#include <Py8GunBase.h>

Inheritance diagram for gen::Py8GunBase:

Public Member Functions
void	finalizeEvent ()

edm::Event &	getEDMEvent () const

HepMC::GenEvent *	getGenEvent ()

GenEventInfoProduct *	getGenEventInfo ()

GenRunInfoProduct &	getGenRunInfo ()

bool	initializeForInternalPartons ()

	Py8GunBase (edm::ParameterSet const &ps)

void	resetEvent (HepMC::GenEvent *event)

void	resetEventInfo (GenEventInfoProduct *eventInfo)

virtual bool	residualDecay ()

virtual bool	select (HepMC::GenEvent *) const

void	setEDMEvent (edm::Event &event)

void	setRandomEngine (CLHEP::HepRandomEngine *v)

std::vector< std::string > const &	sharedResources () const

void	statistics ()

	~Py8GunBase ()

Public Member Functions inherited from gen::Py8InterfaceBase
virtual const char *	classname () const =0

bool	decay ()

bool	declareSpecialSettings (const std::vector< std::string > &)

bool	declareStableParticles (const std::vector< int > &)

virtual bool	generatePartonsAndHadronize ()=0

void	p8SetRandomEngine (CLHEP::HepRandomEngine *v)

	Py8InterfaceBase (edm::ParameterSet const &ps)

P8RndmEngine &	randomEngine ()

bool	readSettings (int)

	~Py8InterfaceBase ()

Protected Member Functions
std::auto_ptr< HepMC::GenEvent > &	event ()

std::auto_ptr < GenEventInfoProduct > &	eventInfo ()

GenRunInfoProduct &	runInfo ()

Protected Attributes
double	fMaxPhi

double	fMinPhi

std::vector< int >	fPartIDs

Protected Attributes inherited from gen::Py8InterfaceBase
HepMC::IO_AsciiParticles *	ascii_io

EvtGenDecays *	evtgenDecays

std::string	evtgenDecFile

std::string	evtgenPdlFile

std::auto_ptr< Pythia8::Pythia >	fDecayer

std::auto_ptr< Pythia8::Pythia >	fMasterGen

ParameterCollector	fParameters

unsigned int	maxEventsToPrint

bool	pythiaHepMCVerbosity

bool	pythiaHepMCVerbosityParticles

unsigned int	pythiaPylistVerbosity

HepMC::Pythia8ToHepMC	toHepMC

bool	useEvtGen

Private Attributes
edm::Event *	edmEvent_

std::auto_ptr< HepMC::GenEvent >	genEvent_

std::auto_ptr < GenEventInfoProduct >	genEventInfo_

GenRunInfoProduct	genRunInfo_

Static Private Attributes
static const std::vector < std::string >	p8SharedResources = { edm::SharedResourceNames::kPythia8 }

Detailed Description

Definition at line 41 of file Py8GunBase.h.

Constructor & Destructor Documentation

gen::Py8GunBase::Py8GunBase ( edm::ParameterSet const & ps )

Definition at line 15 of file Py8GunBase.cc.

References fMaxPhi, fMinPhi, fPartIDs, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), runInfo(), GenRunInfoProduct::setExternalXSecLO(), GenRunInfoProduct::setExternalXSecNLO(), and GenRunInfoProduct::setFilterEfficiency().

    : Py8InterfaceBase(ps)
 {
 
   runInfo().setFilterEfficiency(
     ps.getUntrackedParameter<double>("filterEfficiency", -1.) );
   runInfo().setExternalXSecLO(
     GenRunInfoProduct::XSec(ps.getUntrackedParameter<double>("crossSection", -1.)) );
   runInfo().setExternalXSecNLO(
     GenRunInfoProduct::XSec(ps.getUntrackedParameter<double>("crossSectionNLO", -1.)) );
 
   // PGun specs
   //
   edm::ParameterSet pgun_params = 
     ps.getParameter<edm::ParameterSet>("PGunParameters");
       
