Inheritance diagram for BetaBoostEvtVtxGenerator:

Public Member Functions
	BetaBoostEvtVtxGenerator (const edm::ParameterSet &p)

	BetaBoostEvtVtxGenerator (const BetaBoostEvtVtxGenerator &p)=delete

double	BetaFunction (double z, double z0) const
	beta function More...

TMatrixD	GetInvLorentzBoost () const

HepMC::FourVector	newVertex (CLHEP::HepRandomEngine *) const
	return a new event vertex More...

BetaBoostEvtVtxGenerator &	operator= (const BetaBoostEvtVtxGenerator &rhs)=delete

void	produce (edm::StreamID, edm::Event &, const edm::EventSetup &) const override

	~BetaBoostEvtVtxGenerator () override=default

Public Member Functions inherited from edm::global::EDProducer<>
	EDProducer ()=default

	EDProducer (const EDProducer &)=delete

bool	hasAbilityToProduceInBeginLumis () const final

bool	hasAbilityToProduceInBeginProcessBlocks () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndProcessBlocks () const final

bool	hasAbilityToProduceInEndRuns () const final

EDProducer &	operator= (const EDProducer &)=delete

bool	wantsGlobalLuminosityBlocks () const final

bool	wantsGlobalRuns () const final

bool	wantsInputProcessBlocks () const final

bool	wantsProcessBlocks () const final

bool	wantsStreamLuminosityBlocks () const final

bool	wantsStreamRuns () const final

Public Member Functions inherited from edm::global::EDProducerBase
	EDProducerBase ()

ModuleDescription const &	moduleDescription () 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

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)

	~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 const &)=delete

	EDConsumerBase (EDConsumerBase &&)=default

ESProxyIndex const *	esGetTokenIndices (edm::Transition iTrans) const

std::vector< ESProxyIndex > const &	esGetTokenIndicesVector (edm::Transition iTrans) const

std::vector< ESRecordIndex > const &	esGetTokenRecordIndicesVector (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::array< std::vector< ModuleDescription const * > , NumBranchTypes > &modulesAll, std::vector< ModuleProcessName > &modulesInPreviousProcesses, ProductRegistry const &preg, std::map< std::string, ModuleDescription const > const &labelsToDesc, std::string const &processName) const

EDConsumerBase const &	operator= (EDConsumerBase const &)=delete

EDConsumerBase &	operator= (EDConsumerBase &&)=default

bool	registeredToConsume (ProductResolverIndex, bool, BranchType) const

bool	registeredToConsumeMany (TypeID const &, BranchType) const

void	selectInputProcessBlocks (ProductRegistry const &productRegistry, ProcessBlockHelperBase const &processBlockHelperBase)

ProductResolverIndexAndSkipBit	uncheckedIndexFrom (EDGetToken) const

void	updateLookup (BranchType iBranchType, ProductResolverIndexHelper const &, bool iPrefetchMayGet)

void	updateLookup (eventsetup::ESRecordsToProxyIndices const &)

virtual	~EDConsumerBase () noexcept(false)

Private Attributes
const double	alpha_

const double	beta_

const TMatrixD	boost_

const double	fbetastar

const double	femittance

const double	fSigmaZ

const double	fTimeOffset

const double	fX0

const double	fY0

const double	fZ0

const double	phi_

const edm::EDGetTokenT < HepMCProduct >	sourceLabel

const bool	verbosity_

Additional Inherited Members
Public Types inherited from edm::global::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::global::EDProducerBase
static const std::string &	baseType ()

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Protected Member Functions inherited from edm::ProducerBase
ProducesCollector	producesCollector ()

Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)

template<BranchType B = InEvent>
EDConsumerBaseAdaptor< B >	consumes (edm::InputTag tag) noexcept

EDGetToken	consumes (const TypeToGet &id, 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)

template<Transition Tr = Transition::Event>
constexpr auto	esConsumes ()

template<Transition Tr = Transition::Event>
auto	esConsumes (ESInputTag tag)

template<Transition Tr = Transition::Event>
ESGetTokenGeneric	esConsumes (eventsetup::EventSetupRecordKey const &iRecord, eventsetup::DataKey const &iKey)
	Used with EventSetupRecord::doGet. More...

template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)

EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

void	resetItemsToGetFrom (BranchType iType)

Detailed Description

Definition at line 51 of file BetaBoostEvtVtxGenerator.cc.

