MuonRecoValidationTool.cxx

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#include "MuonRecoValidationTool.h"
 
#include "GaudiKernel/ConcurrencyFlags.h"
#include "GaudiKernel/IIncidentSvc.h"
#include "GaudiKernel/ITHistSvc.h"
#include "MuonClusterization/TgcHitClustering.h"
#include "MuonCompetingRIOsOnTrack/CompetingMuonClustersOnTrack.h"
#include "MuonLayerEvent/MuonCandidate.h"
#include "MuonPrepRawData/RpcPrepData.h"
#include "MuonRIO_OnTrack/MuonClusterOnTrack.h"
#include "MuonRIO_OnTrack/RpcClusterOnTrack.h"
#include "MuonReadoutGeometry/RpcReadoutElement.h"
#include "MuonRecValidationNtuples/MuonBetaCalculationUtils.h"
#include "MuonSegment/MuonSegment.h"
#include "TFile.h"
#include "TTree.h"
#include "TrkPrepRawData/PrepRawData.h"
#include "TrkTrack/Track.h"
#include "xAODTruth/TruthParticle.h"
#include "xAODTruth/TruthParticleContainer.h"
#include "TruthUtils/MagicNumbers.h"
#include "AthContainers/ConstAccessor.h"
 
namespace {
    constexpr float SIG_VEL = 4.80000;
    constexpr float C_VEL = 3.33564;
}  // namespace
 
namespace Muon {
 
    MuonRecoValidationTool::MuonRecoValidationTool(const std::string& t, const std::string& n, const IInterface* p) :
        AthAlgTool(t, n, p),
        m_segmentHitSummaryTool("Muon::MuonSegmentHitSummaryTool/MuonSegmentHitSummaryTool"),
        m_hitSummaryTool("Muon::MuonHitSummaryTool/MuonHitSummaryTool"),
        m_truthSummaryTool("Muon::MuonTruthSummaryTool/MuonTruthSummaryTool"),
        m_extrapolator("Trk::Extrapolation/AtlasExtrapolator"),
        m_matchingTool("MuTagMatchingTool/MuTagMatchingTool"),
        m_hitTimingTool("Muon::MuonHitTimingTool/MuonHitTimingTool"),
        m_incidentSvc("IncidentSvc", n),
        m_candidateCounter(0) {
        declareInterface<IMuonRecoValidationTool>(this);
        declareProperty("MuonSegmentHitSummaryTool", m_segmentHitSummaryTool);
        declareProperty("MuonHitSummaryTool", m_hitSummaryTool);
        declareProperty("MuonTruthSummaryTool", m_truthSummaryTool);
        declareProperty("Extrapolator", m_extrapolator);
        declareProperty("MatchTool", m_matchingTool);
        declareProperty("MuonHitTimingTool", m_hitTimingTool);
        declareProperty("IncidentSvc", m_incidentSvc);
        declareProperty("isMC", m_isMC = false);
    }
 
    StatusCode MuonRecoValidationTool::initialize() {
 
        if (Gaudi::Concurrency::ConcurrencyFlags::numThreads() > 1) {
            ATH_MSG_ERROR("This tool cannot be used in multi-threaded mode");
            return StatusCode::FAILURE;
        }
 
        ATH_CHECK(m_idHelperSvc.retrieve());
        ATH_CHECK(m_edmHelperSvc.retrieve());
        ATH_CHECK(m_segmentHitSummaryTool.retrieve());
        ATH_CHECK(m_hitSummaryTool.retrieve());
        if (m_isMC) {
            ATH_CHECK(m_truthSummaryTool.retrieve());
        } else {
            m_truthSummaryTool.disable();
        }
        ATH_CHECK(m_extrapolator.retrieve());
        ATH_CHECK(m_matchingTool.retrieve());
        ATH_CHECK(m_hitTimingTool.retrieve());
        SmartIF<ITHistSvc> thistSvc{service("THistSvc")};
        ATH_CHECK(thistSvc.isValid());
 
        m_tree = new TTree("data", "RecoValidation");
        ATH_CHECK(thistSvc->regTree("/MuonRecoVal/data", m_tree));
 
        m_ntuple.init("", m_tree);
 
