TotemRPLocalTrackFitter Class Reference

Fits tracks trough a single RP. More...

Inheritance diagram for TotemRPLocalTrackFitter:

Public Member Functions
void	produce (edm::Event &e, const edm::EventSetup &c) override
	TotemRPLocalTrackFitter (const edm::ParameterSet &conf)
	~TotemRPLocalTrackFitter () override
Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default
	EDProducer (const EDProducer &)=delete
bool	hasAbilityToProduceInBeginLumis () const final
bool	hasAbilityToProduceInBeginProcessBlocks () const final
bool	hasAbilityToProduceInBeginRuns () const final
bool	hasAbilityToProduceInEndLumis () const final
bool	hasAbilityToProduceInEndProcessBlocks () const final
bool	hasAbilityToProduceInEndRuns () const final
const EDProducer &	operator= (const EDProducer &)=delete

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

Private Attributes
TotemRPLocalTrackFitterAlgorithm	fitter_
	The instance of the fitter module. More...
edm::ESGetToken< CTPPSGeometry, VeryForwardRealGeometryRecord >	geometryToken
edm::ESWatcher< VeryForwardRealGeometryRecord >	geometryWatcher
	A watcher to detect geometry changes. More...
edm::EDGetTokenT< edm::DetSetVector< TotemRPUVPattern > >	patternCollectionToken
edm::InputTag	tagUVPattern
	Selection of the pattern-recognition module. More...
int	verbosity_

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
using	CacheTypes = CacheContexts< T... >
using	GlobalCache = typename CacheTypes::GlobalCache
using	HasAbility = AbilityChecker< T... >
using	InputProcessBlockCache = typename CacheTypes::InputProcessBlockCache
using	LuminosityBlockCache = typename CacheTypes::LuminosityBlockCache
using	LuminosityBlockContext = LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >
using	LuminosityBlockSummaryCache = typename CacheTypes::LuminosityBlockSummaryCache
using	RunCache = typename CacheTypes::RunCache
using	RunContext = RunContextT< RunCache, GlobalCache >
using	RunSummaryCache = typename CacheTypes::RunSummaryCache

Detailed Description

Fits tracks trough a single RP.

Definition at line 35 of file TotemRPLocalTrackFitter.cc.

Constructor & Destructor Documentation

TotemRPLocalTrackFitter()

TotemRPLocalTrackFitter::TotemRPLocalTrackFitter ( const edm::ParameterSet &  conf )

explicit

Definition at line 68 of file TotemRPLocalTrackFitter.cc.

References geometryToken, edm::ParameterSet::getParameter(), patternCollectionToken, and tagUVPattern.

    : verbosity_(conf.getParameter<int>("verbosity")), fitter_(conf) {
  tagUVPattern = conf.getParameter<edm::InputTag>("tagUVPattern");
  patternCollectionToken = consumes<DetSetVector<TotemRPUVPattern>>(tagUVPattern);
  geometryToken = esConsumes<CTPPSGeometry, VeryForwardRealGeometryRecord>();

  produces<DetSetVector<TotemRPLocalTrack>>();
}

~TotemRPLocalTrackFitter()

TotemRPLocalTrackFitter::~TotemRPLocalTrackFitter ( )

inlineoverride

Definition at line 39 of file TotemRPLocalTrackFitter.cc.

{}

Member Function Documentation

fillDescriptions()

void TotemRPLocalTrackFitter::fillDescriptions ( edm::ConfigurationDescriptions &  descr )

static

Definition at line 180 of file TotemRPLocalTrackFitter.cc.

References edm::ConfigurationDescriptions::add(), submitPVResolutionJobs::desc, and ProducerED_cfi::InputTag.

                                                                                  {
  edm::ParameterSetDescription desc;

  desc.add<edm::InputTag>("tagUVPattern", edm::InputTag("totemRPUVPatternFinder"))
      ->setComment("input U-V patterns collection to retrieve");
  desc.add<int>("verbosity", 0);

  descr.add("totemRPLocalTrackFitter", desc);
}

produce()

void TotemRPLocalTrackFitter::produce ( edm::Event &  e, const edm::EventSetup &  c  )

override

Definition at line 79 of file TotemRPLocalTrackFitter.cc.

References edm::ESWatcher< T >::check(), MillePedeFileConverter_cfg::e, fitter_, TotemRPLocalTrackFitterAlgorithm::fitTrack(), geometryToken, geometryWatcher, h, hfClusterShapes_cfi::hits, input, convertSQLitetoXML_cfg::output, topSingleLeptonDQM_PU_cfi::pattern, patternCollectionToken, pi, TotemRPUVPattern::projU, TotemRPUVPattern::projV, edm::DetSet< T >::push_back(), TotemRPLocalTrackFitterAlgorithm::reset(), singleTopDQM_cfi::setup, HLT_2023v12_cff::track, verbosity_, and HLTMuonOfflineAnalyzer_cfi::z0.