   // although there's the method ParameterSet::empty(),  
   // it looks like it's NOT even necessary to check if it is,
   // before trying to extract parameters - if it is empty,
   // the default values seem to be taken
   //
   fPartIDs    = pgun_params.getParameter< std::vector<int> >("ParticleID");
   fMinPhi     = pgun_params.getParameter<double>("MinPhi"); // ,-3.14159265358979323846);
   fMaxPhi     = pgun_params.getParameter<double>("MaxPhi"); // , 3.14159265358979323846);
    
 }

gen::Py8GunBase::~Py8GunBase ( )

inline

Definition at line 44 of file Py8GunBase.h.

44 {}

Member Function Documentation

std::auto_ptr<HepMC::GenEvent>& gen::Py8GunBase::event ( )

inlineprotected

Definition at line 69 of file Py8GunBase.h.

References genEvent_.

Referenced by finalizeEvent(), gen::Py8PtGun::generatePartonsAndHadronize(), gen::Py8JetGun::generatePartonsAndHadronize(), gen::Py8EGun::generatePartonsAndHadronize(), core.AutoHandle.AutoHandle::Load(), core.AutoHandle.AutoHandle::product(), residualDecay(), and setEDMEvent().

69 { return genEvent_; }

gen::Py8GunBase::genEvent_

std::auto_ptr< HepMC::GenEvent > genEvent_

Definition: Py8GunBase.h:80

std::auto_ptr<GenEventInfoProduct>& gen::Py8GunBase::eventInfo ( )

inlineprotected

Definition at line 70 of file Py8GunBase.h.

References genEventInfo_.

70 { return genEventInfo_; }

gen::Py8GunBase::genEventInfo_

std::auto_ptr< GenEventInfoProduct > genEventInfo_

Definition: Py8GunBase.h:81

void gen::Py8GunBase::finalizeEvent ( )

virtual

Implements gen::Py8InterfaceBase.

Definition at line 122 of file Py8GunBase.cc.

References gen::Py8InterfaceBase::ascii_io, gather_cfg::cout, event(), gen::Py8InterfaceBase::fMasterGen, gen::Py8InterfaceBase::maxEventsToPrint, gen::Py8InterfaceBase::pythiaHepMCVerbosity, gen::Py8InterfaceBase::pythiaHepMCVerbosityParticles, and gen::Py8InterfaceBase::pythiaPylistVerbosity.

 {
    
   //******** Verbosity ********
 
   if (maxEventsToPrint > 0 &&
       (pythiaPylistVerbosity || pythiaHepMCVerbosity ||
                                 pythiaHepMCVerbosityParticles) ) 
   {
     maxEventsToPrint--;
     if (pythiaPylistVerbosity) 
     {
       fMasterGen->info.list(std::cout); 
       fMasterGen->event.list(std::cout);
     } 
 
     if (pythiaHepMCVerbosity) 
     {
       std::cout << "Event process = "
                 << fMasterGen->info.code() << "\n"
                 << "----------------------" << std::endl;
       event()->print();
     }
     if (pythiaHepMCVerbosityParticles) {
       std::cout << "Event process = "
                 << fMasterGen->info.code() << "\n"
                 << "----------------------" << std::endl;
       ascii_io->write_event(event().get());
     }
   }
       
   return;
 }

edm::Event& gen::Py8GunBase::getEDMEvent ( ) const

inline

Definition at line 56 of file Py8GunBase.h.

References edmEvent_.

56 { return *edmEvent_; }

gen::Py8GunBase::edmEvent_

edm::Event * edmEvent_

Definition: Py8GunBase.h:83

HepMC::GenEvent* gen::Py8GunBase::getGenEvent ( )

inline

Definition at line 48 of file Py8GunBase.h.

References genEvent_.

48 { return genEvent_.release(); }

gen::Py8GunBase::genEvent_

std::auto_ptr< HepMC::GenEvent > genEvent_

Definition: Py8GunBase.h:80

GenEventInfoProduct* gen::Py8GunBase::getGenEventInfo ( )

inline

Definition at line 49 of file Py8GunBase.h.