        // call handle in case of EndEvent
        ATH_CHECK(m_incidentSvc.retrieve());
        m_incidentSvc->addListener(this, IncidentType::EndEvent);
 
        return StatusCode::SUCCESS;
    }
 
    void MuonRecoValidationTool::clear() {
        m_candidateCounter = 0;
        m_ntuple.clear();
        m_trackParticles.clear();
        m_trackParticleIndexLookup.clear();
    }
 
    void MuonRecoValidationTool::handle(const Incident& inc) {
        // Only clear cache for EndEvent incident
        if (inc.type() == IncidentType::EndEvent) {
            ATH_MSG_DEBUG(" clearing cache at end of event ");
            m_tree->Fill();
            clear();
        }
    }
 
    bool MuonRecoValidationTool::addTrackParticle(const xAOD::TrackParticle& indetTrackParticle,
                                                  const MuonSystemExtension& muonSystemExtension) const {
        m_ntuple.trackParticleBlock.pt->push_back(indetTrackParticle.pt());
        m_ntuple.trackParticleBlock.p->push_back(1. / indetTrackParticle.qOverP());
        m_ntuple.trackParticleBlock.eta->push_back(indetTrackParticle.eta());
        m_ntuple.trackParticleBlock.phi->push_back(indetTrackParticle.phi());
        int pdg = 0;
        int barcode = HepMC::INVALID_PARTICLE_ID; // FIXME barcode-based
        float beta = 1.;
        // set truth
        typedef ElementLink<xAOD::TruthParticleContainer> ElementTruthLink_t;
        static const SG::ConstAccessor<ElementTruthLink_t>
          truthParticleLinkAcc("truthParticleLink");
        if (truthParticleLinkAcc.isAvailable(indetTrackParticle)) {
            const ElementTruthLink_t link = truthParticleLinkAcc(indetTrackParticle);
            if (link.isValid()) {
                pdg = (*link)->pdgId();
                barcode = HepMC::barcode(*link);
                beta = (*link)->p4().Beta();
            }
        }
        m_ntuple.trackParticleBlock.truth.fill(pdg, barcode, beta); // FIXME barcode-based
 
        // try to find the pointer of the indetTrackParticle
        bool found = false;
        for (unsigned int index = 0; index < m_trackParticles.size(); ++index) {
            if (&indetTrackParticle == m_trackParticles[index]) {
                found = true;
                break;
            }
        }
        if (!found) {
            // set index to the last element
            unsigned int index = m_trackParticles.size();
            m_trackParticles.push_back(&indetTrackParticle);
 
            const std::vector<Muon::MuonSystemExtension::Intersection>& layerIntersections = muonSystemExtension.layerIntersections();
            ATH_MSG_DEBUG("Adding ID track: pt " << indetTrackParticle.pt() << " eta " << indetTrackParticle.eta() << " phi "
                                                 << indetTrackParticle.phi() << " layers " << layerIntersections.size());
 
            for (std::vector<Muon::MuonSystemExtension::Intersection>::const_iterator it = layerIntersections.begin();
                 it != layerIntersections.end(); ++it) {
                m_trackParticleIndexLookup[it->trackParameters.get()] = index;
            }
        }
        return true;
    }
 
    int MuonRecoValidationTool::getBarcode(const std::set<Identifier>& ids) const {
      if (!m_isMC) return HepMC::INVALID_PARTICLE_ID;
 
      // count how often a barcode occurs
      std::map<int, int> counters;
      for (std::set<Identifier>::const_iterator it = ids.begin(); it != ids.end(); ++it) {
        const int bc = m_truthSummaryTool->getBarcode(*it); // FIXME barcode-based
        if (bc != HepMC::INVALID_PARTICLE_ID) ++counters[bc];
      }
 
      // pick the most frequent
      int barcode = HepMC::INVALID_PARTICLE_ID;
      int max = -1;
      for (std::map<int, int>::iterator it = counters.begin(); it != counters.end(); ++it) {
        if (it->second > max) {
          barcode = it->first; // FIXME barcode-based
          max = it->second;
        }
      }
 
      return barcode;
    }
 
    bool MuonRecoValidationTool::addTimeMeasurements(const xAOD::TrackParticle& indetTrackParticle,
                                                     const MuGirlNS::StauHits& stauHits) const {
        Muon::MuonBetaCalculationUtils muonBetaCalculationUtils;
 
        auto pos = std::find(m_trackParticles.begin(), m_trackParticles.end(), &indetTrackParticle);
        if (pos == m_trackParticles.end()) {
            ATH_MSG_WARNING("addTimeMeasurement: indetTrackParticle not found ");
            return false;
        }
        int index = std::distance(m_trackParticles.begin(), pos);
 
        for (const auto& stauHit : stauHits) {
            Identifier id = stauHit.id;
            int type = m_idHelperSvc->technologyIndex(id) + 10;
            double r = sqrt(stauHit.x * stauHit.x + stauHit.y * stauHit.y);
            double tof = muonBetaCalculationUtils.calculateTof(1, sqrt(r * r + stauHit.z * stauHit.z));
            // track index
            m_ntuple.timeBlock.track.fill(index);
 
