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/data/refman/pasoursint/CMSSW_5_3_10_patch2/src/RecoTracker/SpecialSeedGenerators/src/CosmicRegionalSeedGenerator.cc

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00001 #include <iostream>
00002 #include <memory>
00003 #include <string>
00004 
00005 
00006 #include "TrackingTools/GeomPropagators/interface/Propagator.h"
00007 
00008 
00009 #include "DataFormats/MuonReco/interface/Muon.h"
00010 #include "DataFormats/MuonReco/interface/MuonFwd.h"
00011 
00012 #include "DataFormats/JetReco/interface/CaloJet.h"
00013 #include "DataFormats/JetReco/interface/CaloJetCollection.h"
00014 
00015 
00016 #include "DataFormats/RecoCandidate/interface/RecoChargedCandidate.h"
00017 #include "DataFormats/RecoCandidate/interface/RecoChargedCandidateFwd.h"
00018 
00019 #include "RecoTracker/SpecialSeedGenerators/interface/CosmicRegionalSeedGenerator.h"
00020 
00021 #include <TMath.h>
00022 
00023 using namespace std;
00024 using namespace trigger;
00025 using namespace reco;
00026 using namespace edm;
00027 
00028 CosmicRegionalSeedGenerator::CosmicRegionalSeedGenerator(edm::ParameterSet const& conf) : 
00029   conf_(conf)
00030 {
00031   edm::LogInfo ("CosmicRegionalSeedGenerator") << "Begin Run:: Constructing  CosmicRegionalSeedGenerator";
00032 
00033   regionPSet = conf_.getParameter<edm::ParameterSet>("RegionPSet");
00034   ptMin_        = regionPSet.getParameter<double>("ptMin");
00035   rVertex_      = regionPSet.getParameter<double>("rVertex");
00036   zVertex_      = regionPSet.getParameter<double>("zVertex");
00037   deltaEta_     = regionPSet.getParameter<double>("deltaEtaRegion");
00038   deltaPhi_     = regionPSet.getParameter<double>("deltaPhiRegion");
00039   
00040   edm::ParameterSet toolsPSet  = conf_.getParameter<edm::ParameterSet>("ToolsPSet");
00041   thePropagatorName_           = toolsPSet.getParameter<std::string>("thePropagatorName");
00042   regionBase_                  = toolsPSet.getParameter<std::string>("regionBase");
00043 
00044   edm::ParameterSet collectionsPSet = conf_.getParameter<edm::ParameterSet>("CollectionsPSet");
00045   recoMuonsCollection_          = collectionsPSet.getParameter<edm::InputTag>("recoMuonsCollection");
00046   recoTrackMuonsCollection_     = collectionsPSet.getParameter<edm::InputTag>("recoTrackMuonsCollection");
00047   recoL2MuonsCollection_        = collectionsPSet.getParameter<edm::InputTag>("recoL2MuonsCollection");
00048 
00049   edm::ParameterSet regionInJetsCheckPSet = conf_.getParameter<edm::ParameterSet>("RegionInJetsCheckPSet");
00050   doJetsExclusionCheck_         = regionInJetsCheckPSet.getParameter<bool>("doJetsExclusionCheck");
00051   deltaRExclusionSize_          = regionInJetsCheckPSet.getParameter<double>("deltaRExclusionSize");
00052   jetsPtMin_                    = regionInJetsCheckPSet.getParameter<double>("jetsPtMin");
00053   recoCaloJetsCollection_       = regionInJetsCheckPSet.getParameter<edm::InputTag>("recoCaloJetsCollection");
00054 
00055 
00056   edm::LogInfo ("CosmicRegionalSeedGenerator") << "Reco muons collection: "        << recoMuonsCollection_ << "\n"
00057                                                << "Reco tracks muons collection: " << recoTrackMuonsCollection_<< "\n"
00058                                                << "Reco L2 muons collection: "     << recoL2MuonsCollection_;
00059 }
00060    
00061 std::vector<TrackingRegion*, std::allocator<TrackingRegion*> > CosmicRegionalSeedGenerator::regions(const edm::Event& event, const edm::EventSetup& es) const
00062 {
00063 
00064   std::vector<TrackingRegion* > result;
00065 
00066 
00067   //________________________________________
00068   //
00069   //Seeding on Sta muon (MC && Datas)
00070   //________________________________________
00071 
00072 
00073   if(regionBase_=="seedOnStaMuon"||regionBase_=="") {
00074 
00075     LogDebug("CosmicRegionalSeedGenerator") << "Seeding on stand alone muons ";
00076 
00077     //get collections
00078     //+++++++++++++++
00079 
00080     //get the muon collection
00081     edm::Handle<reco::MuonCollection> muonsHandle;
00082     event.getByLabel(recoMuonsCollection_,muonsHandle);
00083     if (!muonsHandle.isValid())
00084       {
00085         edm::LogError("CollectionNotFound") << "Error::No reco muons collection (" << recoMuonsCollection_ << ") in the event - Please verify the name of the muon collection";
00086         return result;
00087       }
00088 
00089     LogDebug("CosmicRegionalSeedGenerator") << "Muons collection size = " << muonsHandle->size();
00090 
00091     //get the jet collection