References genEventInfo_.

49 { return genEventInfo_.release(); }

gen::Py8GunBase::genEventInfo_

std::auto_ptr< GenEventInfoProduct > genEventInfo_

Definition: Py8GunBase.h:81

GenRunInfoProduct& gen::Py8GunBase::getGenRunInfo ( )

inline

Definition at line 47 of file Py8GunBase.h.

References genRunInfo_.

47 { return genRunInfo_; }

gen::Py8GunBase::genRunInfo_

GenRunInfoProduct genRunInfo_

Definition: Py8GunBase.h:79

bool gen::Py8GunBase::initializeForInternalPartons ( )

virtual

Implements gen::Py8InterfaceBase.

Definition at line 44 of file Py8GunBase.cc.

References gen::Py8InterfaceBase::evtgenDecays, gen::Py8InterfaceBase::evtgenDecFile, gen::Py8InterfaceBase::evtgenPdlFile, gen::Py8InterfaceBase::fDecayer, gen::Py8InterfaceBase::fMasterGen, and gen::Py8InterfaceBase::useEvtGen.

 {
 
   // NO MATTER what was this setting below, override it before init 
   // - this is essencial for the PGun mode 
    
   // Key requirement: switch off ProcessLevel, and thereby also PartonLevel.
   fMasterGen->readString("ProcessLevel:all = off");
   fMasterGen->readString("ProcessLevel::resonanceDecays=on");
   fMasterGen->init();
    
   // init decayer
   fDecayer->readString("ProcessLevel:all = off"); // Same trick!
   fDecayer->readString("ProcessLevel::resonanceDecays=on");
   fDecayer->init();
   
   if (useEvtGen) {
     edm::LogInfo("Pythia8Interface") << "Creating and initializing pythia8 EvtGen plugin";
 
     evtgenDecays = new EvtGenDecays(fMasterGen.get(), evtgenDecFile.c_str(), evtgenPdlFile.c_str());
     evtgenDecays->readDecayFile("evtgen_userfile.dec");
   }
 
   return true;
 
 }

void gen::Py8GunBase::resetEvent ( HepMC::GenEvent * event )

inline

Definition at line 51 of file Py8GunBase.h.

References genEvent_.

51 { genEvent_.reset(event); }

gen::Py8GunBase::genEvent_

std::auto_ptr< HepMC::GenEvent > genEvent_

Definition: Py8GunBase.h:80

gen::Py8GunBase::event

std::auto_ptr< HepMC::GenEvent > & event()

Definition: Py8GunBase.h:69

void gen::Py8GunBase::resetEventInfo ( GenEventInfoProduct * eventInfo )

inline

Definition at line 52 of file Py8GunBase.h.

References genEventInfo_.

52 { genEventInfo_.reset(eventInfo); }

gen::Py8GunBase::genEventInfo_

std::auto_ptr< GenEventInfoProduct > genEventInfo_

Definition: Py8GunBase.h:81

bool gen::Py8GunBase::residualDecay ( )

virtual

Definition at line 71 of file Py8GunBase.cc.

References event(), gen::Py8InterfaceBase::fDecayer, gen::Py8InterfaceBase::fMasterGen, GenParticle::GenParticle, query::result, and gen::Py8InterfaceBase::toHepMC.

