AliHFInvMassFitter class for the fit of invariant mass distribution of charm hadrons. More...

#include <AliHFInvMassFitter.h>

Inheritance diagram for AliHFInvMassFitter:

Public Types
enum	ETypeOfBkg { kExpo =0, kLin =1, kPol2 =2, kNoBk =3, kPow =4, kPowEx =5 }

enum	ETypeOfSgn { kGaus =0, k2Gaus =1 }

Public Member Functions
	AliHFInvMassFitter ()

	AliHFInvMassFitter (const TH1F *histoToFit, Double_t minvalue, Double_t maxvalue, Int_t fittypeb=kExpo, Int_t fittypes=kGaus)

	~AliHFInvMassFitter ()

void	SetHistogramFit (const TH1F *histoToFit)

void	SetRangeFit (Double_t minvalue, Double_t maxvalue)

void	SetFitFunctions (Int_t fittypeb, Int_t fittypes)

void	SetUseLikelihoodFit ()

void	SetUseLikelihoodWithWeightsFit ()

void	SetUseChi2Fit ()

void	SetFitOption (TString opt)

void	SetParticlePdgMass (Double_t mass)

Double_t	GetParticlePdgMass ()

void	SetPolDegreeForBackgroundFit (Int_t deg)

void	SetInitialGaussianMean (Double_t mean)

void	SetInitialGaussianSigma (Double_t sigma)

void	SetFixGaussianMean (Double_t mean)

void	SetFixGaussianSigma (Double_t sigma)

void	SetFixSignalYield (Double_t yield)

void	SetNSigma4SideBands (Double_t ns=4.)

TH1F *	SetTemplateReflections (const TH1 *h, TString opt, Double_t minRange, Double_t maxRange)

void	SetInitialReflOverS (Double_t rovers)

void	SetFixReflOverS (Double_t rovers)

void	SetSmoothReflectionTemplate (Bool_t opt)

void	IncludeSecondGausPeak (Double_t mass, Bool_t fixm, Double_t width, Bool_t fixw)

Double_t	GetRawYield () const

Double_t	GetRawYieldError () const

Double_t	GetMean () const

Double_t	GetMeanUncertainty () const

Double_t	GetSigma () const

Double_t	GetSigmaUncertainty () const

Double_t	GetReflOverSig () const

Double_t	GetReflOverSigUncertainty () const

TF1 *	GetBackgroundFullRangeFunc ()

TF1 *	GetBackgroundRecalcFunc ()

TF1 *	GetBkgPlusReflFunc ()

TF1 *	GetSignalFunc ()

TF1 *	GetMassFunc ()

Double_t	GetChiSquare () const

Double_t	GetReducedChiSquare () const

Double_t	GetFitProbability () const

TH1F *	GetHistoClone () const

Double_t	GetRawYieldBinCounting (Double_t &errRyBC, Double_t nSigma=3., Int_t option=0, Int_t pdgCode=0) const

Double_t	GetRawYieldBinCounting (Double_t &errRyBC, Double_t minMass, Double_t maxMass, Int_t option=0) const

Int_t	MassFitter (Bool_t draw=kTRUE)

Double_t	FitFunction4Sgn (Double_t x, Double_t par)

Double_t	FitFunction4Bkg (Double_t x, Double_t par)

Double_t	FitFunction4Refl (Double_t x, Double_t par)

Double_t	FitFunction4BkgAndRefl (Double_t x, Double_t par)

Double_t	FitFunction4SecPeak (Double_t x, Double_t par)

Double_t	FitFunction4Mass (Double_t x, Double_t par)

virtual void	Signal (Double_t nOfSigma, Double_t &signal, Double_t &errsignal) const

virtual void	Signal (Double_t min, Double_t max, Double_t &signal, Double_t &errsignal) const

void	Background (Double_t nOfSigma, Double_t &background, Double_t &errbackground) const

void	Background (Double_t min, Double_t max, Double_t &background, Double_t &errbackground) const

void	DrawHere (TVirtualPad *c, Double_t nsigma=3, Int_t writeFitInfo=1)

void	Significance (Double_t nOfSigma, Double_t &significance, Double_t &errsignificance) const

void	Significance (Double_t min, Double_t max, Double_t &significance, Double_t &errsignificance) const

TH1F *	GetResidualsAndPulls (TH1 hPulls=0x0, TH1 hResidualTrend=0x0, TH1 *hPullsTrend=0x0, Double_t minrange=0, Double_t maxrange=-1)

void	PrintFunctions ()

Private Member Functions
	AliHFInvMassFitter (const AliHFInvMassFitter &source)

AliHFInvMassFitter &	operator= (const AliHFInvMassFitter &source)

void	SetNumberOfParams ()

Double_t	CheckForSignal (Double_t mean, Double_t sigma)

TF1 *	CreateBackgroundFitFunction (TString fname, Double_t integral)

TF1 *	CreateSignalFitFunction (TString fname, Double_t integral)

TF1 *	CreateSecondPeakFunction (TString fname, Double_t integral)

TF1 *	CreateReflectionFunction (TString fname)

TF1 *	CreateBackgroundPlusReflectionFunction (TString fname)

TF1 *	CreateTotalFitFunction (TString fname)

Bool_t	PrepareHighPolFit (TF1 *fback)

Double_t	BackFitFuncPolHelper (Double_t x, Double_t par)

void	DrawFit ()

Private Attributes
TH1F *	fHistoInvMass

Double_t	fMinMass
	histogram to fit More...

