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Laura++  v2r2p1
A maximum likelihood fitting package for performing Dalitz-plot analysis.

Class for defining the Dabba resonance model. More...

#include <LauDabbaRes.hh>

Inheritance diagram for LauDabbaRes:
LauAbsResonance

Public Member Functions

 LauDabbaRes (TString resName, Double_t resMass, Double_t resWidth, Int_t resSpin, Int_t resCharge, Int_t resPairAmpInt, const LauDaughters *daughters)
 Constructor. More...
 
virtual ~LauDabbaRes ()
 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

void setConstants (Double_t b, Double_t alpha, Double_t beta)
 Set the parameter values. More...
 
void setBValue (const Double_t b)
 Set the b parameter. More...
 
void setAlphaValue (const Double_t alpha)
 Set the alpha parameter. More...
 
void setBetaValue (const Double_t beta)
 Set the beta parameter. More...
 
Double_t getBValue () const
 Get the b parameter value. More...
 
Double_t getAlphaValue () const
 Get the alpha parameter value. More...
 
Double_t getBetaValue () const
 Get the beta parameter value. More...
 
virtual LauComplex resAmp (Double_t mass, Double_t spinTerm)
 Complex resonant amplitude. More...
 
void checkDaughterTypes () const
 Check that the daughter particles are D and pi. 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 mSumSq_
 Defined as mD + mPi all squared. More...
 
Double_t sAdler_
 Defined as mD*mD - 0.5*mPi*mPi. More...
 
Double_t b_
 Constant factor. More...
 
Double_t alpha_
 Constant factor. More...
 
Double_t beta_
 Constant factor. 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 Dabba resonance model.

Class for defining the Dabba resonance model Formulae and data values from arXiv:0901.2217 - author D.V.Bugg

Definition at line 31 of file LauDabbaRes.hh.

Constructor & Destructor Documentation

LauDabbaRes::LauDabbaRes ( 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 31 of file LauDabbaRes.cc.

LauDabbaRes::~LauDabbaRes ( )
virtual

Destructor.

Definition at line 42 of file LauDabbaRes.cc.

Member Function Documentation

void LauDabbaRes::checkDaughterTypes ( ) const
protected

Check that the daughter particles are D and pi.

Definition at line 74 of file LauDabbaRes.cc.

Double_t LauDabbaRes::getAlphaValue ( ) const
inlineprotected

Get the alpha parameter value.

Returns
value of the alpha parameter

Definition at line 104 of file LauDabbaRes.hh.

Double_t LauDabbaRes::getBetaValue ( ) const
inlineprotected

Get the beta parameter value.

Returns
value of the beta parameter

Definition at line 110 of file LauDabbaRes.hh.

Double_t LauDabbaRes::getBValue ( ) const
inlineprotected

Get the b parameter value.

Returns
value of the b parameter

Definition at line 98 of file LauDabbaRes.hh.

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

Get the resonance model type.

Returns
the resonance model type

Implements LauAbsResonance.

Definition at line 58 of file LauDabbaRes.hh.

void LauDabbaRes::initialise ( )
virtual

Initialise the model.

Implements LauAbsResonance.

Definition at line 46 of file LauDabbaRes.cc.

LauComplex LauDabbaRes::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 93 of file LauDabbaRes.cc.

void LauDabbaRes::setAlphaValue ( const Double_t  alpha)
inlineprotected

Set the alpha parameter.

Parameters
[in]alphanew value for alpha parameter

Definition at line 86 of file LauDabbaRes.hh.

void LauDabbaRes::setBetaValue ( const Double_t  beta)
inlineprotected

Set the beta parameter.

Parameters
[in]betanew value for beta parameter

Definition at line 92 of file LauDabbaRes.hh.

void LauDabbaRes::setBValue ( const Double_t  b)
inlineprotected

Set the b parameter.

Parameters
[in]bnew value for b parameter

Definition at line 80 of file LauDabbaRes.hh.

void LauDabbaRes::setConstants ( Double_t  b,
Double_t  alpha,
Double_t  beta 
)
protected

Set the parameter values.

Parameters
[in]bconstant factor
[in]alphaconstant factor
[in]betaconstant factor

Definition at line 68 of file LauDabbaRes.cc.

void LauDabbaRes::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 128 of file LauDabbaRes.cc.

Member Data Documentation

Double_t LauDabbaRes::alpha_
private

Constant factor.

Definition at line 130 of file LauDabbaRes.hh.

Double_t LauDabbaRes::b_
private

Constant factor.

Definition at line 128 of file LauDabbaRes.hh.

Double_t LauDabbaRes::beta_
private

Constant factor.

Definition at line 132 of file LauDabbaRes.hh.

Double_t LauDabbaRes::mSumSq_
private

Defined as mD + mPi all squared.

Definition at line 124 of file LauDabbaRes.hh.

Double_t LauDabbaRes::sAdler_
private

Defined as mD*mD - 0.5*mPi*mPi.

Definition at line 126 of file LauDabbaRes.hh.


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