edm::RandomtXiGunProducer Class Reference

#include <RandomtXiGunProducer.h>

Inheritance diagram for edm::RandomtXiGunProducer:

Public Member Functions
	RandomtXiGunProducer (const ParameterSet &)
	~RandomtXiGunProducer () override
Public Member Functions inherited from edm::BaseRandomtXiGunProducer
	BaseRandomtXiGunProducer (const ParameterSet &)
void	beginRun (const edm::Run &r, const edm::EventSetup &) override
void	endRun (const edm::Run &r, const edm::EventSetup &) override
void	endRunProduce (edm::Run &r, const edm::EventSetup &) override
	~BaseRandomtXiGunProducer () override
Public Member Functions inherited from edm::one::EDProducer< one::WatchRuns, EndRunProducer >
	EDProducer ()=default
SerialTaskQueue *	globalLuminosityBlocksQueue () final
SerialTaskQueue *	globalRunsQueue () final
bool	hasAbilityToProduceInBeginLumis () const final
bool	hasAbilityToProduceInBeginRuns () const final
bool	hasAbilityToProduceInEndLumis () const final
bool	hasAbilityToProduceInEndRuns () const final
bool	wantsGlobalLuminosityBlocks () const final
bool	wantsGlobalRuns () const final
Public Member Functions inherited from edm::one::EDProducerBase
	EDProducerBase ()
ModuleDescription const &	moduleDescription () const
bool	wantsStreamLuminosityBlocks () const
bool	wantsStreamRuns () const
	~EDProducerBase () override
Public Member Functions inherited from edm::ProducerBase
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)
std::vector< edm::ProductResolverIndex > const &	indiciesForPutProducts (BranchType iBranchType) const
	ProducerBase ()
std::vector< edm::ProductResolverIndex > const &	putTokenIndexToProductResolverIndex () const
std::vector< bool > const &	recordProvenanceList () const
void	registerProducts (ProducerBase *, ProductRegistry *, ModuleDescription const &)
std::function< void(BranchDescription const &)>	registrationCallback () const
	used by the fwk to register list of products More...
void	resolvePutIndicies (BranchType iBranchType, ModuleToResolverIndicies const &iIndicies, std::string const &moduleLabel)
TypeLabelList const &	typeLabelList () const
	used by the fwk to register the list of products of this module More...
	~ProducerBase () noexcept(false) override
Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const
void	convertCurrentProcessAlias (std::string const &processName)
	Convert "@currentProcess" in InputTag process names to the actual current process name. More...
	EDConsumerBase ()
	EDConsumerBase (EDConsumerBase &&)=default
	EDConsumerBase (EDConsumerBase const &)=delete
ESProxyIndex const *	esGetTokenIndices (edm::Transition iTrans) const
ProductResolverIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const
void	itemsMayGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const
void	itemsToGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const
std::vector< ProductResolverIndexAndSkipBit > const &	itemsToGetFrom (BranchType iType) const
void	labelsForToken (EDGetToken iToken, Labels &oLabels) const
void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const
EDConsumerBase &	operator= (EDConsumerBase &&)=default
EDConsumerBase const &	operator= (EDConsumerBase const &)=delete
bool	registeredToConsume (ProductResolverIndex, bool, BranchType) const
bool	registeredToConsumeMany (TypeID const &, BranchType) const
ProductResolverIndexAndSkipBit	uncheckedIndexFrom (EDGetToken) const
void	updateLookup (BranchType iBranchType, ProductResolverIndexHelper const &, bool iPrefetchMayGet)
void	updateLookup (eventsetup::ESRecordsToProxyIndices const &)
virtual	~EDConsumerBase () noexcept(false)

Protected Attributes
double	fMaxt
double	fMaxXi
double	fMint
double	fMinXi
Protected Attributes inherited from edm::BaseRandomtXiGunProducer
double	fECMS
HepMC::GenEvent *	fEvt
bool	fFireBackward
bool	fFireForward
bool	fLog_t
double	fMaxPhi
double	fMinPhi
std::vector< int >	fPartIDs
ESHandle< HepPDT::ParticleDataTable >	fPDGTable
double	fpEnergy
int	fVerbosity
const HepPDT::ParticleData *	PData