 {
 
   Event* pythiaEvent = &(fMasterGen->event);
   
   int NPartsBeforeDecays = pythiaEvent->size()-1; // do NOT count the very 1st "system" particle 
                                                   // in Pythia8::Event record; it does NOT even
                                                   // get translated by the HepMCInterface to the
                                                   // HepMC::GenEvent record !!!
   int NPartsAfterDecays = event().get()->particles_size();
 
   if(NPartsAfterDecays == NPartsBeforeDecays) return true;
   
   bool result = true;
 
   for ( int ipart=NPartsAfterDecays; ipart>NPartsBeforeDecays; ipart-- )
   {
 
     HepMC::GenParticle* part = event().get()->barcode_to_particle( ipart );
 
     if ( part->status() == 1 && (fDecayer->particleData).canDecay(part->pdg_id()) )
     {
       fDecayer->event.reset();
       Particle py8part(  part->pdg_id(), 93, 0, 0, 0, 0, 0, 0,
                          part->momentum().x(),
                          part->momentum().y(),
                          part->momentum().z(),
                          part->momentum().t(),
                          part->generated_mass() );
       HepMC::GenVertex* ProdVtx = part->production_vertex();
       py8part.vProd( ProdVtx->position().x(), ProdVtx->position().y(), 
                      ProdVtx->position().z(), ProdVtx->position().t() );
       py8part.tau( (fDecayer->particleData).tau0( part->pdg_id() ) );
       fDecayer->event.append( py8part );
       int nentries = fDecayer->event.size();
       if ( !fDecayer->event[nentries-1].mayDecay() ) continue;
       fDecayer->next();
       int nentries1 = fDecayer->event.size();
       if ( nentries1 <= nentries ) continue; //same number of particles, no decays...
         
       part->set_status(2);
         
       result = toHepMC.fill_next_event( *(fDecayer.get()), event().get(), -1, true, part);
 
     }
   } 
 
   return result;
 
 }

GenRunInfoProduct& gen::Py8GunBase::runInfo ( )

inlineprotected

Definition at line 68 of file Py8GunBase.h.

References genRunInfo_.

Referenced by Py8GunBase(), and statistics().

68 { return genRunInfo_; }

gen::Py8GunBase::genRunInfo_

GenRunInfoProduct genRunInfo_

Definition: Py8GunBase.h:79

virtual bool gen::Py8GunBase::select ( HepMC::GenEvent * ) const

inlinevirtual

Definition at line 57 of file Py8GunBase.h.

57 { return true;}

void gen::Py8GunBase::setEDMEvent ( edm::Event & event )

inline

Definition at line 55 of file Py8GunBase.h.

References edmEvent_, and event().

55 { edmEvent_ = &event; }

gen::Py8GunBase::edmEvent_

edm::Event * edmEvent_

Definition: Py8GunBase.h:83

gen::Py8GunBase::event

std::auto_ptr< HepMC::GenEvent > & event()

Definition: Py8GunBase.h:69

void gen::Py8GunBase::setRandomEngine ( CLHEP::HepRandomEngine * v )

inline

Definition at line 64 of file Py8GunBase.h.

References gen::Py8InterfaceBase::p8SetRandomEngine().

64 { p8SetRandomEngine(v); }

gen::Py8InterfaceBase::p8SetRandomEngine

void p8SetRandomEngine(CLHEP::HepRandomEngine *v)

Definition: Py8InterfaceBase.h:40

gen::v

double v[5][pyjets_maxn]

Definition: Cascade2Hadronizer.cc:80

std::vector<std::string> const& gen::Py8GunBase::sharedResources ( ) const

inline

Definition at line 65 of file Py8GunBase.h.

References p8SharedResources.

65 { return p8SharedResources; }

gen::Py8GunBase::p8SharedResources

static const std::vector< std::string > p8SharedResources

Definition: Py8GunBase.h:85

void gen::Py8GunBase::statistics ( )

virtual

Reimplemented from gen::Py8InterfaceBase.

Definition at line 156 of file Py8GunBase.cc.

References gen::Py8InterfaceBase::fMasterGen, runInfo(), and GenRunInfoProduct::setInternalXSec().

 {
 
   fMasterGen->stat();
 
   double xsec = fMasterGen->info.sigmaGen(); // cross section in mb
   xsec *= 1.0e9; // translate to pb (CMS/Gen "convention" as of May 2009)
   runInfo().setInternalXSec(xsec);
   return;
 
 }