BWFct Class Reference

#include <BWFct.h>

Inheritance diagram for BWFct:

Public Member Functions
	BWFct (const DalitzCoordinate &c, double M, double Gamma)
	BWFct (const BWFct &other)
virtual void	setLimits (double sMin, double sMax)
virtual double	getSMi () const
virtual double	getSMa () const
virtual double	generateRho (TRandom *rnd=gRandom) const
virtual double	generate (TRandom *rnd=gRandom) const
virtual DalitzCoordinate	getCoordinate () const
virtual void	setCoordinate (const DalitzCoordinate &c)
virtual double	generatingPDFValue (double sij) const
virtual double	generatingFctValue (double sij) const
virtual double	integral () const
virtual bool	flat () const
virtual double	coordTransformFromS (double s) const
virtual double	coordTransformToS (double rho) const
virtual double	transformedPDFValue (double rho) const
virtual double	transformedFctValue (double rho) const
virtual double	transformedFctMax () const
virtual double	transformedIntegral () const
virtual double	getRhoMi () const
virtual double	getRhoMa () const
virtual	~BWFct ()
Public Member Functions inherited from IGenFct
virtual	~IGenFct ()

Private Member Functions
double	rhoMi () const
double	rhoMa () const
double	norm () const
double	unitFactor () const

Private Attributes
DalitzCoordinate	_coord
double	_M
double	_G

Detailed Description

Definition at line 11 of file BWFct.h.

Constructor & Destructor Documentation

BWFct() [1/2]

BWFct::BWFct	(	const DalitzCoordinate &	c,
		double	M,
		double	Gamma
	)

Definition at line 12 of file BWFct.cpp.

  : _coord(c)
  , _M(M)
  , _G(Gamma)
{}

BWFct() [2/2]

BWFct::BWFct

(

const BWFct &

other

)

Definition at line 17 of file BWFct.cpp.

  : IGenFct()
  , _coord(other._coord)
  , _M(other._M)
  , _G(other._G)
{}

~BWFct()

virtual BWFct::~BWFct ( )

inlinevirtual

Definition at line 52 of file BWFct.h.

{};

Member Function Documentation

coordTransformFromS()

double BWFct::coordTransformFromS ( double  s ) const

virtual

Reimplemented from IGenFct.

Definition at line 83 of file BWFct.cpp.

                                              {
  return atan( ( s - _M*_M)/(_M*_G) );
}

coordTransformToS()

double BWFct::coordTransformToS ( double  rho ) const

virtual

Reimplemented from IGenFct.

Definition at line 86 of file BWFct.cpp.

                                              {
  return _M * _G * tan(rho) + _M*_M;
}

flat()

virtual bool BWFct::flat ( ) const

inlinevirtual

Reimplemented from IGenFct.

Definition at line 40 of file BWFct.h.

{return false;}

generate()

double BWFct::generate ( TRandom *  rnd = gRandom ) const

virtual

Implements IGenFct.

Definition at line 61 of file BWFct.cpp.

                                        {
  bool dbThis = false;

  double rho = generateRho(rnd);
  double   s = coordTransformToS(rho);

  if(dbThis) cout << "_M = " << _M
          << ", _G = " << _G
          << ", rho = " << rho
          << ", rhoMi = " << rhoMi()
          << ", rhoMa = " << rhoMa()
          << ", sMi = " << _coord.min()
          << ", sMa = " << _coord.max()
          << ", s = " << s
          << endl;

  return s;
}

generateRho()

double BWFct::generateRho ( TRandom *  rnd = gRandom ) const

virtual

Implements IGenFct.

Definition at line 51 of file BWFct.cpp.

                                           {
  //  bool dbThis = false;

  double rho = rhoMi() + rnd->Rndm()*(rhoMa() - rhoMi());
  return rho;
}

generatingFctValue()

double BWFct::generatingFctValue ( double  sij ) const

virtual

Implements IGenFct.

Definition at line 126 of file BWFct.cpp.

                                                {
  //  bool dbThis = false;
  if(sij < _coord.min() || sij > _coord.max()) return 0;

  double m2diff = _M * _M - sij;
  double fct = unitFactor()/(m2diff*m2diff + _M*_M * _G*_G);
  return fct;
}

generatingPDFValue()

double BWFct::generatingPDFValue ( double  sij ) const

virtual

Implements IGenFct.

Definition at line 108 of file BWFct.cpp.