            // identifier info
            m_ntuple.timeBlock.id.fill(m_idHelperSvc->sector(id), m_idHelperSvc->chamberIndex(id));
 
            // position + time information
            m_ntuple.timeBlock.fill(type, m_idHelperSvc->gasGapId(id).get_identifier32().get_compact(), r, stauHit.z, stauHit.mToF - tof,
                                    stauHit.error, stauHit.propagationTime, stauHit.e, tof, 0., stauHit.shift, 1000 * m_candidateCounter);
 
            // barcode + pdg
            int barcode = HepMC::INVALID_PARTICLE_ID, pdg = 0;
            if (m_isMC) {
              barcode = m_truthSummaryTool->getBarcode(id); // FIXME barcode-based
              pdg = barcode != HepMC::INVALID_PARTICLE_ID ? m_truthSummaryTool->getPdgId(barcode) : 0;
            }
            m_ntuple.timeBlock.truth.fill(pdg, barcode);
        }
        ++m_candidateCounter;
        return true;
    }
 
    bool MuonRecoValidationTool::addTimeMeasurement(const MuonSystemExtension::Intersection& intersection, const Identifier& id,
                                                    const Amg::Vector3D& gpos, float time, float errorTime) const {
        // track index
        m_ntuple.timeBlock.track.fill(getIndex(intersection));
 
        // identifier info
        m_ntuple.timeBlock.id.fill(m_idHelperSvc->sector(id), m_idHelperSvc->chamberIndex(id));
 
        // position information
        m_ntuple.timeBlock.fill(2, m_idHelperSvc->gasGapId(id).get_identifier32().get_compact(), gpos.perp(), gpos.z(), time, errorTime);
 
        // barcode + pdg
        int barcode = HepMC::INVALID_PARTICLE_ID, pdg = 0;
        if (m_isMC) {
            barcode = m_truthSummaryTool->getBarcode(id);
            pdg = barcode != HepMC::INVALID_PARTICLE_ID ? m_truthSummaryTool->getPdgId(barcode) : 0;
        }
        m_ntuple.timeBlock.truth.fill(pdg, barcode);
 
        return true;
    }
 
    bool MuonRecoValidationTool::addTimeMeasurement(const MuonSystemExtension::Intersection& intersection,
                                                    const Trk::MeasurementBase& meas) const {
        float segmentTimeCorrection = 0.;
 
        const MuonSegment* seg = dynamic_cast<const MuonSegment*>(&meas);
        if (seg && seg->hasFittedT0()) {
            m_ntuple.timeBlock.track.fill(getIndex(intersection));
 
            Identifier id = m_edmHelperSvc->chamberId(*seg);
            m_ntuple.timeBlock.id.fill(m_idHelperSvc->sector(id), m_idHelperSvc->chamberIndex(id));
 
            // position information
            m_ntuple.timeBlock.fill(1, m_idHelperSvc->chamberId(id).get_identifier32().get_compact(), seg->globalPosition().perp(),
                                    seg->globalPosition().z(), seg->time() - segmentTimeCorrection, seg->errorTime());
 
            // barcode + pdg
            std::set<Identifier> ids;
            std::vector<const MuonClusterOnTrack*> clusters;
            extract(*seg, ids, clusters);
            int barcode = getBarcode(ids);
            int pdg = 0;
            if (m_isMC) pdg = barcode != HepMC::INVALID_PARTICLE_ID ? m_truthSummaryTool->getPdgId(barcode) : 0;
            m_ntuple.timeBlock.truth.fill(pdg, barcode);
 
            return true;
        }
 
        const RpcClusterOnTrack* rpc = dynamic_cast<const RpcClusterOnTrack*>(&meas);
        if (rpc) {
            m_ntuple.timeBlock.track.fill(getIndex(intersection));
 
            Identifier id = rpc->identify();
            m_ntuple.timeBlock.id.fill(m_idHelperSvc->sector(id), m_idHelperSvc->chamberIndex(id));
 