Double_t	fMaxMass
	lower mass limit More...

Int_t	fTypeOfFit4Bkg
	upper mass limit More...

Int_t	fPolDegreeBkg
	background fit func More...

Int_t	fCurPolDegreeBkg
	degree of polynomial expansion for back fit (option 6 for back) More...

Double_t	fMassParticle
	help variable More...

Int_t	fTypeOfFit4Sgn
	pdg value of particle mass More...

Double_t	fMass
	signal fit func More...

Double_t	fMassErr
	signal gaussian mean value More...

Double_t	fSigmaSgn
	unc on signal gaussian mean value More...

Double_t	fSigmaSgnErr
	signal gaussian sigma More...

Bool_t	fFixedMean
	unc on signal gaussian sigma More...

Bool_t	fFixedSigma
	switch for fix mean of gaussian More...

Double_t	fFixedRawYield
	switch for fix Sigma of gaussian More...

Int_t	fNParsSig
	initialization for wa yield More...

Int_t	fNParsBkg
	fit parameters in signal fit function More...

Bool_t	fOnlySideBands
	fit parameters in background fit function More...

Double_t	fNSigma4SideBands
	kTRUE = only side bands considered More...

TString	fFitOption
	number of sigmas to veto the signal peak More...

Double_t	fRawYield
	L, LW or Chi2. More...

Double_t	fRawYieldErr
	signal gaussian integral More...

TF1 *	fSigFunc
	err on signal gaussian integral More...

TF1 *	fBkgFuncSb
	Signal fit function. More...

TF1 *	fBkgFunc
	background fit function (1st step, side bands only) More...

TF1 *	fBkgFuncRefit
	background fit function (1st step, extended in peak region) More...

Bool_t	fReflections
	background fit function (2nd step) More...

Int_t	fNParsRfl
	flag use/not use reflections More...

Double_t	fRflOverSig
	fit parameters in reflection fit function More...

Bool_t	fFixRflOverSig
	reflection/signal More...

TH1F *	fHistoTemplRfl
	switch for fix refl/signal More...

Bool_t	fSmoothRfl
	histogram with reflection template More...

Double_t	fRawYieldHelp
	switch for smoothing of reflection template More...

TF1 *	fRflFunc
	internal variable for fit with reflections More...

TF1 *	fBkRFunc
	fit function for reflections More...

Bool_t	fSecondPeak
	fit function for reflections More...

Int_t	fNParsSec
	switch off/on second peak (for D+->KKpi in Ds) More...

Double_t	fSecMass
	fit parameters in 2nd peak fit function More...

Double_t	fSecWidth
	position of the 2nd peak More...

Bool_t	fFixSecMass
	width of the 2nd peak More...

Bool_t	fFixSecWidth
	flag to fix the position of the 2nd peak More...

TF1 *	fSecFunc
	flag to fix the width of the 2nd peak More...

TF1 *	fTotFunc
	fit function for second peak More...

Detailed Description

AliHFInvMassFitter class for the fit of invariant mass distribution of charm hadrons.

Author: Author: F.Prino, A. Rossi, C. Bianchin

Definition at line 24 of file AliHFInvMassFitter.h.

Member Enumeration Documentation

enum AliHFInvMassFitter::ETypeOfBkg

Enumerator
kExpo
kLin
kPol2
kNoBk
kPow
kPowEx

Definition at line 27 of file AliHFInvMassFitter.h.

enum AliHFInvMassFitter::ETypeOfSgn

Enumerator
kGaus
k2Gaus

Definition at line 28 of file AliHFInvMassFitter.h.

Constructor & Destructor Documentation

AliHFInvMassFitter::AliHFInvMassFitter ( )

Implemenatation od AliHFInvMassFitter class for the fit of invariant mass distribution of charm hadron candidates reconstructed from their hadronic decays

Author: F. Prino -> Simplified version of AliHFMassFitter class developed by C.Bianchin -> With extra features:

Polynomials with degree >2 as background fit function (as implemented by A. Rossi in AliHFMassFitterVAR
Possibility to incude a Gaussian function in the background (for D+ -> KKpi decays in the D_s background)

default constructor

Definition at line 49 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone().

AliHFInvMassFitter::AliHFInvMassFitter	(	const TH1F *	histoToFit,
		Double_t	minvalue,
		Double_t	maxvalue,
		Int_t	fittypeb = `kExpo`,
		Int_t	fittypes = `kGaus`
	)

standard constructor

Definition at line 99 of file AliHFInvMassFitter.cxx.

AliHFInvMassFitter::~AliHFInvMassFitter ( )

destructor

Definition at line 151 of file AliHFInvMassFitter.cxx.

