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#include <Pythia6Hadronizer.h>
Definition at line 37 of file Pythia6Hadronizer.h.
anonymous enum [private] |
Definition at line 80 of file Pythia6Hadronizer.h.
{ PP, PPbar, ElectronPositron, ElectronProton, PositronProton };
| gen::Pythia6Hadronizer::Pythia6Hadronizer | ( | edm::ParameterSet const & | ps | ) |
Definition at line 92 of file Pythia6Hadronizer.cc.
References gen::call_pygive(), edm::errors::Configuration, gather_cfg::cout, SurfaceDeformationFactory::create(), ElectronPositron, ElectronProton, Exception, edm::ParameterSet::exists(), fBeam1PZ, fBeam2PZ, fConvertToPDG, fDisplayPythiaBanner, fDisplayPythiaCards, fGluinoHadronsEnabled, fImposeProperTime, fInitialState, fJetMatching, flushTmpStorage(), fStopHadronsEnabled, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), PositronProton, PP, and PPbar.
: BaseHadronizer(ps), fPy6Service( new Pythia6ServiceWithCallback(ps) ), // this will store py6 params for further settings fInitialState(PP), fCOMEnergy(ps.getParameter<double>("comEnergy")), fHepMCVerbosity(ps.getUntrackedParameter<bool>("pythiaHepMCVerbosity",false)), fMaxEventsToPrint(ps.getUntrackedParameter<int>("maxEventsToPrint", 0)), fPythiaListVerbosity(ps.getUntrackedParameter<int>("pythiaPylistVerbosity", 0)), fDisplayPythiaBanner(ps.getUntrackedParameter<bool>("displayPythiaBanner",false)), fDisplayPythiaCards(ps.getUntrackedParameter<bool>("displayPythiaCards",false)) { // J.Y.: the following 3 parameters are hacked "for a reason" // if ( ps.exists( "PPbarInitialState" ) ) { if ( fInitialState == PP ) { fInitialState = PPbar; edm::LogInfo("GeneratorInterface|Pythia6Interface") << "Pythia6 will be initialized for PROTON-ANTIPROTON INITIAL STATE. " << "This is a user-request change from the DEFAULT PROTON-PROTON initial state." << std::endl; std::cout << "Pythia6 will be initialized for PROTON-ANTIPROTON INITIAL STATE." << std::endl; std::cout << "This is a user-request change from the DEFAULT PROTON-PROTON initial state." << std::endl; } else { // probably need to throw on attempt to override ? } } else if ( ps.exists( "ElectronPositronInitialState" ) ) { if ( fInitialState == PP ) { fInitialState = ElectronPositron; edm::LogInfo("GeneratorInterface|Pythia6Interface") << "Pythia6 will be initialized for ELECTRON-POSITRON INITIAL STATE. " << "This is a user-request change from the DEFAULT PROTON-PROTON initial state." << std::endl; std::cout << "Pythia6 will be initialized for ELECTRON-POSITRON INITIAL STATE." << std::endl; std::cout << "This is a user-request change from the DEFAULT PROTON-PROTON initial state." << std::endl; } else { // probably need to throw on attempt to override ? } } else if ( ps.exists( "ElectronProtonInitialState" ) ) { if ( fInitialState == PP ) { fInitialState = ElectronProton; fBeam1PZ = (ps.getParameter<edm::ParameterSet>("ElectronProtonInitialState")).getParameter<double>("electronMomentum"); fBeam2PZ = (ps.getParameter<edm::ParameterSet>("ElectronProtonInitialState")).getParameter<double>("protonMomentum"); edm::LogInfo("GeneratorInterface|Pythia6Interface") << "Pythia6 will be initialized for ELECTRON-PROTON INITIAL STATE. " << "This is a user-request change from the DEFAULT PROTON-PROTON initial state." << std::endl; std::cout << "Pythia6 will be initialized for ELECTRON-PROTON INITIAL STATE." << std::endl; std::cout << "This is a user-request change from the DEFAULT PROTON-PROTON initial state." << std::endl; } else { // probably need to throw on attempt to override ? } } else if ( ps.exists( "PositronProtonInitialState" ) ) { if ( fInitialState == PP ) { fInitialState = PositronProton; fBeam1PZ = (ps.getParameter<edm::ParameterSet>("ElectronProtonInitialState")).getParameter<double>("positronMomentum"); fBeam2PZ = (ps.getParameter<edm::ParameterSet>("ElectronProtonInitialState")).getParameter<double>("protonMomentum"); edm::LogInfo("GeneratorInterface|Pythia6Interface") << "Pythia6 will be initialized for POSITRON-PROTON INITIAL STATE. " << "This is a user-request change from the DEFAULT PROTON-PROTON initial state." << std::endl; std::cout << "Pythia6 will be initialized for POSITRON-PROTON INITIAL STATE." << std::endl; std::cout << "This is a user-request change from the DEFAULT PROTON-PROTON initial state." << std::endl; } else { // throw on unknown initial state ! throw edm::Exception(edm::errors::Configuration,"Pythia6Interface") <<" UNKNOWN INITIAL STATE. \n The allowed initial states are: PP, PPbar, ElectronPositron, ElectronProton, and PositronProton \n"; } } // J.Y.: