#include <TauolaInterface.h>
Public Member Functions | |
HepMC::GenEvent * | decay (HepMC::GenEvent *) |
void | disablePolarization () |
void | enablePolarization () |
void | init (const edm::EventSetup &) |
const std::vector< int > & | operatesOnParticles () |
void | setPSet (const edm::ParameterSet &) |
void | statistics () |
~TauolaInterface () | |
Static Public Member Functions | |
static TauolaInterface * | getInstance () |
Private Member Functions | |
void | decodeMDTAU (int) |
float | flat () |
void | selectDecayByMDTAU () |
int | selectHadronic () |
int | selectLeptonic () |
TauolaInterface () | |
Private Attributes | |
std::vector< int > | fHadronModes |
bool | fIsInitialized |
std::vector< int > | fLeptonModes |
int | fMDTAU |
std::vector< int > | fPDGs |
edm::ESHandle < HepPDT::ParticleDataTable > | fPDGTable |
bool | fPolarization |
edm::ParameterSet * | fPSet |
CLHEP::HepRandomEngine * | fRandomEngine |
std::vector< double > | fScaledHadronBrRatios |
std::vector< double > | fScaledLeptonBrRatios |
bool | fSelectDecayByEvent |
Static Private Attributes | |
static TauolaInterface * | fInstance = 0 |
Friends | |
void | gen::ranmar_ (float *rvec, int *lenv) |
double | gen::TauolappInterface_RandGetter () |
Definition at line 64 of file TauolaInterface.h.
TauolaInterface::~TauolaInterface | ( | ) |
TauolaInterface::TauolaInterface | ( | ) | [private] |
Definition at line 323 of file TauolaInterface.cc.
References Exception, fRandomEngine, and edm::Service< T >::isAvailable().
Referenced by getInstance().
: fPolarization(false), fPSet(0), fIsInitialized(false), fMDTAU(-1), fSelectDecayByEvent(false) { Service<RandomNumberGenerator> rng; if(!rng.isAvailable()) { throw cms::Exception("Configuration") << "The RandomNumberProducer module requires the RandomNumberGeneratorService\n" "which appears to be absent. Please add that service to your configuration\n" "or remove the modules that require it." << std::endl; } fRandomEngine = &rng->getEngine(); }
HepMC::GenEvent * TauolaInterface::decay | ( | HepMC::GenEvent * | evt | ) |
Definition at line 499 of file TauolaInterface.cc.
References abs, fIsInitialized, fPDGTable, fSelectDecayByEvent, configurableAnalysis::GenParticle, funct::log(), p1, RecoTau_DiTaus_pt_20-420_cfg::ParticleID, gen::ranmar_(), and selectDecayByMDTAU().
Referenced by gen::ExternalDecayDriver::decay(), and ParticleReplacerClass::produce().