AliHFInvMassFitter::AliHFInvMassFitter ( const AliHFInvMassFitter & source )

private

Member Function Documentation

Double_t AliHFInvMassFitter::BackFitFuncPolHelper	(	Double_t *	x,
		Double_t *	par
	)

private

Helper function for polynomials with degree>2

Definition at line 921 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and PrepareHighPolFit().

void AliHFInvMassFitter::Background	(	Double_t	nOfSigma,
		Double_t &	background,
		Double_t &	errbackground
	)		const

Return background integral in mean +- n sigma

Definition at line 790 of file AliHFInvMassFitter.cxx.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), DrawHere(), GetHistoClone(), ProjectCombinHFAndFit(), and Significance().

void AliHFInvMassFitter::Background	(	Double_t	min,
		Double_t	max,
		Double_t &	background,
		Double_t &	errbackground
	)		const

Return background integral in a range

Definition at line 801 of file AliHFInvMassFitter.cxx.

Double_t AliHFInvMassFitter::CheckForSignal	(	Double_t	mean,
		Double_t	sigma
	)

private

Checks if there are signal counts above the background in the invariant mass region of the peak

Definition at line 393 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and MassFitter().

TF1 * AliHFInvMassFitter::CreateBackgroundFitFunction	(	TString	fname,
		Double_t	integral
	)

private

Creates the background fit fucntion

Definition at line 418 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and MassFitter().

TF1 * AliHFInvMassFitter::CreateBackgroundPlusReflectionFunction ( TString fname )

private

Creates the function with sum of background and reflections

Definition at line 493 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and MassFitter().

TF1 * AliHFInvMassFitter::CreateReflectionFunction ( TString fname )

private

Creates a function for reflections contribution in the D0->Kpi inv. mass distribution

Definition at line 482 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and MassFitter().

TF1 * AliHFInvMassFitter::CreateSecondPeakFunction	(	TString	fname,
		Double_t	integral
	)

private

Creates a function for a gaussian peak in the background fit function Can be used e.g. to include the D+->KKpi peak in the D_s inv. mass fit

Definition at line 468 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and MassFitter().

TF1 * AliHFInvMassFitter::CreateSignalFitFunction	(	TString	fname,
		Double_t	integral
	)

private

Creates the fit function for the signal peak

Definition at line 511 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and MassFitter().

TF1 * AliHFInvMassFitter::CreateTotalFitFunction ( TString fname )

private

Creates the total fit fucntion (signal+background+possible second peak)

Definition at line 544 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and MassFitter().

void AliHFInvMassFitter::DrawFit ( )

private

Steering method to draw the fit output

Definition at line 335 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and MassFitter().

void AliHFInvMassFitter::DrawHere	(	TVirtualPad *	c,
		Double_t	nsigma = `3`,
		Int_t	writeFitInfo = `1`
	)

Core method to draw the fit output

Definition at line 343 of file AliHFInvMassFitter.cxx.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), DrawFit(), GetHistoClone(), and ProjectCombinHFAndFit().

Double_t AliHFInvMassFitter::FitFunction4Bkg	(	Double_t *	x,
		Double_t *	par
	)

Fit function for the background

Definition at line 586 of file AliHFInvMassFitter.cxx.

Referenced by CreateBackgroundFitFunction(), FitFunction4BkgAndRefl(), FitFunction4Mass(), and GetHistoClone().

Double_t AliHFInvMassFitter::FitFunction4BkgAndRefl	(	Double_t *	x,
		Double_t *	par
	)

Fit fucntion with the sum of background and reflections

Definition at line 733 of file AliHFInvMassFitter.cxx.

Referenced by CreateBackgroundPlusReflectionFunction(), and GetHistoClone().

Double_t AliHFInvMassFitter::FitFunction4Mass	(	Double_t *	x,
		Double_t *	par
	)

Total fit function (signal+background+possible second peak)

Definition at line 755 of file AliHFInvMassFitter.cxx.

Referenced by CreateTotalFitFunction(), and GetHistoClone().

Double_t AliHFInvMassFitter::FitFunction4Refl	(	Double_t *	x,
		Double_t *	par
	)

Fit function for reflections: D0->Kpi decays with swapped mass assignment to pion and kaon decay tracks

Definition at line 716 of file AliHFInvMassFitter.cxx.

Referenced by CreateReflectionFunction(), FitFunction4BkgAndRefl(), FitFunction4Mass(), and GetHistoClone().

Double_t AliHFInvMassFitter::FitFunction4SecPeak	(	Double_t *	x,
		Double_t *	par
	)

Fit function for a second gaussian peak To be used, e.g., for D+->KKpi in the Ds mass spectrum

Definition at line 742 of file AliHFInvMassFitter.cxx.

Referenced by CreateSecondPeakFunction(), FitFunction4Mass(), and GetHistoClone().

Double_t AliHFInvMassFitter::FitFunction4Sgn	(	Double_t *	x,
		Double_t *	par
	)

Fit function for the signal

Definition at line 682 of file AliHFInvMassFitter.cxx.

Referenced by CreateSignalFitFunction(), FitFunction4Mass(), and GetHistoClone().

TF1* AliHFInvMassFitter::GetBackgroundFullRangeFunc ( )

inline

Definition at line 99 of file AliHFInvMassFitter.h.

TF1* AliHFInvMassFitter::GetBackgroundRecalcFunc ( )

inline

Definition at line 100 of file AliHFInvMassFitter.h.

Referenced by ProjectCombinHFAndFit(), and WriteFitFunctionsToFile().

