#include <FastSimulation/CTPPSRecHitProducer/plugins/CTPPSRecHitProducer.cc>

Inheritance diagram for CTPPSRecHitProducer:

Public Member Functions
	CTPPSRecHitProducer (const edm::ParameterSet &)

	~CTPPSRecHitProducer () 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

Private Types
typedef std::vector< PSimHit >	PSimHitContainer

Private Member Functions
void	beginStream (edm::StreamID) override

void	endStream () override

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

Private Attributes
edm::EDGetTokenT< CrossingFrame< PSimHit > >	cf_token

double	fBeamXRMS_ToF

double	fBeamXRMS_Trk1

double	fBeamXRMS_Trk2

double	fHitSigmaX

double	fHitSigmaY

double	fHitSigmaZ

double	fTimeSigma

double	fToFCellHeight

std::vector< double >	fToFCellWidth

double	fToFInsertion

int	fToFNCellX

int	fToFNCellY

double	fToFPitchX

double	fToFPitchY

double	fToFXOffset

double	fTrackerHeight

double	fTrackerInsertion

double	fTrackerWidth

double	fTrk1XOffset

double	fTrk2XOffset

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

Description: [one line class summary]

Implementation: [Notes on implementation]

Definition at line 67 of file CTPPSRecHitProducer.cc.

Member Typedef Documentation

◆ PSimHitContainer

typedef std::vector<PSimHit> CTPPSRecHitProducer::PSimHitContainer

private

Definition at line 78 of file CTPPSRecHitProducer.cc.

Constructor & Destructor Documentation

◆ CTPPSRecHitProducer()

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

explicit

Definition at line 93 of file CTPPSRecHitProducer.cc.

                                                                        {
   produces<edm::CTPPSFastRecHitContainer>("CTPPSFastRecHits");
  
   //Name of Collection use for create the XF
   std::string mix_ = iConfig.getParameter<std::string>("mixLabel");
   std::string collection_for_XF = iConfig.getParameter<std::string>("InputCollection");
   cf_token = consumes<CrossingFrame<PSimHit> >(edm::InputTag(mix_, collection_for_XF));
  
   // Read the detector parameters
   fTrackerWidth = iConfig.getParameter<double>("TrackerWidth");
   fTrackerHeight = iConfig.getParameter<double>("TrackerHeight");
   fTrackerInsertion = iConfig.getParameter<double>("TrackerInsertion");
   fBeamXRMS_Trk1 = iConfig.getParameter<double>("BeamXRMS_Trk1");
   fBeamXRMS_Trk2 = iConfig.getParameter<double>("BeamXRMS_Trk2");
   fTrk1XOffset = iConfig.getParameter<double>("Trk1XOffset");
   fTrk2XOffset = iConfig.getParameter<double>("Trk2XOffset");
   fHitSigmaX = iConfig.getParameter<double>("HitSigmaX");
   fHitSigmaY = iConfig.getParameter<double>("HitSigmaY");
   fHitSigmaZ = iConfig.getParameter<double>("HitSigmaZ");
   fToFCellWidth = iConfig.getUntrackedParameter<std::vector<double> >("ToFCellWidth");
   fToFCellHeight = iConfig.getParameter<double>("ToFCellHeight");
   fToFPitchX = iConfig.getParameter<double>("ToFPitchX");
   fToFPitchY = iConfig.getParameter<double>("ToFPitchY");
   fToFNCellX = iConfig.getParameter<int>("ToFNCellX");
   fToFNCellY = iConfig.getParameter<int>("ToFNCellY");
   fToFInsertion = iConfig.getParameter<double>("ToFInsertion");
   fBeamXRMS_ToF = iConfig.getParameter<double>("BeamXRMS_ToF");
   fToFXOffset = iConfig.getParameter<double>("ToFXOffset");
   fTimeSigma = iConfig.getParameter<double>("TimeSigma");
  
   edm::Service<edm::RandomNumberGenerator> rng;
   if (!rng.isAvailable()) {
     throw cms::Exception("Configuration")
         << "CTPPSRecHitProducer requires the RandomNumberGeneratorService\n"
            "which is not present in the configuration file.  You must add the service\n"
            "in the configuration file or remove the modules that require it.";
   }
 }

