lhef::Pythia8Hadronisation Class Reference

Inheritance diagram for lhef::Pythia8Hadronisation:

Classes
class	LHAupLesHouches

Public Member Functions
	Pythia8Hadronisation (const edm::ParameterSet &params)
	~Pythia8Hadronisation ()
Public Member Functions inherited from lhef::Hadronisation
virtual std::set< std::string >	capabilities () const
void	clear ()
	Hadronisation (const edm::ParameterSet &params)
std::auto_ptr< HepMC::GenEvent >	hadronize ()
void	init ()
virtual void	matchingCapabilities (const std::set< std::string > &capabilities)
sigc::signal< void > &	onBeforeHadronisation ()
sigc::signal< void > &	onInit ()
sigc::signal< bool, const boost::shared_ptr < HepMC::GenEvent > & > &	onShoweredEvent ()
bool	setEvent (const boost::shared_ptr< LHEEvent > &event)
virtual void	statistics ()
virtual double	totalBranchingRatio (int pdgId) const
virtual	~Hadronisation ()

Private Member Functions
std::auto_ptr< HepMC::GenEvent >	doHadronisation ()
void	doInit ()
void	newRunInfo (const boost::shared_ptr< LHERunInfo > &runInfo)

Private Attributes
std::auto_ptr< HepMC::I_Pythia8 >	conv
std::auto_ptr< LHAupLesHouches >	lhaUP
int	maxEventsToPrint
std::vector< std::string >	paramLines
std::auto_ptr< Pythia >	pythia
const int	pythiaPylistVerbosity

Additional Inherited Members
Public Types inherited from lhef::Hadronisation
typedef edmplugin::PluginFactory < Hadronisation *(const edm::ParameterSet &)>	Factory
Static Public Member Functions inherited from lhef::Hadronisation
static std::auto_ptr < Hadronisation >	create (const edm::ParameterSet &params)
Protected Member Functions inherited from lhef::Hadronisation
const boost::shared_ptr < LHEEvent > &	getRawEvent () const
bool	showeredEvent (const boost::shared_ptr< HepMC::GenEvent > &event)
bool	wantsShoweredEvent () const
bool	wantsShoweredEventAsHepMC () const

Detailed Description

Definition at line 32 of file Pythia8Hadronisation.cc.

Constructor & Destructor Documentation

lhef::Pythia8Hadronisation::Pythia8Hadronisation

(

const edm::ParameterSet &

params

)

Definition at line 127 of file Pythia8Hadronisation.cc.

References filterCSVwithJSON::copy, edm::ParameterSet::getParameter(), geometryCSVtoXML::line, groupFilesInBlocks::lines, and paramLines.

                                                                        :
    Hadronisation(params),
    pythiaPylistVerbosity(params.getUntrackedParameter<int>("pythiaPylistVerbosity", 0)),
    maxEventsToPrint(params.getUntrackedParameter<int>("maxEventsToPrint", 0))
{
    std::vector<std::string> setNames =
        params.getParameter<std::vector<std::string> >("parameterSets");

    for(std::vector<std::string>::const_iterator iter = setNames.begin();
        iter != setNames.end(); ++iter) {
        std::vector<std::string> lines =
            params.getParameter< std::vector<std::string> >(*iter);

        for(std::vector<std::string>::const_iterator line = lines.begin();
            line != lines.end(); ++line )
            if (line->substr(0, 14) == "Random:setSeed" ||
                line->substr(0, 11) == "Random:seed")
                throw cms::Exception("PythiaError")
                    << "Attempted to set random number"
                       " using Pythia command 'MRPY(1)'."
                       " Please use the"
                       " RandomNumberGeneratorService."
                    << std::endl;

        std::copy(lines.begin(), lines.end(),
                  std::back_inserter(paramLines));
    }
}

lhef::Pythia8Hadronisation::~Pythia8Hadronisation

(

)

Definition at line 156 of file Pythia8Hadronisation.cc.

