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AliRoot » PWGCF » FEMTOSCOPY » ALIFEMTOUSER » AliFemtoCorrFctnDirectYlm

class AliFemtoCorrFctnDirectYlm: public AliFemtoCorrFctn


AliFemtoCorrFctnDirectYlm - Correlation function that is binned in Ylms
directly. Provides a way to store the numerator and denominator
in Ylms directly and correctly calculate the correlation
function from them.

Authors: Adam Kisiel kisiel@mps.ohio-state.edu

Function Members (Methods)

public:

	AliFemtoCorrFctnDirectYlm()
	AliFemtoCorrFctnDirectYlm(const AliFemtoCorrFctnDirectYlm& aCorrFctn)
	AliFemtoCorrFctnDirectYlm(const char* name, int maxl, int ibin, double vmin, double vmax, int aUseLCMS)
virtual	~AliFemtoCorrFctnDirectYlm()
virtual void	AddMixedPair(AliFemtoPair* aPair)
void	AddMixedPair(double* qvec, double weight = 1.0)
void	AddMixedPair(double qout, double qside, double qlong, double weight = 1.0)
virtual void	AddRealPair(AliFemtoPair* aPair)
void	AddRealPair(double* qvec, double weight = 1.0)
void	AddRealPair(double qout, double qside, double qlong, double weight = 1.0)
virtual AliFemtoCorrFctn*	AliFemtoCorrFctn::Clone()
virtual void	AliFemtoCorrFctn::EventBegin(const AliFemtoEvent* aEvent)
virtual void	AliFemtoCorrFctn::EventEnd(const AliFemtoEvent* aEvent)
virtual void	Finish()
TH1D*	GetDenImagHist(int el, int em)
TH1D*	GetDenRealHist(int el, int em)
TH1D*	GetNumImagHist(int el, int em)
TH1D*	GetNumRealHist(int el, int em)
virtual TList*	GetOutputList()
int	GetUseLCMS()
AliFemtoAnalysis*	AliFemtoCorrFctn::HbtAnalysis()
AliFemtoCorrFctnDirectYlm&	operator=(const AliFemtoCorrFctnDirectYlm& aCorrFctn)
void	ReadFromFile(TFile* infile, const char* name, int maxl)
virtual AliFemtoString	Report()
void	AliFemtoCorrFctn::SetAnalysis(AliFemtoAnalysis* aAnalysis)
void	AliFemtoCorrFctn::SetPairSelectionCut(AliFemtoPairCut* aCut)
void	SetUseLCMS(int aUseLCMS)
void	Write()

private:

double	ClebschGordan(double aJot1, double aEm1, double aJot2, double aEm2, double aJot, double aEm)
double	DeltaJ(double aJot1, double aJot2, double aJot)
int	GetBin(int qbin, int ilmzero, int zeroimag, int ilmprim, int primimag)
void	GetElEmForIndex(int aIndex, double* aEl, double* aEm) const
void	GetElEmForIndex(int aIndex, int* aEl, int* aEm) const
int	GetIndexForLM(int el, int em) const
int	GetMaxJM() const
void	GetMtilde(complex<double>* aMat, double* aMTilde)
void	PackCovariances()
int	PackYlmMatrix(const double* inmat, double* outmat)
int	PackYlmVector(const double* invec, double* outvec)
void	UnpackCovariances()
double	WignerSymbol(double aJot1, double aEm1, double aJot2, double aEm2, double aJot, double aEm)

Data Members

protected:

AliFemtoPairCut*	AliFemtoCorrFctn::fPairCut	! this is a PairSelection criteria for this Correlation Function
AliFemtoAnalysis*	AliFemtoCorrFctn::fyAnalysis	! link to the analysis

private:

