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	hasAbilityToProduceInLumis () const final
bool	hasAbilityToProduceInRuns () 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::BetafuncEvtVtxGenerator

(

const edm::ParameterSet &

p

)

Definition at line 40 of file BetafuncEvtVtxGenerator.cc.

References Exception, fbetastar, femittance, fSigmaZ, fTimeOffset, fX0, fY0, fZ0, edm::ParameterSet::getParameter(), readDB_, and setBoost().

: 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)";
    }
  }
}

BetafuncEvtVtxGenerator::~BetafuncEvtVtxGenerator ( )

override

Definition at line 64 of file BetafuncEvtVtxGenerator.cc.

{
}

BetafuncEvtVtxGenerator::BetafuncEvtVtxGenerator ( const BetafuncEvtVtxGenerator &  p )

privatedelete

Copy constructor

Member Function Documentation

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

override

Definition at line 68 of file BetafuncEvtVtxGenerator.cc.

References update().

                                                                                                             {
  update(iEventSetup);
}

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

override

Definition at line 71 of file BetafuncEvtVtxGenerator.cc.

References update().

                                                                                       {
  update(iEventSetup);
}

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

beta function

Definition at line 117 of file BetafuncEvtVtxGenerator.cc.

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

Referenced by newVertex().

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

}

void BetafuncEvtVtxGenerator::betastar ( double  m = 0 )

inline

set beta_star

Definition at line 56 of file BetafuncEvtVtxGenerator.h.

References funct::m.

{ fbetastar=m; }

void BetafuncEvtVtxGenerator::emittance ( double  m = 0 )

inline

emittance (no the normalized)

Definition at line 58 of file BetafuncEvtVtxGenerator.h.

References alpha, and funct::m.

{ femittance=m; }

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 169 of file BetafuncEvtVtxGenerator.cc.

References boost_.

                                                                  {

  return &boost_;
}

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

overridevirtual

return a new event vertex

Implements BaseEvtVtxGenerator.

Definition at line 93 of file BetafuncEvtVtxGenerator.cc.

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

                                                                                     {

    
    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);
}

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

privatedelete

Copy assignment operator

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

private

Definition at line 123 of file BetafuncEvtVtxGenerator.cc.

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

Referenced by BetafuncEvtVtxGenerator(), and update().

{
  //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();
}

void BetafuncEvtVtxGenerator::sigmaZ

(

double

s = 1.0

)

set resolution in Z in cm

Definition at line 157 of file BetafuncEvtVtxGenerator.cc.

References Exception, fSigmaZ, and alignCSCRings::s.

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

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

private

Definition at line 75 of file BetafuncEvtVtxGenerator.cc.

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(), parameterWatcher_, readDB_, and setBoost().

Referenced by progressbar.ProgressBar::__next__(), MatrixUtil.Matrix::__setitem__(), MatrixUtil.Steps::__setitem__(), Vispa.Gui.VispaWidget.VispaWidget::autosize(), beginLuminosityBlock(), beginRun(), Vispa.Views.LineDecayView.LineDecayContainer::createObject(), Vispa.Views.LineDecayView.LineDecayContainer::deselectAllObjects(), Vispa.Gui.VispaWidgetOwner.VispaWidgetOwner::deselectAllWidgets(), Vispa.Gui.VispaWidget.VispaWidget::enableAutosizing(), progressbar.ProgressBar::finish(), Vispa.Gui.MenuWidget.MenuWidget::leaveEvent(), Vispa.Gui.VispaWidgetOwner.VispaWidgetOwner::mouseMoveEvent(), Vispa.Gui.MenuWidget.MenuWidget::mouseMoveEvent(), Vispa.Views.LineDecayView.LineDecayContainer::mouseMoveEvent(), Vispa.Gui.VispaWidgetOwner.VispaWidgetOwner::mouseReleaseEvent(), Vispa.Views.LineDecayView.LineDecayContainer::objectMoved(), MatrixUtil.Steps::overwrite(), Vispa.Views.LineDecayView.LineDecayContainer::removeObject(), Vispa.Gui.ConnectableWidget.ConnectableWidget::removePorts(), Vispa.Gui.FindDialog.FindDialog::reset(), Vispa.Gui.PortConnection.PointToPointConnection::select(), Vispa.Gui.VispaWidget.VispaWidget::select(), Vispa.Views.LineDecayView.LineDecayContainer::select(), Vispa.Gui.VispaWidget.VispaWidget::setText(), Vispa.Gui.VispaWidget.VispaWidget::setTitle(), Vispa.Gui.ZoomableWidget.ZoomableWidget::setZoom(), Vispa.Views.LineDecayView.LineDecayContainer::setZoom(), and Vispa.Gui.PortConnection.PointToPointConnection::updateConnection().

                                                                    {
  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);

  }
}

void BetafuncEvtVtxGenerator::X0 ( double  m = 0 )

inline

set mean in X in cm

Definition at line 49 of file BetafuncEvtVtxGenerator.h.

References funct::m.

{ fX0=m; }

void BetafuncEvtVtxGenerator::Y0 ( double  m = 0 )

inline

set mean in Y in cm

Definition at line 51 of file BetafuncEvtVtxGenerator.h.

References funct::m.

{ fY0=m; }

void BetafuncEvtVtxGenerator::Z0 ( double  m = 0 )

inline

set mean in Z in cm

Definition at line 53 of file BetafuncEvtVtxGenerator.h.

References funct::m.

{ fZ0=m; }

Member Data Documentation

TMatrixD BetafuncEvtVtxGenerator::boost_

private

Definition at line 81 of file BetafuncEvtVtxGenerator.h.

Referenced by GetInvLorentzBoost(), and setBoost().

double BetafuncEvtVtxGenerator::fbetastar

private

Definition at line 77 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::femittance

private

Definition at line 77 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fSigmaZ

private

Definition at line 75 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fTimeOffset

private

Definition at line 79 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fX0

private

Definition at line 74 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fY0

private

Definition at line 74 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fZ0

private

Definition at line 74 of file BetafuncEvtVtxGenerator.h.

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

edm::ESWatcher<SimBeamSpotObjectsRcd> BetafuncEvtVtxGenerator::parameterWatcher_

private

Definition at line 84 of file BetafuncEvtVtxGenerator.h.

Referenced by update().

bool BetafuncEvtVtxGenerator::readDB_

private

Definition at line 72 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), and update().