            // barcode + pdg
            int barcode = HepMC::INVALID_PARTICLE_ID, pdg = 0;
            if (m_isMC) {
                barcode = m_truthSummaryTool->getBarcode(id);
                pdg = barcode != HepMC::INVALID_PARTICLE_ID ? m_truthSummaryTool->getPdgId(barcode) : 0;
            }
            m_ntuple.timeBlock.truth.fill(pdg, barcode);
 
            bool measphi = m_idHelperSvc->measuresPhi(id);
            const Amg::Vector3D& GP = rpc->globalPosition();
            const Muon::RpcPrepData* MClus = rpc->prepRawData();
            const MuonGM::RpcReadoutElement* rpc_readout_element = MClus->detectorElement();
            Amg::Vector3D posi = rpc_readout_element->stripPos(id);
 
            // let's correct rpc time subtracting delay due to the induced electric signal propagation along strip
            double correct_time_along_strip = 0;
            if (measphi == 0) {
                correct_time_along_strip = rpc_readout_element->distanceToEtaReadout(GP) / 1000. * SIG_VEL;
            } else {
                correct_time_along_strip = rpc_readout_element->distanceToPhiReadout(GP) / 1000. * SIG_VEL;
            }
 
            // let's evaluate the average  delay due to the induced electric signal propagation along strip
            double av_correct_time_along_strip = 0;
            if (measphi == 0) {
                av_correct_time_along_strip = rpc_readout_element->distanceToEtaReadout(posi) / 1000. * SIG_VEL;
            } else {
                av_correct_time_along_strip = rpc_readout_element->distanceToPhiReadout(posi) / 1000. * SIG_VEL;
            }
 
            // let's evaluate [real TOF - nominal TOF]
            double real_TOF_onRPCgap = GP.mag() / 1000. * C_VEL;
            double nominal_TOF_onRPCgap = posi.mag() / 1000. * C_VEL;
 
            // let's evaluate the total time correction
            double correct_time_tot = real_TOF_onRPCgap - nominal_TOF_onRPCgap + correct_time_along_strip - av_correct_time_along_strip;
 
            // time and position information
            m_ntuple.timeBlock.fill(0, m_idHelperSvc->gasGapId(id).get_identifier32().get_compact(), rpc->globalPosition().perp(),
                                    rpc->globalPosition().z(), rpc->time(), 2., correct_time_along_strip, av_correct_time_along_strip,
                                    real_TOF_onRPCgap, nominal_TOF_onRPCgap, correct_time_tot);
 
            return true;
        }
 
        return true;
    }
 
    bool MuonRecoValidationTool::add(const MuonSystemExtension::Intersection& intersection, const MuonSegment& segment, int stage) const {
        const EventContext& ctx = Gaudi::Hive::currentContext();
        m_ntuple.segmentBlock.stage->push_back(stage);
 
        Identifier id = m_edmHelperSvc->chamberId(segment);
        m_ntuple.segmentBlock.id.fill(m_idHelperSvc->sector(id), m_idHelperSvc->chamberIndex(id));
 
        // position information
        m_ntuple.segmentBlock.r->push_back(segment.globalPosition().perp());
        m_ntuple.segmentBlock.z->push_back(segment.globalPosition().z());
 
        // timing information
        float t0 = segment.hasFittedT0() ? segment.time() : -99999;
        float t0Error = segment.hasFittedT0() ? segment.errorTime() : -99999;
        m_ntuple.segmentBlock.t0->push_back(t0);
        m_ntuple.segmentBlock.t0Error->push_back(t0Error);
 
        // extract clusters and ids
        std::set<Identifier> ids;
        std::vector<const MuonClusterOnTrack*> clusters;
        extract(segment, ids, clusters);
 
        IMuonHitTimingTool::TimingResult result = m_hitTimingTool->calculateTimingResult(clusters);
        t0 = result.valid ? result.time : -99999;
        t0Error = result.valid ? result.error : -99999;
        m_ntuple.segmentBlock.t0Trig->push_back(t0);
        m_ntuple.segmentBlock.t0TrigError->push_back(t0Error);
 
        // hit counts
        IMuonSegmentHitSummaryTool::HitCounts hitCounts = m_segmentHitSummaryTool->getHitCounts(segment);
        m_ntuple.segmentBlock.nmdtHits->push_back(hitCounts.nmdtHits()+ hitCounts.nmmHits() + hitCounts.ncscHits.netaHits);
        m_ntuple.segmentBlock.ntrigEtaHits->push_back(hitCounts.netaTrigHitLayers);
        m_ntuple.segmentBlock.ntrigPhiHits->push_back(hitCounts.nphiTrigHitLayers);
 
