#include <L2MuonSeedGenerator.h>

Inheritance diagram for L2MuonSeedGenerator:

Public Member Functions
	L2MuonSeedGenerator (const edm::ParameterSet &)
	Constructor. More...

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

	~L2MuonSeedGenerator () override
	Destructor. More...

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

bool	hasAbilityToProduceInLumis () const final

bool	hasAbilityToProduceInRuns () const final

Private Member Functions
const TrajectorySeed *	associateOfflineSeedToL1 (edm::Handle< edm::View< TrajectorySeed > > &, std::vector< int > &, TrajectoryStateOnSurface &)

Private Attributes
edm::EDGetTokenT< L1MuGMTReadoutCollection >	gmtToken_

edm::EDGetTokenT< l1extra::L1MuonParticleCollection >	muCollToken_

edm::EDGetTokenT< edm::View< TrajectorySeed > >	offlineSeedToken_

MeasurementEstimator *	theEstimator

edm::InputTag	theL1GMTReadoutCollection

const double	theL1MaxEta

const double	theL1MinPt

const unsigned	theL1MinQuality

edm::InputTag	theOfflineSeedLabel

std::string	thePropagatorName

MuonServiceProxy *	theService
	the event setup proxy, it takes care the services update More...

edm::InputTag	theSource

const bool	useOfflineSeed

const bool	useUnassociatedL1

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

L2 muon seed generator: Transform the L1 informations in seeds for the L2 muon reconstruction

Author: A.Everett, R.Bellan, J. Alcaraz

ORCA's author: N. Neumeister

L2 muon seed generator: Transform the L1 informations in seeds for the L2 muon reconstruction

Author: A.Everett, R.Bellan

ORCA's author: N. Neumeister

Definition at line 50 of file L2MuonSeedGenerator.h.

Constructor & Destructor Documentation

L2MuonSeedGenerator::L2MuonSeedGenerator ( const edm::ParameterSet & iConfig )

explicit

Constructor.

Definition at line 44 of file L2MuonSeedGenerator.cc.

References Chi2MeasurementEstimator_cfi::Chi2MeasurementEstimator, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), gmtToken_, muCollToken_, MuonServiceProxy_cff::MuonServiceProxy, offlineSeedToken_, theEstimator, theL1GMTReadoutCollection, theOfflineSeedLabel, theService, theSource, and useOfflineSeed.

                                                                        : 
   theSource(iConfig.getParameter<InputTag>("InputObjects")),
   theL1GMTReadoutCollection(iConfig.getParameter<InputTag>("GMTReadoutCollection")),
   thePropagatorName(iConfig.getParameter<string>("Propagator")),
   theL1MinPt(iConfig.getParameter<double>("L1MinPt")),
   theL1MaxEta(iConfig.getParameter<double>("L1MaxEta")),
   theL1MinQuality(iConfig.getParameter<unsigned int>("L1MinQuality")),
   useOfflineSeed(iConfig.getUntrackedParameter<bool>("UseOfflineSeed", false)),
   useUnassociatedL1(iConfig.existsAs<bool>("UseUnassociatedL1") ? 
             iConfig.getParameter<bool>("UseUnassociatedL1") : true){
 
   gmtToken_ = consumes<L1MuGMTReadoutCollection>(theL1GMTReadoutCollection);
   muCollToken_ = consumes<L1MuonParticleCollection>(theSource);
 
   if(useOfflineSeed) {
     theOfflineSeedLabel = iConfig.getUntrackedParameter<InputTag>("OfflineSeedLabel");
     offlineSeedToken_ = consumes<edm::View<TrajectorySeed> >(theOfflineSeedLabel);
   }
   
   // service parameters
   ParameterSet serviceParameters = iConfig.getParameter<ParameterSet>("ServiceParameters");
   
   // the services
   theService = new MuonServiceProxy(serviceParameters);
 
   // the estimator
   theEstimator = new Chi2MeasurementEstimator(10000.);
 
 
   produces<L2MuonTrajectorySeedCollection>(); 
 }

L2MuonSeedGenerator::~L2MuonSeedGenerator ( )

override

Destructor.

Definition at line 77 of file L2MuonSeedGenerator.cc.

References theEstimator, and theService.

                                          {
   if (theService) delete theService;
   if (theEstimator) delete theEstimator;
 }

Member Function Documentation

const TrajectorySeed * L2MuonSeedGenerator::associateOfflineSeedToL1	(	edm::Handle< edm::View< TrajectorySeed > > &	offseeds,
		std::vector< int > &	offseedMap,
		TrajectoryStateOnSurface &	newTsos
	)

private

Definition at line 323 of file L2MuonSeedGenerator.cc.