References cf_token, Exception, fBeamXRMS_ToF, fBeamXRMS_Trk1, fBeamXRMS_Trk2, fHitSigmaX, fHitSigmaY, fHitSigmaZ, fTimeSigma, fToFCellHeight, fToFCellWidth, fToFInsertion, fToFNCellX, fToFNCellY, fToFPitchX, fToFPitchY, fToFXOffset, fTrackerHeight, fTrackerInsertion, fTrackerWidth, fTrk1XOffset, fTrk2XOffset, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), HLT_FULL_cff::InputTag, and AlCaHLTBitMon_QueryRunRegistry::string.

◆ ~CTPPSRecHitProducer()

CTPPSRecHitProducer::~CTPPSRecHitProducer ( )

override

Definition at line 132 of file CTPPSRecHitProducer.cc.

132 {}

Member Function Documentation

◆ beginStream()

void CTPPSRecHitProducer::beginStream ( edm::StreamID )

overrideprivate

Definition at line 259 of file CTPPSRecHitProducer.cc.

259 {}

◆ endStream()

void CTPPSRecHitProducer::endStream ( )

overrideprivate

Definition at line 262 of file CTPPSRecHitProducer.cc.

262 {}

◆ produce()

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

overrideprivate

Definition at line 134 of file CTPPSRecHitProducer.cc.

                                                                                {
   using namespace edm;
  
   edm::Service<edm::RandomNumberGenerator> rng;
   CLHEP::HepRandomEngine* engine = &rng->getEngine(iEvent.streamID());
   if (engine->name() != "TRandom3") {
     throw cms::Exception("Configuration") << "The TRandom3 engine type must be used with CTPPSRecHitProducer, Random "
                                              "Number Generator Service not correctly configured!";
   }
  
   //Mix the PSimHits for pileup
   Handle<CrossingFrame<PSimHit> > xFrame;
   iEvent.getByToken(cf_token, xFrame);
  
   std::unique_ptr<MixCollection<PSimHit> > simHits(new MixCollection<PSimHit>(xFrame.product()));
  
   std::vector<CTPPSFastRecHit> theCTPPSFastRecHit;
  
   for (MixCollection<PSimHit>::MixItr ihit = simHits->begin(); ihit != simHits->end(); ihit++)
  
   {
     const PSimHit* simHit = &(*ihit);
     unsigned int detlayerId = simHit->detUnitId();
     // DetId layer codification for PSimHit
     // 2014314496 -> Tracker1 zPositive
     // 2014838784 -> Tracker2 zPositive
     // 2046820352 -> Timing   zPositive
     // 2031091712 -> Tracker1 zNegative
     // 2031616000 -> Tracker2 zNegative
     // 2063597568 -> Timing   zNegative
     bool outside = false;
  
     //Make Tracker RecHits by smearing the SimHits positions and applying fiducial cuts
     CTPPSFastRecHit rechit;  // (const Local3DPoint& entry, unsigned int detId, float tof, unsigned int cellId)
     if (detlayerId == 2014314496 || detlayerId == 2031091712) {
       // Apply position smearing
       float x_trk1 = simHit->entryPoint().x() + CLHEP::RandGauss::shoot(engine, 0, fHitSigmaX * um_to_mm);
       float y_trk1 = simHit->entryPoint().y() + CLHEP::RandGauss::shoot(engine, 0, fHitSigmaY * um_to_mm);
       float z_trk1 = simHit->entryPoint().z();
  