int	fMaxJM	number of l-m combinations
int	fMaxL	l cut-off of the decomposition
double	fSlong	Save last calculated qlong
double	fSout	Save last calculated qout
double	fSside	Save last calculated qside
int	fUseLCMS	0 - Use PRF, 1 - Use LCMS
complex<double>*	fYlmBuffer	buffer for ylm calculation
double*	factorials	Helper table of factorials
TH1D*	fbinctd	Bin occupation for the denominator
TH1D*	fbinctn	Bin occupation for the numerator
TH3D*	fcovden	Denominator covariance matrix packed into TH3D
double*	fcovmden	Covariance matrix for the denominator
double*	fcovmnum	Covariance matrix for the numerator
TH3D*	fcovnum	Numerator covariance matrix packed into TH3D
TH1D**	fdensimag	Imaginary parts of Ylm components of the denominator
TH1D**	fdensreal	Real parts of Ylm components of the denominator
double*	fels	table of l's
int*	felsi	table of integer l's
double*	fems	table of m's
int*	femsi	table of integer m's
TH1D**	fnumsimag	Imaginary parts of Ylm components of the numerator
TH1D**	fnumsreal	Real parts of Ylm components of the numerator

Class Charts

Inheritance Chart:

AliFemtoCorrFctn

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AliFemtoCorrFctnDirectYlm

Function documentation

AliFemtoCorrFctnDirectYlm(const char* name, int maxl, int ibin, double vmin, double vmax, int aUseLCMS)

 Main constructor

AliFemtoCorrFctnDirectYlm()

 Default constructor

AliFemtoCorrFctnDirectYlm(const AliFemtoCorrFctnDirectYlm& aCorrFctn)

 Copy constructor

AliFemtoCorrFctnDirectYlm& operator=(const AliFemtoCorrFctnDirectYlm& aCorrFctn)

 assignment operator

~AliFemtoCorrFctnDirectYlm()

 Destructor

double ClebschGordan(double aJot1, double aEm1, double aJot2, double aEm2, double aJot, double aEm)

 Calculate Clebsh-Gordan coefficient

double DeltaJ(double aJot1, double aJot2, double aJot)

 Calculate J for the Clebsh-Gordan coefficient

double WignerSymbol(double aJot1, double aEm1, double aJot2, double aEm2, double aJot, double aEm)

 Get Wigner symbol

void GetMtilde(complex<double>* aMat, double* aMTilde)

 Create the Mtilde for a given q bin

int GetMaxJM() const

{ return fMaxJM; }

void GetElEmForIndex(int aIndex, double* aEl, double* aEm) const

 Get l,m for a given index

void GetElEmForIndex(int aIndex, int* aEl, int* aEm) const

 Get l,m for a given index

int GetBin(int qbin, int ilmzero, int zeroimag, int ilmprim, int primimag)

void AddRealPair(double qout, double qside, double qlong, double weight = 1.0)

 Fill numerator

void AddMixedPair(double qout, double qside, double qlong, double weight = 1.0)

 Fill denominator

void AddRealPair(double* qvec, double weight = 1.0)

void AddMixedPair(double* qvec, double weight = 1.0)

void Finish()

void Write()

 Write out output histograms

TList* GetOutputList()

 Prepare the list of objects to be written to the output

void ReadFromFile(TFile* infile, const char* name, int maxl)

 Raad in the numerator and denominator from file

int PackYlmVector(const double* invec, double* outvec)

 Pack a vector in l,m into an array using
 only independent components

int PackYlmMatrix(const double* inmat, double* outmat)

 Pack a matrix in l,m x l,m into an array using
 only independent components

void PackCovariances()

 Migrate the covariance matrix into a 3D histogram for storage

void UnpackCovariances()

 Extract the covariance matrices from storage

int GetIndexForLM(int el, int em) const

 Get array index for a given l,m

TH1D * GetNumRealHist(int el, int em)

 Get numerator hist for a given l,m

TH1D * GetNumImagHist(int el, int em)

 Get numerator hist for a given l,m

TH1D * GetDenRealHist(int el, int em)

 Get denominator hist for a given l,m

TH1D * GetDenImagHist(int el, int em)

 Get denominator hist for a given l,m

AliFemtoString Report()

void AddRealPair(AliFemtoPair* aPair)

 Fill in the numerator

void AddMixedPair(AliFemtoPair* aPair)

 Fill in the denominator

void SetUseLCMS(int aUseLCMS)

int GetUseLCMS()