{ if ( !fIsInitialized ) return evt; int NPartBefore = evt->particles_size(); int NVtxBefore = evt->vertices_size(); // what do we do if Hep::GenEvent size is larger than 10K ??? // Tauola (& Photos, BTW) can only handle up to 10K via HEPEVT, // and in case of CMS, it's only up to 4K !!! // // if ( NPartBefore > 10000 ) return evt; // // override decay mode if needs be if ( fSelectDecayByEvent ) { selectDecayByMDTAU(); } //construct tmp TAUOLA event // TauolaHepMCEvent * t_event = new TauolaHepMCEvent(evt); // another option: if one lets Pythia or another master gen to decay taus, // we have to undecay them first // t_event->undecayTaus(); // run Tauola on the tmp event - HepMC::GenEvernt will be MODIFIED !!! // t_event->decayTaus(); // delet tmp Tauola event // delete t_event; // do we also need to apply the lifetime and vtx position shift ??? // (see TauolaInterface, for example) // // NOTE: the procedure ASSYMES that vertex barcoding is COUNTIUOUS/SEQUENTIAL, // and that the abs(barcode) corresponds to vertex "plain indexing" // for ( int iv=NVtxBefore+1; iv<=evt->vertices_size(); iv++ ) { HepMC::GenVertex* GenVtx = evt->barcode_to_vertex(-iv); HepMC::GenParticle* GenPart = *(GenVtx->particles_in_const_begin()); HepMC::GenVertex* ProdVtx = GenPart->production_vertex(); HepMC::FourVector PMom = GenPart->momentum(); double mass = GenPart->generated_mass(); const HepPDT::ParticleData* PData = fPDGTable->particle(HepPDT::ParticleID(abs(GenPart->pdg_id()))) ; double lifetime = PData->lifetime().value(); float prob = 0.; int length=1; ranmar_(&prob,&length); double ct = -lifetime * std::log(prob); double VxDec = GenVtx->position().x(); VxDec += ct * (PMom.px()/mass); VxDec += ProdVtx->position().x(); double VyDec = GenVtx->position().y(); VyDec += ct * (PMom.py()/mass); VyDec += ProdVtx->position().y(); double VzDec = GenVtx->position().z(); VzDec += ct * (PMom.pz()/mass); VzDec += ProdVtx->position().z(); double VtDec = GenVtx->position().t(); VtDec += ct * (PMom.e()/mass); VtDec += ProdVtx->position().t(); GenVtx->set_position( HepMC::FourVector(VxDec,VyDec,VzDec,VtDec) ); // // now find decay products with funky barcode, weed out and replace with clones of sensible barcode // we can NOT change the barcode while iterating, because iterators do depend on the barcoding // thus we have to take a 2-step procedure // std::vector<int> BCodes; BCodes.clear(); for (HepMC::GenVertex::particle_iterator pitr= GenVtx->particles_begin(HepMC::children); pitr != GenVtx->particles_end(HepMC::children); ++pitr) { if ( (*pitr)->barcode() > 10000 ) { BCodes.push_back( (*pitr)->barcode() ); } } if ( BCodes.size() > 0 ) { for ( size_t ibc=0; ibc<BCodes.size(); ibc++ ) { HepMC::GenParticle* p1 = evt->barcode_to_particle( BCodes[ibc] ); int nbc = p1->barcode() - 10000 + NPartBefore; p1->suggest_barcode( nbc ); } } } return evt; }
void TauolaInterface::decodeMDTAU | ( | int | mdtau | ) | [private] |
Definition at line 604 of file TauolaInterface.cc.
References fHadronModes, fLeptonModes, fScaledHadronBrRatios, fScaledLeptonBrRatios, fSelectDecayByEvent, i, and taubra_.
Referenced by init().
{ // Note-1: // I have to hack the common block directly because set<...>DecayMode(...) // only changes it in the Tauola++ instance but does NOT passes it over // to the Fortran core - this it does only one, via initialize() stuff... // // So I'll do both ways of settings, just for consistency... // but I probably need to communicate it to the Tauola(++) team... // // Note-2: // originally, the 1xx settings are meant for tau's from hard event, // and the 2xx settings are for any tau in the event record; // // later one, we'll have to take this into account... // but first I'll have to sort out what happens in the 1xx case // to tau's