TDecay Class Reference

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 331 of file TDecay.h.

Public Member Functions
	TDecay ()
	TDecay (std::vector< TDecayChain *> chainlist)
	~TDecay () override
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 (const Double_t &background)
void	FixBackground ()
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 ()
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)
TDecayFit const *	GetFitFunction () override
void	RemakeMap ()
void	SetParameters ()

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

#include <TDecay.h>

Inheritance diagram for TDecay:

Collaboration diagram for TDecay:

Constructor & Destructor Documentation

TDecay() [1/2]

TDecay::TDecay ( )

inline

Definition at line 333 of file TDecay.h.

TDecay() [2/2]

TDecay::TDecay

(

std::vector< TDecayChain *>

chainlist

)

Definition at line 652 of file TDecay.cxx.

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

~TDecay()

TDecay::~TDecay ( )

override

Definition at line 662 of file TDecay.cxx.

Member Function Documentation

AddChain()

void TDecay::AddChain ( TDecayChain *  chain )

inline

Definition at line 337 of file TDecay.h.

References fChainList.

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 796 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 678 of file TDecay.cxx.

References fChainList, and fFitFunc.

Referenced by SetParameters(), and TDecay().

Draw()

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

override

Definition at line 745 of file TDecay.cxx.

References fFitFunc, and SetParameters().

DrawBackground()

void TDecay::DrawBackground

(

Option_t *

opt = ""

)

Definition at line 831 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 810 of file TDecay.cxx.

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

Fit()

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

Definition at line 700 of file TDecay.cxx.

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

FixBackground() [1/2]

void TDecay::FixBackground ( const Double_t &  background )

inline

Definition at line 361 of file TDecay.h.

References fFitFunc.

FixBackground() [2/2]

void TDecay::FixBackground ( )

inline

Definition at line 362 of file TDecay.h.

References fFitFunc, and GetBackground().

FixHalfLife()

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

inline

Definition at line 344 of file TDecay.h.

References SetHalfLife(), and SetHalfLifeLimits().

GetBackground()

Double_t TDecay::GetBackground ( ) const

inline

Definition at line 355 of file TDecay.h.

References fFitFunc.

Referenced by DrawBackground(), FixBackground(), and Print().

GetBackgroundError()

Double_t TDecay::GetBackgroundError ( ) const

inline

Definition at line 356 of file TDecay.h.

References fFitFunc.

Referenced by Print().

GetChain()

TDecayChain * TDecay::GetChain

(

UInt_t

idx

)

Definition at line 667 of file TDecay.cxx.

References fChainList, and SetParameters().

GetFitFunc()

TDecayFit* TDecay::GetFitFunc ( )

inline

Definition at line 353 of file TDecay.h.

References fFitFunc.

GetFitFunction()

TDecayFit const* TDecay::GetFitFunction ( )

inlineoverrideprivatevirtual

Implements TVirtualDecay.

Definition at line 372 of file TDecay.h.

References fFitFunc.

GetResiduals()

TGraph* TDecay::GetResiduals ( )

inline

Definition at line 366 of file TDecay.h.

References fFitFunc, and TDecayFit::GetResiduals().

Print()

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

overridevirtual

Implements TVirtualDecay.

Definition at line 881 of file TDecay.cxx.

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

PrintMap()

void TDecay::PrintMap

(

)

const

Definition at line 891 of file TDecay.cxx.

References fDecayMap.

ReleaseBackground()

void TDecay::ReleaseBackground ( )

inline

Definition at line 364 of file TDecay.h.

References fFitFunc.

RemakeMap()

void TDecay::RemakeMap ( )

private

Definition at line 910 of file TDecay.cxx.

References fChainList, and fDecayMap.

Referenced by SetParameters(), and TDecay().

SetBackground()

void TDecay::SetBackground ( Double_t  background )

inline

Definition at line 354 of file TDecay.h.

References fFitFunc.

SetBackgroundLimits()

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

inline

Definition at line 363 of file TDecay.h.

References fFitFunc.

SetDecayRateLimits()

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

Definition at line 868 of file TDecay.cxx.

References fDecayMap.

SetHalfLife()

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

Definition at line 842 of file TDecay.cxx.

References fDecayMap.

Referenced by FixHalfLife().

SetHalfLifeLimits()

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

Definition at line 855 of file TDecay.cxx.

References fDecayMap.

Referenced by FixHalfLife().

SetParameters()

void TDecay::SetParameters ( )

private

Definition at line 751 of file TDecay.cxx.

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

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

SetRange()

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

Definition at line 902 of file TDecay.cxx.

References fChainList, and fFitFunc.

Member Data Documentation

fChainList

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

private

Definition at line 375 of file TDecay.h.

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

fDecayMap

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

private

Definition at line 377 of file TDecay.h.

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

fFitFunc

TDecayFit* TDecay::fFitFunc

private

Definition at line 376 of file TDecay.h.

Referenced by DecayFit(), Draw(), DrawBackground(), DrawComponents(), Fit(), FixBackground(), GetBackground(), GetBackgroundError(), GetFitFunc(), GetFitFunction(), GetResiduals(), ReleaseBackground(), SetBackground(), SetBackgroundLimits(), SetParameters(), SetRange(), and TDecay().