References edm::View< T >::begin(), boostedElectronIsolation_cff::deltaR, MuonPatternRecoDumper::dumpMuonId(), PV3DBase< T, PVType, FrameType >::eta(), TrajectoryStateOnSurface::globalPosition(), LogDebug, PV3DBase< T, PVType, FrameType >::phi(), AlCaHLTBitMon_QueryRunRegistry::string, TrajectoryStateOnSurface::surface(), thePropagatorName, and theService.

Referenced by produce().

                                                                          {
 
   const std::string metlabel = "Muon|RecoMuon|L2MuonSeedGenerator";
   MuonPatternRecoDumper debugtmp;
 
   edm::View<TrajectorySeed>::const_iterator offseed, endOffseed = offseeds->end();
   const TrajectorySeed *selOffseed = nullptr;
   double bestDr = 99999.;
   unsigned int nOffseed(0);
   int lastOffseed(-1);
 
   for(offseed=offseeds->begin(); offseed!=endOffseed; ++offseed, ++nOffseed) {
     if(offseedMap[nOffseed]!=0) continue;
     GlobalPoint glbPos = theService->trackingGeometry()->idToDet(offseed->startingState().detId())->surface().toGlobal(offseed->startingState().parameters().position());
     GlobalVector glbMom = theService->trackingGeometry()->idToDet(offseed->startingState().detId())->surface().toGlobal(offseed->startingState().parameters().momentum());
 
     // Preliminary check
     double preDr = deltaR( newTsos.globalPosition().eta(), newTsos.globalPosition().phi(), glbPos.eta(), glbPos.phi() );
     if(preDr > 1.0) continue;
 
     const FreeTrajectoryState offseedFTS(glbPos, glbMom, offseed->startingState().parameters().charge(), &*theService->magneticField()); 
     TrajectoryStateOnSurface offseedTsos = theService->propagator(thePropagatorName)->propagate(offseedFTS, newTsos.surface());
     LogDebug(metlabel) << "Offline seed info: Det and State" << std::endl;
     LogDebug(metlabel) << debugtmp.dumpMuonId(offseed->startingState().detId()) << std::endl;
     //LogDebug(metlabel) << "(x, y, z) = (" << newTSOS.globalPosition().x() << ", " 
     //                   << newTSOS.globalPosition().y() << ", " << newTSOS.globalPosition().z() << ")" << std::endl;
     LogDebug(metlabel) << "pos: (r=" << offseedFTS.position().mag() << ", phi=" 
                << offseedFTS.position().phi() << ", eta=" << offseedFTS.position().eta() << ")" << std::endl;
     LogDebug(metlabel) << "mom: (q*pt=" << offseedFTS.charge()*offseedFTS.momentum().perp() << ", phi=" 
                << offseedFTS.momentum().phi() << ", eta=" << offseedFTS.momentum().eta() << ")" << std::endl << std::endl;
     //LogDebug(metlabel) << debugtmp.dumpFTS(offseedFTS) << std::endl;
 
     if(offseedTsos.isValid()) {
       LogDebug(metlabel) << "Offline seed info after propagation to L1 layer:" << std::endl;
       //LogDebug(metlabel) << "(x, y, z) = (" << offseedTsos.globalPosition().x() << ", " 
       //                   << offseedTsos.globalPosition().y() << ", " << offseedTsos.globalPosition().z() << ")" << std::endl;
       LogDebug(metlabel) << "pos: (r=" << offseedTsos.globalPosition().mag() << ", phi=" 
              << offseedTsos.globalPosition().phi() << ", eta=" << offseedTsos.globalPosition().eta() << ")" << std::endl;
       LogDebug(metlabel) << "mom: (q*pt=" << offseedTsos.charge()*offseedTsos.globalMomentum().perp() << ", phi=" 
              << offseedTsos.globalMomentum().phi() << ", eta=" << offseedTsos.globalMomentum().eta() << ")" << std::endl << std::endl;
       //LogDebug(metlabel) << debugtmp.dumpTSOS(offseedTsos) << std::endl;
       double newDr = deltaR( newTsos.globalPosition().eta(),     newTsos.globalPosition().phi(), 
                  offseedTsos.globalPosition().eta(), offseedTsos.globalPosition().phi() );
       LogDebug(metlabel) << "   -- DR = " << newDr << std::endl;
       if( newDr<0.3 && newDr<bestDr ) {
     LogDebug(metlabel) << "          --> OK! " << newDr << std::endl << std::endl;
     selOffseed = &*offseed;
     bestDr = newDr;
     offseedMap[nOffseed] = 1;
     if(lastOffseed>-1) offseedMap[lastOffseed] = 0;
     lastOffseed = nOffseed;
       }
       else {
     LogDebug(metlabel) << "          --> Rejected. " << newDr << std::endl << std::endl;
       }
     }
     else {
       LogDebug(metlabel) << "Invalid offline seed TSOS after propagation!" << std::endl << std::endl;
     }
   }
 
   return selOffseed;
 }

void L2MuonSeedGenerator::produce	(	edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)

override

Definition at line 82 of file L2MuonSeedGenerator.cc.

