edm::FlatRandomOneOverPtGunProducer Class Reference

#include <FlatRandomOneOverPtGunProducer.h>

Inheritance diagram for edm::FlatRandomOneOverPtGunProducer:

Public Member Functions
	FlatRandomOneOverPtGunProducer (const ParameterSet &pset)
virtual void	produce (Event &e, const EventSetup &es) override
virtual	~FlatRandomOneOverPtGunProducer ()
Public Member Functions inherited from edm::BaseFlatGunProducer
	BaseFlatGunProducer (const ParameterSet &)
void	beginRun (const edm::Run &r, const edm::EventSetup &) override
void	endRun (edm::Run const &r, const edm::EventSetup &) override
void	endRunProduce (edm::Run &r, const edm::EventSetup &) override
virtual	~BaseFlatGunProducer ()
Public Member Functions inherited from edm::one::EDProducer< one::WatchRuns, EndRunProducer >
	EDProducer ()=default
Public Member Functions inherited from edm::one::EDProducerBase
	EDProducerBase ()
ModuleDescription const &	moduleDescription () const
virtual	~EDProducerBase ()
Public Member Functions inherited from edm::ProducerBase
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)
	ProducerBase ()
void	registerProducts (ProducerBase *, ProductRegistry *, ModuleDescription const &)
std::function< void(BranchDescription const &)>	registrationCallback () const
	used by the fwk to register list of products More...
virtual	~ProducerBase ()
Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const
	EDConsumerBase ()
ProductHolderIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const
void	itemsMayGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
void	itemsToGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
std::vector < ProductHolderIndexAndSkipBit > const &	itemsToGetFromEvent () const
void	labelsForToken (EDGetToken iToken, Labels &oLabels) const
void	modulesDependentUpon (std::string const &iProcessName, std::string const &iModuleLabel, bool iPrint, std::vector< char const * > &oModuleLabels) const
void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const
bool	registeredToConsume (ProductHolderIndex, bool, BranchType) const
bool	registeredToConsumeMany (TypeID const &, BranchType) const
void	updateLookup (BranchType iBranchType, ProductHolderIndexHelper const &)
virtual	~EDConsumerBase ()

Private Attributes
double	fMaxOneOverPt
double	fMinOneOverPt

Additional Inherited Members
Public Types inherited from edm::one::EDProducerBase
typedef EDProducerBase	ModuleType
Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList
Public Types inherited from edm::EDConsumerBase
typedef ProductLabels	Labels
Static Public Member Functions inherited from edm::one::EDProducerBase
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &descriptions)
Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)
EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)
ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...
template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()
void	consumesMany (const TypeToGet &id)
template<BranchType B>
void	consumesMany (const TypeToGet &id)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
Protected Attributes inherited from edm::BaseFlatGunProducer
bool	fAddAntiParticle
HepMC::GenEvent *	fEvt
double	fMaxEta
double	fMaxPhi
double	fMinEta
double	fMinPhi
std::vector< int >	fPartIDs
ESHandle < HepPDT::ParticleDataTable >	fPDGTable
int	fVerbosity

Detailed Description

Definition at line 14 of file FlatRandomOneOverPtGunProducer.h.

Constructor & Destructor Documentation

FlatRandomOneOverPtGunProducer::FlatRandomOneOverPtGunProducer

(

const ParameterSet &

pset

)

Definition at line 18 of file FlatRandomOneOverPtGunProducer.cc.

References fMaxOneOverPt, fMinOneOverPt, and edm::ParameterSet::getParameter().

                                                                                          : 
  BaseFlatGunProducer(pset) {


  edm::ParameterSet defpset ;
  edm::ParameterSet pgun_params = 
    pset.getParameter<ParameterSet>("PGunParameters") ;
  
  fMinOneOverPt = pgun_params.getParameter<double>("MinOneOverPt");
  fMaxOneOverPt = pgun_params.getParameter<double>("MaxOneOverPt");
  
  produces<HepMCProduct>("unsmeared");
  produces<GenEventInfoProduct>();

  edm::LogInfo("ParticleGun") << "FlatRandomOneOverPtGunProducer: initialized with minimum and maximum 1/pt " << fMinOneOverPt << ":" << fMaxOneOverPt;
}

FlatRandomOneOverPtGunProducer::~FlatRandomOneOverPtGunProducer ( )

virtual

Definition at line 35 of file FlatRandomOneOverPtGunProducer.cc.

                                                                {
  // no need to cleanup GenEvent memory - done in HepMCProduct
}

Member Function Documentation

void FlatRandomOneOverPtGunProducer::produce ( Event &  e, const EventSetup &  es  )

overridevirtual

Implements edm::one::EDProducerBase.

Definition at line 39 of file FlatRandomOneOverPtGunProducer.cc.

