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Laura++  v3r5
A maximum likelihood fitting package for performing Dalitz-plot analysis.

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

#include <LauFlatteRes.hh>

Inheritance diagram for LauFlatteRes:
LauAbsResonance

Public Member Functions

 LauFlatteRes (LauResonanceInfo *resInfo, const Int_t resPairAmpInt, const LauDaughters *daughters)
 Constructor. More...
 
virtual ~LauFlatteRes ()
 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 a resonance parameter. More...
 
virtual void floatResonanceParameter (const TString &name)
 Allow the various parameters to float in the fit. More...
 
virtual LauParametergetResonanceParameter (const TString &name)
 Access the given resonance parameter. More...
 
virtual const std::vector
< LauParameter * > & 
getFloatingParameters ()
 Retrieve the resonance parameters, e.g. so that they can be loaded into a fit. More...
 
- Public Member Functions inherited from LauAbsResonance
 LauAbsResonance (LauResonanceInfo *resInfo, const Int_t resPairAmpInt, const LauDaughters *daughters)
 Constructor (for use by standard resonances) More...
 
 LauAbsResonance (const TString &resName, const Int_t resPairAmpInt, const LauDaughters *daughters)
 Constructor (for use by K-matrix components) More...
 
virtual ~LauAbsResonance ()
 Destructor. More...
 
virtual LauComplex amplitude (const LauKinematics *kinematics)
 Calculate the complex amplitude. More...
 
LauSpinType getSpinType () const
 Get the spin type. More...
 
const TString & getResonanceName () const
 Get the name of the resonance. More...
 
const TString & getSanitisedName () 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...
 
LauParametergetMassPar ()
 Get the mass parameter of the resonance. More...
 
LauParametergetWidthPar ()
 Get the width parameter of the resonance. More...
 
virtual Bool_t preSymmetrised () const
 Is the amplitude pre-symmetrised? More...
 
Bool_t flipHelicity () const
 Get the helicity flip flag. More...
 
void flipHelicity (const Bool_t boolean)
 Set the helicity flip flag. More...
 
Bool_t ignoreMomenta () const
 Get the ignore momenta flag. More...
 
void ignoreMomenta (const Bool_t boolean)
 Set the ignore momenta flag. More...
 
Bool_t ignoreSpin () const
 Get the ignore spin flag. More...
 
void ignoreSpin (const Bool_t boolean)
 Set the ignore spin flag. More...
 
Bool_t ignoreBarrierScaling () const
 Get the ignore barrier factor scaling flag. More...
 
void ignoreBarrierScaling (const Bool_t boolean)
 Set the ignore barrier factor scaling 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...
 
void changeBWBarrierRadii (const Double_t resRadius, const Double_t parRadius)
 Allow the Blatt-Weisskopf radius for the resonance and parent factors to be changed. More...
 
void fixMass (const Bool_t parFixed)
 Fix or release the resonance mass. More...
 
void fixWidth (const Bool_t parFixed)
 Fix or release the resonance width. More...
 
Bool_t fixMass () const
 Get the status of resonance mass (fixed or released) More...
 
Bool_t fixWidth () const
 Get the status of resonance width (fixed or released) More...
 
void setSpinType (const LauSpinType spinType)
 Set the spin formalism to be used. More...
 
void setBarrierRadii (LauBlattWeisskopfFactor *resFactor, LauBlattWeisskopfFactor *parFactor)
 Set the form factor model and parameters. More...
 
void fixBarrierRadii (const Bool_t fixResRadius, const Bool_t fixParRadius)
 Fix or release the Blatt-Weisskopf barrier radii. More...
 
Bool_t fixResRadius () const
 Get the status of resonance barrier radius (fixed or released) More...
 
Bool_t fixParRadius () const
 Get the status of parent barrier radius (fixed or released) More...
 
Double_t getResRadius () const
 Get the radius of the resonance barrier factor. More...
 
Double_t getParRadius () const
 Get the radius of the parent barrier factor. More...
 

Protected Member Functions

void setg1Parameter (const Double_t g1)
 Set the g1 parameter. More...
 
void setg2Parameter (const Double_t g2)
 Set the g2 parameter. More...
 
Double_t getg1Parameter () const
 Get the g1 parameter. More...
 
Double_t getg2Parameter () const
 Get the g2 parameter. More...
 
Double_t fixg1Parameter () const
 See if the g1 parameter is fixed or floating. More...
 
Double_t fixg2Parameter () const
 See if the g2 parameter is fixed or floating. 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 getCovFactor () const
 Get the current value of the full spin-dependent covariant factor. More...
 
LauBlattWeisskopfFactorgetParBWFactor ()
 Get the centrifugal barrier for the parent decay. More...
 
const LauBlattWeisskopfFactorgetParBWFactor () const
 
LauBlattWeisskopfFactorgetResBWFactor ()
 Get the centrifugal barrier for the resonance decay. More...
 
const LauBlattWeisskopfFactorgetResBWFactor () const
 
LauResonanceInfogetResInfo () const
 Access the resonance info object. More...
 
const LauDaughtersgetDaughters () const
 Access the daughters object. More...
 
Double_t calcZemachSpinFactor (const Double_t pProd) const
 Calculate the amplitude spin term using the Zemach tensor formalism. More...
 
Double_t calcCovSpinFactor (const Double_t pProd)
 Calculate the amplitude spin term using the covariant tensor formalism. More...
 
void calcCovFactor (const Double_t erm)
 Calculate the spin-dependent covariant factor. More...
 
Double_t calcLegendrePoly () const
 Calculate the Legendre polynomial for the spin factor. More...
 