{
}

Member Function Documentation

std::auto_ptr< HepMC::GenEvent > lhef::Pythia8Hadronisation::doHadronisation ( )

privatevirtual

Implements lhef::Hadronisation.

Definition at line 192 of file Pythia8Hadronisation.cc.

References conv, gather_cfg::cout, event(), lhef::Hadronisation::getRawEvent(), lhef::getStatus(), lhaUP, maxEventsToPrint, pythia, and pythiaPylistVerbosity.

{
    lhaUP->loadEvent(getRawEvent());
    if (!pythia->next())
        throw cms::Exception("PythiaError")
            << "Pythia did not want to process event."
            << std::endl;

    std::auto_ptr<HepMC::GenEvent> event(new HepMC::GenEvent);
    conv->fill_next_event(pythia->event, event.get());

    for(HepMC::GenEvent::particle_iterator iter = event->particles_begin();
        iter != event->particles_end(); iter++)
        (*iter)->set_status(getStatus(*iter));

    event->set_signal_process_id(pythia->info.code());
    event->set_event_scale(pythia->info.pTHat());

    if (maxEventsToPrint > 0) {
        maxEventsToPrint--;
        if (pythiaPylistVerbosity)
            pythia->event.list(std::cout);
    }

    return event;
}

void lhef::Pythia8Hadronisation::doInit ( )

privatevirtual

Implements lhef::Hadronisation.

Definition at line 160 of file Pythia8Hadronisation.cc.

References conv, lhaUP, edm::RandomNumberGenerator::mySeed(), paramLines, and pythia.

{
    pythia.reset(new Pythia);
    lhaUP.reset(new LHAupLesHouches(this));
    conv.reset(new HepMC::I_Pythia8);

    for(std::vector<std::string>::const_iterator iter = paramLines.begin();
        iter != paramLines.end(); ++iter)
        if (!pythia->readString(*iter))
            throw cms::Exception("PythiaError")
                << "Pythia did not accept \""
                << *iter << "\"." << std::endl;

    edm::Service<edm::RandomNumberGenerator> rng;
    std::ostringstream ss;
    ss << "Random:seed = " << rng->mySeed();
    pythia->readString(ss.str());
    pythia->readString("Random:setSeed = on");
}

void lhef::Pythia8Hadronisation::newRunInfo ( const boost::shared_ptr< LHERunInfo > &  runInfo )

privatevirtual

Reimplemented from lhef::Hadronisation.

Definition at line 219 of file Pythia8Hadronisation.cc.

References lhaUP, and pythia.

{
    lhaUP->loadRunInfo(runInfo);
    pythia->init(lhaUP.get());
}

Member Data Documentation

std::auto_ptr<HepMC::I_Pythia8> lhef::Pythia8Hadronisation::conv

private

Definition at line 50 of file Pythia8Hadronisation.cc.

Referenced by doHadronisation(), and doInit().

std::auto_ptr<LHAupLesHouches> lhef::Pythia8Hadronisation::lhaUP

private

Definition at line 49 of file Pythia8Hadronisation.cc.

Referenced by doHadronisation(), doInit(), and newRunInfo().

int lhef::Pythia8Hadronisation::maxEventsToPrint

private

Definition at line 43 of file Pythia8Hadronisation.cc.

Referenced by doHadronisation().

std::vector<std::string> lhef::Pythia8Hadronisation::paramLines

private

Definition at line 44 of file Pythia8Hadronisation.cc.

Referenced by doInit(), and Pythia8Hadronisation().

std::auto_ptr<Pythia> lhef::Pythia8Hadronisation::pythia

private

Definition at line 46 of file Pythia8Hadronisation.cc.

Referenced by doHadronisation(), doInit(), and newRunInfo().

const int lhef::Pythia8Hadronisation::pythiaPylistVerbosity

private

Definition at line 42 of file Pythia8Hadronisation.cc.

Referenced by doHadronisation().