BetafuncEvtVtxGenerator Class Reference

#include <BetafuncEvtVtxGenerator.h>

Inheritance diagram for BetafuncEvtVtxGenerator:

Public Member Functions
void	Alpha (double m=0)
	angle between crossing plane and horizontal plane More...
virtual void	beginLuminosityBlock (edm::LuminosityBlock &, edm::EventSetup const &)
virtual void	beginRun (edm::Run &, const edm::EventSetup &)
	BetafuncEvtVtxGenerator (const edm::ParameterSet &p)
double	BetaFunction (double z, double z0)
	beta function More...
void	betastar (double m=0)
	set beta_star More...
void	emittance (double m=0)
	emittance (no the normalized) More...
virtual TMatrixD *	GetInvLorentzBoost ()
virtual HepMC::FourVector *	newVertex ()
	return a new event vertex More...
void	Phi (double m=0)
	set half crossing angle 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...
virtual	~BetafuncEvtVtxGenerator ()
Public Member Functions inherited from BaseEvtVtxGenerator
	BaseEvtVtxGenerator (const edm::ParameterSet &)
virtual HepMC::FourVector *	lastVertex ()
virtual void	produce (edm::Event &, const edm::EventSetup &)
virtual	~BaseEvtVtxGenerator ()
Public Member Functions inherited from edm::EDProducer
	EDProducer ()
virtual	~EDProducer ()
Public Member Functions inherited from edm::ProducerBase
	ProducerBase ()
void	registerProducts (ProducerBase *, ProductRegistry *, ModuleDescription const &)
boost::function< void(const BranchDescription &)>	registrationCallback () const
	used by the fwk to register list of products More...
virtual	~ProducerBase ()

Private Member Functions
	BetafuncEvtVtxGenerator (const BetafuncEvtVtxGenerator &p)
BetafuncEvtVtxGenerator &	operator= (const BetafuncEvtVtxGenerator &rhs)
void	update (const edm::EventSetup &iEventSetup)

Private Attributes
double	alpha_
double	fbetastar
double	femittance
CLHEP::RandGaussQ *	fRandom
double	fSigmaZ
double	fTimeOffset
double	fX0
double	fY0
double	fZ0
edm::ESWatcher < SimBeamSpotObjectsRcd >	parameterWatcher_
double	phi_
bool	readDB_

Additional Inherited Members
Public Types inherited from edm::EDProducer
typedef EDProducer	ModuleType
typedef WorkerT< EDProducer >	WorkerType
Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList
Static Public Member Functions inherited from edm::EDProducer
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &descriptions)
Protected Member Functions inherited from BaseEvtVtxGenerator
CLHEP::HepRandomEngine &	getEngine ()
Protected Member Functions inherited from edm::EDProducer
CurrentProcessingContext const *	currentContext () const
Protected Member Functions inherited from edm::ProducerBase
template<class TProducer , class TMethod >
void	callWhenNewProductsRegistered (TProducer *iProd, TMethod iMethod)
Protected Attributes inherited from BaseEvtVtxGenerator
TMatrixD *	boost_
double	fTimeOffset
HepMC::FourVector *	fVertex

Detailed Description

Definition at line 30 of file BetafuncEvtVtxGenerator.h.

Constructor & Destructor Documentation

BetafuncEvtVtxGenerator::BetafuncEvtVtxGenerator

(

const edm::ParameterSet &

p

)

Definition at line 41 of file BetafuncEvtVtxGenerator.cc.

References alpha_, edm::hlt::Exception, fbetastar, femittance, fRandom, fSigmaZ, fTimeOffset, fX0, fY0, fZ0, BaseEvtVtxGenerator::getEngine(), edm::ParameterSet::getParameter(), phi_, and readDB_.

: BaseEvtVtxGenerator(p)
{ 
  
  fRandom = new CLHEP::RandGaussQ(getEngine());

  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;
    alpha_ =     p.getParameter<double>("Alpha")*radian;
    phi_ =       p.getParameter<double>("Phi")*radian;
    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
    
    if (fSigmaZ <= 0) {
      throw cms::Exception("Configuration")
    << "Error in BetafuncEvtVtxGenerator: "
    << "Illegal resolution in Z (SigmaZ is negative)";
    }
  }

  
}

BetafuncEvtVtxGenerator::~BetafuncEvtVtxGenerator ( )

virtual

Definition at line 69 of file BetafuncEvtVtxGenerator.cc.

References fRandom.

{
    delete fRandom; 
}

BetafuncEvtVtxGenerator::BetafuncEvtVtxGenerator ( const BetafuncEvtVtxGenerator &  p )

private

Copy constructor

Member Function Documentation

void BetafuncEvtVtxGenerator::Alpha ( double  m = 0 )

inline

angle between crossing plane and horizontal plane

Definition at line 59 of file BetafuncEvtVtxGenerator.h.

References alpha_, and m.

{ alpha_=m; }

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

virtual

Reimplemented from edm::EDProducer.

Definition at line 74 of file BetafuncEvtVtxGenerator.cc.

References update().

                                                                                                       {
  update(iEventSetup);
}

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

virtual

Reimplemented from BaseEvtVtxGenerator.

Definition at line 77 of file BetafuncEvtVtxGenerator.cc.

References update().

                                                                                  {
  update(iEventSetup);
}

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

beta function

Definition at line 131 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 62 of file BetafuncEvtVtxGenerator.h.