00092     edm::Handle<CaloJetCollection> caloJetsHandle;
00093     event.getByLabel(recoCaloJetsCollection_,caloJetsHandle);
00094 
00095     //get the propagator 
00096     edm::ESHandle<Propagator> thePropagator;
00097     es.get<TrackingComponentsRecord>().get(thePropagatorName_, thePropagator); // thePropagatorName = "AnalyticalPropagator"
00098 
00099     //get tracker geometry
00100     edm::ESHandle<TrackerGeometry> theTrackerGeometry;
00101     es.get<TrackerDigiGeometryRecord>().get(theTrackerGeometry);
00102     //const TrackerGeometry& theTracker(*theTrackerGeometry);
00103     DetId outerid;
00104     
00105 
00106     //definition of the region
00107     //+++++++++++++++++++++++++
00108 
00109     int nmuons = 0;
00110     for (reco::MuonCollection::const_iterator staMuon = muonsHandle->begin();  staMuon != muonsHandle->end();  ++staMuon) {
00111 
00112       //select sta muons
00113       if (!staMuon->isStandAloneMuon()) {
00114         LogDebug("CosmicRegionalSeedGenerator") << "This muon is not a stand alone muon";
00115         continue;
00116       }
00117       
00118       //bit 25 as a coverage -1.4 < eta < 1.4
00119       if ( abs( staMuon->standAloneMuon()->eta() ) > 1.5 ) continue;
00120 
00121       //debug
00122       nmuons++;
00123       LogDebug("CosmicRegionalSeedGenerator") << "Muon stand alone found in the collection - in muons chambers: \n " 
00124                                               << "Position = " << staMuon->standAloneMuon()->outerPosition() << "\n "
00125                                               << "Momentum = " << staMuon->standAloneMuon()->outerMomentum() << "\n "
00126                                               << "Eta = " << staMuon->standAloneMuon()->eta() << "\n "
00127                                               << "Phi = " << staMuon->standAloneMuon()->phi();
00128       
00129       //initial position, momentum, charge
00130       
00131       GlobalPoint initialRegionPosition(staMuon->standAloneMuon()->referencePoint().x(), staMuon->standAloneMuon()->referencePoint().y(), staMuon->standAloneMuon()->referencePoint().z());
00132       GlobalVector initialRegionMomentum(staMuon->standAloneMuon()->momentum().x(), staMuon->standAloneMuon()->momentum().y(), staMuon->standAloneMuon()->momentum().z());
00133       int charge = (int) staMuon->standAloneMuon()->charge();
00134    
00135       LogDebug("CosmicRegionalSeedGenerator") << "Initial region - Reference point of the sta muon: \n " 
00136                                               << "Position = " << initialRegionPosition << "\n "
00137                                               << "Momentum = " << initialRegionMomentum << "\n "
00138                                               << "Eta = " << initialRegionPosition.eta() << "\n "
00139                                               << "Phi = " << initialRegionPosition.phi() << "\n "
00140                                               << "Charge = " << charge;
00141    
00142       //propagation on the last layers of TOB
00143       if ( staMuon->standAloneMuon()->outerPosition().y()>0 ) initialRegionMomentum *=-1;
00144       GlobalTrajectoryParameters glb_parameters(initialRegionPosition,
00145                                                 initialRegionMomentum,
00146                                                 charge,
00147                                                 thePropagator->magneticField());
00148       FreeTrajectoryState fts(glb_parameters);
00149       StateOnTrackerBound onBounds(thePropagator.product());
00150       TrajectoryStateOnSurface outer = onBounds(fts);
00151       
00152       if (!outer.isValid()) 
00153         {
00154           //edm::LogError("FailedPropagation") << "Trajectory state on surface not valid" ;
00155           LogDebug("CosmicRegionalSeedGenerator") << "Trajectory state on surface not valid" ;
00156           continue;
00157         }
00158 
00159 
00160       //final position & momentum
00161       GlobalPoint  regionPosition = outer.globalPosition();
00162       GlobalVector regionMom      = outer.globalMomentum();
00163       
00164       LogDebug("CosmicRegionalSeedGenerator") << "Region after propagation: \n "
00165                                               << "Position = " << outer.globalPosition() << "\n "
00166                                               << "Momentum = " << outer.globalMomentum() << "\n "
00167                                               << "R = " << regionPosition.perp() << " ---- z = " << regionPosition.z() << "\n "