the following 4 params are "hacked", in the sense // that they're tracked but get in optionally; // this will be fixed once we update all applications // fStopHadronsEnabled = false; if ( ps.exists( "stopHadrons" ) ) fStopHadronsEnabled = ps.getParameter<bool>("stopHadrons") ; fGluinoHadronsEnabled = false; if ( ps.exists( "gluinoHadrons" ) ) fGluinoHadronsEnabled = ps.getParameter<bool>("gluinoHadrons"); fImposeProperTime = false; if ( ps.exists( "imposeProperTime" ) ) { fImposeProperTime = ps.getParameter<bool>("imposeProperTime"); } fConvertToPDG = false; if ( ps.exists( "doPDGConvert" ) ) fConvertToPDG = ps.getParameter<bool>("doPDGConvert"); if ( ps.exists("jetMatching") ) { edm::ParameterSet jmParams = ps.getUntrackedParameter<edm::ParameterSet>( "jetMatching"); fJetMatching = JetMatching::create(jmParams).release(); } // first of all, silence Pythia6 banner printout, unless display requested // if ( !fDisplayPythiaBanner ) { if (!call_pygive("MSTU(12)=12345")) { throw edm::Exception(edm::errors::Configuration,"PythiaError") <<" Pythia did not accept MSTU(12)=12345"; } } // silence printouts from PYGIVE, unless display requested // if ( ! fDisplayPythiaCards ) { if (!call_pygive("MSTU(13)=0")) { throw edm::Exception(edm::errors::Configuration,"PythiaError") <<" Pythia did not accept MSTU(13)=0"; } } // tmp stuff to deal with EvtGen corrupting pyjets // NPartsBeforeDecays = 0; flushTmpStorage(); }
| gen::Pythia6Hadronizer::~Pythia6Hadronizer | ( | ) |
Definition at line 239 of file Pythia6Hadronizer.cc.
References fJetMatching, and fPy6Service.
{
if ( fPy6Service != 0 ) delete fPy6Service;
if ( fJetMatching != 0 ) delete fJetMatching;
}
| const char * gen::Pythia6Hadronizer::classname | ( | ) | const |
Definition at line 1015 of file Pythia6Hadronizer.cc.
{
return "gen::Pythia6Hadronizer";
}
| bool gen::Pythia6Hadronizer::decay | ( | ) |
Definition at line 542 of file Pythia6Hadronizer.cc.
{
return true;
}
| bool gen::Pythia6Hadronizer::declareSpecialSettings | ( | const std::vector< std::string > | settings | ) |
Definition at line 888 of file Pythia6Hadronizer.cc.
References gen::call_pygive(), edm::errors::Configuration, Exception, spr::find(), gen::pycomp_(), gen::pydat1_, and relativeConstraints::value.
{
for ( unsigned int iss=0; iss<settings.size(); iss++ )
{
if ( settings[iss].find("QED-brem-off") == std::string::npos ) continue;
size_t fnd1 = settings[iss].find(":");
if ( fnd1 == std::string::npos ) continue;
std::string value = settings[iss].substr (fnd1+1);
if ( value == "all" )
{
call_pygive( "MSTJ(41)=3" );
}
else
{
int number = atoi(value.c_str());
int PyID = HepPID::translatePDTtoPythia( number );
int pyCode = pycomp_( PyID );
if ( pyCode > 0 )
{
// first of all, check if mstj(39) is 0 or if we're trying to override user's setting
// if so, throw an exception and stop, because otherwise the user will get behaviour
// that's different from what she/he expects !
if ( pydat1_.mstj[38] > 0 && pydat1_.mstj[38] != pyCode )
{
throw edm::Exception(edm::errors::Configuration,"Pythia6Interface")
<< " Fatal conflict: \n mandatory internal directive to set MSTJ(39)=" << pyCode
<< " overrides user setting MSTJ(39)=" << pydat1_.mstj[38] << " - user will not get expected behaviour \n";
}
std::ostringstream pyCard ;
pyCard << "MSTJ(39)=" << pyCode ;
call_pygive( pyCard.str() );
}
}
}
return true;
}
| bool gen::Pythia6Hadronizer::declareStableParticles | ( | const std::vector< int > | pdg | ) |
Definition at line 866 of file Pythia6Hadronizer.cc.
References gen::call_pygive(), i, and gen::pycomp_().
{
for ( unsigned int i=0; i<pdg.size(); i++ )
{
int PyID = HepPID::translatePDTtoPythia( pdg[i] );
// int PyID = pdg[i];
int pyCode = pycomp_( PyID );
if ( pyCode > 0 )
{
std::ostringstream pyCard ;
pyCard << "MDCY(" << pyCode << ",1)=0";
/* this is a test printout...
std::cout << "pdg= " << pdg[i] << " " << pyCard.str() << std::endl;
*/
call_pygive( pyCard.str() );
}
}
return true;
}
| void gen::Pythia6Hadronizer::fillTmpStorage | ( | ) | [private] |
Definition at line 263 of file Pythia6Hadronizer.cc.
References i, and gen::pyjets_local.
Referenced by generatePartonsAndHadronize(), and hadronize().
{
pyjets_local.n = pyjets.n;
pyjets_local.npad = pyjets.npad;
for ( int ip=0; ip<pyjets_maxn; ip++ )
{
for ( int i=0; i<5; i++ )
{
pyjets_local.k[i][ip] = pyjets.k[i][ip];
pyjets_local.p[i][ip] = pyjets.p[i][ip];
pyjets_local.v[i][ip] = pyjets.v[i][ip];
}
}
return ;
}
| void gen::Pythia6Hadronizer::finalizeEvent | ( | ) |
Definition at line 282 of file Pythia6Hadronizer.cc.
