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Laura++  v1r0
A maximum likelihood fitting package for performing Dalitz-plot analysis.

Class for defining the simple Breit-Wigner resonance model. More...

#include <LauBreitWignerRes.hh>

Inheritance diagram for LauBreitWignerRes:
LauAbsResonance

Public Member Functions

 LauBreitWignerRes (TString resName, Double_t resMass, Double_t resWidth, Int_t resSpin, Int_t resCharge, Int_t resPairAmpInt, const LauDaughters *daughters)
 Constructor. More...
 
virtual ~LauBreitWignerRes ()
 Destructor. More...
 
virtual void initialise ()
 Initialise the model. More...
 
virtual
LauAbsResonance::LauResonanceModel 
getResonanceModel () const
 Get the resonance model type. More...
 
- Public Member Functions inherited from LauAbsResonance
 LauAbsResonance (const TString &resName, Double_t resMass, Double_t resWidth, Int_t resSpin, Int_t resCharge, Int_t resPairAmpInt, const LauDaughters *daughters)
 Constructor. More...
 
virtual ~LauAbsResonance ()
 Destructor. More...
 
virtual LauComplex amplitude (const LauKinematics *kinematics)
 Calculate the complex amplitude. More...
 
const TString & getResonanceName () const
 Get the name of the resonance. More...
 
Int_t getPairInt () const
 Get the integer to identify which DP axis the resonance belongs to. More...
 
Int_t getSpin () const
 Get the spin of the resonance. More...
 
Int_t getCharge () const
 Get the charge of the resonance. More...
 
Double_t getMass () const
 Get the mass of the resonance. More...
 
Double_t getWidth () const
 Get the width of the resonance. More...
 
Bool_t flipHelicity () const
 Get the helicity flip flag. More...
 
void flipHelicity (Bool_t boolean)
 Set the helicity flip flag. More...
 
void changeResonance (Double_t newMass, Double_t newWidth, Int_t newSpin)
 Allow the mass, width and spin of the resonance to be changed. More...
 
virtual void setResonanceParameter (Double_t value, const TString &name)
 Set the updated parameters from changeResonance. More...
 

Protected Member Functions

virtual LauComplex resAmp (Double_t mass, Double_t spinTerm)
 Complex resonant amplitude. More...
 
- Protected Member Functions inherited from LauAbsResonance
TString getNameParent () const
 Get the name of the parent particle. More...
 
TString getNameDaug1 () const
 Get the name of the first daughter of the resonance. More...
 
TString getNameDaug2 () const
 Get the name of the second daughter of the resonance. More...
 
TString getNameBachelor () const
 Get the name of the daughter that does not originate form the resonance. More...
 
Double_t getMassParent () const
 Get the parent particle mass. More...
 
Double_t getMassDaug1 () const
 Get the mass of daughter 1. More...
 
Double_t getMassDaug2 () const
 Get the mass of daughter 2. More...
 
Double_t getMassBachelor () const
 Get the mass of the bachelor daughter. More...
 
Int_t getChargeParent () const
 Get the Charge of the parent particle. More...
 
Int_t getChargeDaug1 () const
 Get the charge of daughter 1. More...
 
Int_t getChargeDaug2 () const
 Get the charge of daughter 2. More...
 
Int_t getChargeBachelor () const
 Get the charge of the bachelor daughter. More...
 
Double_t getQ () const
 Get the current value of the daughter momentum in the resonance rest frame. More...
 
Double_t getP () const
 Get the current value of the bachelor momentum in the resonance rest frame. More...
 
Double_t getPstar () const
 Get the current value of the bachelor momentum in the parent rest frame. More...
 
const LauDaughtersgetDaughters () const
 Access the daughters object. More...
 

Additional Inherited Members

- Public Types inherited from LauAbsResonance
enum  LauResonanceModel {
  BW, RelBW, Flatte, Sigma,
  Kappa, Dabba, LASS_BW, LASS_NR,
  LASS, NRModel, BelleNR, GS,
  KMatrix
}
 Define the allowed resonance types. More...
 
enum  BarrierType { BWBarrier, BWPrimeBarrier, ExpBarrier }
 Define the allowed types of barrier factors. More...
 

Detailed Description

Class for defining the simple Breit-Wigner resonance model.

Class for defining the simple Breit-Wigner resonance model. This is a non-relativistic Breit-Wigner, with no mass-dependent width or form factors.

Definition at line 31 of file LauBreitWignerRes.hh.

Constructor & Destructor Documentation

LauBreitWignerRes::LauBreitWignerRes ( TString  resName,
Double_t  resMass,
Double_t  resWidth,
Int_t  resSpin,
Int_t  resCharge,
Int_t  resPairAmpInt,
const LauDaughters daughters 
)

Constructor.

Parameters
[in]resNamethe name of the resonance
[in]resMassthe mass of the resonance
[in]resWidththe width of the resonance
[in]resSpinthe spin of the resonance
[in]resChargethe charge of the resonance
[in]resPairAmpIntthe number of the daughter not produced by the resonance
[in]daughtersthe daughter particles

Definition at line 27 of file LauBreitWignerRes.cc.

LauBreitWignerRes::~LauBreitWignerRes ( )
virtual

Destructor.

Definition at line 33 of file LauBreitWignerRes.cc.

Member Function Documentation

virtual LauAbsResonance::LauResonanceModel LauBreitWignerRes::getResonanceModel ( ) const
inlinevirtual

Get the resonance model type.

Returns
the resonance model type

Implements LauAbsResonance.

Definition at line 58 of file LauBreitWignerRes.hh.

void LauBreitWignerRes::initialise ( )
virtual

Initialise the model.

Implements LauAbsResonance.

Definition at line 37 of file LauBreitWignerRes.cc.

LauComplex LauBreitWignerRes::resAmp ( Double_t  mass,
Double_t  spinTerm 
)
protectedvirtual

Complex resonant amplitude.

Parameters
[in]massappropriate invariant mass for the resonance
[in]spinTermZemach spin term

Implements LauAbsResonance.

Definition at line 41 of file LauBreitWignerRes.cc.


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