TF1* AliHFInvMassFitter::GetBkgPlusReflFunc ( )

inline

Definition at line 101 of file AliHFInvMassFitter.h.

Double_t AliHFInvMassFitter::GetChiSquare ( ) const

inline

Definition at line 104 of file AliHFInvMassFitter.h.

Double_t AliHFInvMassFitter::GetFitProbability ( ) const

inline

Definition at line 112 of file AliHFInvMassFitter.h.

TH1F* AliHFInvMassFitter::GetHistoClone ( ) const

inline

Definition at line 116 of file AliHFInvMassFitter.h.

Referenced by ConfigureFitter().

TF1* AliHFInvMassFitter::GetMassFunc ( )

inline

Definition at line 103 of file AliHFInvMassFitter.h.

Referenced by AliHFVnVsMassFitter::MassPrefit(), ProjectCombinHFAndFit(), and WriteFitFunctionsToFile().

Double_t AliHFInvMassFitter::GetMean ( ) const

inline

Definition at line 87 of file AliHFInvMassFitter.h.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), AliHFVnVsMassFitter::VnSBPrefit(), and WriteFitInfo().

Double_t AliHFInvMassFitter::GetMeanUncertainty ( ) const

inline

Definition at line 88 of file AliHFInvMassFitter.h.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), and WriteFitInfo().

Double_t AliHFInvMassFitter::GetParticlePdgMass ( )

inline

Definition at line 51 of file AliHFInvMassFitter.h.

Double_t AliHFInvMassFitter::GetRawYield ( ) const

inline

Definition at line 85 of file AliHFInvMassFitter.h.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), and WriteFitInfo().

Double_t AliHFInvMassFitter::GetRawYieldBinCounting	(	Double_t &	errRyBC,
		Double_t	nSigma = `3.`,
		Int_t	option = `0`,
		Int_t	pdgCode = `0`
	)		const

Method to compute the signal using inv. mass histo bin counting -> interface method to compute yield in nsigma range around peak pdgCode: if==411,421,413,413 or 4122: range defined based on PDG mass

Definition at line 1039 of file AliHFInvMassFitter.cxx.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), GetHistoClone(), and ProjectCombinHFAndFit().

Double_t AliHFInvMassFitter::GetRawYieldBinCounting	(	Double_t &	errRyBC,
		Double_t	minMass,
		Double_t	maxMass,
		Int_t	option = `0`
	)		const

Method to compute the signal using inv. mass histo bin counting after background subtraction from background fit function option=0: background fit function from 1st fit step (only side bands) option=1: background fit function from 2nd fit step (S+B)

Definition at line 1067 of file AliHFInvMassFitter.cxx.

Double_t AliHFInvMassFitter::GetRawYieldError ( ) const

inline

Definition at line 86 of file AliHFInvMassFitter.h.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), and WriteFitInfo().

Double_t AliHFInvMassFitter::GetReducedChiSquare ( ) const

inline

Definition at line 108 of file AliHFInvMassFitter.h.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials().

Double_t AliHFInvMassFitter::GetReflOverSig ( ) const

inline

Definition at line 91 of file AliHFInvMassFitter.h.

Referenced by WriteFitInfo().

Double_t AliHFInvMassFitter::GetReflOverSigUncertainty ( ) const

inline

Definition at line 95 of file AliHFInvMassFitter.h.

Referenced by WriteFitInfo().

TH1F * AliHFInvMassFitter::GetResidualsAndPulls	(	TH1 *	hPulls = `0x0`,
		TH1 *	hResidualTrend = `0x0`,
		TH1 *	hPullsTrend = `0x0`,
		Double_t	minrange = `0`,
		Double_t	maxrange = `-1`
	)

fill and return the residual and pull histos

Definition at line 1105 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and ProjectCombinHFAndFit().

Double_t AliHFInvMassFitter::GetSigma ( ) const

inline

Definition at line 89 of file AliHFInvMassFitter.h.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), AliHFVnVsMassFitter::VnSBPrefit(), and WriteFitInfo().

Double_t AliHFInvMassFitter::GetSigmaUncertainty ( ) const

inline

Definition at line 90 of file AliHFInvMassFitter.h.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), and WriteFitInfo().

TF1* AliHFInvMassFitter::GetSignalFunc ( )

inline

Definition at line 102 of file AliHFInvMassFitter.h.

Referenced by WriteFitFunctionsToFile().

void AliHFInvMassFitter::IncludeSecondGausPeak	(	Double_t	mass,
		Bool_t	fixm,
		Double_t	width,
		Bool_t	fixw
	)

inline

Definition at line 81 of file AliHFInvMassFitter.h.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), and AliHFVnVsMassFitter::MassPrefit().

Int_t AliHFInvMassFitter::MassFitter ( Bool_t draw = kTRUE )

Main function to fit the invariant mass distribution returns 0 if the fit fails returns 1 if the fit succeeds returns 2 if there is no signal and the fit is performed with only background

Definition at line 219 of file AliHFInvMassFitter.cxx.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), GetHistoClone(), AliHFVnVsMassFitter::MassPrefit(), and ProjectCombinHFAndFit().

AliHFInvMassFitter& AliHFInvMassFitter::operator= ( const AliHFInvMassFitter & source )

private

Referenced by GetHistoClone().