References alongMomentum, associateOfflineSeedToL1(), Reference_intrackfit_cff::barrel, ALCARECOTkAlJpsiMuMu_cff::charge, TrajectoryStateOnSurface::charge(), L1MuGMTCand::charge_valid(), GeometricSearchDet::compatibleDets(), funct::cos(), debug, MuonPatternRecoDumper::dumpFTS(), MuonPatternRecoDumper::dumpLayer(), MuonPatternRecoDumper::dumpMuonId(), L1MuGMTCand::empty(), relativeConstraints::error, PVValHelper::eta, PV3DBase< T, PVType, FrameType >::eta(), JetChargeProducer_cfi::exp, GeomDet::geographicalId(), L1MuGMTReadoutRecord::getBrlRPCCands(), edm::Event::getByToken(), L1MuGMTReadoutRecord::getCSCCands(), L1MuGMTReadoutRecord::getDTBXCands(), L1MuGMTExtendedCand::getDTCSCIndex(), L1MuGMTReadoutRecord::getFwdRPCCands(), L1MuGMTExtendedCand::getRPCIndex(), TrajectoryStateOnSurface::globalMomentum(), TrajectoryStateOnSurface::globalPosition(), gmtToken_, triggerObjects_cff::id, training_settings::idx, L1MuGMTExtendedCand::isFwd(), L1MuGMTExtendedCand::isRPC(), TrajectoryStateOnSurface::isValid(), LogDebug, LogTrace, PV3DBase< T, PVType, FrameType >::mag(), metname, eostools::move(), muCollToken_, offlineSeedToken_, convertSQLitetoXML_cfg::output, PV3DBase< T, PVType, FrameType >::perp(), trajectoryStateTransform::persistentState(), phi, PV3DBase< T, PVType, FrameType >::phi(), Geom::pi(), GeometricSearchDet::position(), EnergyCorrector::pt, edm::OwnVector< T, P >::push_back(), edm::Event::put(), jets_cff::quality, L1MuGMTCand::quality(), TCMET_cfi::radius, DetId::rawId(), TrajectorySeed::recHits(), funct::sin(), TrajectorySeed::startingState(), AlCaHLTBitMon_QueryRunRegistry::string, GeometricSearchDet::surface(), theEstimator, theL1MaxEta, theL1MinPt, theL1MinQuality, thePropagatorName, theService, theta(), useOfflineSeed, useUnassociatedL1, and PV3DBase< T, PVType, FrameType >::z().

 {
   const std::string metname = "Muon|RecoMuon|L2MuonSeedGenerator";
   MuonPatternRecoDumper debug;
 
   auto output = std::make_unique<L2MuonTrajectorySeedCollection>();
   
   // Muon particles and GMT readout collection
   edm::Handle<L1MuGMTReadoutCollection> gmtrc_handle;
   iEvent.getByToken(gmtToken_,gmtrc_handle);
   L1MuGMTReadoutRecord const& gmtrr = gmtrc_handle.product()->getRecord(0);
 
   edm::Handle<L1MuonParticleCollection> muColl;
   iEvent.getByToken(muCollToken_, muColl);
   LogTrace(metname) << "Number of muons " << muColl->size() << endl;
 
   edm::Handle<edm::View<TrajectorySeed> > offlineSeedHandle;
   vector<int> offlineSeedMap;
   if(useOfflineSeed) {
     iEvent.getByToken(offlineSeedToken_, offlineSeedHandle);
     LogTrace(metname) << "Number of offline seeds " << offlineSeedHandle->size() << endl;
     offlineSeedMap = vector<int>(offlineSeedHandle->size(), 0);
   }
 
