::const_iterator vitSel2;
       for (reco::VertexCollection::const_iterator vit = pVert->begin(); vit != pVert->end(); vit++) {
         if (std::abs(pixelTrackRefs[iSurr]->dz(vit->position())) < minDZ2) {
           minDZ2 = std::abs(pixelTrackRefs[iSurr]->dz(vit->position()));
           vitSel2 = vit;
           found = true;
         }
       }
       //cut ot dXY:
       if (found && std::abs(pixelTrackRefs[iSurr]->dxy(vitSel2->position())) > vtxCutIsol_)
         continue;
       //calculate distance at ECAL surface and update isolation:
       if (getDistInCM(VecSeedsatEC[i].eta, VecSeedsatEC[i].phi, VecSeedsatEC[j].eta, VecSeedsatEC[j].phi) <
           pixelIsolationConeSizeAtEC_) {
         sumP += pixelTrackRefs[iSurr]->p();
         if (pixelTrackRefs[iSurr]->p() > maxP)
           maxP = pixelTrackRefs[iSurr]->p();
       }
     }
     if (maxP < maxPForIsolationValue_) {
       reco::IsolatedPixelTrackCandidate newCandidate(
           pixelTrackRefs[iSeed], l1t::TauRef(l1eTauJets, selj - l1eTauJets->begin()), maxP, sumP);
       newCandidate.setEtaPhiEcal(VecSeedsatEC[i].eta, VecSeedsatEC[i].phi);
       trackCollection->push_back(newCandidate);
       ntr++;
     }
   }
   LogTrace("IsoTrack") << "Number of Isolated Track " << ntr << "\n";
   // put the product in the event
   theEvent.put(std::move(trackCollection));
 }