00168                                               << "Eta = " << outer.globalPosition().eta() << "\n "
00169                                               << "Phi = " << outer.globalPosition().phi();
00170       
00171 
00172       //step back
00173       double stepBack = 1;
00174       GlobalPoint  center = regionPosition + stepBack * regionMom.unit();
00175       GlobalVector v = stepBack * regionMom.unit();
00176       LogDebug("CosmicRegionalSeedGenerator") << "Step back vector =  " << v << "\n";
00177 
00178       //exclude region built in jets
00179       if ( doJetsExclusionCheck_ ) {
00180         double delta_R_min = 1000.;
00181         for ( CaloJetCollection::const_iterator jet = caloJetsHandle->begin (); jet != caloJetsHandle->end(); jet++ ) {
00182           if ( jet->pt() < jetsPtMin_ ) continue;
00183           
00184           double deta = center.eta() - jet->eta();
00185           double dphi = fabs( center.phi() - jet->phi() );
00186           if ( dphi > TMath::Pi() ) dphi = 2*TMath::Pi() - dphi;
00187           
00188           double delta_R = sqrt(deta*deta + dphi*dphi);
00189           if ( delta_R < delta_R_min ) delta_R_min = delta_R;
00190           
00191         }//end loop on jets
00192         
00193         if ( delta_R_min < deltaRExclusionSize_ ) {
00194           LogDebug("CosmicRegionalSeedGenerator") << "Region built too close from a jet"; 
00195           continue;
00196         }
00197       }//end if doJetsExclusionCheck
00198       
00199         
00200       //definition of the region
00201       CosmicTrackingRegion *etaphiRegion = new CosmicTrackingRegion((-1)*regionMom,
00202                                                                     center,
00203                                                                     ptMin_,
00204                                                                     rVertex_,
00205                                                                     zVertex_,
00206                                                                     deltaEta_,
00207                                                                     deltaPhi_,
00208                                                                     regionPSet
00209                                                                     );
00210 
00211 
00212 
00213       //return the result
00214       result.push_back(etaphiRegion);      
00215 
00216       LogDebug("CosmicRegionalSeedGenerator")   << "Final CosmicTrackingRegion \n "
00217                                                 << "Position = "<< center << "\n "
00218                                                 << "Direction = "<< etaphiRegion->direction() << "\n "
00219                                                 << "Distance from the region on the layer = " << (regionPosition -center).mag() << "\n "
00220                                                 << "Eta = " << center.eta() << "\n "
00221                                                 << "Phi = " << center.phi();
00222       
00223 
00224     }//end loop on muons
00225 
00226   }//end if SeedOnStaMuon
00227 
00228 
00229 
00230 
00231 
00232   //________________________________________
00233   //
00234   //Seeding on cosmic muons (MC && Datas)
00235   //________________________________________
00236 
00237 
00238   if(regionBase_=="seedOnCosmicMuon") {
00239 
00240     LogDebug("CosmicRegionalSeedGenerator") << "Seeding on cosmic muons tracks";
00241 
00242     //get collections
00243     //+++++++++++++++
00244 
00245     //get the muon collection
00246     edm::Handle<reco::TrackCollection> cosmicMuonsHandle;
00247     event.getByLabel(recoTrackMuonsCollection_,cosmicMuonsHandle);
00248     if (!cosmicMuonsHandle.isValid())
00249       {
00250         edm::LogError("CollectionNotFound") << "Error::No cosmic muons collection (" << recoTrackMuonsCollection_ << ") in the event - Please verify the name of the muon reco track collection";
00251         return result;
00252       }
00253 
00254     LogDebug("CosmicRegionalSeedGenerator") << "Cosmic muons tracks collection size = " << cosmicMuonsHandle->size();
00255 
00256     //get the jet collection
00257     edm::Handle<CaloJetCollection> caloJetsHandle;
00258     event.getByLabel(recoCaloJetsCollection_,caloJetsHandle);
00259 
00260     //get the propagator 
00261     edm::ESHandle<Propagator> thePropagator;
00262     es.get<TrackingComponentsRecord>().get(thePropagatorName_, thePropagator); // thePropagatorName = "AnalyticalPropagator"
00263 
00264     //get tracker geometry
00265     edm::ESHandle<TrackerGeometry> theTrackerGeometry;