Bool_t AliHFInvMassFitter::PrepareHighPolFit ( TF1 * fback )

private

Perform intermediate fit steps up to fPolDegreeBkg-1 in case of fit with a polynomial with degree > 2 (fTypeOfFit4Bkg=6)

Definition at line 870 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone(), and MassFitter().

void AliHFInvMassFitter::PrintFunctions ( )

dump the function parameters

Definition at line 1185 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone().

void AliHFInvMassFitter::SetFitFunctions	(	Int_t	fittypeb,
		Int_t	fittypes
	)

inline

Definition at line 41 of file AliHFInvMassFitter.h.

void AliHFInvMassFitter::SetFitOption ( TString opt )

inline

Definition at line 49 of file AliHFInvMassFitter.h.

Referenced by ConfigureFitter().

void AliHFInvMassFitter::SetFixGaussianMean ( Double_t mean )

inline

Definition at line 59 of file AliHFInvMassFitter.h.

Referenced by ConfigureFitter(), AliHFInvMassMultiTrialFit::DoMultiTrials(), and AliHFVnVsMassFitter::MassPrefit().

void AliHFInvMassFitter::SetFixGaussianSigma ( Double_t sigma )

inline

Definition at line 63 of file AliHFInvMassFitter.h.

Referenced by ConfigureFitter(), AliHFInvMassMultiTrialFit::DoMultiTrials(), and AliHFVnVsMassFitter::MassPrefit().

void AliHFInvMassFitter::SetFixReflOverS ( Double_t rovers )

inline

Definition at line 75 of file AliHFInvMassFitter.h.

Referenced by ConfigureFitter(), AliHFInvMassMultiTrialFit::DoMultiTrials(), and AliHFVnVsMassFitter::MassPrefit().

void AliHFInvMassFitter::SetFixSignalYield ( Double_t yield )

inline

Definition at line 67 of file AliHFInvMassFitter.h.

void AliHFInvMassFitter::SetHistogramFit ( const TH1F * histoToFit )

inline

Definition at line 33 of file AliHFInvMassFitter.h.

void AliHFInvMassFitter::SetInitialGaussianMean ( Double_t mean )

inline

Definition at line 57 of file AliHFInvMassFitter.h.

Referenced by ConfigureFitter(), AliHFInvMassMultiTrialFit::DoMultiTrials(), AliHFVnVsMassFitter::MassPrefit(), and SetFixGaussianMean().

void AliHFInvMassFitter::SetInitialGaussianSigma ( Double_t sigma )

inline

Definition at line 58 of file AliHFInvMassFitter.h.

Referenced by ConfigureFitter(), AliHFInvMassMultiTrialFit::DoMultiTrials(), AliHFVnVsMassFitter::MassPrefit(), and SetFixGaussianSigma().

void AliHFInvMassFitter::SetInitialReflOverS ( Double_t rovers )

inline

Definition at line 74 of file AliHFInvMassFitter.h.

Referenced by AliHFVnVsMassFitter::MassPrefit(), and SetFixReflOverS().

void AliHFInvMassFitter::SetNSigma4SideBands ( Double_t ns = 4. )

inline

Definition at line 70 of file AliHFInvMassFitter.h.

void AliHFInvMassFitter::SetNumberOfParams ( )

private

Configure number of parameters of fit functions

Definition at line 168 of file AliHFInvMassFitter.cxx.

Referenced by AliHFInvMassFitter(), CreateBackgroundFitFunction(), CreateBackgroundPlusReflectionFunction(), CreateSignalFitFunction(), CreateTotalFitFunction(), GetHistoClone(), SetFitFunctions(), and SetPolDegreeForBackgroundFit().

void AliHFInvMassFitter::SetParticlePdgMass ( Double_t mass )

inline

Definition at line 50 of file AliHFInvMassFitter.h.

void AliHFInvMassFitter::SetPolDegreeForBackgroundFit ( Int_t deg )

inline

Definition at line 52 of file AliHFInvMassFitter.h.

Referenced by ConfigureFitter(), AliHFInvMassMultiTrialFit::DoMultiTrials(), and AliHFVnVsMassFitter::MassPrefit().

void AliHFInvMassFitter::SetRangeFit	(	Double_t	minvalue,
		Double_t	maxvalue
	)

inline

Definition at line 38 of file AliHFInvMassFitter.h.

void AliHFInvMassFitter::SetSmoothReflectionTemplate ( Bool_t opt )

inline

Definition at line 79 of file AliHFInvMassFitter.h.

TH1F * AliHFInvMassFitter::SetTemplateReflections	(	const TH1 *	h,
		TString	opt,
		Double_t	minRange,
		Double_t	maxRange
	)

Method to create the reflection invariant mass distributions from MC templates option could be: "template" use MC histograms "1gaus" ot "singlegaus" single gaussian function fit to MC templates "2gaus" ot "doublegaus" double gaussian function fit to MC templates "pol3" 3rd order polynomial fit to MC templates "pol6" 6th order polynomial fit to MC templates

Definition at line 937 of file AliHFInvMassFitter.cxx.

