Inheritance diagram for gen::Py8EGun:

Public Member Functions
const char *	classname () const override

bool	generatePartonsAndHadronize () override

	Py8EGun (edm::ParameterSet const &)

	~Py8EGun () override

Public Member Functions inherited from gen::Py8GunBase
void	evtGenDecay ()

void	finalizeEvent () override

bool	initializeForInternalPartons () override

	Py8GunBase (edm::ParameterSet const &ps)

virtual bool	residualDecay ()

void	setRandomEngine (CLHEP::HepRandomEngine *v)

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

void	statistics () override

	~Py8GunBase () override

Public Member Functions inherited from gen::Py8InterfaceBase
bool	decay ()

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

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

void	makeTmpSLHA (const std::string &)

void	p8SetRandomEngine (CLHEP::HepRandomEngine *v)

	Py8InterfaceBase (edm::ParameterSet const &ps)

P8RndmEngine &	randomEngine ()

bool	readSettings (int)

	~Py8InterfaceBase () override

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

void	cleanLHE ()

void	generateLHE (edm::LuminosityBlock const &lumi, CLHEP::HepRandomEngine *rengine, unsigned int ncpu)

edm::Event &	getEDMEvent () const

HepMC::GenEvent *	getGenEvent ()

GenEventInfoProduct *	getGenEventInfo ()

virtual GenLumiInfoHeader *	getGenLumiInfoHeader () const

GenRunInfoProduct &	getGenRunInfo ()

const boost::shared_ptr< lhef::LHERunInfo > &	getLHERunInfo () const

const std::string &	gridpackPath () const

int	randomIndex () const

const std::string &	randomInitConfigDescription () const

void	randomizeIndex (edm::LuminosityBlock const &lumi, CLHEP::HepRandomEngine *rengine)

void	resetEvent (HepMC::GenEvent *event)

void	resetEventInfo (GenEventInfoProduct *eventInfo)

virtual bool	select (HepMC::GenEvent *) const

void	setEDMEvent (edm::Event &event)

void	setLHEEvent (lhef::LHEEvent *event)

void	setLHERunInfo (lhef::LHERunInfo *runInfo)

void	setRandomEngine (CLHEP::HepRandomEngine *v)

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

virtual	~BaseHadronizer ()(false)

Private Attributes
bool	fAddAntiParticle

double	fMaxE

double	fMaxEta

double	fMinE

double	fMinEta

Additional Inherited Members
Protected Member Functions inherited from gen::BaseHadronizer
std::auto_ptr< HepMC::GenEvent > &	event ()

std::auto_ptr< GenEventInfoProduct > &	eventInfo ()

lhef::LHEEvent *	lheEvent ()

lhef::LHERunInfo *	lheRunInfo ()

GenRunInfoProduct &	runInfo ()

Protected Attributes inherited from gen::Py8GunBase
double	fMaxPhi

double	fMinPhi

std::vector< int >	fPartIDs

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

std::auto_ptr< EvtGenDecays >	evtgenDecays

std::string	evtgenDecFile

std::string	evtgenPdlFile

std::vector< std::string >	evtgenUserFiles

std::auto_ptr< Pythia8::Pythia >	fDecayer

std::auto_ptr< Pythia8::Pythia >	fMasterGen

edm::ParameterSet	fParameters

unsigned int	maxEventsToPrint

bool	pythiaHepMCVerbosity

bool	pythiaHepMCVerbosityParticles

unsigned int	pythiaPylistVerbosity

std::string	slhafile_

HepMC::Pythia8ToHepMC	toHepMC

bool	useEvtGen

Protected Attributes inherited from gen::BaseHadronizer
std::string	lheFile_

int	randomIndex_

Detailed Description

Definition at line 9 of file Py8EGun.cc.

Constructor & Destructor Documentation

gen::Py8EGun::Py8EGun ( edm::ParameterSet const & ps )

Definition at line 32 of file Py8EGun.cc.

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

    : Py8GunBase(ps)
 {
 
    // ParameterSet defpset ;
    edm::ParameterSet pgun_params =
       ps.getParameter<edm::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) ;
 
 }

gen::Py8EGun::~Py8EGun ( )

inlineoverride

Definition at line 14 of file Py8EGun.cc.

References classname(), and generatePartonsAndHadronize().

14 {}

Member Function Documentation

const char * gen::Py8EGun::classname ( ) const

overridevirtual

Implements gen::Py8InterfaceBase.