References funct::abs(), funct::cos(), relval_parameters_module::energy, eta, edm::EventID::event(), create_public_lumi_plots::exp, edm::BaseFlatGunProducer::fAddAntiParticle, edm::BaseFlatGunProducer::fEvt, edm::BaseFlatGunProducer::fMaxEta, fMaxOneOverPt, edm::BaseFlatGunProducer::fMaxPhi, edm::BaseFlatGunProducer::fMinEta, fMinOneOverPt, edm::BaseFlatGunProducer::fMinPhi, edm::BaseFlatGunProducer::fPartIDs, edm::BaseFlatGunProducer::fPDGTable, edm::BaseFlatGunProducer::fVerbosity, GenParticle::GenParticle, edm::RandomNumberGenerator::getEngine(), edm::EventBase::id(), dqm-mbProfile::log, LogDebug, AlCaHLTBitMon_ParallelJobs::p, phi, EnergyCorrector::pt, edm::Event::put(), funct::sin(), mathSSE::sqrt(), edm::Event::streamID(), and theta().

                                                                           {
  edm::Service<edm::RandomNumberGenerator> rng;
  CLHEP::HepRandomEngine* engine = &rng->getEngine(e.streamID());


  LogDebug("ParticleGun") << " FlatRandomOneOverPtGunProducer : Begin New Event Generation"; 

  // event loop (well, another step in it...)
          
  // no need to clean up GenEvent memory - done in HepMCProduct
  // 
   
  // here re-create fEvt (memory)
  //
  fEvt = new HepMC::GenEvent() ;
   
  // now actualy, cook up the event from PDGTable and gun parameters
  //
  // 1st, primary vertex
  //
  HepMC::GenVertex* Vtx = new HepMC::GenVertex(HepMC::FourVector(0.,0.,0.));

  // loop over particles
  //
  int barcode = 1 ;
  for (unsigned int ip=0; ip<fPartIDs.size(); ++ip) {

    double xx     = CLHEP::RandFlat::shoot(engine, 0.0, 1.0);
    double pt     = std::exp((1.-xx)*std::log(fMinOneOverPt)+
                 xx*std::log(fMaxOneOverPt)) ;
    double eta    = CLHEP::RandFlat::shoot(engine, fMinEta, fMaxEta) ;
    double phi    = CLHEP::RandFlat::shoot(engine, fMinPhi, fMaxPhi) ;
    if (pt != 0) pt = 1./pt;
    int PartID = fPartIDs[ip] ;
    const HepPDT::ParticleData* 
      PData = fPDGTable->particle(HepPDT::ParticleID(abs(PartID))) ;
    double mass   = PData->mass().value() ;
    double theta  = 2.*atan(exp(-eta)) ;
    double mom    = pt/sin(theta) ;
    double px     = pt*cos(phi) ;
    double py     = pt*sin(phi) ;
    double pz     = mom*cos(theta) ;
    double energy2= mom*mom + mass*mass ;
    double energy = sqrt(energy2) ; 
    HepMC::FourVector p(px,py,pz,energy) ;
    HepMC::GenParticle* Part = new HepMC::GenParticle(p,PartID,1);
    Part->suggest_barcode( barcode ) ;
    barcode++ ;
    Vtx->add_particle_out(Part);
    LogDebug("ParticleGun") << "FlatRandomOneOverPtGunProducer: Event generated with pt:eta:phi " << pt << " " << eta << " " << phi << " (" << theta/CLHEP::deg << ":" << phi/CLHEP::deg << ")";

    if ( fAddAntiParticle ) {
      HepMC::FourVector ap(-px,-py,-pz,energy) ;
      int APartID = -PartID ;
      if ( PartID == 22 || PartID == 23 ) {
    APartID = PartID ;
      }   
      HepMC::GenParticle* APart = new HepMC::GenParticle(ap,APartID,1);
      APart->suggest_barcode( barcode ) ;
      barcode++ ;
      Vtx->add_particle_out(APart) ;
    }

  }

  fEvt->add_vertex(Vtx) ;
  fEvt->set_event_number(e.id().event()) ;
  fEvt->set_signal_process_id(20) ; 
        
  if ( fVerbosity > 0 ) {
    fEvt->print() ;  
  }

  std::auto_ptr<HepMCProduct> BProduct(new HepMCProduct()) ;
  BProduct->addHepMCData( fEvt );
  e.put(BProduct, "unsmeared");

  std::auto_ptr<GenEventInfoProduct> genEventInfo(new GenEventInfoProduct(fEvt));
  e.put(genEventInfo);
    
  LogDebug("ParticleGun") << " FlatRandomOneOverPtGunProducer : Event Generation Done ";
}

Member Data Documentation

double edm::FlatRandomOneOverPtGunProducer::fMaxOneOverPt

private

Definition at line 28 of file FlatRandomOneOverPtGunProducer.h.

Referenced by FlatRandomOneOverPtGunProducer(), and produce().

double edm::FlatRandomOneOverPtGunProducer::fMinOneOverPt

private

Definition at line 27 of file FlatRandomOneOverPtGunProducer.h.

Referenced by FlatRandomOneOverPtGunProducer(), and produce().