TDecay Class Reference

Detailed Description

TDecay is a class for fitting halflives during nuclear decay A TDecay consists of multiple TDecayChains, where a TDecayChain is starts at a specific nucleus which has a population before the decay fit takes place. This could be a nucleus with a daughter. One TDecayChain would consist of just the daughter while the the other decay chain would be the parent and daughter. TDecayChains are made up of multiple TSingleDecays which holds the nucleus specific information such as name, id, halflife and intensity. When any of the above classes are fit to a histogram, they use a TDecayFit. The TDecayFit is a a TF1 with extra information such as the class that was used to create the TDecayFit. Furthermore, the function DrawComponents() can be used to draw the activites of the individual nuclei involved in the TDecayFit.

Definition at line 333 of file TDecay.h.

Public Member Functions
	TDecay ()=default
	TDecay (const TDecay &)=default
	TDecay (std::vector< TDecayChain * > chainList)
	TDecay (TDecay &&) noexcept=default
	~TDecay ()=default
void	AddChain (TDecayChain *chain)
Double_t	DecayFit (Double_t *dim, Double_t *par)
void	Draw (Option_t *opt="") override
void	DrawBackground (Option_t *opt="")
void	DrawComponents (Option_t *opt="", Bool_t color_flag=true) override
TFitResultPtr	Fit (TH1 *fithist, Option_t *opt="")
void	FixBackground ()
void	FixBackground (const Double_t &background)
void	FixHalfLife (Int_t Id, Double_t halflife)
Double_t	GetBackground () const
Double_t	GetBackgroundError () const
TDecayChain *	GetChain (UInt_t idx)
TDecayFit *	GetFitFunc ()
TGraph *	GetResiduals ()
TDecay &	operator= (const TDecay &)=default
TDecay &	operator= (TDecay &&) noexcept=default
void	Print (Option_t *opt="") const override
void	PrintMap () const
void	ReleaseBackground ()
void	SetBackground (Double_t background)
void	SetBackgroundLimits (const Double_t &low, const Double_t &high)
void	SetDecayRateLimits (Int_t Id, Double_t low, Double_t high)
void	SetHalfLife (Int_t Id, Double_t halflife)
void	SetHalfLifeLimits (Int_t Id, Double_t low, Double_t high)
void	SetRange (Double_t xlow, Double_t xhigh)

Private Member Functions
Double_t	ComponentFunc (Double_t *dim, Double_t *par)
const TDecayFit *	GetFitFunction () override
void	RemakeMap ()
void	SetParameters ()

Private Attributes
std::vector< TDecayChain * >	fChainList
std::map< Int_t, std::vector< TSingleDecay * > >	fDecayMap
TDecayFit *	fFitFunc {nullptr}

Inheritance diagram for TDecay:

Collaboration diagram for TDecay:

Constructor & Destructor Documentation

TDecay() [1/4]

TDecay::TDecay ( )

default

TDecay() [2/4]

TDecay::TDecay ( std::vector< TDecayChain * > chainList )

explicit

Definition at line 620 of file TDecay.cxx.

References DecayFit(), fFitFunc, RemakeMap(), TDecayFit::SetDecay(), and SetParameters().

TDecay() [3/4]

TDecay::TDecay ( const TDecay & )

default

TDecay() [4/4]

TDecay::TDecay ( TDecay && )

defaultnoexcept

~TDecay()

TDecay::~TDecay ( )

default

Member Function Documentation

AddChain()

void TDecay::AddChain ( TDecayChain * chain )

inline

Definition at line 343 of file TDecay.h.

ComponentFunc()

Double_t TDecay::ComponentFunc ( Double_t * dim, Double_t * par )

private

Function for drawing summed components.

This function takes 1 parameter, the decay Id.

Definition at line 755 of file TDecay.cxx.

References fDecayMap.

Referenced by DrawComponents().

DecayFit()

Double_t TDecay::DecayFit	(	Double_t *	dim,
		Double_t *	par )

This fits the total activity caused by the entire chain.

Definition at line 640 of file TDecay.cxx.

References fChainList, and fFitFunc.

Referenced by TDecay(), and SetParameters().

Draw()

void TDecay::Draw ( Option_t * opt = "" )

override

Definition at line 707 of file TDecay.cxx.

References fFitFunc, and SetParameters().

DrawBackground()

void TDecay::DrawBackground

(

Option_t *

opt = ""

)

Definition at line 791 of file TDecay.cxx.

References fFitFunc, and GetBackground().

Referenced by DrawComponents().

DrawComponents()

void TDecay::DrawComponents ( Option_t * opt = "", Bool_t color_flag = true )

overridevirtual

Loop over all of the ids and draw them seperately on the pad

Reimplemented from TVirtualDecay.

Definition at line 769 of file TDecay.cxx.

References ComponentFunc(), DrawBackground(), fDecayMap, and fFitFunc.