       // Apply fiducial cuts
       double pos_trk1 = fTrackerInsertion * fBeamXRMS_Trk1 + fTrk1XOffset;
       if (x_trk1 > 0 || fabs(x_trk1) < pos_trk1 || fabs(x_trk1) > (fTrackerWidth + pos_trk1) ||
           fabs(y_trk1) > fTrackerHeight / 2.)
         outside = true;
  
       float tof = 0.0;
       unsigned int cellId = 1;
       Local3DPoint xyzzy = Local3DPoint(x_trk1, y_trk1, z_trk1);
       if (!outside) {
         rechit.setLocal3DPoint(xyzzy);
         rechit.setTof(tof);
         rechit.setDetUnitId(detlayerId);
         rechit.setCellId(cellId);
         theCTPPSFastRecHit.push_back(rechit);
       }
     }
     if (detlayerId == 2014838784 || detlayerId == 2031616000) {
       // Apply position smearing
       double x_trk2 = simHit->entryPoint().x() + CLHEP::RandGauss::shoot(engine, 0, fHitSigmaX * um_to_mm);
       double y_trk2 = simHit->entryPoint().y() + CLHEP::RandGauss::shoot(engine, 0, fHitSigmaY * um_to_mm);
       double z_trk2 = simHit->entryPoint().z();
       // Apply fiducial cuts
       double pos_trk2 = fTrackerInsertion * fBeamXRMS_Trk2 + fTrk2XOffset;
       if (x_trk2 > 0 || fabs(x_trk2) < pos_trk2 || fabs(x_trk2) > (fTrackerWidth + pos_trk2) ||
           fabs(y_trk2) > fTrackerHeight / 2.)
         outside = true;
  
       float tof = 0.0;
       unsigned int cellId = 2;
       Local3DPoint xyzzy = Local3DPoint(x_trk2, y_trk2, z_trk2);
       if (!outside) {
         rechit.setLocal3DPoint(xyzzy);
         rechit.setTof(tof);
         rechit.setDetUnitId(detlayerId);
         rechit.setCellId(cellId);
         theCTPPSFastRecHit.push_back(rechit);
       }
     }
     //Make Timing RecHits by smearing the SimHits time of flight and checking the cell of the hit
     //The RecHit position is the centre of the cell
     if (detlayerId == 2046820352 || detlayerId == 2063597568) {
       float t = simHit->tof();
       unsigned int cellId = 0;
       float tof = CLHEP::RandGauss::shoot(engine, t, fTimeSigma);
       double x_tof = simHit->entryPoint().x();
       double y_tof = simHit->entryPoint().y();
  
       double pos_tof = fToFInsertion * fBeamXRMS_ToF + fToFXOffset;
  
       std::vector<double> vToFCellWidth;
       vToFCellWidth.reserve(8);
       for (int i = 0; i < 8; i++) {
         vToFCellWidth.push_back(fToFCellWidth[i]);
       }
       CTPPSToFDetector* ToFDet = new CTPPSToFDetector(
           fToFNCellX, fToFNCellY, vToFCellWidth, fToFCellHeight, fToFPitchX, fToFPitchY, pos_tof, fTimeSigma);
       cellId = ToFDet->findCellId(x_tof, y_tof);
       if (cellId > 0) {
         double xc_tof = 0., yc_tof = 0.;
         ToFDet->get_CellCenter(cellId, xc_tof, yc_tof);
         Local3DPoint xyzzy = Local3DPoint(xc_tof, yc_tof, simHit->entryPoint().z());
         rechit.setLocal3DPoint(xyzzy);
         rechit.setTof(tof);
         rechit.setDetUnitId(detlayerId);
         rechit.setCellId(cellId);
         theCTPPSFastRecHit.push_back(rechit);
       }
     }
   }
  
   std::unique_ptr<CTPPSFastRecHitContainer> output_recHits(new edm::CTPPSFastRecHitContainer);
   output_recHits->reserve(simHits->size());
  
   int n = 0;
   for (std::vector<CTPPSFastRecHit>::const_iterator i = theCTPPSFastRecHit.begin(); i != theCTPPSFastRecHit.end();
        i++) {
     output_recHits->push_back(*i);
     n += 1;
   }
  
   iEvent.put(std::move(output_recHits), "CTPPSFastRecHits");
 }