References abs, gen::call_pylist(), gather_cfg::cout, gen::BaseHadronizer::event(), gen::BaseHadronizer::eventInfo(), fConvertToPDG, fDisplayPythiaCards, fHepMCVerbosity, lhef::LHEEvent::fillEventInfo(), lhef::LHEEvent::fillPdfInfo(), fImposeProperTime, fMaxEventsToPrint, fPythiaListVerbosity, imposeProperTime(), gen::BaseHadronizer::lheEvent(), gen::BaseHadronizer::lheRunInfo(), pydat1, pyint1, and pypars.
{
bool lhe = lheEvent() != 0;
HepMC::PdfInfo pdf;
// if we are in hadronizer mode, we can pass on information from
// the LHE input
if (lhe)
{
lheEvent()->fillEventInfo( event().get() );
lheEvent()->fillPdfInfo( &pdf );
}
else
{
// filling in factorization "Q scale" now! pthat moved to binningValues()
//
if ( event()->signal_process_id() <= 0) event()->set_signal_process_id( pypars.msti[0] );
if ( event()->event_scale() <=0 ) event()->set_event_scale( pypars.pari[22] );
if ( event()->alphaQED() <= 0) event()->set_alphaQED( pyint1.vint[56] );
if ( event()->alphaQCD() <= 0) event()->set_alphaQCD( pyint1.vint[57] );
// get pdf info directly from Pythia6 and set it up into HepMC::GenEvent
// S. Mrenna: Prefer vint block
//
if ( pdf.id1() <= 0) pdf.set_id1( pyint1.mint[14] == 21 ? 0 : pyint1.mint[14] );
if ( pdf.id2() <= 0) pdf.set_id2( pyint1.mint[15] == 21 ? 0 : pyint1.mint[15] );
if ( pdf.x1() <= 0) pdf.set_x1( pyint1.vint[40] );
if ( pdf.x2() <= 0) pdf.set_x2( pyint1.vint[41] );
if ( pdf.pdf1() <= 0) pdf.set_pdf1( pyint1.vint[38] / pyint1.vint[40] );
if ( pdf.pdf2() <= 0) pdf.set_pdf2( pyint1.vint[39] / pyint1.vint[41] );
if ( pdf.scalePDF() <= 0) pdf.set_scalePDF( pyint1.vint[50] );
}
/* 9/9/2010 - JVY: This is the old piece of code - I can't remember why we implemented it this way.
However, it's causing problems with pdf1 & pdf2 when processing LHE samples,
specifically, because both are set to -1, it tries to fill with Py6 numbers that
are NOT valid/right at this point !
In general, for LHE/ME event processing we should implement the correct calculation
of the pdf's, rather than using py6 ones.
// filling in factorization "Q scale" now! pthat moved to binningValues()
if (!lhe || event()->signal_process_id() < 0) event()->set_signal_process_id( pypars.msti[0] );
if (!lhe || event()->event_scale() < 0) event()->set_event_scale( pypars.pari[22] );
if (!lhe || event()->alphaQED() < 0) event()->set_alphaQED( pyint1.vint[56] );
if (!lhe || event()->alphaQCD() < 0) event()->set_alphaQCD( pyint1.vint[57] );
// get pdf info directly from Pythia6 and set it up into HepMC::GenEvent
// S. Mrenna: Prefer vint block
//
if (!lhe || pdf.id1() < 0) pdf.set_id1( pyint1.mint[14] == 21 ? 0 : pyint1.mint[14] );
if (!lhe || pdf.id2() < 0) pdf.set_id2( pyint1.mint[15] == 21 ? 0 : pyint1.mint[15] );
if (!lhe || pdf.x1() < 0) pdf.set_x1( pyint1.vint[40] );
if (!lhe || pdf.x2() < 0) pdf.set_x2( pyint1.vint[41] );
if (!lhe || pdf.pdf1() < 0) pdf.set_pdf1( pyint1.vint[38] / pyint1.vint[40] );
if (!lhe || pdf.pdf2() < 0) pdf.set_pdf2( pyint1.vint[39] / pyint1.vint[41] );
if (!lhe || pdf.scalePDF() < 0) pdf.set_scalePDF( pyint1.vint[50] );
*/
event()->set_pdf_info( pdf ) ;
// this is "standard" Py6 event weight (corresponds to PYINT1/VINT(97)
//
if (lhe && std::abs(lheRunInfo()->getHEPRUP()->IDWTUP) == 4)
// translate mb to pb (CMS/Gen "convention" as of May 2009)
event()->weights().push_back( pyint1.vint[96] * 1.0e9 );
else
event()->weights().push_back( pyint1.vint[96] );
//
// this is event weight as 1./VINT(99) (PYINT1/VINT(99) is returned by the PYEVWT)
//
event()->weights().push_back( 1./(pyint1.vint[98]) );
// now create the GenEventInfo product from the GenEvent and fill
// the missing pieces
eventInfo().reset( new GenEventInfoProduct( event().get() ) );
// in Pythia6 pthat is used to subdivide samples into different bins
// in LHE mode the binning is done by the external ME generator
// which is likely not pthat, so only filling it for Py6 internal mode
if (!lhe)
{
eventInfo()->setBinningValues( std::vector<double>(1, pypars.pari[16]) );
}
// here we treat long-lived particles
//