Constructor & Destructor Documentation

BetaBoostEvtVtxGenerator::BetaBoostEvtVtxGenerator ( const edm::ParameterSet & p )

Definition at line 89 of file BetaBoostEvtVtxGenerator.cc.

References Exception, and fSigmaZ.

     : alpha_(p.getParameter<double>("Alpha") * radian),
       phi_(p.getParameter<double>("Phi") * radian),
       beta_(p.getParameter<double>("Beta")),
       fX0(p.getParameter<double>("X0") * cm),
       fY0(p.getParameter<double>("Y0") * cm),
       fZ0(p.getParameter<double>("Z0") * cm),
       fSigmaZ(p.getParameter<double>("SigmaZ") * cm),
       fbetastar(p.getParameter<double>("BetaStar") * cm),
       femittance(p.getParameter<double>("Emittance") * cm),              // this is not the normalized emittance
       fTimeOffset(p.getParameter<double>("TimeOffset") * ns * c_light),  // HepMC time units are mm
       boost_(GetInvLorentzBoost()),
       sourceLabel(consumes<HepMCProduct>(p.getParameter<edm::InputTag>("src"))),
       verbosity_(p.getUntrackedParameter<bool>("verbosity", false)) {
   if (fSigmaZ <= 0) {
     throw cms::Exception("Configuration") << "Error in BetaBoostEvtVtxGenerator: "
                                           << "Illegal resolution in Z (SigmaZ is negative)";
   }
 
   produces<edm::HepMCProduct>();
 }

BetaBoostEvtVtxGenerator::BetaBoostEvtVtxGenerator ( const BetaBoostEvtVtxGenerator & p )

delete

Copy constructor

BetaBoostEvtVtxGenerator::~BetaBoostEvtVtxGenerator ( )

overridedefault

Member Function Documentation

double BetaBoostEvtVtxGenerator::BetaFunction	(	double	z,
		double	z0
	)		const

beta function

Definition at line 133 of file BetaBoostEvtVtxGenerator.cc.

References fbetastar, femittance, and mathSSE::sqrt().

Referenced by newVertex().

                                                                        {
   return sqrt(femittance * (fbetastar + (((z - z0) * (z - z0)) / fbetastar)));
 }

TMatrixD BetaBoostEvtVtxGenerator::GetInvLorentzBoost ( ) const

Definition at line 137 of file BetaBoostEvtVtxGenerator.cc.

References alpha_, beta_, funct::cos(), phi_, funct::sin(), mathSSE::sqrt(), funct::tan(), and verbosity_.

                                                             {
   //alpha_ = 0;
   //phi_ = 142.e-6;
   //    if (boost_ != 0 ) return boost_;
 
   //boost_.ResizeTo(4,4);
   //boost_ = new TMatrixD(4,4);
   TMatrixD tmpboost(4, 4);
   TMatrixD tmpboostZ(4, 4);
   TMatrixD tmpboostXYZ(4, 4);
 
   //if ( (alpha_ == 0) && (phi_==0) ) { boost_->Zero(); return boost_; }
 
   // Lorentz boost to frame where the collision is head-on
   // phi is the half crossing angle in the plane ZS
   // alpha is the angle to the S axis from the X axis in the XY plane
 
   tmpboost(0, 0) = 1. / cos(phi_);
   tmpboost(0, 1) = -cos(alpha_) * sin(phi_);
   tmpboost(0, 2) = -tan(phi_) * sin(phi_);
   tmpboost(0, 3) = -sin(alpha_) * sin(phi_);
   tmpboost(1, 0) = -cos(alpha_) * tan(phi_);
   tmpboost(1, 1) = 1.;
   tmpboost(1, 2) = cos(alpha_) * tan(phi_);
   tmpboost(1, 3) = 0.;
   tmpboost(2, 0) = 0.;
   tmpboost(2, 1) = -cos(alpha_) * sin(phi_);
   tmpboost(2, 2) = cos(phi_);
   tmpboost(2, 3) = -sin(alpha_) * sin(phi_);
   tmpboost(3, 0) = -sin(alpha_) * tan(phi_);
   tmpboost(3, 1) = 0.;
   tmpboost(3, 2) = sin(alpha_) * tan(phi_);
   tmpboost(3, 3) = 1.;
   //cout<<"beta "<<beta_;
   double gama = 1.0 / sqrt(1 - beta_ * beta_);
   tmpboostZ(0, 0) = gama;
   tmpboostZ(0, 1) = 0.;
   tmpboostZ(0, 2) = -1.0 * beta_ * gama;
   tmpboostZ(0, 3) = 0.;
   tmpboostZ(1, 0) = 0.;
   tmpboostZ(1, 1) = 1.;
   tmpboostZ(1, 2) = 0.;
   tmpboostZ(1, 3) = 0.;
   tmpboostZ(2, 0) = -1.0 * beta_ * gama;
   tmpboostZ(2, 1) = 0.;
   tmpboostZ(2, 2) = gama;
   tmpboostZ(2, 3) = 0.;
   tmpboostZ(3, 0) = 0.;
   tmpboostZ(3, 1) = 0.;
   tmpboostZ(3, 2) = 0.;
   tmpboostZ(3, 3) = 1.;
 