Private Member Functions
HepMC::FourVector	make_particle (double t, double Xi, double phi, int PartID, int direction)
double	Minimum_t (double xi)
void	produce (Event &e, const EventSetup &es) override

Additional Inherited Members
Public Types inherited from edm::one::EDProducerBase
typedef EDProducerBase	ModuleType
Public Types inherited from edm::ProducerBase
using	ModuleToResolverIndicies = std::unordered_multimap< std::string, std::tuple< edm::TypeID const *, const char *, edm::ProductResolverIndex > >
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList
Public Types inherited from edm::EDConsumerBase
typedef ProductLabels	Labels
Static Public Member Functions inherited from edm::one::EDProducerBase
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &descriptions)
Protected Member Functions inherited from edm::ProducerBase
template<class ProductType >
BranchAliasSetterT< ProductType >	produces ()
	declare what type of product will make and with which optional label More...
template<typename ProductType , BranchType B>
BranchAliasSetterT< ProductType >	produces ()
template<typename ProductType , Transition B>
BranchAliasSetterT< ProductType >	produces ()
BranchAliasSetter	produces (const TypeID &id, std::string instanceName=std::string(), bool recordProvenance=true)
template<BranchType B>
BranchAliasSetter	produces (const TypeID &id, std::string instanceName=std::string(), bool recordProvenance=true)
template<Transition B>
BranchAliasSetter	produces (const TypeID &id, std::string instanceName=std::string(), bool recordProvenance=true)
template<typename ProductType , Transition B>
BranchAliasSetterT< ProductType >	produces (std::string instanceName)
template<class ProductType >
BranchAliasSetterT< ProductType >	produces (std::string instanceName)
template<typename ProductType , BranchType B>
BranchAliasSetterT< ProductType >	produces (std::string instanceName)
ProducesCollector	producesCollector ()
Protected Member Functions inherited from edm::EDConsumerBase
EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)
template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)
ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...
template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()
void	consumesMany (const TypeToGet &id)
template<BranchType B>
void	consumesMany (const TypeToGet &id)
template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes ()
template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes (ESInputTag const &tag)
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)

Detailed Description

Definition at line 9 of file RandomtXiGunProducer.h.

Constructor & Destructor Documentation

RandomtXiGunProducer()

RandomtXiGunProducer::RandomtXiGunProducer

(

const ParameterSet &

pset

)

Definition at line 25 of file RandomtXiGunProducer.cc.

                                                                      : BaseRandomtXiGunProducer(pset) {
  ParameterSet defpset;
  edm::ParameterSet pgun_params = pset.getParameter<edm::ParameterSet>("PGunParameters");
 
  fMint = pgun_params.getParameter<double>("Mint");
  fMaxt = pgun_params.getParameter<double>("Maxt");
  fMinXi = pgun_params.getParameter<double>("MinXi");
  fMaxXi = pgun_params.getParameter<double>("MaxXi");
  fLog_t = pgun_params.getUntrackedParameter<bool>("Log_t", false);
 
  produces<HepMCProduct>("unsmeared");
  produces<GenEventInfoProduct>();
}

References edm::BaseRandomtXiGunProducer::fLog_t, fMaxt, fMaxXi, fMint, fMinXi, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), and muonDTDigis_cfi::pset.

~RandomtXiGunProducer()

RandomtXiGunProducer::~RandomtXiGunProducer ( )

override

Definition at line 39 of file RandomtXiGunProducer.cc.

                                            {
  // no need to cleanup GenEvent memory - done in HepMCProduct
}

Member Function Documentation

make_particle()

HepMC::FourVector RandomtXiGunProducer::make_particle ( double  t, double  Xi, double  phi, int  PartID, int  direction  )

private

Definition at line 141 of file RandomtXiGunProducer.cc.