if ( fImposeProperTime || pydat1.mstj[21]==3 || pydat1.mstj[21]==4 ) imposeProperTime();
// convert particle IDs Py6->PDG, if requested
if ( fConvertToPDG ) {
for ( HepMC::GenEvent::particle_iterator part = event()->particles_begin();
part != event()->particles_end(); ++part) {
(*part)->set_pdg_id(HepPID::translatePythiatoPDT((*part)->pdg_id()));
}
}
// service printouts, if requested
//
if (fMaxEventsToPrint > 0)
{
fMaxEventsToPrint--;
if (fPythiaListVerbosity) call_pylist(fPythiaListVerbosity);
if (fHepMCVerbosity)
{
std::cout << "Event process = " << pypars.msti[0] << std::endl
<< "----------------------" << std::endl;
event()->print();
}
}
// dump of all settings after all initializations
if ( fDisplayPythiaCards ) {
fDisplayPythiaCards = false;
call_pylist(12);
call_pylist(13);
std::cout << "\n PYPARS \n" << std::endl;
std::cout << std::setw(5) << std::fixed << "I"
<< std::setw(10) << std::fixed << "MSTP(I)"
<< std::setw(16) << std::fixed << "PARP(I)"
<< std::setw(10) << std::fixed << "MSTI(I)"
<< std::setw(16) << std::fixed << "PARI(I)" << std::endl;
for ( unsigned int ind=0; ind < 200; ind++ ) {
std::cout << std::setw(5) << std::fixed << ind+1
<< std::setw(10) << std::fixed << pypars.mstp[ind]
<< std::setw(16) << std::fixed << pypars.parp[ind]
<< std::setw(10) << std::fixed << pypars.msti[ind]
<< std::setw(16) << std::fixed << pypars.pari[ind] << std::endl;
}
}
return;
}
| void gen::Pythia6Hadronizer::flushTmpStorage | ( | ) | [private] |
Definition at line 245 of file Pythia6Hadronizer.cc.
References i, and gen::pyjets_local.
Referenced by generatePartonsAndHadronize(), hadronize(), and Pythia6Hadronizer().
{
pyjets_local.n = 0 ;
pyjets_local.npad = 0 ;
for ( int ip=0; ip<pyjets_maxn; ip++ )
{
for ( int i=0; i<5; i++ )
{
pyjets_local.k[i][ip] = 0;
pyjets_local.p[i][ip] = 0.;
pyjets_local.v[i][ip] = 0.;
}
}
return;
}
| bool gen::Pythia6Hadronizer::generatePartonsAndHadronize | ( | ) |
Definition at line 420 of file Pythia6Hadronizer.cc.
References gen::call_pygive(), conv, gen::BaseHadronizer::event(), fGluinoHadronsEnabled, fillTmpStorage(), flushTmpStorage(), fPy6Service, fStopHadronsEnabled, gen::FortranCallback::getInstance(), gen::pyglfr_(), pyint1, gen::pystfr_(), and gen::FortranCallback::resetIterationsPerEvent().
{
Pythia6Service::InstanceWrapper guard(fPy6Service); // grab Py6 instance
FortranCallback::getInstance()->resetIterationsPerEvent();
// generate event with Pythia6
//
if ( fStopHadronsEnabled || fGluinoHadronsEnabled )
{
// call_pygive("MSTJ(1)=-1");
call_pygive("MSTJ(14)=-1");
}
call_pyevnt();
if ( fStopHadronsEnabled || fGluinoHadronsEnabled )
{
// call_pygive("MSTJ(1)=1");
call_pygive("MSTJ(14)=1");
int ierr=0;
if ( fStopHadronsEnabled )
{
pystfr_(ierr);
if ( ierr != 0 ) // skip failed events
{
event().reset();
return false;
}
}
if ( fGluinoHadronsEnabled ) pyglfr_();
}
if ( pyint1.mint[50] != 0 ) // skip event if py6 considers it bad
{
event().reset();
return false;
}
call_pyhepc(1);
event().reset( conv.read_next_event() );
// this is to deal with post-gen tools & residualDecay() that may reuse PYJETS
//
flushTmpStorage();
fillTmpStorage();
return true;
}
| static JetMatching* gen::Pythia6Hadronizer::getJetMatching | ( | ) | [inline, static] |
Definition at line 55 of file Pythia6Hadronizer.h.
References fJetMatching.
Referenced by gen::Pythia6ServiceWithCallback::upEvnt(), and gen::Pythia6ServiceWithCallback::upVeto().
{ return fJetMatching; }
| bool gen::Pythia6Hadronizer::hadronize | ( | ) |
Definition at line 471 of file Pythia6Hadronizer.cc.
References gen::JetMatching::beforeHadronisation(), gen::call_pygive(), conv, lhef::LHEEvent::count(), gen::BaseHadronizer::event(), fGluinoHadronsEnabled, fillTmpStorage(), fJetMatching, flushTmpStorage(), fPy6Service, fStopHadronsEnabled, gen::FortranCallback::getInstance(), hepeup_, lhef::LHERunInfo::kAccepted, lhef::LHERunInfo::kSelected, gen::BaseHadronizer::lheEvent(), HEPEUP_::nup, gen::pyglfr_(), pyint1, pypars, gen::pystfr_(), gen::FortranCallback::resetIterationsPerEvent(), gen::JetMatching::resetMatchingStatus(), and gen::FortranCallback::setLHEEvent().
