BetafuncEvtVtxGenerator Class Reference

#include <BetafuncEvtVtxGenerator.h>

Inheritance diagram for BetafuncEvtVtxGenerator:

Public Member Functions
void	beginLuminosityBlock (edm::LuminosityBlock const &, edm::EventSetup const &) override
void	beginRun (const edm::Run &, const edm::EventSetup &) override
	BetafuncEvtVtxGenerator (const edm::ParameterSet &p)
double	BetaFunction (double z, double z0) const
	beta function More...
void	betastar (double m=0)
	set beta_star More...
void	emittance (double m=0)
	emittance (no the normalized) More...
TMatrixD const *	GetInvLorentzBoost () const override
HepMC::FourVector	newVertex (CLHEP::HepRandomEngine *) const override
	return a new event vertex More...
void	sigmaZ (double s=1.0)
	set resolution in Z in cm More...
void	X0 (double m=0)
	set mean in X in cm More...
void	Y0 (double m=0)
	set mean in Y in cm More...
void	Z0 (double m=0)
	set mean in Z in cm More...
	~BetafuncEvtVtxGenerator () override
Public Member Functions inherited from BaseEvtVtxGenerator
	BaseEvtVtxGenerator (const edm::ParameterSet &)
void	produce (edm::Event &, const edm::EventSetup &) override
	~BaseEvtVtxGenerator () override
Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default
bool	hasAbilityToProduceInBeginLumis () const final
bool	hasAbilityToProduceInBeginRuns () const final
bool	hasAbilityToProduceInEndLumis () const final
bool	hasAbilityToProduceInEndRuns () const final

Private Member Functions
	BetafuncEvtVtxGenerator (const BetafuncEvtVtxGenerator &p)=delete
BetafuncEvtVtxGenerator &	operator= (const BetafuncEvtVtxGenerator &rhs)=delete
void	setBoost (double alpha, double phi)
void	update (const edm::EventSetup &iEventSetup)

Private Attributes
TMatrixD	boost_
double	fbetastar
double	femittance
double	fSigmaZ
double	fTimeOffset
double	fX0
double	fY0
double	fZ0
edm::ESWatcher< SimBeamSpotObjectsRcd >	parameterWatcher_
bool	readDB_

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
typedef CacheContexts< T... >	CacheTypes
typedef CacheTypes::GlobalCache	GlobalCache
typedef AbilityChecker< T... >	HasAbility
typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache
typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext
typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache
typedef CacheTypes::RunCache	RunCache
typedef RunContextT< RunCache, GlobalCache >	RunContext
typedef CacheTypes::RunSummaryCache	RunSummaryCache

Detailed Description

Definition at line 29 of file BetafuncEvtVtxGenerator.h.

Constructor & Destructor Documentation

BetafuncEvtVtxGenerator() [1/2]

BetafuncEvtVtxGenerator::BetafuncEvtVtxGenerator

(

const edm::ParameterSet &

p

)

Definition at line 36 of file BetafuncEvtVtxGenerator.cc.

                                                                         : BaseEvtVtxGenerator(p), boost_(4, 4) {
  readDB_ = p.getParameter<bool>("readDB");
  if (!readDB_) {
    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
 
    setBoost(p.getParameter<double>("Alpha") * radian, p.getParameter<double>("Phi") * radian);
    if (fSigmaZ <= 0) {
      throw cms::Exception("Configuration") << "Error in BetafuncEvtVtxGenerator: "
                                            << "Illegal resolution in Z (SigmaZ is negative)";
    }
  }
}

References Exception, fbetastar, femittance, fSigmaZ, fTimeOffset, fX0, fY0, fZ0, AlCaHLTBitMon_ParallelJobs::p, readDB_, and setBoost().

~BetafuncEvtVtxGenerator()

BetafuncEvtVtxGenerator::~BetafuncEvtVtxGenerator ( )

override

Definition at line 55 of file BetafuncEvtVtxGenerator.cc.