Definition at line 123 of file Py8EGun.cc.

Referenced by ~Py8EGun().

 {
    return "Py8EGun";
 }

bool gen::Py8EGun::generatePartonsAndHadronize ( )

overridevirtual

Implements gen::Py8InterfaceBase.

Definition at line 47 of file Py8EGun.cc.

References funct::abs(), mps_setup::append, funct::cos(), PVValHelper::eta, gen::BaseHadronizer::event(), gen::Py8GunBase::evtGenDecay(), JetChargeProducer_cfi::exp, fAddAntiParticle, gen::P8RndmEngine::flat(), gen::Py8InterfaceBase::fMasterGen, fMaxE, fMaxEta, gen::Py8GunBase::fMaxPhi, fMinE, fMinEta, gen::Py8GunBase::fMinPhi, gen::Py8GunBase::fPartIDs, mps_fire::i, cmsBatch::log, ResonanceBuilder::mass, EgammaObjectsElectrons_cfi::particleID, createTree::pp, gen::Py8InterfaceBase::randomEngine(), funct::sin(), findQualityFiles::size, mathSSE::sqrt(), metsig::tau, and gen::Py8InterfaceBase::toHepMC.

Referenced by ~Py8EGun().

 {
 
    fMasterGen->event.reset();
 
    for ( size_t i=0; i<fPartIDs.size(); i++ )
    {
 
       int particleID = fPartIDs[i]; // this is PDG - need to convert to Py8 ???
 
       double phi = (fMaxPhi-fMinPhi) * randomEngine().flat() + fMinPhi;
       double ee   = (fMaxE-fMinE) * randomEngine().flat() + fMinE;
       double eta  = (fMaxEta-fMinEta) * randomEngine().flat() + fMinEta;
       double the  = 2.*atan(exp(-eta));
 
       double mass = (fMasterGen->particleData).m0( particleID );
 
       double pp = sqrt( ee*ee - mass*mass );
       double px = pp * sin(the) * cos(phi);
       double py = pp * sin(the) * sin(phi);
       double pz = pp * cos(the);
 
       if ( !((fMasterGen->particleData).isParticle( particleID )) )
       {
          particleID = std::fabs(particleID) ;
       }
       if (1 <= std::abs(particleID) && std::abs(particleID) <= 6)  // quarks
       (fMasterGen->event).append(particleID, 23, 101, 0, px, py, pz, ee, mass);
       else if (std::abs(particleID) == 21)  // gluons
       (fMasterGen->event).append(21, 23, 101, 102, px, py, pz, ee, mass);
       // other
       else {
         (fMasterGen->event).append( particleID, 1, 0, 0, px, py, pz, ee, mass );
       int eventSize = (fMasterGen->event).size()-1;
 // -log(flat) = exponential distribution
       double tauTmp = -(fMasterGen->event)[eventSize].tau0() * log(randomEngine().flat());
       (fMasterGen->event)[eventSize].tau( tauTmp );
       }
 
 
 // Here also need to add anti-particle (if any)
 // otherwise just add a 2nd particle of the same type
 // (for example, gamma)
 //
       if ( fAddAntiParticle )
       {
         if (1 <= std::abs(particleID) && std::abs(particleID) <= 6) {  // quarks
           (fMasterGen->event).append(-particleID, 23, 0, 101, -px, -py, -pz, ee, mass);
         } else if (std::abs(particleID) == 21) {  // gluons
           (fMasterGen->event).append(21, 23, 102, 101, -px, -py, -pz, ee, mass);
         } else {
          if ( (fMasterGen->particleData).isParticle( -particleID ) )
             {
                (fMasterGen->event).append( -particleID, 1, 0, 0, -px, -py, -pz, ee, mass );
              }
             else
                 {
                    (fMasterGen->event).append( particleID, 1, 0, 0, -px, -py, -pz, ee, mass );
                 }
           int eventSize = (fMasterGen->event).size()-1;
           // -log(flat) = exponential distribution
           double tauTmp = -(fMasterGen->event)[eventSize].tau0() * log(randomEngine().flat());
           (fMasterGen->event)[eventSize].tau( tauTmp );
           }
 
       }
     }
 
    if ( !fMasterGen->next() ) return false;
    evtGenDecay();
 
    event().reset(new HepMC::GenEvent);
    return toHepMC.fill_next_event( fMasterGen->event, event().get() );
 
 }