00266     es.get<TrackerDigiGeometryRecord>().get(theTrackerGeometry);
00267     DetId outerid;
00268     
00269 
00270     //definition of the region
00271     //+++++++++++++++++++++++++
00272 
00273     int nmuons = 0;
00274     for (reco::TrackCollection::const_iterator cosmicMuon = cosmicMuonsHandle->begin();  cosmicMuon != cosmicMuonsHandle->end();  ++cosmicMuon) {
00275       
00276       //bit 25 as a coverage -1.4 < eta < 1.4
00277       if ( abs( cosmicMuon->eta() ) > 1.5 ) continue;
00278 
00279       nmuons++;
00280             
00281       //initial position, momentum, charge
00282       GlobalPoint initialRegionPosition(cosmicMuon->referencePoint().x(), cosmicMuon->referencePoint().y(), cosmicMuon->referencePoint().z());
00283       GlobalVector initialRegionMomentum(cosmicMuon->momentum().x(), cosmicMuon->momentum().y(), cosmicMuon->momentum().z());
00284       int charge = (int) cosmicMuon->charge();
00285    
00286       LogDebug("CosmicRegionalSeedGenerator") << "Position and momentum of the muon track in the muon chambers: \n "
00287                                               << "x = " << cosmicMuon->outerPosition().x() << "\n "
00288                                               << "y = " << cosmicMuon->outerPosition().y() << "\n "
00289                                               << "y = " << cosmicMuon->pt() << "\n "
00290                                               << "Initial region - Reference point of the cosmic muon track: \n " 
00291                                               << "Position = " << initialRegionPosition << "\n "
00292                                               << "Momentum = " << initialRegionMomentum << "\n "
00293                                               << "Eta = " << initialRegionPosition.eta() << "\n "
00294                                               << "Phi = " << initialRegionPosition.phi() << "\n "
00295                                               << "Charge = " << charge;
00296    
00297       //propagation on the last layers of TOB
00298       if ( cosmicMuon->outerPosition().y()>0 && cosmicMuon->momentum().y()<0 ) initialRegionMomentum *=-1;
00299       GlobalTrajectoryParameters glb_parameters(initialRegionPosition,
00300                                                 initialRegionMomentum,
00301                                                 charge,
00302                                                 thePropagator->magneticField());
00303       FreeTrajectoryState fts(glb_parameters);
00304       StateOnTrackerBound onBounds(thePropagator.product());
00305       TrajectoryStateOnSurface outer = onBounds(fts);
00306       
00307       if (!outer.isValid()) 
00308         {
00309           //edm::LogError("FailedPropagation") << "Trajectory state on surface not valid" ;
00310           LogDebug("CosmicRegionalSeedGenerator") << "Trajectory state on surface not valid" ;
00311           continue;
00312         }
00313 
00314 
00315       //final position & momentum
00316       GlobalPoint  regionPosition = outer.globalPosition();
00317       GlobalVector regionMom      = outer.globalMomentum();
00318       
00319       LogDebug("CosmicRegionalSeedGenerator") << "Region after propagation: \n "
00320                                               << "Position = " << outer.globalPosition() << "\n "
00321                                               << "Momentum = " << outer.globalMomentum() << "\n "
00322                                               << "R = " << regionPosition.perp() << " ---- z = " << regionPosition.z() << "\n "
00323                                               << "Eta = " << outer.globalPosition().eta() << "\n "
00324                                               << "Phi = " << outer.globalPosition().phi();
00325       
00326 
00327       //step back
00328       double stepBack = 1;
00329       GlobalPoint  center = regionPosition + stepBack * regionMom.unit();
00330       GlobalVector v = stepBack * regionMom.unit();
00331       LogDebug("CosmicRegionalSeedGenerator") << "Step back vector =  " << v << "\n";
00332       
00333       //exclude region built in jets
00334       if ( doJetsExclusionCheck_ ) {    
00335         double delta_R_min = 1000.;
00336         for ( CaloJetCollection::const_iterator jet = caloJetsHandle->begin (); jet != caloJetsHandle->end(); jet++ ) {
00337           if ( jet->pt() < jetsPtMin_ ) continue;
00338           
00339           double deta = center.eta() - jet->eta();
00340           double dphi = fabs( center.phi() - jet->phi() );
00341           if ( dphi > TMath::Pi() ) dphi = 2*TMath::Pi() - dphi;
00342           