{}

BetafuncEvtVtxGenerator() [2/2]

BetafuncEvtVtxGenerator::BetafuncEvtVtxGenerator ( const BetafuncEvtVtxGenerator &  p )

privatedelete

Copy constructor

Member Function Documentation

beginLuminosityBlock()

void BetafuncEvtVtxGenerator::beginLuminosityBlock ( edm::LuminosityBlock const &  , edm::EventSetup const &  iEventSetup  )

override

Definition at line 57 of file BetafuncEvtVtxGenerator.cc.

                                                                                                              {
  update(iEventSetup);
}

References update().

beginRun()

void BetafuncEvtVtxGenerator::beginRun ( const edm::Run &  , const edm::EventSetup &  iEventSetup  )

override

Definition at line 60 of file BetafuncEvtVtxGenerator.cc.

{ update(iEventSetup); }

References update().

BetaFunction()

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

beta function

Definition at line 101 of file BetafuncEvtVtxGenerator.cc.

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

References fbetastar, femittance, mathSSE::sqrt(), z, and HLTMuonOfflineAnalyzer_cfi::z0.

Referenced by newVertex().

betastar()

void BetafuncEvtVtxGenerator::betastar ( double  m = 0 )

inline

set beta_star

Definition at line 54 of file BetafuncEvtVtxGenerator.h.

{ fbetastar = m; }

References fbetastar, and visualization-live-secondInstance_cfg::m.

emittance()

void BetafuncEvtVtxGenerator::emittance ( double  m = 0 )

inline

emittance (no the normalized)

Definition at line 56 of file BetafuncEvtVtxGenerator.h.

{ femittance = m; }

References femittance, and visualization-live-secondInstance_cfg::m.

GetInvLorentzBoost()

TMatrixD const * BetafuncEvtVtxGenerator::GetInvLorentzBoost ( ) const

overridevirtual

This method - and the comment - is a left-over from COBRA-OSCAR time : return the last generated event vertex. If no vertex has been generated yet, a NULL pointer is returned.

Implements BaseEvtVtxGenerator.

Definition at line 147 of file BetafuncEvtVtxGenerator.cc.

{ return &boost_; }

References boost_.

newVertex()

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

overridevirtual

return a new event vertex

Implements BaseEvtVtxGenerator.

Definition at line 79 of file BetafuncEvtVtxGenerator.cc.

                                                                                     {
  double X, Y, Z;
 
  double tmp_sigz = CLHEP::RandGaussQ::shoot(engine, 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., 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., tmp_sigy) + fY0;  // + Z*fdydz;
 
  double tmp_sigt = CLHEP::RandGaussQ::shoot(engine, 0., fSigmaZ);
  double T = tmp_sigt + fTimeOffset;
 
  return HepMC::FourVector(X, Y, Z, T);
}

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

operator=()

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

privatedelete

Copy assignment operator

setBoost()

void BetafuncEvtVtxGenerator::setBoost ( double  alpha, double  phi  )

private

Definition at line 105 of file BetafuncEvtVtxGenerator.cc.

                                                               {
  //boost_.ResizeTo(4,4);
  //boost_ = new TMatrixD(4,4);
  TMatrixD tmpboost(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.;
 
  tmpboost.Invert();
  boost_ = tmpboost;
  //boost_->Print();
}

References zMuMuMuonUserData::alpha, boost_, funct::cos(), phi, funct::sin(), and funct::tan().

Referenced by BetafuncEvtVtxGenerator(), and update().

sigmaZ()

void BetafuncEvtVtxGenerator::sigmaZ

(

double

s = 1.0

)

set resolution in Z in cm

Definition at line 138 of file BetafuncEvtVtxGenerator.cc.

                                             {
  if (s >= 0) {
    fSigmaZ = s;
  } else {
    throw cms::Exception("LogicError") << "Error in BetafuncEvtVtxGenerator::sigmaZ: "
                                       << "Illegal resolution in Z (negative)";
  }
}

References Exception, fSigmaZ, and alignCSCRings::s.

update()

void BetafuncEvtVtxGenerator::update ( const edm::EventSetup &  iEventSetup )

private

Definition at line 62 of file BetafuncEvtVtxGenerator.cc.