{
Pythia6Service::InstanceWrapper guard(fPy6Service); // grab Py6 instance
FortranCallback::getInstance()->setLHEEvent( lheEvent() );
FortranCallback::getInstance()->resetIterationsPerEvent();
if ( fJetMatching )
{
fJetMatching->resetMatchingStatus() ;
fJetMatching->beforeHadronisation( lheEvent() );
}
// generate event with Pythia6
//
if ( fStopHadronsEnabled || fGluinoHadronsEnabled )
{
call_pygive("MSTJ(1)=-1");
call_pygive("MSTJ(14)=-1");
}
call_pyevnt();
if ( FortranCallback::getInstance()->getIterationsPerEvent() > 1 ||
hepeup_.nup <= 0 || pypars.msti[0] == 1 )
{
// update LHE matching statistics
lheEvent()->count( lhef::LHERunInfo::kSelected );
event().reset();
return false;
}
// update LHE matching statistics
//
lheEvent()->count( lhef::LHERunInfo::kAccepted );
if ( fStopHadronsEnabled || fGluinoHadronsEnabled )
{
call_pygive("MSTJ(1)=1");
call_pygive("MSTJ(14)=1");
int ierr = 0;
if ( fStopHadronsEnabled )
{
pystfr_(ierr);
if ( ierr != 0 ) // skip failed events
{
event().reset();
return false;
}
}
if ( fGluinoHadronsEnabled ) pyglfr_();
}
if ( pyint1.mint[50] != 0 ) // skip event if py6 considers it bad
{
event().reset();
return false;
}
call_pyhepc(1);
event().reset( conv.read_next_event() );
// this is to deal with post-gen tools and/or residualDecay(), that may reuse PYJETS
//
flushTmpStorage();
fillTmpStorage();
return true;
}
| void gen::Pythia6Hadronizer::imposeProperTime | ( | ) | [private] |
Definition at line 931 of file Pythia6Hadronizer.cc.
References abs, gen::FortranInstance::call(), gen::BaseHadronizer::event(), fPy6Service, create_public_lumi_plots::log, gen::pycomp_(), pydat1, gen::pyr_(), mathSSE::sqrt(), lumiQTWidget::t, vbegin, vend, x, detailsBasic3DVector::y, and z.
Referenced by finalizeEvent().
{
// this is practically a copy/paste of the original code by J.Alcaraz,
// taken directly from PythiaSource
int dumm=0;
HepMC::GenEvent::vertex_const_iterator vbegin = event()->vertices_begin();
HepMC::GenEvent::vertex_const_iterator vend = event()->vertices_end();
HepMC::GenEvent::vertex_const_iterator vitr = vbegin;
for (; vitr != vend; ++vitr )
{
HepMC::GenVertex::particle_iterator pbegin = (*vitr)->particles_begin(HepMC::children);
HepMC::GenVertex::particle_iterator pend = (*vitr)->particles_end(HepMC::children);
HepMC::GenVertex::particle_iterator pitr = pbegin;
for (; pitr != pend; ++pitr)
{
if ((*pitr)->end_vertex()) continue;
if ((*pitr)->status()!=1) continue;
int pdgcode= abs((*pitr)->pdg_id());
// Do nothing if the particle is not expected to decay
if ( pydat3.mdcy[0][pycomp_(pdgcode)-1] !=1 ) continue;
double ctau = pydat2.pmas[3][pycomp_(pdgcode)-1];
HepMC::FourVector mom = (*pitr)->momentum();
HepMC::FourVector vin = (*vitr)->position();
double x = 0.;
double y = 0.;
double z = 0.;
double t = 0.;
bool decayInRange = false;
while (!decayInRange)
{
double unif_rand = fPy6Service->call(pyr_, &dumm);
// Value of 0 is excluded, so following line is OK
double proper_length = - ctau * log(unif_rand);
double factor = proper_length/mom.m();
x = vin.x() + factor * mom.px();
y = vin.y() + factor * mom.py();
z = vin.z() + factor * mom.pz();
t = vin.t() + factor * mom.e();
// Decay must be happen outside a cylindrical region
if (pydat1.mstj[21]==4) {
if (std::sqrt(x*x+y*y)>pydat1.parj[72] || fabs(z)>pydat1.parj[73]) decayInRange = true;
// Decay must be happen outside a given sphere
}
else if (pydat1.mstj[21]==3) {
if (std::sqrt(x*x+y*y+z*z)>pydat1.parj[71]) decayInRange = true;
}
// Decay is always OK otherwise
else {
decayInRange = true;
}
}
HepMC::GenVertex* vdec = new HepMC::GenVertex(HepMC::FourVector(x,y,z,t));
event()->add_vertex(vdec);
vdec->add_particle_in((*pitr));
}
}
return;
}
| bool gen::Pythia6Hadronizer::initializeForExternalPartons | ( | ) |
Definition at line 740 of file Pythia6Hadronizer.cc.
References gen::call_pygive(), gen::Pythia6Service::closeSLHA(), fGluinoHadronsEnabled, lhef::LHERunInfo::findHeader(), fJetMatching, fPy6Service, fStopHadronsEnabled, gen::FortranCallback::getInstance(), gen::JetMatching::init(), gen::BaseHadronizer::lheRunInfo(), gen::pyglrhad_(), gen::pystrhad_(), gen::FortranCallback::setLHERunInfo(), gen::Pythia6Service::setPYUPDAParams(), and gen::Pythia6Service::setSLHAFromHeader().