                                                {
  bool dbThis=false;

  double nr = integral();
  if(nr <= 0) return 0;
  double fct = generatingFctValue(sij);
  if(dbThis){
    cout << " BWFct::generatingPDFValue "
     << _coord
     << " _M^2 " << _M*_M
     << " _G = " << _G
     << ", sij = " << sij
     << " returning " << fct << " / " << nr
     << " = " << fct/nr
     << endl;
  }
  return fct/nr;
}

getCoordinate()

DalitzCoordinate BWFct::getCoordinate ( ) const

virtual

Implements IGenFct.

Definition at line 135 of file BWFct.cpp.

                                           {
  return _coord;
}

getRhoMa()

virtual double BWFct::getRhoMa ( ) const

inlinevirtual

Reimplemented from IGenFct.

Definition at line 50 of file BWFct.h.

{return rhoMa();}

getRhoMi()

virtual double BWFct::getRhoMi ( ) const

inlinevirtual

Reimplemented from IGenFct.

Definition at line 49 of file BWFct.h.

{return rhoMi();}

getSMa()

virtual double BWFct::getSMa ( ) const

inlinevirtual

Implements IGenFct.

Definition at line 28 of file BWFct.h.

{return _coord.max();}

getSMi()

virtual double BWFct::getSMi ( ) const

inlinevirtual

Implements IGenFct.

Definition at line 27 of file BWFct.h.

{return _coord.min();}

integral()

double BWFct::integral ( ) const

virtual

Implements IGenFct.

Definition at line 104 of file BWFct.cpp.

                            {
  return unitFactor()*(rhoMa() - rhoMi())/(_G*_M);
}

norm()

double BWFct::norm ( ) const

private

rhoMa()

double BWFct::rhoMa ( ) const

private

Definition at line 44 of file BWFct.cpp.

                         {
  double rhoMa = 0.5*pi;
  if(_coord.min() < _coord.max() ){
    rhoMa = coordTransformFromS(_coord.max());
  }
  return rhoMa;
}

rhoMi()

double BWFct::rhoMi ( ) const

private

Definition at line 37 of file BWFct.cpp.

                         {
  double rhoMi = -0.5*pi;
  if(_coord.min() < _coord.max() ){
    rhoMi = coordTransformFromS(_coord.min());
  }
  return rhoMi;
}

setCoordinate()

void BWFct::setCoordinate ( const DalitzCoordinate &  c )

virtual

Implements IGenFct.

Definition at line 138 of file BWFct.cpp.

                                                  {
  _coord = c;
}

setLimits()

void BWFct::setLimits ( double  sMin, double  sMax  )

virtual

Implements IGenFct.

Definition at line 31 of file BWFct.cpp.

                                             {
  //  cout << "setting limits to " << sMin << ", " << sMax << endl;
  _coord.setMin(sMin);
  _coord.setMax(sMax);
}

transformedFctMax()

double BWFct::transformedFctMax ( ) const

virtual

Implements IGenFct.

Definition at line 58 of file BWFct.cpp.

                                    {
  return unitFactor()/(_G*_M);
}

transformedFctValue()

double BWFct::transformedFctValue ( double  rho ) const

virtual

Reimplemented from IGenFct.

Definition at line 95 of file BWFct.cpp.

                                                {
  if(rho > rhoMa() || rho < rhoMi()) return 0;
  return 1.0*unitFactor()/(_G*_M);
}

transformedIntegral()

double BWFct::transformedIntegral ( ) const

virtual

Definition at line 99 of file BWFct.cpp.

                                      {
  return 1.0*unitFactor()*(rhoMa() - rhoMi())/(_G*_M);
}

transformedPDFValue()

double BWFct::transformedPDFValue ( double  rho ) const

virtual

Definition at line 90 of file BWFct.cpp.

                                                {
  if(rho > rhoMa() || rho < rhoMi()) return 0;
  return 1.0*unitFactor()/(rhoMa() - rhoMi());
}

unitFactor()

double BWFct::unitFactor ( ) const

private

Definition at line 80 of file BWFct.cpp.

                              {
  return (GeV*GeV)*(GeV*GeV);
}

Member Data Documentation

_coord

DalitzCoordinate BWFct::_coord

private

Definition at line 12 of file BWFct.h.

_G

double BWFct::_G

private

Definition at line 13 of file BWFct.h.

_M

double BWFct::_M

private

Definition at line 13 of file BWFct.h.

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The documentation for this class was generated from the following files:

• Mint/BWFct.h
• src/Mojito/BreitWignerMC/BWFct.cpp