                                                                             {
  if (verbosity_ > 5)
    LogVerbatim("TotemRPLocalTrackFitter") << ">> TotemRPLocalTrackFitter::produce";

  // get geometry
  edm::ESHandle<CTPPSGeometry> geometry = setup.getHandle(geometryToken);

  if (geometryWatcher.check(setup))
    fitter_.reset();

  // get input
  edm::Handle<DetSetVector<TotemRPUVPattern>> input;
  e.getByToken(patternCollectionToken, input);

  // run fit for each RP
  DetSetVector<TotemRPLocalTrack> output;

  for (const auto &rpv : *input) {
    CTPPSDetId rpId(rpv.detId());

    // is U-V association unique?
    unsigned int n_U = 0, n_V = 0;
    unsigned int idx_U = 0, idx_V = 0;
    for (unsigned int pi = 0; pi < rpv.size(); pi++) {
      const TotemRPUVPattern &pattern = rpv[pi];

      // here it would make sense to skip non-fittable patterns, but to keep the logic
      // equivalent to version 7_0_4, nothing is skipped
      /*
      if (pattern.fittable() == false)
        continue;
      */

      switch (pattern.projection()) {
        case TotemRPUVPattern::projU:
          n_U++;
          idx_U = pi;
          break;

        case TotemRPUVPattern::projV:
          n_V++;
          idx_V = pi;
          break;

        default:
          break;
      }
    }

    if (n_U != 1 || n_V != 1) {
      if (verbosity_)
        LogVerbatim("TotemRPLocalTrackFitter")
            << ">> TotemRPLocalTrackFitter::produce > Impossible to combine U and V patterns in RP " << rpId
            << " (n_U=" << n_U << ", n_V=" << n_V << ").";

      continue;
    }

    // again, to follow the logic from version 7_0_4, skip the non-fittable patterns here
    if (!rpv[idx_U].fittable() || !rpv[idx_V].fittable())
      continue;

    // combine U and V hits
    DetSetVector<TotemRPRecHit> hits;
    for (auto &ids : rpv[idx_U].hits()) {
      auto &ods = hits.find_or_insert(ids.detId());
      for (auto &h : ids)
        ods.push_back(h);
    }

    for (auto &ids : rpv[idx_V].hits()) {
      auto &ods = hits.find_or_insert(ids.detId());
      for (auto &h : ids)
        ods.push_back(h);
    }

    // run fit
    double z0 = geometry->rpTranslation(rpId).z();

    TotemRPLocalTrack track;
    fitter_.fitTrack(hits, z0, *geometry, track);

    DetSet<TotemRPLocalTrack> &ds = output.find_or_insert(rpId);
    ds.push_back(track);

    if (verbosity_ > 5) {
      unsigned int n_hits = 0;
      for (auto &hds : track.hits())
        n_hits += hds.size();

      LogVerbatim("TotemRPLocalTrackFitter")
          << "    track in RP " << rpId << ": valid = " << track.isValid() << ", hits = " << n_hits;
    }
  }

  // save results
  e.put(make_unique<DetSetVector<TotemRPLocalTrack>>(output));
}

Member Data Documentation

fitter_

TotemRPLocalTrackFitterAlgorithm TotemRPLocalTrackFitter::fitter_

private

The instance of the fitter module.

Definition at line 57 of file TotemRPLocalTrackFitter.cc.

Referenced by produce().

geometryToken

edm::ESGetToken<CTPPSGeometry, VeryForwardRealGeometryRecord> TotemRPLocalTrackFitter::geometryToken

private

Definition at line 51 of file TotemRPLocalTrackFitter.cc.

Referenced by produce(), and TotemRPLocalTrackFitter().

geometryWatcher

edm::ESWatcher<VeryForwardRealGeometryRecord> TotemRPLocalTrackFitter::geometryWatcher

private

A watcher to detect geometry changes.

Definition at line 54 of file TotemRPLocalTrackFitter.cc.

Referenced by produce().

patternCollectionToken

edm::EDGetTokenT<edm::DetSetVector<TotemRPUVPattern> > TotemRPLocalTrackFitter::patternCollectionToken

private

Definition at line 50 of file TotemRPLocalTrackFitter.cc.

Referenced by produce(), and TotemRPLocalTrackFitter().

tagUVPattern

edm::InputTag TotemRPLocalTrackFitter::tagUVPattern

private

Selection of the pattern-recognition module.

Definition at line 48 of file TotemRPLocalTrackFitter.cc.

Referenced by TotemRPLocalTrackFitter().

verbosity_

int TotemRPLocalTrackFitter::verbosity_

private

Definition at line 45 of file TotemRPLocalTrackFitter.cc.

Referenced by produce().