        // barcode + pdg
        int barcode = getBarcode(ids);
        int pdg = 0;
        if (m_isMC) pdg = barcode != HepMC::INVALID_PARTICLE_ID ? m_truthSummaryTool->getPdgId(barcode) : 0;
        m_ntuple.segmentBlock.truth.fill(pdg, barcode);
 
        m_ntuple.segmentBlock.track.fill(getIndex(intersection));
 
        // extrapolate and create an intersection @ the segment surface.
        std::shared_ptr<Trk::TrackParameters> exPars(
            m_extrapolator->extrapolate(ctx, *intersection.trackParameters, segment.associatedSurface(), Trk::anyDirection, false, Trk::muon));
        if (!exPars) {
            ATH_MSG_VERBOSE(" extrapolation failed ");
            m_ntuple.segmentBlock.quality->push_back(-2);
            m_ntuple.segmentBlock.xresiduals.fill(0., 1., 0., 1., -1);
            m_ntuple.segmentBlock.yresiduals.fill(0., 1., 0., 1., -1);
            m_ntuple.segmentBlock.angleXZ.fill(0., 1., 0., 1., -1);
            m_ntuple.segmentBlock.angleYZ.fill(0., 1., 0., 1., -1);
            m_ntuple.segmentBlock.combinedYZ.fill(0., 1., 0., 1., -1);
            return false;
        }
 
        // cast to AtaPlane so we can get the segment info
        std::shared_ptr<Trk::AtaPlane> ataPlane = std::dynamic_pointer_cast<Trk::AtaPlane>(exPars);
        if (!ataPlane) {
            ATH_MSG_WARNING(" dynamic_cast<> failed ");
            m_ntuple.segmentBlock.quality->push_back(-2);
            m_ntuple.segmentBlock.angleXZ.fill(0., 1., 0., 1., -1);
            m_ntuple.segmentBlock.angleYZ.fill(0., 1., 0., 1., -1);
            m_ntuple.segmentBlock.combinedYZ.fill(0., 1., 0., 1., -1);
            return false;
        }
        MuonCombined::MuonSegmentInfo segmentInfo = m_matchingTool->muTagSegmentInfo(ctx, nullptr, segment, ataPlane);
        m_ntuple.segmentBlock.quality->push_back(segmentInfo.quality);
        m_ntuple.segmentBlock.xresiduals.fillResPull(segmentInfo.resX, segmentInfo.pullX, segmentInfo.segErrorX, segmentInfo.exErrorX, 1);
        m_ntuple.segmentBlock.yresiduals.fillResPull(segmentInfo.resY, segmentInfo.pullY, segmentInfo.segErrorY, segmentInfo.exErrorY, 1);
        m_ntuple.segmentBlock.angleXZ.fillResPull(segmentInfo.dangleXZ, segmentInfo.pullXZ, segmentInfo.segErrorXZ, segmentInfo.exErrorXZ,
                                                  1);
        m_ntuple.segmentBlock.angleYZ.fillResPull(segmentInfo.dangleYZ, segmentInfo.pullYZ, segmentInfo.segErrorYZ, segmentInfo.exErrorYZ,
                                                  1);
        m_ntuple.segmentBlock.combinedYZ.fillResPull(segmentInfo.resCY, segmentInfo.pullCY, 1);
 
        ATH_MSG_DEBUG(" Adding Segment to ntuple: stage " << stage);
 
        return true;
    }
 
    bool MuonRecoValidationTool::add(const MuonSystemExtension::Intersection& intersection,
                                     const MuonHough::MuonLayerHough::Maximum& maximum) const {
        m_ntuple.houghBlock.maximum->push_back(maximum.max);
 
        m_ntuple.houghBlock.track.fill(getIndex(intersection));
 
        int sector = -1;
        int chIndex = -1;
        float maxwidth = (maximum.binposmax - maximum.binposmin);
        if (maximum.hough) {
            maxwidth *= maximum.hough->m_binsize;
            sector = maximum.hough->m_descriptor.sector;
            chIndex = maximum.hough->m_descriptor.chIndex;
        }
        m_ntuple.houghBlock.id.fill(sector, chIndex);
        m_ntuple.houghBlock.residuals.fill(maximum.pos, maxwidth, intersection, Trk::loc1);
 
        // get truth from hits
        std::set<Identifier> ids;
 