{
Pythia6Service::InstanceWrapper guard(fPy6Service); // grab Py6 instance
// note: CSA mode is NOT supposed to work with external partons !!!
// fPy6Service->setGeneralParams();
fPy6Service->setPYUPDAParams(false);
FortranCallback::getInstance()->setLHERunInfo( lheRunInfo() );
if ( fStopHadronsEnabled )
{
// overwrite mstp(111), no matter what
call_pygive("MSTP(111)=0");
pystrhad_();
call_pygive("MWID(302)=0"); // I don't know if this is specific to processing ME/LHE only,
call_pygive("MDCY(302,1)=0"); // or this should also be the case for full event...
// anyway, this comes from experience of processing MG events
}
if ( fGluinoHadronsEnabled )
{
// overwrite mstp(111), no matter what
call_pygive("MSTP(111)=0");
pyglrhad_();
//call_pygive("MWID(309)=0");
//call_pygive("MDCY(309,1)=0");
}
call_pyinit("USER", "", "", 0.0);
fPy6Service->setPYUPDAParams(true);
std::vector<std::string> slha = lheRunInfo()->findHeader("slha");
if (!slha.empty()) {
edm::LogInfo("Generator|LHEInterface")
<< "Pythia6 hadronisation found an SLHA header, "
<< "will be passed on to Pythia." << std::endl;
fPy6Service->setSLHAFromHeader(slha);
fPy6Service->closeSLHA();
}
if ( fJetMatching )
{
fJetMatching->init( lheRunInfo() );
// FIXME: the jet matching routine might not be interested in PS callback
call_pygive("MSTP(143)=1");
}
return true;
}
| bool gen::Pythia6Hadronizer::initializeForInternalPartons | ( | ) |
Definition at line 794 of file Pythia6Hadronizer.cc.
References gen::call_pygive(), gen::Pythia6Service::closeSLHA(), edm::errors::Configuration, ElectronPositron, ElectronProton, Exception, fBeam1PZ, fBeam2PZ, fCOMEnergy, fGluinoHadronsEnabled, fInitialState, fPy6Service, fStopHadronsEnabled, PositronProton, PP, PPbar, gen::pyglrhad_(), gen::pystrhad_(), and gen::Pythia6Service::setPYUPDAParams().
{
Pythia6Service::InstanceWrapper guard(fPy6Service); // grab Py6 instance
fPy6Service->setPYUPDAParams(false);
if ( fStopHadronsEnabled )
{
// overwrite mstp(111), no matter what
call_pygive("MSTP(111)=0");
pystrhad_();
}
if ( fGluinoHadronsEnabled )
{
// overwrite mstp(111), no matter what
call_pygive("MSTP(111)=0");
pyglrhad_();
}
if ( fInitialState == PP ) // default
{
call_pyinit("CMS", "p", "p", fCOMEnergy);
}
else if ( fInitialState == PPbar )
{
call_pyinit( "CMS", "p", "pbar", fCOMEnergy);
}
else if ( fInitialState == ElectronPositron )
{
call_pyinit( "CMS", "e+", "e-", fCOMEnergy );
}
else if ( fInitialState == ElectronProton)
{
// set p(1,i) & p(2,i) for the beams in pyjets !
pyjets.p[0][0] = 0.;
pyjets.p[1][0] = 0.;
pyjets.p[2][0] = fBeam1PZ;
pyjets.p[0][1] = 0.;
pyjets.p[1][1] = 0.;
pyjets.p[2][1] = fBeam2PZ;
// call "3mon" frame & 0.0 win
call_pyinit( "3mom", "e-", "p", 0.0 );
}
else if ( fInitialState == PositronProton)
{
// set p(1,i) & p(2,i) for the beams in pyjets !
pyjets.p[0][0] = 0.;
pyjets.p[1][0] = 0.;
pyjets.p[2][0] = fBeam1PZ;
pyjets.p[0][1] = 0.;
pyjets.p[1][1] = 0.;
pyjets.p[2][1] = fBeam2PZ;
// call "3mon" frame & 0.0 win
call_pyinit( "3mom", "e+", "p", 0.0 );
}
else
{
// throw on unknown initial state !
throw edm::Exception(edm::errors::Configuration,"Pythia6Interface")
<<" UNKNOWN INITIAL STATE. \n The allowed initial states are: PP, PPbar, ElectronPositron, ElectronProton, and PositronProton \n";
}
fPy6Service->setPYUPDAParams(true);
fPy6Service->closeSLHA();
return true;
}
| bool gen::Pythia6Hadronizer::readSettings | ( | int | key | ) |
Definition at line 727 of file Pythia6Hadronizer.cc.
References fPy6Service, gen::Pythia6Service::setCSAParams(), gen::Pythia6Service::setGeneralParams(), and gen::Pythia6Service::setSLHAParams().
{
Pythia6Service::InstanceWrapper guard(fPy6Service); // grab Py6 instance
fPy6Service->setGeneralParams();
if ( key == 0 ) fPy6Service->setCSAParams();
fPy6Service->setSLHAParams();
return true;
}
| bool gen::Pythia6Hadronizer::residualDecay | ( | ) |
Definition at line 547 of file Pythia6Hadronizer.cc.
References gen::BaseHadronizer::event(), fPy6Service, configurableAnalysis::GenParticle, i, dbtoconf::parent, gen::pycomp_(), gen::pydecy_(), gen::pyjets_local, and ntuplemaker::status.