   L1MuonParticleCollection::const_iterator it;
   L1MuonParticleRef::key_type l1ParticleIndex = 0;
 
   for(it = muColl->begin(); it != muColl->end(); ++it,++l1ParticleIndex) {
     
     const L1MuGMTExtendedCand muonCand = (*it).gmtMuonCand();
     unsigned int quality = 0;
     bool valid_charge = false;;
 
     if ( muonCand.empty() ) {
       LogWarning(metname) << "L2MuonSeedGenerator: WARNING, no L1MuGMTCand! " << endl;
       LogWarning(metname) << "L2MuonSeedGenerator:   this should make sense only within MC tests" << endl;
       // FIXME! Temporary to handle the MC input
       quality = 7;
       valid_charge = true;
     }
     else {
       quality =  muonCand.quality();
       valid_charge = muonCand.charge_valid();
     }
     
     float pt    =  (*it).pt();
     float eta   =  (*it).eta();
     float theta =  2*atan(exp(-eta));
     float phi   =  (*it).phi();      
     int charge  =  (*it).charge();
     // Set charge=0 for the time being if the valid charge bit is zero
     if (!valid_charge) charge = 0;
     bool barrel = !(*it).isForward();
 
     // Get a better eta and charge from regional information
     // Phi has the same resolution in GMT than regionally, is not it?
     if ( !(muonCand.empty()) ) {
       int idx = -1;
       vector<L1MuRegionalCand> rmc;
       if ( !muonCand.isRPC() ) {
             idx = muonCand.getDTCSCIndex();
             if (muonCand.isFwd()) rmc = gmtrr.getCSCCands();
             else rmc = gmtrr.getDTBXCands();
       } else {
             idx = muonCand.getRPCIndex();
             if (muonCand.isFwd()) rmc = gmtrr.getFwdRPCCands();
             else rmc = gmtrr.getBrlRPCCands();
       }
       if (idx>=0) {
             eta = rmc[idx].etaValue();
             //phi = rmc[idx].phiValue();
             // Use this charge if the valid charge bit is zero
             if (!valid_charge) charge = rmc[idx].chargeValue();
       }
     }
 
     if ( pt < theL1MinPt || fabs(eta) > theL1MaxEta ) continue;
     
     LogTrace(metname) << "New L2 Muon Seed";
     LogTrace(metname) << "Pt = " << pt << " GeV/c";
     LogTrace(metname) << "eta = " << eta;
     LogTrace(metname) << "theta = " << theta << " rad";
     LogTrace(metname) << "phi = " << phi << " rad";
     LogTrace(metname) << "charge = "<< charge;
     LogTrace(metname) << "In Barrel? = "<< barrel;
     
     if ( quality <= theL1MinQuality ) continue;
     LogTrace(metname) << "quality = "<< quality; 
     
     // Update the services
     theService->update(iSetup);
 
     const DetLayer *detLayer = nullptr;
     float radius = 0.;
   
     CLHEP::Hep3Vector vec(0.,1.,0.);
     vec.setTheta(theta);
     vec.setPhi(phi);
     
     // Get the det layer on which the state should be put
     if ( barrel ){
       LogTrace(metname) << "The seed is in the barrel";
       
       // MB2
       DetId id = DTChamberId(0,2,0);
       detLayer = theService->detLayerGeometry()->idToLayer(id);
       LogTrace(metname) << "L2 Layer: " << debug.dumpLayer(detLayer);
       
       const BoundSurface* sur = &(detLayer->surface());
       const BoundCylinder* bc = dynamic_cast<const BoundCylinder*>(sur);
 
       radius = fabs(bc->radius()/sin(theta));
 
       LogTrace(metname) << "radius "<<radius;
 
       if ( pt < 3.5 ) pt = 3.5;
     }
     else { 
       LogTrace(metname) << "The seed is in the endcap";
       
       DetId id;
       // ME2
       if ( theta < Geom::pi()/2. )
     id = CSCDetId(1,2,0,0,0); 
       else
     id = CSCDetId(2,2,0,0,0); 
       
       detLayer = theService->detLayerGeometry()->idToLayer(id);
       LogTrace(metname) << "L2 Layer: " << debug.dumpLayer(detLayer);
 
       radius = fabs(detLayer->position().z()/cos(theta));      
       
       if( pt < 1.0) pt = 1.0;
     }
         
     vec.setMag(radius);
     
     GlobalPoint pos(vec.x(),vec.y(),vec.z());
       
     GlobalVector mom(pt*cos(phi), pt*sin(phi), pt*cos(theta)/sin(theta));
 
     GlobalTrajectoryParameters param(pos,mom,charge,&*theService->magneticField());
     AlgebraicSymMatrix55 mat;
     
     mat[0][0] = (0.25/pt)*(0.25/pt);  // sigma^2(charge/abs_momentum)
     if ( !barrel ) mat[0][0] = (0.4/pt)*(0.4/pt);
 
