GEMDigiProducer Class Reference

Inheritance diagram for GEMDigiProducer:

Public Types
typedef edm::DetSetVector< GEMDigiSimLink >	GEMDigiSimLinks
typedef edm::DetSetVector< StripDigiSimLink >	StripDigiSimLinks
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

Public Member Functions
void	beginRun (const edm::Run &, const edm::EventSetup &) override
	GEMDigiProducer (const edm::ParameterSet &ps)
void	produce (edm::Event &, const edm::EventSetup &) override
	~GEMDigiProducer () override
Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default
bool	hasAbilityToProduceInBeginLumis () const final
bool	hasAbilityToProduceInBeginRuns () const final
bool	hasAbilityToProduceInEndLumis () const final
bool	hasAbilityToProduceInEndRuns () const final

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

Private Attributes
edm::EDGetTokenT< CrossingFrame< PSimHit > >	cf_token
std::unique_ptr< GEMDigiModule >	gemDigiModule_
const GEMGeometry *	geometry_

Detailed Description

Definition at line 38 of file GEMDigiProducer.cc.

Member Typedef Documentation

GEMDigiSimLinks

typedef edm::DetSetVector<GEMDigiSimLink> GEMDigiProducer::GEMDigiSimLinks

Definition at line 42 of file GEMDigiProducer.cc.

StripDigiSimLinks

typedef edm::DetSetVector<StripDigiSimLink> GEMDigiProducer::StripDigiSimLinks

Definition at line 40 of file GEMDigiProducer.cc.

Constructor & Destructor Documentation

GEMDigiProducer()

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

explicit

Definition at line 63 of file GEMDigiProducer.cc.

                                                          : gemDigiModule_(std::make_unique<GEMDigiModule>(ps)) {
  produces<GEMDigiCollection>();
  produces<StripDigiSimLinks>("GEM");
  produces<GEMDigiSimLinks>("GEM");
 
  edm::Service<edm::RandomNumberGenerator> rng;
  if (!rng.isAvailable()) {
    throw cms::Exception("Configuration")
        << "GEMDigiProducer::GEMDigiProducer() - RandomNumberGeneratorService is not present in configuration file.\n"
        << "Add the service in the configuration file or remove the modules that require it.";
  }
 
  std::string mix_(ps.getParameter<std::string>("mixLabel"));
  std::string collection_(ps.getParameter<std::string>("inputCollection"));
 
  cf_token = consumes<CrossingFrame<PSimHit> >(edm::InputTag(mix_, collection_));
}

References cf_token, Exception, edm::ParameterSet::getParameter(), HLT_2018_cff::InputTag, edm::Service< T >::isAvailable(), and AlCaHLTBitMon_QueryRunRegistry::string.

~GEMDigiProducer()

GEMDigiProducer::~GEMDigiProducer ( )

overridedefault

Member Function Documentation

beginRun()

void GEMDigiProducer::beginRun ( const edm::Run &  , const edm::EventSetup &  eventSetup  )

override

Definition at line 139 of file GEMDigiProducer.cc.

                                                                             {
  edm::ESHandle<GEMGeometry> hGeom;
  eventSetup.get<MuonGeometryRecord>().get(hGeom);
  gemDigiModule_->setGeometry(&*hGeom);
  geometry_ = &*hGeom;
}

References options_cfi::eventSetup, gemDigiModule_, geometry_, and get.

fillDescriptions()

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

static

Definition at line 83 of file GEMDigiProducer.cc.

                                                                                 {
  edm::ParameterSetDescription desc;
  desc.add<std::string>("inputCollection", "g4SimHitsMuonGEMHits");
  desc.add<std::string>("mixLabel", "mix");
 
  desc.add<double>("signalPropagationSpeed", 0.66);
  desc.add<double>("timeResolution", 5.);
  desc.add<double>("timeJitter", 1.0);
  desc.add<double>("averageShapingTime", 50.0);
  desc.add<double>("averageEfficiency", 0.98);
  desc.add<double>("averageNoiseRate", 0.001);
  // intrinsic noise rate (Hz/cm^2)
 
  // in terms of 25 ns
  desc.add<int>("minBunch", -5);
  desc.add<int>("maxBunch", 3);
 
  desc.add<bool>("fixedRollRadius", true);
  // Uses fixed radius in the center of the roll
  desc.add<bool>("digitizeOnlyMuons", false);
  desc.add<bool>("simulateBkgNoise", false);
  // false == No background simulation
  desc.add<bool>("simulateNoiseCLS", true);
  desc.add<bool>("simulateElectronBkg", true);
  // flase == simulate only neutral bkg
  desc.add<bool>("simulateIntrinsicNoise", false);
 
  desc.add<double>("instLumi", 7.5);
  // in units of 1E34 cm^-2 s^-1. Internally the background is parmetrized from FLUKA+GEANT result at 5E+34 (PU 140). We are adding a 1.5 factor for PU 200
  desc.add<double>("rateFact", 1.0);
  // We are adding also a safety factor of 2 to tak into account the new beam pipe effect (not yet known). Hits can be thrown away later at re-digi step. Parameters are kept in sync with the ones used in the GEM digitizer
  desc.add<double>("bxWidth", 25E-9);
  desc.add<double>("referenceInstLumi", 5.);
  // referecne inst. luminosity 5E+34 cm^-2s^-1
  desc.add<double>("resolutionX", 0.03);
 