{
// event().get()->print();
Pythia6Service::InstanceWrapper guard(fPy6Service); // grab Py6 instance
// int nDocLines = pypars.msti[3];
int NPartsBeforeDecays = pyjets_local.n ;
int NPartsAfterDecays = event().get()->particles_size();
int barcode = NPartsAfterDecays;
// JVY: well, in principle, it's not a 100% fair to go up to NPartsBeforeDecays,
// because Photos will attach gamma's to existing vertexes, i.e. in the middle
// of the event rather than at the end; but this will only shift poiters down,
// so we'll be going again over a few "original" particle...
// in the alternative, we may go all the way up to the beginning of the event
// and re-check if anything remains to decay, that's fine even if it'll take
// some extra CPU...
for ( int ipart=NPartsAfterDecays; ipart>NPartsBeforeDecays; ipart-- )
{
HepMC::GenParticle* part = event().get()->barcode_to_particle( ipart );
int status = part->status();
if ( status != 1 ) continue; // check only "stable" particles,
// as some undecayed may still be marked as such
int pdgid = part->pdg_id();
int py6ptr = pycomp_( pdgid );
if ( pydat3.mdcy[0][py6ptr-1] != 1 ) continue; // particle is not expected to decay
int py6id = HepPID::translatePDTtoPythia( pdgid );
//
// first, will need to zero out, then fill up PYJETS
// I better do it directly (by hands) rather than via py1ent
// - to avoid (additional) mass smearing
//
if ( part->momentum().t() <= part->generated_mass() )
{
continue ; // e==m --> 0-momentum, nothing to decay...
}
else
{
pyjets.n = 0;
for ( int i=0; i<5; i++ )
{
pyjets.k[i][0] = 0;
pyjets.p[i][0] = 0.;
pyjets.v[i][0] = 0.;
}
pyjets.k[0][0] = 1;
pyjets.k[1][0] = py6id;
pyjets.p[4][0] = part->generated_mass();
pyjets.p[3][0] = part->momentum().t();
pyjets.p[0][0] = part->momentum().x();
pyjets.p[1][0] = part->momentum().y();
pyjets.p[2][0] = part->momentum().z();
HepMC::GenVertex* prod_vtx = part->production_vertex();
if ( !prod_vtx ) continue; // in principle, should never happen but...
pyjets.v[0][0] = prod_vtx->position().x();
pyjets.v[1][0] = prod_vtx->position().y();
pyjets.v[2][0] = prod_vtx->position().z();
pyjets.v[3][0] = prod_vtx->position().t();
pyjets.v[4][0] = 0.;
pyjets.n = 1;
pyjets.npad = pyjets_local.npad;
}
// now call Py6 decay routine
//
int parent = 1; // since we always pass to Py6 a single particle
pydecy_( parent );
// now attach decay products to mother
//
for ( int iprt1=1; iprt1<pyjets.n; iprt1++ )
{
part->set_status( 2 );
HepMC::GenVertex* DecVtx = new HepMC::GenVertex( HepMC::FourVector(pyjets.v[0][iprt1],
pyjets.v[1][iprt1],
pyjets.v[2][iprt1],
pyjets.v[3][iprt1]) );
DecVtx->add_particle_in( part ); // this will cleanup end_vertex if exists, replace with the new one
// I presume (vtx) barcode will be given automatically
HepMC::FourVector pmom(pyjets.p[0][iprt1],pyjets.p[1][iprt1],
pyjets.p[2][iprt1],pyjets.p[3][iprt1] );
int dstatus = 0;
if ( pyjets.k[0][iprt1] >= 1 && pyjets.k[0][iprt1] <= 10 )
{
dstatus = 1;
}
else if ( pyjets.k[0][iprt1] >= 11 && pyjets.k[0][iprt1] <= 20 )
{
dstatus = 2;
}
else if ( pyjets.k[0][iprt1] >= 21 && pyjets.k[0][iprt1] <= 30 )
{
dstatus = 3;
}
else if ( pyjets.k[0][iprt1] >= 31 && pyjets.k[0][iprt1] <= 100 )
{
dstatus = pyjets.k[0][iprt1];
}
HepMC::GenParticle* daughter = new HepMC::GenParticle(pmom,
HepPID::translatePythiatoPDT( pyjets.k[1][iprt1] ),
dstatus);
barcode++;
daughter->suggest_barcode( barcode );
DecVtx->add_particle_out( daughter );
int iprt2;
for ( iprt2=iprt1+1; iprt2<pyjets.n; iprt2++ ) // the pointer is shifted by -1, c++ style
{
if ( pyjets.k[2][iprt2] != parent )
{
parent = pyjets.k[2][iprt2];
break; // another parent particle; reset & break the loop
}
HepMC::FourVector pmomN(pyjets.p[0][iprt2],pyjets.p[1][iprt2],
pyjets.p[2][iprt2],pyjets.p[3][iprt2] );
dstatus = 0;
if ( pyjets.k[0][iprt2] >= 1 && pyjets.k[0][iprt2] <= 10 )
{
dstatus = 1;
}
else if ( pyjets.k[0][iprt2] >= 11 && pyjets.k[0][iprt2] <= 20 )
{
dstatus = 2;
}
else if ( pyjets.k[0][iprt2] >= 21 && pyjets.k[0][iprt2] <= 30 )
{
dstatus = 3;
}
else if ( pyjets.k[0][iprt2] >= 31 && pyjets.k[0][iprt2] <= 100 )
{
dstatus = pyjets.k[0][iprt2];
}
HepMC::GenParticle* daughterN = new HepMC::GenParticle(pmomN,
HepPID::translatePythiatoPDT( pyjets.k[1][iprt2] ),
dstatus);
barcode++;
daughterN->suggest_barcode( barcode );
DecVtx->add_particle_out( daughterN );
}
iprt1 = iprt2-1; // reset counter such that it doesn't go over the same child more than once
// don't forget to offset back into c++ counting, as it's already +1 forward
event().get()->add_vertex( DecVtx );
}
}
// now restore the very original Py6 event record
//
if ( pyjets_local.n != pyjets.n )
{
// restore pyjets to its state as it was before external decays -
// might have been jammed by action above or by py1ent calls in EvtGen
pyjets.n = pyjets_local.n;
pyjets.npad = pyjets_local.npad;
for ( int ip=0; ip<pyjets_local.n; ip++ )
{
for ( int i=0; i<5; i++ )
{
pyjets.k[i][ip] = pyjets_local.k[i][ip];
pyjets.p[i][ip] = pyjets_local.p[i][ip];
pyjets.v[i][ip] = pyjets_local.v[i][ip];
}
}
}
return true;
}
| void gen::Pythia6Hadronizer::statistics | ( | ) |
Definition at line 997 of file Pythia6Hadronizer.cc.