                                                                                                              {
  double mass = PData->mass().value();
  double fpMom = sqrt(fpEnergy * fpEnergy - mass * mass);  // momentum of beam proton
  double sEnergy = (1.0 - Xi) * fpEnergy;                  // energy of scattered particle
  double sMom = sqrt(sEnergy * sEnergy - mass * mass);     // momentum of scattered particle
  double min_t = -2. * (fpMom * sMom - fpEnergy * sEnergy + mass * mass);
  if (t < min_t)
    t = min_t;  // protect against kinemactically forbiden region
  long double theta = acos((-t / 2. - mass * mass + fpEnergy * sEnergy) / (sMom * fpMom));  // use t = -t
 
  if (direction < 1)
    theta = acos(-1.) - theta;
 
  double px = sMom * cos(phi) * sin(theta);
  double py = sMom * sin(phi) * sin(theta);
  double pz = sMom * cos(theta);  // the direction is already set by the theta angle
  if (fVerbosity > 0)
    edm::LogInfo("RandomXiGunProducer")
        << "-----------------------------------------------------------------------------------------------------\n"
        << "Produced a proton with  phi : " << phi << " theta: " << theta << " t: " << t << " Xi: " << Xi << "\n"
        << "                         Px : " << px << " Py : " << py << " Pz : " << pz << "\n"
        << "                   direction: " << direction << "\n"
        << "-----------------------------------------------------------------------------------------------------"
        << std::endl;
 
  return HepMC::FourVector(px, py, pz, sEnergy);
}

References funct::cos(), edm::BaseRandomtXiGunProducer::fpEnergy, edm::BaseRandomtXiGunProducer::fVerbosity, EgHLTOffHistBins_cfi::mass, edm::BaseRandomtXiGunProducer::PData, phi, multPhiCorr_741_25nsDY_cfi::px, multPhiCorr_741_25nsDY_cfi::py, funct::sin(), mathSSE::sqrt(), OrderedSet::t, and theta().

Referenced by produce().

Minimum_t()

double edm::RandomtXiGunProducer::Minimum_t ( double  xi )

inlineprivate

Definition at line 18 of file RandomtXiGunProducer.h.

                                {
      double partE = fpEnergy * (1. - xi);
      double massSQ = pow(PData->mass().value(), 2);
      double partP = sqrt(partE * partE - massSQ);
      return -2. * (sqrt(fpEnergy * fpEnergy - massSQ) * partP - fpEnergy * partE + massSQ);
    };

References edm::BaseRandomtXiGunProducer::fpEnergy, edm::BaseRandomtXiGunProducer::PData, funct::pow(), mathSSE::sqrt(), and hybridSuperClusters_cfi::xi.

Referenced by produce().

produce()

void RandomtXiGunProducer::produce ( edm::Event &  e, const EventSetup &  es  )

overrideprivatevirtual

Implements edm::one::EDProducerBase.

Definition at line 43 of file RandomtXiGunProducer.cc.

                                                                       {
  edm::Service<edm::RandomNumberGenerator> rng;
  CLHEP::HepRandomEngine* engine = &rng->getEngine(e.streamID());
 
  if (fVerbosity > 0) {
    edm::LogInfo("RandomtXiGunProducer") << "Begin New Event Generation\n";
  }
  // event loop (well, another step in it...)
 
  // no need to clean up GenEvent memory - done in HepMCProduct
  //
 
  // here re-create fEvt (memory)
  //
  fEvt = new HepMC::GenEvent();
 
  // now actualy, cook up the event from PDGTable and gun parameters
  //
  // 1st, primary vertex
  //
  HepMC::GenVertex* Vtx = new HepMC::GenVertex(HepMC::FourVector(0., 0., 0.));
 