00343           double delta_R = sqrt(deta*deta + dphi*dphi);
00344           if ( delta_R < delta_R_min ) delta_R_min = delta_R;
00345           
00346         }//end loop on jets
00347         
00348         if ( delta_R_min < deltaRExclusionSize_ ) {
00349           LogDebug("CosmicRegionalSeedGenerator") << "Region built too close from a jet"; 
00350           continue;
00351         }
00352       }// end if doJetsExclusionCheck
00353 
00354       //definition of the region
00355       CosmicTrackingRegion *etaphiRegion = new CosmicTrackingRegion((-1)*regionMom,
00356                                                                     center,
00357                                                                     ptMin_,
00358                                                                     rVertex_,
00359                                                                     zVertex_,
00360                                                                     deltaEta_,
00361                                                                     deltaPhi_,
00362                                                                     regionPSet
00363                                                                     );
00364       
00365 
00366       //return the result
00367       result.push_back(etaphiRegion);      
00368 
00369       LogDebug("CosmicRegionalSeedGenerator")   << "Final CosmicTrackingRegion \n "
00370                                                 << "Position = "<< center << "\n "
00371                                                 << "Direction = "<< etaphiRegion->direction() << "\n "
00372                                                 << "Distance from the region on the layer = " << (regionPosition -center).mag() << "\n "
00373                                                 << "Eta = " << center.eta() << "\n "
00374                                                 << "Phi = " << center.phi();
00375       
00376     }//end loop on muons
00377 
00378   }//end if SeedOnCosmicMuon
00379 
00380 
00381   //________________________________________
00382   //
00383   //Seeding on L2 muons (MC && Datas)
00384   //________________________________________
00385 
00386   if(regionBase_=="seedOnL2Muon") {
00387 
00388     LogDebug("CosmicRegionalSeedGenerator") << "Seeding on L2 muons";
00389 
00390     //get collections
00391     //+++++++++++++++
00392 
00393     //get the muon collection
00394     edm::Handle<reco::RecoChargedCandidateCollection> L2MuonsHandle;
00395     event.getByLabel(recoL2MuonsCollection_,L2MuonsHandle);
00396 
00397     if (!L2MuonsHandle.isValid())
00398       {
00399         edm::LogError("CollectionNotFound") << "Error::No L2 muons collection (" << recoL2MuonsCollection_ <<") in the event - Please verify the name of the L2 muon collection";
00400         return result;
00401       }
00402 
00403     LogDebug("CosmicRegionalSeedGenerator") << "L2 muons collection size = " << L2MuonsHandle->size();
00404 
00405     //get the propagator 
00406     edm::ESHandle<Propagator> thePropagator;
00407     es.get<TrackingComponentsRecord>().get(thePropagatorName_, thePropagator); // thePropagatorName = "AnalyticalPropagator"
00408 
00409     //get tracker geometry
00410     edm::ESHandle<TrackerGeometry> theTrackerGeometry;
00411     es.get<TrackerDigiGeometryRecord>().get(theTrackerGeometry);
00412     DetId outerid;
00413     
00414 
00415     //definition of the region
00416     //+++++++++++++++++++++++++
00417 
00418     int nmuons = 0;
00419     for (reco::RecoChargedCandidateCollection::const_iterator L2Muon = L2MuonsHandle->begin();  L2Muon != L2MuonsHandle->end();  ++L2Muon) {
00420       reco::TrackRef tkL2Muon = L2Muon->get<reco::TrackRef>();
00421 
00422       //bit 25 as a coverage -1.4 < eta < 1.4
00423       if ( abs( tkL2Muon->eta() ) > 1.5 ) continue;
00424 
00425       nmuons++;
00426             
00427       //initial position, momentum, charge
00428       GlobalPoint initialRegionPosition(tkL2Muon->referencePoint().x(), tkL2Muon->referencePoint().y(), tkL2Muon->referencePoint().z());
00429       GlobalVector initialRegionMomentum(tkL2Muon->momentum().x(), tkL2Muon->momentum().y(), tkL2Muon->momentum().z());
00430       int charge = (int) tkL2Muon->charge();
00431    
00432       LogDebug("CosmicRegionalSeedGenerator") << "Position and momentum of the L2 muon track in the muon chambers: \n "
00433                                               << "x = " << tkL2Muon->outerPosition().x() << "\n "
00434                                               << "y = " << tkL2Muon->outerPosition().y() << "\n "