References fwrapper::cs, pypars, gen::BaseHadronizer::runInfo(), and GenRunInfoProduct::setInternalXSec().
{
if ( !runInfo().internalXSec() )
{
// set xsec if not already done (e.g. from LHE cross section collector)
double cs = pypars.pari[0]; // cross section in mb
cs *= 1.0e9; // translate to pb (CMS/Gen "convention" as of May 2009)
runInfo().setInternalXSec( cs );
// FIXME: can we get the xsec statistical error somewhere?
}
call_pystat(1);
return;
}
double gen::Pythia6Hadronizer::fBeam1PZ [private] |
Definition at line 85 of file Pythia6Hadronizer.h.
Referenced by initializeForInternalPartons(), and Pythia6Hadronizer().
double gen::Pythia6Hadronizer::fBeam2PZ [private] |
Definition at line 86 of file Pythia6Hadronizer.h.
Referenced by initializeForInternalPartons(), and Pythia6Hadronizer().
double gen::Pythia6Hadronizer::fCOMEnergy [private] |
Definition at line 83 of file Pythia6Hadronizer.h.
Referenced by initializeForInternalPartons().
bool gen::Pythia6Hadronizer::fConvertToPDG [private] |
Definition at line 110 of file Pythia6Hadronizer.h.
Referenced by finalizeEvent(), and Pythia6Hadronizer().
bool gen::Pythia6Hadronizer::fDisplayPythiaBanner [private] |
Definition at line 96 of file Pythia6Hadronizer.h.
Referenced by Pythia6Hadronizer().
bool gen::Pythia6Hadronizer::fDisplayPythiaCards [private] |
Definition at line 97 of file Pythia6Hadronizer.h.
Referenced by finalizeEvent(), and Pythia6Hadronizer().
bool gen::Pythia6Hadronizer::fGluinoHadronsEnabled [private] |
Definition at line 104 of file Pythia6Hadronizer.h.
Referenced by generatePartonsAndHadronize(), hadronize(), initializeForExternalPartons(), initializeForInternalPartons(), and Pythia6Hadronizer().
bool gen::Pythia6Hadronizer::fHepMCVerbosity [private] |
Definition at line 90 of file Pythia6Hadronizer.h.
Referenced by finalizeEvent().
bool gen::Pythia6Hadronizer::fImposeProperTime [private] |
Definition at line 107 of file Pythia6Hadronizer.h.
Referenced by finalizeEvent(), and Pythia6Hadronizer().
int gen::Pythia6Hadronizer::fInitialState [private] |
Definition at line 82 of file Pythia6Hadronizer.h.
Referenced by initializeForInternalPartons(), and Pythia6Hadronizer().
JetMatching * gen::Pythia6Hadronizer::fJetMatching = 0 [static, private] |
Definition at line 88 of file Pythia6Hadronizer.h.
Referenced by getJetMatching(), hadronize(), initializeForExternalPartons(), Pythia6Hadronizer(), and ~Pythia6Hadronizer().
unsigned int gen::Pythia6Hadronizer::fMaxEventsToPrint [private] |
Definition at line 91 of file Pythia6Hadronizer.h.
Referenced by finalizeEvent().
Definition at line 74 of file Pythia6Hadronizer.h.
Referenced by generatePartonsAndHadronize(), hadronize(), imposeProperTime(), initializeForExternalPartons(), initializeForInternalPartons(), readSettings(), residualDecay(), and ~Pythia6Hadronizer().
unsigned int gen::Pythia6Hadronizer::fPythiaListVerbosity [private] |
Definition at line 95 of file Pythia6Hadronizer.h.
Referenced by finalizeEvent().
bool gen::Pythia6Hadronizer::fStopHadronsEnabled [private] |
Definition at line 103 of file Pythia6Hadronizer.h.
Referenced by generatePartonsAndHadronize(), hadronize(), initializeForExternalPartons(), initializeForInternalPartons(), and Pythia6Hadronizer().
1.7.3