   tmpboostXYZ = tmpboostZ * tmpboost;
   tmpboostXYZ.Invert();
 
   if (verbosity_) {
     tmpboostXYZ.Print();
   }
 
   return tmpboostXYZ;
 }

HepMC::FourVector BetaBoostEvtVtxGenerator::newVertex ( CLHEP::HepRandomEngine * engine ) const

return a new event vertex

Definition at line 111 of file BetaBoostEvtVtxGenerator.cc.

References BetaFunction(), fSigmaZ, fTimeOffset, fX0, fY0, fZ0, mathSSE::sqrt(), X, BeamSpotPI::Y, and BeamSpotPI::Z.

Referenced by produce().

                                                                                       {
   double X, Y, Z;
 
   double tmp_sigz = CLHEP::RandGaussQ::shoot(engine, 0.0, fSigmaZ);
   Z = tmp_sigz + fZ0;
 
   double tmp_sigx = BetaFunction(Z, fZ0);
   // need sqrt(2) for beamspot width relative to single beam width
   tmp_sigx /= sqrt(2.0);
   X = CLHEP::RandGaussQ::shoot(engine, 0.0, tmp_sigx) + fX0;  // + Z*fdxdz ;
 
   double tmp_sigy = BetaFunction(Z, fZ0);
   // need sqrt(2) for beamspot width relative to single beam width
   tmp_sigy /= sqrt(2.0);
   Y = CLHEP::RandGaussQ::shoot(engine, 0.0, tmp_sigy) + fY0;  // + Z*fdydz;
 
   double tmp_sigt = CLHEP::RandGaussQ::shoot(engine, 0.0, fSigmaZ);
   double T = tmp_sigt + fTimeOffset;
 
   return HepMC::FourVector(X, Y, Z, T);
 }

BetaBoostEvtVtxGenerator& BetaBoostEvtVtxGenerator::operator= ( const BetaBoostEvtVtxGenerator & rhs )

delete

Copy assignment operator

void BetaBoostEvtVtxGenerator::produce	(	edm::StreamID	,
		edm::Event &	evt,
		const edm::EventSetup &
	)		const

overridevirtual

Implements edm::global::EDProducerBase.

Definition at line 199 of file BetaBoostEvtVtxGenerator.cc.

References boost_, Exception, edm::Event::get(), edm::RandomNumberGenerator::getEngine(), edm::Service< T >::isAvailable(), eostools::move(), newVertex(), edm::Event::put(), sourceLabel, and edm::Event::streamID().

                                                                                        {
   edm::Service<RandomNumberGenerator> rng;
   if (!rng.isAvailable()) {
     throw cms::Exception("Configuration")
         << "Attempt to get a random engine when the RandomNumberGeneratorService is not configured.\n"
            "You must configure the service if you want an engine.\n";
   }
   CLHEP::HepRandomEngine* engine = &rng->getEngine(evt.streamID());
 
   const auto& HepUnsmearedMCEvt = evt.get(sourceLabel);
 
   // Copy the HepMC::GenEvent
   auto HepMCEvt = std::make_unique<edm::HepMCProduct>(new HepMC::GenEvent(*HepUnsmearedMCEvt.GetEvent()));
 
   // generate new vertex & apply the shift
   //
   auto vertex = newVertex(engine);
   HepMCEvt->applyVtxGen(&vertex);
 
   //HepMCEvt->LorentzBoost( 0., 142.e-6 );
   HepMCEvt->boostToLab(&boost_, "vertex");
   HepMCEvt->boostToLab(&boost_, "momentum");
   evt.put(std::move(HepMCEvt));
 }