00435                                               << "y = " << tkL2Muon->pt() << "\n "
00436                                               << "Initial region - Reference point of the L2 muon track: \n " 
00437                                               << "Position = " << initialRegionPosition << "\n "
00438                                               << "Momentum = " << initialRegionMomentum << "\n "
00439                                               << "Eta = " << initialRegionPosition.eta() << "\n "
00440                                               << "Phi = " << initialRegionPosition.phi() << "\n "
00441                                               << "Charge = " << charge;
00442    
00443 
00444       //seeding only in the bottom
00445       if ( tkL2Muon->outerPosition().y() > 0 )
00446         {
00447           LogDebug("CosmicRegionalSeedGenerator") << "L2 muon in the TOP --- Region not created";
00448           return result;
00449         }
00450       
00451       GlobalTrajectoryParameters glb_parameters(initialRegionPosition,
00452                                                 initialRegionMomentum,
00453                                                 charge,
00454                                                 thePropagator->magneticField());
00455       FreeTrajectoryState fts(glb_parameters);
00456       StateOnTrackerBound onBounds(thePropagator.product());
00457       TrajectoryStateOnSurface outer = onBounds(fts);
00458       
00459       if (!outer.isValid()) 
00460         {
00461           //edm::LogError("FailedPropagation") << "Trajectory state on surface not valid" ;
00462           LogDebug("CosmicRegionalSeedGenerator") << "Trajectory state on surface not valid" ;
00463           continue;
00464         }
00465 
00466 
00467       //final position & momentum
00468       GlobalPoint  regionPosition = outer.globalPosition();
00469       GlobalVector regionMom      = outer.globalMomentum();
00470       
00471       LogDebug("CosmicRegionalSeedGenerator")     << "Region after propagation: \n "
00472                                                   << "Position = " << outer.globalPosition() << "\n "
00473                                                   << "Momentum = " << outer.globalMomentum() << "\n "
00474                                                   << "R = " << regionPosition.perp() << " ---- z = " << regionPosition.z() << "\n "
00475                                                   << "Eta = " << outer.globalPosition().eta() << "\n "
00476                                                   << "Phi = " << outer.globalPosition().phi();
00477       
00478 
00479       //step back
00480       double stepBack = 1;
00481       GlobalPoint  center = regionPosition + stepBack * regionMom.unit();
00482       GlobalVector v = stepBack * regionMom.unit();
00483       LogDebug("CosmicRegionalSeedGenerator") << "Step back vector =  " << v << "\n";
00484       
00485         
00486       //definition of the region
00487       CosmicTrackingRegion *etaphiRegion = new CosmicTrackingRegion((-1)*regionMom,
00488                                                                     center,
00489                                                                     ptMin_,
00490                                                                     rVertex_,
00491                                                                     zVertex_,
00492                                                                     deltaEta_,
00493                                                                     deltaPhi_,
00494                                                                     regionPSet
00495                                                                     );
00496       
00497       result.push_back(etaphiRegion);      
00498 
00499       LogDebug("CosmicRegionalSeedGenerator")       << "Final L2TrackingRegion \n "
00500                                                     << "Position = "<< center << "\n "
00501                                                     << "Direction = "<< etaphiRegion->direction() << "\n "
00502                                                     << "Distance from the region on the layer = " << (regionPosition -center).mag() << "\n "
00503                                                     << "Eta = " << center.eta() << "\n "
00504                                                     << "Phi = " << center.phi();
00505       
00506 
00507     }//end loop on muons
00508 
00509   }//end if SeedOnL2Muon
00510 
00511   return result;
00512 
00513 }
00514