#include <Pythia6EGun.h>

Inheritance diagram for gen::Pythia6EGun:

Public Member Functions
	Pythia6EGun (const edm::ParameterSet &)

virtual	~Pythia6EGun ()

Public Member Functions inherited from gen::Pythia6ParticleGun
	Pythia6ParticleGun (const edm::ParameterSet &)

virtual	~Pythia6ParticleGun ()

Public Member Functions inherited from gen::Pythia6Gun
void	beginJob () override

void	beginLuminosityBlock (edm::LuminosityBlock const &, edm::EventSetup const &) override

void	beginRun (edm::Run const &, edm::EventSetup const &) override

void	endRun (edm::Run const &, edm::EventSetup const &) override

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

	Pythia6Gun (const edm::ParameterSet &)

virtual	~Pythia6Gun ()

Public Member Functions inherited from edm::EDProducer
	EDProducer ()

ModuleDescription const &	moduleDescription () const

virtual	~EDProducer ()

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 ()

Protected Member Functions
void	generateEvent (CLHEP::HepRandomEngine *)

Protected Member Functions inherited from gen::Pythia6Gun
HepMC::GenParticle *	addAntiParticle (int &, int &, double &, double &, double &)

void	attachPy6DecaysToGenEvent ()

void	loadEvent (edm::Event &)

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)

Private Attributes
bool	fAddAntiParticle

double	fMaxE

double	fMaxEta

double	fMinE

double	fMinEta

Additional Inherited Members
Public Types inherited from edm::EDProducer
typedef EDProducer	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::EDProducer
static const std::string &	baseType ()

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Protected Attributes inherited from gen::Pythia6ParticleGun
std::vector< int >	fPartIDs

Protected Attributes inherited from gen::Pythia6Gun
HepMC::GenEvent *	fEvt

bool	fHepMCVerbosity

int	fMaxEventsToPrint

double	fMaxPhi

double	fMinPhi

std::vector< int >	fPartIDs

Pythia6Service *	fPy6Service

int	fPylistVerbosity

Detailed Description

Definition at line 12 of file Pythia6EGun.h.

Constructor & Destructor Documentation

Pythia6EGun::Pythia6EGun ( const edm::ParameterSet & pset )

Definition at line 18 of file Pythia6EGun.cc.

References fAddAntiParticle, fMaxE, fMaxEta, fMinE, fMinEta, and edm::ParameterSet::getParameter().

                                                    :
    Pythia6ParticleGun(pset)
 {
    
    // ParameterSet defpset ;
    ParameterSet pgun_params = 
       pset.getParameter<ParameterSet>("PGunParameters"); // , defpset ) ;
    fMinEta     = pgun_params.getParameter<double>("MinEta"); // ,-2.2);
    fMaxEta     = pgun_params.getParameter<double>("MaxEta"); // , 2.2);
    fMinE       = pgun_params.getParameter<double>("MinE"); // ,  0.);
    fMaxE       = pgun_params.getParameter<double>("MaxE"); // ,  0.);
    fAddAntiParticle = pgun_params.getParameter<bool>("AddAntiParticle"); //, false) ;  
 
 }

Pythia6EGun::~Pythia6EGun ( )

virtual

Definition at line 33 of file Pythia6EGun.cc.

34 {

35 }

Member Function Documentation

void Pythia6EGun::generateEvent ( CLHEP::HepRandomEngine * )

protectedvirtual

Implements gen::Pythia6Gun.

Definition at line 37 of file Pythia6EGun.cc.

References gen::Pythia6Gun::addAntiParticle(), eta, create_public_lumi_plots::exp, fAddAntiParticle, gen::Pythia6Gun::fEvt, fMaxE, fMaxEta, gen::Pythia6Gun::fMaxPhi, fMinE, fMinEta, gen::Pythia6Gun::fMinPhi, gen::Pythia6ParticleGun::fPartIDs, gen::Pythia6Gun::fPy6Service, GenParticle::GenParticle, i, gen::p, phi(), gen::py1ent_(), gen::pyexec_(), gen::pymass_(), and gen::pyr_().

 {
    
    Pythia6Service::InstanceWrapper guard(fPy6Service);  // grab Py6 instance
 
    // now actualy, start cooking up the event gun 
    //
 
    // 1st, primary vertex
    //
    HepMC::GenVertex* Vtx = new HepMC::GenVertex( HepMC::FourVector(0.,0.,0.));
 
    // here re-create fEvt (memory)
    //
    fEvt = new HepMC::GenEvent() ;
      
    int ip=1;
    for ( size_t i=0; i<fPartIDs.size(); i++ )
    {
      int particleID = fPartIDs[i]; // this is PDG - need to convert to Py6 !!!
      int py6PID = HepPID::translatePDTtoPythia( particleID );
          int dum = 0;
      double ee=0,the=0,eta=0;
      double mass = pymass_(particleID);
      
      // fill p(ip,5) (in PYJETS) with mass value right now,
      // because the (hardcoded) mstu(10)=1 will make py1ent
      // pick the mass from there
      pyjets.p[4][ip-1]=mass;     
      
      double phi = (fMaxPhi-fMinPhi)*pyr_(&dum)+fMinPhi;
      ee   = (fMaxE-fMinE)*pyr_(&dum)+fMinE;
      eta  = (fMaxEta-fMinEta)*pyr_(&dum)+fMinEta;                                                      
      the  = 2.*atan(exp(-eta));                                                                          
      
      py1ent_(ip, py6PID, ee, the, phi);
      
          double px     = pyjets.p[0][ip-1]; // pt*cos(phi) ;
          double py     = pyjets.p[1][ip-1]; // pt*sin(phi) ;
          double pz     = pyjets.p[2][ip-1]; // mom*cos(the) ;
  
      HepMC::FourVector p(px,py,pz,ee) ;
          HepMC::GenParticle* Part = 
              new HepMC::GenParticle(p,particleID,1);
          Part->suggest_barcode( ip ) ;
          Vtx->add_particle_out(Part);
      
      if(fAddAntiParticle)
      {
         ip = ip + 1;
         HepMC::GenParticle* APart = addAntiParticle( ip, particleID, ee, eta, phi );
         if ( APart ) Vtx->add_particle_out(APart) ;     
      }
      ip++;
    }
    
    fEvt->add_vertex(Vtx);
      
    // run pythia
    pyexec_();
    
    return;
 }