Referenced by ConfigureFitter(), AliHFInvMassMultiTrialFit::DoMultiTrials(), AliHFVnVsMassFitter::MassPrefit(), and SetNSigma4SideBands().

void AliHFInvMassFitter::SetUseChi2Fit ( )

inline

Definition at line 48 of file AliHFInvMassFitter.h.

Referenced by ConfigureFitter(), and AliHFInvMassMultiTrialFit::DoMultiTrials().

void AliHFInvMassFitter::SetUseLikelihoodFit ( )

inline

Definition at line 46 of file AliHFInvMassFitter.h.

Referenced by AliHFVnVsMassFitter::MassPrefit().

void AliHFInvMassFitter::SetUseLikelihoodWithWeightsFit ( )

inline

Definition at line 47 of file AliHFInvMassFitter.h.

void AliHFInvMassFitter::Signal	(	Double_t	nOfSigma,
		Double_t &	signal,
		Double_t &	errsignal
	)		const

virtual

Return signal integral in mean +- n sigma

Definition at line 769 of file AliHFInvMassFitter.cxx.

Referenced by GetHistoClone().

void AliHFInvMassFitter::Signal	(	Double_t	min,
		Double_t	max,
		Double_t &	signal,
		Double_t &	errsignal
	)		const

virtual

Return signal integral in a range

Definition at line 780 of file AliHFInvMassFitter.cxx.

void AliHFInvMassFitter::Significance	(	Double_t	nOfSigma,
		Double_t &	significance,
		Double_t &	errsignificance
	)		const

Return significance in mean +- n sigma

Definition at line 839 of file AliHFInvMassFitter.cxx.

Referenced by AliHFInvMassMultiTrialFit::DoMultiTrials(), DrawHere(), and GetHistoClone().

void AliHFInvMassFitter::Significance	(	Double_t	min,
		Double_t	max,
		Double_t &	significance,
		Double_t &	errsignificance
	)		const

Return significance integral in a range

Definition at line 852 of file AliHFInvMassFitter.cxx.

Member Data Documentation

TF1* AliHFInvMassFitter::fBkgFunc

private

background fit function (1st step, side bands only)

Definition at line 180 of file AliHFInvMassFitter.h.

Referenced by Background(), CheckForSignal(), CreateBackgroundPlusReflectionFunction(), CreateTotalFitFunction(), DrawHere(), GetBackgroundFullRangeFunc(), GetRawYieldBinCounting(), MassFitter(), PrintFunctions(), and ~AliHFInvMassFitter().

TF1* AliHFInvMassFitter::fBkgFuncRefit

private

background fit function (1st step, extended in peak region)

Definition at line 181 of file AliHFInvMassFitter.h.

Referenced by Background(), DrawHere(), GetBackgroundRecalcFunc(), GetRawYieldBinCounting(), MassFitter(), PrintFunctions(), and ~AliHFInvMassFitter().

TF1* AliHFInvMassFitter::fBkgFuncSb

private

Signal fit function.

Definition at line 179 of file AliHFInvMassFitter.h.

Referenced by MassFitter(), and ~AliHFInvMassFitter().

TF1* AliHFInvMassFitter::fBkRFunc

private

fit function for reflections

Definition at line 190 of file AliHFInvMassFitter.h.

Referenced by DrawHere(), GetBkgPlusReflFunc(), MassFitter(), PrintFunctions(), and ~AliHFInvMassFitter().

Int_t AliHFInvMassFitter::fCurPolDegreeBkg

private

degree of polynomial expansion for back fit (option 6 for back)

Definition at line 161 of file AliHFInvMassFitter.h.

Referenced by BackFitFuncPolHelper(), and PrepareHighPolFit().

TString AliHFInvMassFitter::fFitOption

private

number of sigmas to veto the signal peak

Definition at line 175 of file AliHFInvMassFitter.h.

Referenced by MassFitter(), SetFitOption(), SetUseChi2Fit(), SetUseLikelihoodFit(), and SetUseLikelihoodWithWeightsFit().

Bool_t AliHFInvMassFitter::fFixedMean

private

unc on signal gaussian sigma

Definition at line 168 of file AliHFInvMassFitter.h.

Referenced by CreateSignalFitFunction(), and SetFixGaussianMean().

Double_t AliHFInvMassFitter::fFixedRawYield

private

switch for fix Sigma of gaussian

Definition at line 170 of file AliHFInvMassFitter.h.

Referenced by CreateSignalFitFunction(), and SetFixSignalYield().

Bool_t AliHFInvMassFitter::fFixedSigma

private

switch for fix mean of gaussian

Definition at line 169 of file AliHFInvMassFitter.h.

Referenced by CreateSignalFitFunction(), and SetFixGaussianSigma().

Bool_t AliHFInvMassFitter::fFixRflOverSig

private

reflection/signal

Definition at line 185 of file AliHFInvMassFitter.h.

Referenced by CreateReflectionFunction(), and SetFixReflOverS().

Bool_t AliHFInvMassFitter::fFixSecMass

private

width of the 2nd peak

Definition at line 195 of file AliHFInvMassFitter.h.

Referenced by CreateSecondPeakFunction(), and IncludeSecondGausPeak().

Bool_t AliHFInvMassFitter::fFixSecWidth

private

flag to fix the position of the 2nd peak

Definition at line 196 of file AliHFInvMassFitter.h.