References fbetastar, and m.

{ fbetastar=m; }

void BetafuncEvtVtxGenerator::emittance ( double  m = 0 )

inline

emittance (no the normalized)

Definition at line 64 of file BetafuncEvtVtxGenerator.h.

References femittance, and m.

{ femittance=m; }

TMatrixD * BetafuncEvtVtxGenerator::GetInvLorentzBoost ( )

virtual

Implements BaseEvtVtxGenerator.

Definition at line 150 of file BetafuncEvtVtxGenerator.cc.

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

                                                      {

    //alpha_ = 0;
    //phi_ = 142.e-6;
    
    if (boost_ != 0 ) return boost_;
    
    //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_ = new TMatrixD(tmpboost);
    //boost_->Print();
    
    return boost_;
}

HepMC::FourVector * BetafuncEvtVtxGenerator::newVertex ( )

virtual

return a new event vertex

Implements BaseEvtVtxGenerator.

Definition at line 104 of file BetafuncEvtVtxGenerator.cc.

References BetaFunction(), fRandom, fSigmaZ, fTimeOffset, BaseEvtVtxGenerator::fVertex, fX0, fY0, fZ0, mathSSE::sqrt(), X, and Gflash::Z.

                                                    {

    
    double X,Y,Z;
    
    double tmp_sigz = fRandom->fire(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 = fRandom->fire(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 = fRandom->fire(0.,tmp_sigy) + fY0; // + Z*fdydz;

    double tmp_sigt = fRandom->fire(0., fSigmaZ);
    double T = tmp_sigt + fTimeOffset; 

    if ( fVertex == 0 ) fVertex = new HepMC::FourVector();
    fVertex->set(X,Y,Z,T);
        
    return fVertex;
}

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

private

Copy assignment operator

void BetafuncEvtVtxGenerator::Phi ( double  m = 0 )

inline

set half crossing angle

Definition at line 57 of file BetafuncEvtVtxGenerator.h.

References m, and phi_.

{ phi_=m; }

void BetafuncEvtVtxGenerator::sigmaZ

(

double

s = 1.0

)

set resolution in Z in cm

Definition at line 138 of file BetafuncEvtVtxGenerator.cc.

References edm::hlt::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 81 of file BetafuncEvtVtxGenerator.cc.

References alpha_, BaseEvtVtxGenerator::boost_, edm::ESWatcher< T >::check(), fbetastar, femittance, fSigmaZ, fTimeOffset, fX0, fY0, fZ0, edm::EventSetup::get(), parameterWatcher_, phi_, and readDB_.

Referenced by progressbar.ProgressBar::__next__(), relval_steps.Matrix::__setitem__(), relval_steps.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(), relval_steps.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;
    alpha_=beamhandle->fAlpha;
    phi_=beamhandle->fPhi;
    fSigmaZ=beamhandle->fSigmaZ;
    fTimeOffset=beamhandle->fTimeOffset;
    fbetastar=beamhandle->fbetastar;
    femittance=beamhandle->femittance;

    //re-initialize the boost matrix
    delete boost_;
    boost_=0;
  }
}

void BetafuncEvtVtxGenerator::X0 ( double  m = 0 )

inline

set mean in X in cm

Definition at line 50 of file BetafuncEvtVtxGenerator.h.

References fX0, and m.

{ fX0=m; }

void BetafuncEvtVtxGenerator::Y0 ( double  m = 0 )

inline

set mean in Y in cm

Definition at line 52 of file BetafuncEvtVtxGenerator.h.

References fY0, and m.

{ fY0=m; }

void BetafuncEvtVtxGenerator::Z0 ( double  m = 0 )

inline

set mean in Z in cm

Definition at line 54 of file BetafuncEvtVtxGenerator.h.

References fZ0, and m.

{ fZ0=m; }

Member Data Documentation

double BetafuncEvtVtxGenerator::alpha_

private

Definition at line 79 of file BetafuncEvtVtxGenerator.h.

Referenced by Alpha(), BetafuncEvtVtxGenerator(), GetInvLorentzBoost(), and update().

double BetafuncEvtVtxGenerator::fbetastar

private

Definition at line 85 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::femittance

private

Definition at line 85 of file BetafuncEvtVtxGenerator.h.

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

CLHEP::RandGaussQ* BetafuncEvtVtxGenerator::fRandom

private

Definition at line 89 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fSigmaZ

private

Definition at line 83 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fTimeOffset

private

Definition at line 87 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fX0

private

Definition at line 82 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fY0

private

Definition at line 82 of file BetafuncEvtVtxGenerator.h.

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

double BetafuncEvtVtxGenerator::fZ0

private

Definition at line 82 of file BetafuncEvtVtxGenerator.h.

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

edm::ESWatcher<SimBeamSpotObjectsRcd> BetafuncEvtVtxGenerator::parameterWatcher_

private

Definition at line 92 of file BetafuncEvtVtxGenerator.h.

Referenced by update().

double BetafuncEvtVtxGenerator::phi_

private

Definition at line 79 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), GetInvLorentzBoost(), Phi(), and update().

bool BetafuncEvtVtxGenerator::readDB_

private

Definition at line 77 of file BetafuncEvtVtxGenerator.h.

Referenced by BetafuncEvtVtxGenerator(), and update().