  // The follwing parameters are needed to model the background contribution
  // The parameters have been obtained after the fit of th perdicted by FLUKA
  // By default the backgroundmodeling with these parameters should be disabled with
  // the 9_2_X release setting simulateBkgNoise = false
  desc.add<double>("GE11ModNeuBkgParam0", 5710.23);
  desc.add<double>("GE11ModNeuBkgParam1", -43.3928);
  desc.add<double>("GE11ModNeuBkgParam2", 0.0863681);
  desc.add<double>("GE21ModNeuBkgParam0", 1440.44);
  desc.add<double>("GE21ModNeuBkgParam1", -7.48607);
  desc.add<double>("GE21ModNeuBkgParam2", 0.0103078);
  desc.add<double>("GE11ElecBkgParam0", 406.249);
  desc.add<double>("GE11ElecBkgParam1", -2.90939);
  desc.add<double>("GE11ElecBkgParam2", 0.00548191);
  desc.add<double>("GE21ElecBkgParam0", 97.0505);
  desc.add<double>("GE21ElecBkgParam1", -43.3928);
  desc.add<double>("GE21ElecBkgParam2", 00.000550599);
 
  descriptions.add("simMuonGEMDigisDef", desc);
}

References edm::ConfigurationDescriptions::add(), edm::ParameterSetDescription::add(), and AlCaHLTBitMon_QueryRunRegistry::string.

produce()

void GEMDigiProducer::produce ( edm::Event &  e, const edm::EventSetup &  eventSetup  )

override

Definition at line 146 of file GEMDigiProducer.cc.

                                                                          {
  edm::Service<edm::RandomNumberGenerator> rng;
  CLHEP::HepRandomEngine* engine = &rng->getEngine(e.streamID());
 
  edm::Handle<CrossingFrame<PSimHit> > cf;
  e.getByToken(cf_token, cf);
 
  MixCollection<PSimHit> hits{cf.product()};
 
  // Create empty output
  auto digis = std::make_unique<GEMDigiCollection>();
  auto stripDigiSimLinks = std::make_unique<StripDigiSimLinks>();
  auto gemDigiSimLinks = std::make_unique<GEMDigiSimLinks>();
 
  // arrange the hits by eta partition
  std::map<uint32_t, edm::PSimHitContainer> hitMap;
  for (const auto& hit : hits) {
    hitMap[GEMDetId(hit.detUnitId()).rawId()].emplace_back(hit);
  }
 
  // simulate signal and noise for each eta partition
  const auto& etaPartitions(geometry_->etaPartitions());
 
  for (const auto& roll : etaPartitions) {
    const GEMDetId detId(roll->id());
    const uint32_t rawId(detId.rawId());
    const auto& simHits(hitMap[rawId]);
 
    LogDebug("GEMDigiProducer") << "GEMDigiProducer: found " << simHits.size() << " hit(s) in eta partition" << rawId;
 
    gemDigiModule_->simulate(roll, simHits, engine);
    gemDigiModule_->fillDigis(rawId, *digis);
    (*stripDigiSimLinks).insert(gemDigiModule_->stripDigiSimLinks());
    (*gemDigiSimLinks).insert(gemDigiModule_->gemDigiSimLinks());
  }
 
  // store them in the event
  e.put(std::move(digis));
  e.put(std::move(stripDigiSimLinks), "GEM");
  e.put(std::move(gemDigiSimLinks), "GEM");
}

References cf_token, MillePedeFileConverter_cfg::e, GEMGeometry::etaPartitions(), gemDigiModule_, geometry_, edm::RandomNumberGenerator::getEngine(), hfClusterShapes_cfi::hits, LogDebug, eostools::move(), edm::Handle< T >::product(), and FastTrackerRecHitCombiner_cfi::simHits.

Member Data Documentation

cf_token

edm::EDGetTokenT<CrossingFrame<PSimHit> > GEMDigiProducer::cf_token

private

Definition at line 56 of file GEMDigiProducer.cc.

Referenced by GEMDigiProducer(), and produce().

gemDigiModule_

std::unique_ptr<GEMDigiModule> GEMDigiProducer::gemDigiModule_

private

Definition at line 60 of file GEMDigiProducer.cc.

Referenced by beginRun(), and produce().

geometry_

const GEMGeometry* GEMDigiProducer::geometry_

private

Definition at line 58 of file GEMDigiProducer.cc.

Referenced by beginRun(), and produce().