coming outside of hard event (if any in the record) // if ( mdtau == 101 || mdtau == 201 ) { // override with electron mode for both tau's // jaki_.jak1 = 1; jaki_.jak2 = 1; Tauola::setSameParticleDecayMode( 1 ) ; Tauola::setOppositeParticleDecayMode( 1 ) ; return; } if ( mdtau == 102 || mdtau == 202 ) { // override with muon mode for both tau's // jaki_.jak1 = 2; jaki_.jak2 = 2; Tauola::setSameParticleDecayMode( 2 ) ; Tauola::setOppositeParticleDecayMode( 2 ) ; return; } if ( mdtau == 111 || mdtau == 211 ) { // override with electron mode for 1st tau // and any mode for 2nd tau // jaki_.jak1 = 1; jaki_.jak2 = 0; Tauola::setSameParticleDecayMode( 1 ) ; Tauola::setOppositeParticleDecayMode( 0 ) ; return; } if ( mdtau == 112 || mdtau == 212 ) { // override with muon mode for the 1st tau // and any mode for the 2nd tau // jaki_.jak1 = 2; jaki_.jak2 = 0; Tauola::setSameParticleDecayMode( 2 ) ; Tauola::setOppositeParticleDecayMode( 0 ) ; return; } if ( mdtau == 121 || mdtau == 221 ) { // override with any mode for the 1st tau // and electron mode for the 2nd tau // jaki_.jak1 = 0; jaki_.jak2 = 1; Tauola::setSameParticleDecayMode( 0 ) ; Tauola::setOppositeParticleDecayMode( 1 ) ; return; } if ( mdtau == 122 || mdtau == 222 ) { // override with any mode for the 1st tau // and muon mode for the 2nd tau // jaki_.jak1 = 0; jaki_.jak2 = 2; Tauola::setSameParticleDecayMode( 0 ) ; Tauola::setOppositeParticleDecayMode( 2 ) ; return; } if ( mdtau == 140 || mdtau == 240 ) { // override with pi+/- nutau mode for both tau's // jaki_.jak1 = 3; jaki_.jak2 = 3; Tauola::setSameParticleDecayMode( 3 ) ; Tauola::setOppositeParticleDecayMode( 3 ) ; return; } if ( mdtau == 141 || mdtau == 241 ) { // override with pi+/- nutau mode for the 1st tau // and any mode for the 2nd tau // jaki_.jak1 = 3; jaki_.jak2 = 0; Tauola::setSameParticleDecayMode( 3 ) ; Tauola::setOppositeParticleDecayMode( 0 ) ; return; } if ( mdtau == 142 || mdtau == 242 ) { // override with any mode for the 1st tau // and pi+/- nutau mode for 2nd tau // jaki_.jak1 = 0; jaki_.jak2 = 3; Tauola::setSameParticleDecayMode( 0 ) ; Tauola::setOppositeParticleDecayMode( 3 ) ; return; } // OK, we come here for semi-inclusive modes // // First of all, leptons and hadron modes sums // // re-scale branching ratios, just in case... // double sumBra = 0; // the number of decay modes is hardcoded at 22 because that's what it is right now in Tauola // in the future, perhaps an asscess method would be useful - communicate to Tauola team... // for ( int i=0; i<22; i++ ) { sumBra += taubra_.gamprt[i]; } if ( sumBra == 0. ) return ; // perhaps need to throw ? for ( int i=0; i<22; i++ ) { double newBra = taubra_.gamprt[i] / sumBra; Tauola::setTauBr( i+1, newBra ); } sumBra = 1.0; double sumLeptonBra = taubra_.gamprt[0] + taubra_.gamprt[1]; double sumHadronBra = sumBra - sumLeptonBra; for ( int i=0; i<2; i++ ) { fLeptonModes.push_back( i+1 ); fScaledLeptonBrRatios.push_back( (taubra_.gamprt[i]/sumLeptonBra) ); } for ( int i=2; i<22; i++ ) { fHadronModes.push_back( i+1 ); fScaledHadronBrRatios.push_back( (taubra_.gamprt[i]/sumHadronBra) ); } fSelectDecayByEvent = true; return; }
void gen::TauolaInterface::disablePolarization | ( | ) | [inline] |
Definition at line 75 of file TauolaInterface.h.
References fPolarization.
{ fPolarization = false; return; }
void gen::TauolaInterface::enablePolarization | ( | ) | [inline] |
Definition at line 74 of file TauolaInterface.h.
References fPolarization.
{ fPolarization = true; return; }
float TauolaInterface::flat | ( | void | ) | [private] |
Definition at line 476 of file TauolaInterface.cc.
References Exception, fIsInitialized, fPSet, and fRandomEngine.
Referenced by gen::ranmar_(), selectLeptonic(), and gen::TauolappInterface_RandGetter().
