lhef::Pythia8Hadronisation Class Reference

Inheritance diagram for lhef::Pythia8Hadronisation:

List of all members.

Classes
class	LHAupLesHouches
Public Member Functions
	Pythia8Hadronisation (const edm::ParameterSet &params)
	~Pythia8Hadronisation ()
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

---

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

(

)

[private, virtual]

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

(

)

[private, virtual]

Implements lhef::Hadronisation.

Definition at line 160 of file Pythia8Hadronisation.cc.

References conv, lhaUP, 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

)

[private, virtual]

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().