  // loop over particles
  //
  int barcode = 1;
  for (unsigned int ip = 0; ip < fPartIDs.size(); ++ip) {
    int PartID = fPartIDs[ip];
    //  t = -2*P*P'*(1-cos(theta)) -> t/(2*P*P')+1=cos(theta)
    // xi = 1 - P'/P  --> P'= (1-xi)*P
    //
    PData = fPDGTable->particle(HepPDT::ParticleID(abs(PartID)));
    if (!PData)
      exit(1);
    double t = 0;
    double Xi = 0;
    double phi = 0;
    if (fFireForward) {
      while (true) {
        Xi = CLHEP::RandFlat::shoot(engine, fMinXi, fMaxXi);
        double min_t = std::max(fMint, Minimum_t(Xi));
        double max_t = fMaxt;
        if (min_t > max_t) {
          edm::LogInfo("RandomtXiGunProducer") << "WARNING: t limits redefined (unphysical values for given xi).\n";
          max_t = min_t;
        }
        t = (fLog_t) ? pow(CLHEP::RandFlat::shoot(engine, log10(min_t), log10(max_t)), 10)
                     : CLHEP::RandFlat::shoot(engine, min_t, max_t);
        break;
      }
      phi = CLHEP::RandFlat::shoot(engine, fMinPhi, fMaxPhi);
      HepMC::GenParticle* Part = new HepMC::GenParticle(make_particle(t, Xi, phi, PartID, 1), PartID, 1);
      Part->suggest_barcode(barcode);
      barcode++;
      Vtx->add_particle_out(Part);
    }
    if (fFireBackward) {
      while (true) {
        Xi = CLHEP::RandFlat::shoot(engine, fMinXi, fMaxXi);
        double min_t = std::max(fMint, Minimum_t(Xi));
        double max_t = fMaxt;
        if (min_t > max_t) {
          edm::LogInfo("RandomtXiGunProducer")
              << "WARNING: t limits redefined (unphysical values for given xi)." << endl;
          max_t = min_t;
        }
        t = (fLog_t) ? pow(CLHEP::RandFlat::shoot(engine, log10(min_t), log10(max_t)), 10)
                     : CLHEP::RandFlat::shoot(engine, min_t, max_t);
        break;
      }
      phi = CLHEP::RandFlat::shoot(engine, fMinPhi, fMaxPhi);
      HepMC::GenParticle* Part2 = new HepMC::GenParticle(make_particle(t, Xi, phi, PartID, -1), PartID, 1);
      Part2->suggest_barcode(barcode);
      barcode++;
      Vtx->add_particle_out(Part2);
    }
  }
 
  fEvt->add_vertex(Vtx);
  fEvt->set_event_number(e.id().event());
  fEvt->set_signal_process_id(20);
 
  if (fVerbosity > 0) {
    fEvt->print();
  }
 
  std::unique_ptr<HepMCProduct> BProduct(new HepMCProduct());
  BProduct->addHepMCData(fEvt);
  e.put(std::move(BProduct), "unsmeared");
 
  std::unique_ptr<GenEventInfoProduct> genEventInfo(new GenEventInfoProduct(fEvt));
  e.put(std::move(genEventInfo));
 
  if (fVerbosity > 0) {
    // for testing purpose only
    // fEvt->print() ; // prints empty info after it's made into edm::Event
    edm::LogInfo("RandomtXiGunProducer") << " Event Generation Done \n";
  }
}

References funct::abs(), MillePedeFileConverter_cfg::e, beamvalidation::exit(), edm::BaseRandomtXiGunProducer::fEvt, edm::BaseRandomtXiGunProducer::fFireBackward, edm::BaseRandomtXiGunProducer::fFireForward, edm::BaseRandomtXiGunProducer::fLog_t, edm::BaseRandomtXiGunProducer::fMaxPhi, fMaxt, fMaxXi, edm::BaseRandomtXiGunProducer::fMinPhi, fMint, fMinXi, edm::BaseRandomtXiGunProducer::fPartIDs, edm::BaseRandomtXiGunProducer::fPDGTable, edm::BaseRandomtXiGunProducer::fVerbosity, genParticles2HepMC_cfi::genEventInfo, GenParticle::GenParticle, edm::RandomNumberGenerator::getEngine(), ZgammaFilter_cfi::HepMCProduct, make_particle(), SiStripPI::max, Minimum_t(), eostools::move(), LHEGenericFilter_cfi::ParticleID, genfragment_ptgun_cfg::PartID, edm::BaseRandomtXiGunProducer::PData, phi, funct::pow(), and OrderedSet::t.

Member Data Documentation

fMaxt

double edm::RandomtXiGunProducer::fMaxt

protected

Definition at line 29 of file RandomtXiGunProducer.h.

Referenced by produce(), and RandomtXiGunProducer().

fMaxXi

double edm::RandomtXiGunProducer::fMaxXi

protected

Definition at line 31 of file RandomtXiGunProducer.h.

Referenced by produce(), and RandomtXiGunProducer().

fMint

double edm::RandomtXiGunProducer::fMint

protected

Definition at line 23 of file RandomtXiGunProducer.h.

Referenced by produce(), and RandomtXiGunProducer().

fMinXi

double edm::RandomtXiGunProducer::fMinXi

protected

Definition at line 30 of file RandomtXiGunProducer.h.

Referenced by produce(), and RandomtXiGunProducer().