Fit()

TFitResultPtr TDecay::Fit	(	TH1 *	fithist,
		Option_t *	opt = "" )

Definition at line 662 of file TDecay.cxx.

References fChainList, fFitFunc, TDecayFit::Fit(), TLMFitter::Fit(), TDecayFit::GetDecay(), and SetParameters().

FixBackground() [1/2]

void TDecay::FixBackground ( )

inline

Definition at line 368 of file TDecay.h.

FixBackground() [2/2]

void TDecay::FixBackground ( const Double_t & background )

inline

Definition at line 367 of file TDecay.h.

FixHalfLife()

void TDecay::FixHalfLife ( Int_t Id, Double_t halflife )

inline

Definition at line 350 of file TDecay.h.

GetBackground()

Double_t TDecay::GetBackground ( ) const

inline

Definition at line 361 of file TDecay.h.

Referenced by DrawBackground(), and Print().

GetBackgroundError()

Double_t TDecay::GetBackgroundError ( ) const

inline

Definition at line 362 of file TDecay.h.

Referenced by Print().

GetChain()

TDecayChain * TDecay::GetChain

(

UInt_t

idx

)

Definition at line 629 of file TDecay.cxx.

References fChainList, and SetParameters().

GetFitFunc()

TDecayFit * TDecay::GetFitFunc ( )

inline

Definition at line 359 of file TDecay.h.

GetFitFunction()

const TDecayFit * TDecay::GetFitFunction ( )

inlineoverrideprivatevirtual

Implements TVirtualDecay.

Definition at line 378 of file TDecay.h.

GetResiduals()

TGraph * TDecay::GetResiduals ( )

inline

Definition at line 372 of file TDecay.h.

operator=() [1/2]

TDecay & TDecay::operator= ( const TDecay & )

default

operator=() [2/2]

TDecay & TDecay::operator= ( TDecay && )

defaultnoexcept

Print()

void TDecay::Print ( Option_t * opt = "" ) const

overridevirtual

Implements TVirtualDecay.

Definition at line 842 of file TDecay.cxx.

References fDecayMap, GetBackground(), and GetBackgroundError().

PrintMap()

void TDecay::PrintMap

(

)

const

Definition at line 853 of file TDecay.cxx.

References fDecayMap.

ReleaseBackground()

void TDecay::ReleaseBackground ( )

inline

Definition at line 370 of file TDecay.h.

RemakeMap()

void TDecay::RemakeMap ( )

private

Definition at line 872 of file TDecay.cxx.

References fChainList, and fDecayMap.

Referenced by TDecay(), and SetParameters().

SetBackground()

void TDecay::SetBackground ( Double_t background )

inline

Definition at line 360 of file TDecay.h.

SetBackgroundLimits()

void TDecay::SetBackgroundLimits ( const Double_t & low, const Double_t & high )

inline

Definition at line 369 of file TDecay.h.

SetDecayRateLimits()

void TDecay::SetDecayRateLimits	(	Int_t	Id,
		Double_t	low,
		Double_t	high )

Definition at line 829 of file TDecay.cxx.

References fDecayMap.

SetHalfLife()

void TDecay::SetHalfLife	(	Int_t	Id,
		Double_t	halflife )

Definition at line 803 of file TDecay.cxx.

References fDecayMap.

SetHalfLifeLimits()

void TDecay::SetHalfLifeLimits	(	Int_t	Id,
		Double_t	low,
		Double_t	high )

Definition at line 816 of file TDecay.cxx.

References fDecayMap.

SetParameters()

void TDecay::SetParameters ( )

private

Definition at line 713 of file TDecay.cxx.

References DecayFit(), fChainList, fDecayMap, fFitFunc, TDecayFit::GetDecay(), RemakeMap(), and TDecayFit::SetDecay().

Referenced by TDecay(), Draw(), Fit(), and GetChain().

SetRange()

void TDecay::SetRange	(	Double_t	xlow,
		Double_t	xhigh )

Definition at line 864 of file TDecay.cxx.

References fChainList, and fFitFunc.

Member Data Documentation

fChainList

std::vector<TDecayChain*> TDecay::fChainList

private

Definition at line 380 of file TDecay.h.

Referenced by DecayFit(), Fit(), GetChain(), RemakeMap(), SetParameters(), and SetRange().

fDecayMap

std::map<Int_t, std::vector<TSingleDecay*> > TDecay::fDecayMap

private

Definition at line 382 of file TDecay.h.

Referenced by ComponentFunc(), DrawComponents(), Print(), PrintMap(), RemakeMap(), SetDecayRateLimits(), SetHalfLife(), SetHalfLifeLimits(), and SetParameters().

fFitFunc

TDecayFit* TDecay::fFitFunc {nullptr}

private

Definition at line 381 of file TDecay.h.

Referenced by TDecay(), DecayFit(), Draw(), DrawBackground(), DrawComponents(), Fit(), SetParameters(), and SetRange().