{ if ( !fPSet ) { // throw throw cms::Exception("TauolaInterfaceError") << "Attempt to run random number generator of un-initialized Tauola\n" << std::endl; } if ( !fIsInitialized ) { // throw throw cms::Exception("TauolaInterfaceError") << "Attempt to run random number generator of un-initialized Tauola\n" << std::endl; } return fRandomEngine->flat(); }
TauolaInterface * TauolaInterface::getInstance | ( | ) | [static] |
Definition at line 370 of file TauolaInterface.cc.
References fInstance, and TauolaInterface().
Referenced by gen::ExternalDecayDriver::ExternalDecayDriver(), and gen::TauolappInterface_RandGetter().
{ if ( fInstance == 0 ) fInstance = new TauolaInterface() ; return fInstance; }
void TauolaInterface::init | ( | const edm::EventSetup & | es | ) |
Definition at line 403 of file TauolaInterface.cc.
References decodeMDTAU(), Exception, fIsInitialized, fMDTAU, fPDGs, fPDGTable, fPolarization, fPSet, edm::EventSetup::getData(), edm::ParameterSet::getParameter(), and gen::TauolappInterface_RandGetter().
Referenced by ParticleReplacerClass::beginRun(), and gen::ExternalDecayDriver::init().
{ if ( fIsInitialized ) return; // do init only once if ( fPSet == 0 ) { throw cms::Exception("TauolaInterfaceError") << "Attempt to initialize Tauola with an empty ParameterSet\n" << std::endl; } fIsInitialized = true; es.getData( fPDGTable ) ; Tauola::setDecayingParticle(15); // --> ??? Tauola::setRadiation(false); // polarization switch // // fPolarization = fPSet->getParameter<bool>("UseTauolaPolarization") ? 1 : 0 ; fPolarization = fPSet->getParameter<bool>("UseTauolaPolarization"); // read tau decay mode switches // ParameterSet cards = fPSet->getParameter< ParameterSet >("InputCards"); fMDTAU = cards.getParameter< int >( "mdtau" ); if ( fMDTAU == 0 || fMDTAU == 1 ) { Tauola::setSameParticleDecayMode( cards.getParameter< int >( "pjak1" ) ) ; Tauola::setOppositeParticleDecayMode( cards.getParameter< int >( "pjak2" ) ) ; } Tauola::setTauLifetime(0.0); Tauola::spin_correlation.setAll(fPolarization); // some more options, copied over from an example // - maybe will use later... // //Tauola::setEtaK0sPi(0,0,0); // switches to decay eta K0_S and pi0 1/0 on/off. // // // const HepPDT::ParticleData* // PData = fPDGTable->particle(HepPDT::ParticleID( abs(Tauola::getDecayingParticle()) )) ; // double lifetime = PData->lifetime().value(); // Tauola::setTauLifetime( lifetime ); fPDGs.push_back( Tauola::getDecayingParticle() ); Tauola::setRandomGenerator(&gen::TauolappInterface_RandGetter); Tauola::initialize(); Tauola::spin_correlation.setAll(fPolarization);// Tauola switches this on during Tauola::initialise(); so we add this here to keep it on/off // override decay modes if needs be // // we have to do it AFTER init because otherwises branching ratios are NOT filled in // if ( fMDTAU != 0 && fMDTAU != 1 ) { decodeMDTAU( fMDTAU ); } Log::LogWarning(false); return; }
const std::vector<int>& gen::TauolaInterface::operatesOnParticles | ( | ) | [inline] |
Definition at line 77 of file TauolaInterface.h.
References fPDGs.
Referenced by gen::ExternalDecayDriver::init().
{ return fPDGs; }
void TauolaInterface::selectDecayByMDTAU | ( | ) | [private] |
Definition at line 774 of file TauolaInterface.cc.
References fMDTAU, alignBH_cfg::mode, selectHadronic(), and selectLeptonic().
Referenced by decay().