        MuonHough::HitVec::const_iterator hit = maximum.hits.begin();
        MuonHough::HitVec::const_iterator hit_end = maximum.hits.end();
        for (; hit != hit_end; ++hit) {
            // treat the case that the hit is a composite TGC hit
            if ((*hit)->tgc) {
                for (const auto& prd : (*hit)->tgc->etaCluster) ids.insert(prd->identify());
            } else if ((*hit)->prd) {
                ids.insert((*hit)->prd->identify());
            }
        }
        int barcode = HepMC::INVALID_PARTICLE_ID, pdg = 0;
        if (m_isMC) {
            barcode = getBarcode(ids);
            pdg = barcode != HepMC::INVALID_PARTICLE_ID ? m_truthSummaryTool->getPdgId(barcode) : 0;
        }
        m_ntuple.houghBlock.truth.fill(pdg, barcode);
 
        ATH_MSG_DEBUG(" Adding Hough maximum to ntuple ");
 
        return true;
    }
 
    bool MuonRecoValidationTool::add(const MuonSystemExtension::Intersection& intersection, const Trk::PrepRawData& prd, float expos,
                                     float expos_err) const {
        Identifier id = prd.identify();
        m_ntuple.hitBlock.id.fill(m_idHelperSvc->sector(id), m_idHelperSvc->chamberIndex(id));
        m_ntuple.hitBlock.track.fill(getIndex(intersection));
 
        int barcode = HepMC::INVALID_PARTICLE_ID, pdg = 0;
        if (m_isMC) {
            barcode = m_truthSummaryTool->getBarcode(id);
            pdg = barcode != HepMC::INVALID_PARTICLE_ID ? m_truthSummaryTool->getPdgId(barcode) : 0;
        }
        m_ntuple.hitBlock.truth.fill(pdg, barcode);
 
        float sign = expos < 0 ? -1. : 1.;
        m_ntuple.hitBlock.residuals.fill(sign * prd.localPosition()[Trk::locX], Amg::error(prd.localCovariance(), Trk::locX), expos,
                                         expos_err);
 
        return true;
    }
 
    void MuonRecoValidationTool::extract(const MuonSegment& segment, std::set<Identifier>& ids,
                                         std::vector<const MuonClusterOnTrack*>& clusters) const {
        // loop over hits and extract clusters and ids
        std::vector<const Trk::MeasurementBase*>::const_iterator mit = segment.containedMeasurements().begin();
        std::vector<const Trk::MeasurementBase*>::const_iterator mit_end = segment.containedMeasurements().end();
        for (; mit != mit_end; ++mit) {
            // get Identifier and remove MDT hits
            Identifier id = m_edmHelperSvc->getIdentifier(**mit);
            if (!id.is_valid()) continue;
            ids.insert(id);
            if (!m_idHelperSvc->isTrigger(id)) continue;
 
            // cast to  MuonClusterOnTrack
            const MuonClusterOnTrack* clus = dynamic_cast<const MuonClusterOnTrack*>(*mit);
            if (clus)
                clusters.push_back(clus);
            else {
                const CompetingMuonClustersOnTrack* crot = dynamic_cast<const CompetingMuonClustersOnTrack*>(*mit);
                if (!crot || crot->containedROTs().empty()) continue;
                clusters.insert(clusters.end(), crot->containedROTs().begin(), crot->containedROTs().end());
            }
        }
    }
 
    bool MuonRecoValidationTool::addMuonCandidate(const xAOD::TrackParticle& indetTrackParticle, const MuonCandidate* candidate,
                                                  Trk::Track* combinedTrack, int ntimes, float beta, float chi2ndof, int stage) const {
        auto pos = std::find(m_trackParticles.begin(), m_trackParticles.end(), &indetTrackParticle);
        if (pos == m_trackParticles.end()) {
            ATH_MSG_WARNING("addMuonCandidate: indetTrackParticle not found ");
            return false;
        }
 
        m_ntuple.candidateBlock.track.fill(std::distance(m_trackParticles.begin(), pos));
        int nprec = 0;
        int ntrigPhi = 0;
        int ntrigEta = 0;
        int nseg = candidate ? candidate->layerIntersections.size() : 0;
        const Trk::Track* track = combinedTrack;
        if (combinedTrack) {
            IMuonHitSummaryTool::CompactSummary summary = m_hitSummaryTool->summary(*track);
            nprec = summary.nprecisionLayers;
            ntrigPhi = summary.nphiLayers;
            ntrigEta = summary.ntrigEtaLayers;
        }
        m_ntuple.candidateBlock.fill(ntimes, beta, chi2ndof, nseg, nprec, ntrigPhi, ntrigEta, stage);
        return true;
    }
 
}  // namespace Muon