                                                                     {
  if (readDB_ && parameterWatcher_.check(iEventSetup)) {
    edm::ESHandle<SimBeamSpotObjects> beamhandle;
    iEventSetup.get<SimBeamSpotObjectsRcd>().get(beamhandle);
 
    fX0 = beamhandle->fX0;
    fY0 = beamhandle->fY0;
    fZ0 = beamhandle->fZ0;
    //    falpha=beamhandle->fAlpha;
    fSigmaZ = beamhandle->fSigmaZ;
    fTimeOffset = beamhandle->fTimeOffset;
    fbetastar = beamhandle->fbetastar;
    femittance = beamhandle->femittance;
    setBoost(beamhandle->fAlpha, beamhandle->fPhi);
  }
}

References edm::ESWatcher< T >::check(), SimBeamSpotObjects::fAlpha, SimBeamSpotObjects::fbetastar, fbetastar, SimBeamSpotObjects::femittance, femittance, SimBeamSpotObjects::fPhi, SimBeamSpotObjects::fSigmaZ, fSigmaZ, SimBeamSpotObjects::fTimeOffset, fTimeOffset, SimBeamSpotObjects::fX0, fX0, SimBeamSpotObjects::fY0, fY0, SimBeamSpotObjects::fZ0, fZ0, edm::EventSetup::get(), get, parameterWatcher_, readDB_, and setBoost().

Referenced by progressbar.ProgressBar::__next__(), MatrixUtil.Matrix::__setitem__(), MatrixUtil.Steps::__setitem__(), beginLuminosityBlock(), beginRun(), progressbar.ProgressBar::finish(), and MatrixUtil.Steps::overwrite().

X0()

void BetafuncEvtVtxGenerator::X0 ( double  m = 0 )

inline

set mean in X in cm

Definition at line 47 of file BetafuncEvtVtxGenerator.h.

{ fX0 = m; }

References fX0, and visualization-live-secondInstance_cfg::m.

Y0()

void BetafuncEvtVtxGenerator::Y0 ( double  m = 0 )

inline

set mean in Y in cm

Definition at line 49 of file BetafuncEvtVtxGenerator.h.

{ fY0 = m; }

References fY0, and visualization-live-secondInstance_cfg::m.

Z0()

void BetafuncEvtVtxGenerator::Z0 ( double  m = 0 )

inline

set mean in Z in cm

Definition at line 51 of file BetafuncEvtVtxGenerator.h.

{ fZ0 = m; }

References fZ0, and visualization-live-secondInstance_cfg::m.

Member Data Documentation

boost_

TMatrixD BetafuncEvtVtxGenerator::boost_

private

Definition at line 79 of file BetafuncEvtVtxGenerator.h.

Referenced by GetInvLorentzBoost(), and setBoost().

fbetastar

double BetafuncEvtVtxGenerator::fbetastar

private

Definition at line 75 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), BetaFunction(), betastar(), and update().

femittance

double BetafuncEvtVtxGenerator::femittance

private

Definition at line 75 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), BetaFunction(), emittance(), and update().

fSigmaZ

double BetafuncEvtVtxGenerator::fSigmaZ

private

Definition at line 73 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), newVertex(), sigmaZ(), and update().

fTimeOffset

double BetafuncEvtVtxGenerator::fTimeOffset

private

Definition at line 77 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), newVertex(), and update().

fX0

double BetafuncEvtVtxGenerator::fX0

private

Definition at line 72 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), newVertex(), update(), and X0().

fY0

double BetafuncEvtVtxGenerator::fY0

private

Definition at line 72 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), newVertex(), update(), and Y0().

fZ0

double BetafuncEvtVtxGenerator::fZ0

private

Definition at line 72 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), newVertex(), update(), and Z0().

parameterWatcher_

edm::ESWatcher<SimBeamSpotObjectsRcd> BetafuncEvtVtxGenerator::parameterWatcher_

private

Definition at line 82 of file BetafuncEvtVtxGenerator.h.

Referenced by update().

readDB_

bool BetafuncEvtVtxGenerator::readDB_

private

Definition at line 70 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), and update().