     //Assign q/pt = 0 +- 1/pt if charge has been declared invalid
     if (!valid_charge) mat[0][0] = (1./pt)*(1./pt);
     
     mat[1][1] = 0.05*0.05;        // sigma^2(lambda)
     mat[2][2] = 0.2*0.2;          // sigma^2(phi)
     mat[3][3] = 20.*20.;          // sigma^2(x_transverse))
     mat[4][4] = 20.*20.;          // sigma^2(y_transverse))
     
     CurvilinearTrajectoryError error(mat);
 
     const FreeTrajectoryState state(param,error);
    
     LogTrace(metname) << "Free trajectory State from the parameters";
     LogTrace(metname) << debug.dumpFTS(state);
 
     // Propagate the state on the MB2/ME2 surface
     TrajectoryStateOnSurface tsos = theService->propagator(thePropagatorName)->propagate(state, detLayer->surface());
    
     LogTrace(metname) << "State after the propagation on the layer";
     LogTrace(metname) << debug.dumpLayer(detLayer);
     LogTrace(metname) << debug.dumpFTS(state);
 
     if (tsos.isValid()) {
       // Get the compatible dets on the layer
       std::vector< pair<const GeomDet*,TrajectoryStateOnSurface> > 
     detsWithStates = detLayer->compatibleDets(tsos, 
                           *theService->propagator(thePropagatorName), 
                           *theEstimator);   
       if (!detsWithStates.empty()){
 
     TrajectoryStateOnSurface newTSOS = detsWithStates.front().second;
     const GeomDet *newTSOSDet = detsWithStates.front().first;
     
     LogTrace(metname) << "Most compatible det";
     LogTrace(metname) << debug.dumpMuonId(newTSOSDet->geographicalId());
 
     LogDebug(metname) << "L1 info: Det and State:";
     LogDebug(metname) << debug.dumpMuonId(newTSOSDet->geographicalId());
 
     if (newTSOS.isValid()){
 
       //LogDebug(metname) << "(x, y, z) = (" << newTSOS.globalPosition().x() << ", " 
       //                  << newTSOS.globalPosition().y() << ", " << newTSOS.globalPosition().z() << ")";
       LogDebug(metname) << "pos: (r=" << newTSOS.globalPosition().mag() << ", phi=" 
                 << newTSOS.globalPosition().phi() << ", eta=" << newTSOS.globalPosition().eta() << ")";
       LogDebug(metname) << "mom: (q*pt=" << newTSOS.charge()*newTSOS.globalMomentum().perp() << ", phi=" 
                 << newTSOS.globalMomentum().phi() << ", eta=" << newTSOS.globalMomentum().eta() << ")";
 
       //LogDebug(metname) << "State on it";
       //LogDebug(metname) << debug.dumpTSOS(newTSOS);
 
       //PTrajectoryStateOnDet seedTSOS;
       edm::OwnVector<TrackingRecHit> container;
 
       if(useOfflineSeed) {
         const TrajectorySeed *assoOffseed = 
           associateOfflineSeedToL1(offlineSeedHandle, offlineSeedMap, newTSOS);
 
         if(assoOffseed!=nullptr) {
           PTrajectoryStateOnDet const & seedTSOS = assoOffseed->startingState();
           TrajectorySeed::const_iterator 
         tsci  = assoOffseed->recHits().first,
         tscie = assoOffseed->recHits().second;
           for(; tsci!=tscie; ++tsci) {
         container.push_back(*tsci);
           }
           output->push_back(L2MuonTrajectorySeed(seedTSOS,container,alongMomentum,
                              L1MuonParticleRef(muColl,l1ParticleIndex)));
         }
         else {
           if(useUnassociatedL1) {
         // convert the TSOS into a PTSOD
         PTrajectoryStateOnDet const & seedTSOS = trajectoryStateTransform::persistentState( newTSOS,newTSOSDet->geographicalId().rawId());
         output->push_back(L2MuonTrajectorySeed(seedTSOS,container,alongMomentum,
                                L1MuonParticleRef(muColl,l1ParticleIndex)));
           }
         }
       }
       else {
         // convert the TSOS into a PTSOD
         PTrajectoryStateOnDet const & seedTSOS = trajectoryStateTransform::persistentState( newTSOS,newTSOSDet->geographicalId().rawId());
         output->push_back(L2MuonTrajectorySeed(seedTSOS,container,alongMomentum,
                            L1MuonParticleRef(muColl,l1ParticleIndex)));
       }
     }
       }
     }
   }
   
   iEvent.put(std::move(output));
 }