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Laura++  v2r2
A maximum likelihood fitting package for performing Dalitz-plot analysis.

Class for defining the Belle nonresonant model. More...

#include <LauBelleNR.hh>

Inheritance diagram for LauBelleNR:
LauAbsResonance

Public Member Functions

 LauBelleNR (const TString &resName, const LauAbsResonance::LauResonanceModel resType, const Double_t resMass, const Double_t resWidth, const Int_t resSpin, const Int_t resCharge, const Int_t resPairAmpInt, const LauDaughters *daughters)
 Constructor. More...
 
virtual ~LauBelleNR ()
 Destructor. More...
 
virtual void initialise ()
 Initialise the model. More...
 
virtual
LauAbsResonance::LauResonanceModel 
getResonanceModel () const
 Get the resonance model type. More...
 
virtual void setResonanceParameter (const TString &name, const Double_t value)
 Set value of the various parameters. 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...
 
Bool_t ignoreMomenta () const
 Get the ignore momenta flag. More...
 
void ignoreMomenta (Bool_t boolean)
 Set the ignore p_ and q_ flag. More...
 
void changeResonance (const Double_t newMass, const Double_t newWidth, const Int_t newSpin)
 Allow the mass, width and spin of the resonance to be changed. More...
 
virtual void setBarrierRadii (const Double_t resRadius, const Double_t parRadius, const BarrierType type)
 Set the form factor model and parameters. More...
 

Protected Member Functions

virtual void setAlpha (Double_t alpha)
 Set the parameter alpha, the effective range. More...
 
virtual Double_t getAlpha () const
 Get the effective range parameter. More...
 
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...
 
Double_t getParBWRadius () const
 Get the radius of the centrifugal barrier for the parent decay. More...
 
Double_t getResBWRadius () const
 Get the radius of the centrifugal barrier for the resonance decay. More...
 
BarrierType getBarrierType () const
 Get the form factor model. More...
 
const LauDaughtersgetDaughters () const
 Access the daughters object. More...
 

Private Attributes

Double_t alpha_
 The range parameter. More...
 
LauAbsResonance::LauResonanceModel model_
 The model to use. More...
 

Additional Inherited Members

- Public Types inherited from LauAbsResonance
enum  LauResonanceModel {
  BW, RelBW, GS, Flatte,
  Sigma, Kappa, Dabba, LASS,
  LASS_BW, LASS_NR, KMatrix, FlatNR,
  NRModel, BelleNR, PowerLawNR, BelleSymNR,
  TaylorNR, PolNR
}
 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 Belle nonresonant model.

Defines the nonresonant model from the Belle collaboration. arXiv:hep-ex/0412066

Definition at line 33 of file LauBelleNR.hh.

Constructor & Destructor Documentation

LauBelleNR::LauBelleNR ( const TString &  resName,
const LauAbsResonance::LauResonanceModel  resType,
const Double_t  resMass,
const Double_t  resWidth,
const Int_t  resSpin,
const Int_t  resCharge,
const Int_t  resPairAmpInt,
const LauDaughters daughters 
)

Constructor.

Parameters
[in]resNamethe name of the resonance
[in]resTypethe model 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 25 of file LauBelleNR.cc.

LauBelleNR::~LauBelleNR ( )
virtual

Destructor.

Definition at line 34 of file LauBelleNR.cc.

Member Function Documentation

virtual Double_t LauBelleNR::getAlpha ( ) const
inlineprotectedvirtual

Get the effective range parameter.

Returns
the effective range parameter

Definition at line 82 of file LauBelleNR.hh.

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

Get the resonance model type.

Returns
the resonance model type

Implements LauAbsResonance.

Definition at line 62 of file LauBelleNR.hh.

void LauBelleNR::initialise ( )
virtual

Initialise the model.

Implements LauAbsResonance.

Definition at line 38 of file LauBelleNR.cc.

LauComplex LauBelleNR::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 54 of file LauBelleNR.cc.

virtual void LauBelleNR::setAlpha ( Double_t  alpha)
inlineprotectedvirtual

Set the parameter alpha, the effective range.

Parameters
[in]alphathe new effective range parameter value

Definition at line 76 of file LauBelleNR.hh.

void LauBelleNR::setResonanceParameter ( const TString &  name,
const Double_t  value 
)
virtual

Set value of the various parameters.

Parameters
[in]namethe name of the parameter to be changed
[in]valuethe new parameter value

Reimplemented from LauAbsResonance.

Definition at line 69 of file LauBelleNR.cc.

Member Data Documentation

Double_t LauBelleNR::alpha_
private

The range parameter.

Definition at line 93 of file LauBelleNR.hh.

LauAbsResonance::LauResonanceModel LauBelleNR::model_
private

The model to use.

Definition at line 96 of file LauBelleNR.hh.


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