{ if ( fMDTAU == 100 || fMDTAU == 200 ) { int mode = selectLeptonic(); jaki_.jak1 = mode; Tauola::setSameParticleDecayMode( mode ); mode = selectLeptonic(); jaki_.jak2 = mode; Tauola::setOppositeParticleDecayMode( mode ); return ; } int modeL = selectLeptonic(); int modeH = selectHadronic(); if ( fMDTAU == 110 || fMDTAU == 210 ) { jaki_.jak1 = modeL; jaki_.jak2 = 0; Tauola::setSameParticleDecayMode( modeL ); Tauola::setOppositeParticleDecayMode( 0 ); return ; } if ( fMDTAU == 120 || fMDTAU == 22 ) { jaki_.jak1 = 0; jaki_.jak2 = modeL; Tauola::setSameParticleDecayMode( 0 ); Tauola::setOppositeParticleDecayMode( modeL ); return; } if ( fMDTAU == 114 || fMDTAU == 214 ) { jaki_.jak1 = modeL; jaki_.jak2 = modeH; Tauola::setSameParticleDecayMode( modeL ); Tauola::setOppositeParticleDecayMode( modeH ); return; } if ( fMDTAU == 124 || fMDTAU == 224 ) { jaki_.jak1 = modeH; jaki_.jak2 = modeL; Tauola::setSameParticleDecayMode( modeH ); Tauola::setOppositeParticleDecayMode( modeL ); return; } if ( fMDTAU == 115 || fMDTAU == 215 ) { jaki_.jak1 = 1; jaki_.jak2 = modeH; Tauola::setSameParticleDecayMode( 1 ); Tauola::setOppositeParticleDecayMode( modeH ); return; } if ( fMDTAU == 125 || fMDTAU == 225 ) { jaki_.jak1 = modeH; jaki_.jak2 = 1; Tauola::setSameParticleDecayMode( modeH ); Tauola::setOppositeParticleDecayMode( 1 ); return; } if ( fMDTAU == 116 || fMDTAU == 216 ) { jaki_.jak1 = 2; jaki_.jak2 = modeH; Tauola::setSameParticleDecayMode( 2 ); Tauola::setOppositeParticleDecayMode( modeH ); return; } if ( fMDTAU == 126 || fMDTAU == 226 ) { jaki_.jak1 = modeH; jaki_.jak2 = 2; Tauola::setSameParticleDecayMode( modeH ); Tauola::setOppositeParticleDecayMode( 2 ); return; } if ( fMDTAU == 130 || fMDTAU == 230 ) { jaki_.jak1 = modeH; jaki_.jak2 = selectHadronic(); Tauola::setSameParticleDecayMode( modeH ); Tauola::setOppositeParticleDecayMode( jaki_.jak2 ); return; } if ( fMDTAU == 131 || fMDTAU == 231 ) { jaki_.jak1 = modeH; jaki_.jak2 = 0; Tauola::setSameParticleDecayMode( modeH ); Tauola::setOppositeParticleDecayMode( 0 ); return; } if ( fMDTAU == 132 || fMDTAU == 232 ) { jaki_.jak1 = 0; jaki_.jak2 = modeH; Tauola::setSameParticleDecayMode( 0 ); Tauola::setOppositeParticleDecayMode( modeH ); return; } // unlikely that we get here on unknown mdtau // - there's a protection earlier // but if we do, just set defaults // probably need to spit a warning... // Tauola::setSameParticleDecayMode( 0 ); Tauola::setOppositeParticleDecayMode( 0 ); return; }
int TauolaInterface::selectHadronic | ( | ) | [private] |
Definition at line 921 of file TauolaInterface.cc.
References fHadronModes, fScaledHadronBrRatios, i, and gen::ranmar_().
Referenced by selectDecayByMDTAU().