Referenced by CreateSecondPeakFunction(), and IncludeSecondGausPeak().

TH1F* AliHFInvMassFitter::fHistoInvMass

private

Definition at line 156 of file AliHFInvMassFitter.h.

Referenced by AliHFInvMassFitter(), Background(), CheckForSignal(), DrawHere(), FitFunction4Refl(), FitFunction4Sgn(), GetHistoClone(), GetRawYieldBinCounting(), GetResidualsAndPulls(), MassFitter(), PrepareHighPolFit(), SetHistogramFit(), Signal(), and ~AliHFInvMassFitter().

TH1F* AliHFInvMassFitter::fHistoTemplRfl

private

switch for fix refl/signal

Definition at line 186 of file AliHFInvMassFitter.h.

Referenced by FitFunction4Refl(), SetTemplateReflections(), and ~AliHFInvMassFitter().

Double_t AliHFInvMassFitter::fMass

private

signal fit func

Definition at line 164 of file AliHFInvMassFitter.h.

Referenced by BackFitFuncPolHelper(), Background(), CreateSignalFitFunction(), FitFunction4Bkg(), GetMean(), GetRawYieldBinCounting(), MassFitter(), PrepareHighPolFit(), SetInitialGaussianMean(), Signal(), and Significance().

Double_t AliHFInvMassFitter::fMassErr

private

signal gaussian mean value

Definition at line 165 of file AliHFInvMassFitter.h.

Referenced by GetMeanUncertainty(), and MassFitter().

Double_t AliHFInvMassFitter::fMassParticle

private

help variable

Definition at line 162 of file AliHFInvMassFitter.h.

Referenced by BackFitFuncPolHelper(), FitFunction4Bkg(), GetParticlePdgMass(), and SetParticlePdgMass().

Double_t AliHFInvMassFitter::fMaxMass

private

lower mass limit

Definition at line 158 of file AliHFInvMassFitter.h.

Referenced by CreateBackgroundFitFunction(), CreateBackgroundPlusReflectionFunction(), CreateReflectionFunction(), CreateSecondPeakFunction(), CreateSignalFitFunction(), CreateTotalFitFunction(), DrawHere(), FitFunction4Bkg(), FitFunction4Refl(), GetResidualsAndPulls(), MassFitter(), PrepareHighPolFit(), and SetRangeFit().

Double_t AliHFInvMassFitter::fMinMass

private

histogram to fit

Definition at line 157 of file AliHFInvMassFitter.h.

Referenced by CreateBackgroundFitFunction(), CreateBackgroundPlusReflectionFunction(), CreateReflectionFunction(), CreateSecondPeakFunction(), CreateSignalFitFunction(), CreateTotalFitFunction(), DrawHere(), FitFunction4Bkg(), FitFunction4Refl(), GetResidualsAndPulls(), MassFitter(), PrepareHighPolFit(), and SetRangeFit().

Int_t AliHFInvMassFitter::fNParsBkg

private

fit parameters in signal fit function

Definition at line 172 of file AliHFInvMassFitter.h.

Referenced by CreateBackgroundFitFunction(), CreateBackgroundPlusReflectionFunction(), CreateTotalFitFunction(), DrawHere(), FitFunction4BkgAndRefl(), FitFunction4Mass(), MassFitter(), and SetNumberOfParams().

Int_t AliHFInvMassFitter::fNParsRfl

private

flag use/not use reflections

Definition at line 183 of file AliHFInvMassFitter.h.

Referenced by CreateBackgroundPlusReflectionFunction(), CreateTotalFitFunction(), MassFitter(), and SetNumberOfParams().

Int_t AliHFInvMassFitter::fNParsSec

private

switch off/on second peak (for D+->KKpi in Ds)

Definition at line 192 of file AliHFInvMassFitter.h.

Referenced by CreateTotalFitFunction(), FitFunction4Mass(), MassFitter(), and SetNumberOfParams().

Int_t AliHFInvMassFitter::fNParsSig

private

initialization for wa yield

Definition at line 171 of file AliHFInvMassFitter.h.

Referenced by CreateSignalFitFunction(), CreateTotalFitFunction(), DrawHere(), FitFunction4Mass(), MassFitter(), and SetNumberOfParams().

Double_t AliHFInvMassFitter::fNSigma4SideBands

private

kTRUE = only side bands considered

Definition at line 174 of file AliHFInvMassFitter.h.

Referenced by BackFitFuncPolHelper(), Background(), FitFunction4Bkg(), MassFitter(), and SetNSigma4SideBands().

Bool_t AliHFInvMassFitter::fOnlySideBands

private

fit parameters in background fit function

Definition at line 173 of file AliHFInvMassFitter.h.

Referenced by BackFitFuncPolHelper(), FitFunction4Bkg(), and MassFitter().

Int_t AliHFInvMassFitter::fPolDegreeBkg

private

background fit func

Definition at line 160 of file AliHFInvMassFitter.h.

Referenced by FitFunction4Bkg(), PrepareHighPolFit(), SetNumberOfParams(), and SetPolDegreeForBackgroundFit().

Double_t AliHFInvMassFitter::fRawYield

private

L, LW or Chi2.

Definition at line 176 of file AliHFInvMassFitter.h.