{ float prob = 0.; int len = 1; ranmar_(&prob,&len); double sumBra = fScaledHadronBrRatios[0]; if ( prob > 0. && prob <= sumBra ) { return fHadronModes[0]; } else { int NN = fScaledHadronBrRatios.size(); for ( int i=1; i<NN; i++ ) { if ( prob > sumBra && prob <= (sumBra+fScaledHadronBrRatios[i]) ) { return fHadronModes[i]; } sumBra += fScaledHadronBrRatios[i]; } } return 0; }
int TauolaInterface::selectLeptonic | ( | ) | [private] |
Definition at line 904 of file TauolaInterface.cc.
References flat(), and fScaledLeptonBrRatios.
Referenced by selectDecayByMDTAU().
{ float prob = flat(); if ( prob > 0. && prob <= fScaledLeptonBrRatios[0] ) { return 1; } else if ( prob > fScaledLeptonBrRatios[1] && prob <=1. ) { return 2; } return 0; }
void TauolaInterface::setPSet | ( | const edm::ParameterSet & | pset | ) |
Definition at line 387 of file TauolaInterface.cc.
References Exception, and fPSet.
Referenced by gen::ExternalDecayDriver::ExternalDecayDriver(), ParticleReplacerClass::ParticleReplacerClass(), and ParticleReplacerParticleGun::ParticleReplacerParticleGun().
{ if ( fPSet != 0 ) { throw cms::Exception("TauolaInterfaceError") << "Attempt to override Tauola an existing ParameterSet\n" << std::endl; } fPSet = new ParameterSet(pset); return; }
void TauolaInterface::statistics | ( | ) |
Definition at line 599 of file TauolaInterface.cc.
Referenced by ParticleReplacerClass::endJob(), and gen::ExternalDecayDriver::statistics().
{
return;
}
void gen::ranmar_ | ( | float * | rvec, |
int * | lenv | ||
) | [friend] |
double gen::TauolappInterface_RandGetter | ( | ) | [friend] |
std::vector<int> gen::TauolaInterface::fHadronModes [private] |
Definition at line 107 of file TauolaInterface.h.
Referenced by decodeMDTAU(), and selectHadronic().
TauolaInterface * TauolaInterface::fInstance = 0 [static, private] |
Definition at line 111 of file TauolaInterface.h.
Referenced by getInstance(), and ~TauolaInterface().
bool gen::TauolaInterface::fIsInitialized [private] |
Definition at line 102 of file TauolaInterface.h.
std::vector<int> gen::TauolaInterface::fLeptonModes [private] |
Definition at line 106 of file TauolaInterface.h.
Referenced by decodeMDTAU().
int gen::TauolaInterface::fMDTAU [private] |
Definition at line 104 of file TauolaInterface.h.
Referenced by init(), and selectDecayByMDTAU().
std::vector<int> gen::TauolaInterface::fPDGs [private] |
Definition at line 98 of file TauolaInterface.h.
Referenced by init(), and operatesOnParticles().
Definition at line 100 of file TauolaInterface.h.
bool gen::TauolaInterface::fPolarization [private] |
Definition at line 99 of file TauolaInterface.h.
Referenced by disablePolarization(), enablePolarization(), and init().
edm::ParameterSet* gen::TauolaInterface::fPSet [private] |
Definition at line 101 of file TauolaInterface.h.
Referenced by flat(), init(), setPSet(), and ~TauolaInterface().
CLHEP::HepRandomEngine* gen::TauolaInterface::fRandomEngine [private] |
Definition at line 97 of file TauolaInterface.h.
Referenced by flat(), and TauolaInterface().
std::vector<double> gen::TauolaInterface::fScaledHadronBrRatios [private] |
Definition at line 109 of file TauolaInterface.h.
Referenced by decodeMDTAU(), and selectHadronic().
std::vector<double> gen::TauolaInterface::fScaledLeptonBrRatios [private] |
Definition at line 108 of file TauolaInterface.h.
Referenced by decodeMDTAU(), and selectLeptonic().
bool gen::TauolaInterface::fSelectDecayByEvent [private] |
Definition at line 105 of file TauolaInterface.h.
Referenced by decay(), and decodeMDTAU().