Referenced by DrawHere(), GetRawYield(), MassFitter(), Signal(), and Significance().

Double_t AliHFInvMassFitter::fRawYieldErr

private

signal gaussian integral

Definition at line 177 of file AliHFInvMassFitter.h.

Referenced by DrawHere(), GetRawYieldError(), MassFitter(), Signal(), and Significance().

Double_t AliHFInvMassFitter::fRawYieldHelp

private

switch for smoothing of reflection template

Definition at line 188 of file AliHFInvMassFitter.h.

Referenced by FitFunction4Refl(), FitFunction4Sgn(), and MassFitter().

Bool_t AliHFInvMassFitter::fReflections

private

background fit function (2nd step)

Definition at line 182 of file AliHFInvMassFitter.h.

Referenced by CreateTotalFitFunction(), FitFunction4BkgAndRefl(), FitFunction4Mass(), MassFitter(), SetNumberOfParams(), and SetTemplateReflections().

TF1* AliHFInvMassFitter::fRflFunc

private

internal variable for fit with reflections

Definition at line 189 of file AliHFInvMassFitter.h.

Referenced by CreateBackgroundPlusReflectionFunction(), CreateTotalFitFunction(), DrawHere(), GetRawYieldBinCounting(), GetReflOverSig(), GetReflOverSigUncertainty(), MassFitter(), PrintFunctions(), and ~AliHFInvMassFitter().

Double_t AliHFInvMassFitter::fRflOverSig

private

fit parameters in reflection fit function

Definition at line 184 of file AliHFInvMassFitter.h.

Referenced by CreateReflectionFunction(), and SetInitialReflOverS().

TF1* AliHFInvMassFitter::fSecFunc

private

flag to fix the width of the 2nd peak

Definition at line 197 of file AliHFInvMassFitter.h.

Referenced by CreateTotalFitFunction(), DrawHere(), MassFitter(), PrintFunctions(), and ~AliHFInvMassFitter().

Double_t AliHFInvMassFitter::fSecMass

private

fit parameters in 2nd peak fit function

Definition at line 193 of file AliHFInvMassFitter.h.

Referenced by CreateSecondPeakFunction(), FitFunction4Bkg(), IncludeSecondGausPeak(), and MassFitter().

Bool_t AliHFInvMassFitter::fSecondPeak

private

fit function for reflections

Definition at line 191 of file AliHFInvMassFitter.h.

Referenced by CreateTotalFitFunction(), FitFunction4Bkg(), FitFunction4Mass(), IncludeSecondGausPeak(), MassFitter(), and SetNumberOfParams().

Double_t AliHFInvMassFitter::fSecWidth

private

position of the 2nd peak

Definition at line 194 of file AliHFInvMassFitter.h.

Referenced by CreateSecondPeakFunction(), FitFunction4Bkg(), IncludeSecondGausPeak(), and MassFitter().

TF1* AliHFInvMassFitter::fSigFunc

private

err on signal gaussian integral

Definition at line 178 of file AliHFInvMassFitter.h.

Referenced by CreateTotalFitFunction(), GetSignalFunc(), MassFitter(), Signal(), and ~AliHFInvMassFitter().

Double_t AliHFInvMassFitter::fSigmaSgn

private

unc on signal gaussian mean value

Definition at line 166 of file AliHFInvMassFitter.h.

Referenced by BackFitFuncPolHelper(), Background(), CreateSignalFitFunction(), FitFunction4Bkg(), GetRawYieldBinCounting(), GetSigma(), MassFitter(), PrepareHighPolFit(), SetInitialGaussianSigma(), Signal(), and Significance().

Double_t AliHFInvMassFitter::fSigmaSgnErr

private

signal gaussian sigma

Definition at line 167 of file AliHFInvMassFitter.h.

Referenced by GetSigmaUncertainty(), and MassFitter().

Bool_t AliHFInvMassFitter::fSmoothRfl

private

histogram with reflection template

Definition at line 187 of file AliHFInvMassFitter.h.

Referenced by FitFunction4Refl(), and SetSmoothReflectionTemplate().

TF1* AliHFInvMassFitter::fTotFunc

private

fit function for second peak

Definition at line 198 of file AliHFInvMassFitter.h.

Referenced by DrawHere(), GetChiSquare(), GetFitProbability(), GetMassFunc(), GetReducedChiSquare(), GetResidualsAndPulls(), MassFitter(), PrintFunctions(), and ~AliHFInvMassFitter().

Int_t AliHFInvMassFitter::fTypeOfFit4Bkg

private

upper mass limit

Definition at line 159 of file AliHFInvMassFitter.h.

Referenced by CreateBackgroundFitFunction(), FitFunction4Bkg(), MassFitter(), SetFitFunctions(), SetNumberOfParams(), and SetPolDegreeForBackgroundFit().

Int_t AliHFInvMassFitter::fTypeOfFit4Sgn

private

pdg value of particle mass

Definition at line 163 of file AliHFInvMassFitter.h.

Referenced by CreateSignalFitFunction(), FitFunction4Sgn(), SetFitFunctions(), and SetNumberOfParams().

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

PWGHF/vertexingHF/AliHFInvMassFitter.h
PWGHF/vertexingHF/AliHFInvMassFitter.cxx

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