Double_t calcLegendrePoly (const Double_t cosHel)
 Calculate the Legendre polynomial for the spin factor (specifying the cosHel value) More...
 
void clearFloatingParameters ()
 Clear list of floating parameters. More...
 
void addFloatingParameter (LauParameter *param)
 Add parameter to the list of floating parameters. More...
 
std::vector< LauParameter * > & getParameters ()
 Access the list of floating parameters. More...
 

Private Member Functions

 LauFlatteRes (const LauFlatteRes &rhs)
 Copy constructor (not implemented) More...
 
LauFlatteResoperator= (const LauFlatteRes &rhs)
 Copy assignment operator (not implemented) More...
 

Private Attributes

LauParameterg1_
 Channel 1 coupling parameter. More...
 
LauParameterg2_
 Channel 1 coupling parameter. More...
 
Double_t mSumSq0_
 Channel 1, subchannel 1 invariant mass. More...
 
Double_t mSumSq1_
 Channel 1, subchannel 2 invariant mass. More...
 
Double_t mSumSq2_
 Channel 2, subchannel 1 invariant mass. More...
 
Double_t mSumSq3_
 Channel 2, subchannel 2 invariant mass. More...
 
Bool_t useAdlerTerm_
 Flag to turn on Adler term in the width. More...
 
Double_t sA_
 The Adler zero. More...
 
Bool_t absorbM0_
 Flag to specify whether the couplings absorb the m_0 factor. More...
 

Additional Inherited Members

- Public Types inherited from LauAbsResonance
enum  LauResonanceModel {
  BW, RelBW, GS, Flatte,
  Sigma, Kappa, Dabba, LASS,
  LASS_BW, LASS_NR, EFKLLM, KMatrix,
  FlatNR, NRModel, BelleNR, PowerLawNR,
  BelleSymNR, BelleSymNRNoInter, TaylorNR, PolNR,
  Pole, PolarFFNR, PolarFFSymNR, PolarFFSymNRNoInter,
  Rescattering, Rescattering2, RescatteringNoInter, MIPW_MagPhase,
  MIPW_RealImag, GaussIncoh, RhoOmegaMix_GS, RhoOmegaMix_RBW,
  RhoOmegaMix_GS_1, RhoOmegaMix_RBW_1
}
 Define the allowed resonance types. More...
 
enum  LauSpinType { Zemach_P, Zemach_Pstar, Covariant, Legendre }
 Define the allowed spin formalisms. More...
 
- Static Public Member Functions inherited from LauAbsResonance
static bool isIncoherentModel (LauResonanceModel model)
 Is the resonance model incoherent? More...
 

Detailed Description

Class for defining the Flatte resonance model.

Class for defining the Flatte resonance model. For use with the f_0(980) resonance.

Definition at line 45 of file LauFlatteRes.hh.

Constructor & Destructor Documentation

LauFlatteRes::LauFlatteRes ( LauResonanceInfo resInfo,
const Int_t  resPairAmpInt,
const LauDaughters daughters 
)

Constructor.

Parameters
[in]resInfothe object containing information on the resonance name, mass, width, spin, charge, etc.
[in]resPairAmpIntthe number of the daughter not produced by the resonance
[in]daughtersthe daughter particles

Definition at line 40 of file LauFlatteRes.cc.

LauFlatteRes::~LauFlatteRes ( )
virtual

Destructor.

Definition at line 204 of file LauFlatteRes.cc.

LauFlatteRes::LauFlatteRes ( const LauFlatteRes rhs)
private

Copy constructor (not implemented)

Member Function Documentation

Double_t LauFlatteRes::fixg1Parameter ( ) const
inlineprotected

See if the g1 parameter is fixed or floating.

Returns
kTRUE if the g1 parameter is fixed, kFALSE otherwise

Definition at line 123 of file LauFlatteRes.hh.

Double_t LauFlatteRes::fixg2Parameter ( ) const
inlineprotected

See if the g2 parameter is fixed or floating.

Returns
kTRUE if the g2 parameter is fixed, kFALSE otherwise

Definition at line 129 of file LauFlatteRes.hh.

void LauFlatteRes::floatResonanceParameter ( const TString &  name)
virtual

Allow the various parameters to float in the fit.

Parameters
[in]namethe name of the parameter to be floated

Reimplemented from LauAbsResonance.

Definition at line 323 of file LauFlatteRes.cc.

const std::vector< LauParameter * > & LauFlatteRes::getFloatingParameters ( )
virtual

Retrieve the resonance parameters, e.g. so that they can be loaded into a fit.

Returns
floating parameters of the resonance

Reimplemented from LauAbsResonance.

Definition at line 288 of file LauFlatteRes.cc.

Double_t LauFlatteRes::getg1Parameter ( ) const
inlineprotected

Get the g1 parameter.

Returns
constant factor g1

Definition at line 111 of file LauFlatteRes.hh.

Double_t LauFlatteRes::getg2Parameter ( ) const
inlineprotected

Get the g2 parameter.

Returns
constant factor g2

Definition at line 117 of file LauFlatteRes.hh.

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

Get the resonance model type.

Returns
the resonance model type

Implements LauAbsResonance.

Definition at line 66 of file LauFlatteRes.hh.

LauParameter * LauFlatteRes::getResonanceParameter ( const TString &  name)
virtual

Access the given resonance parameter.

Parameters
[in]namethe name of the parameter
Returns
the corresponding parameter

Reimplemented from LauAbsResonance.

Definition at line 344 of file LauFlatteRes.cc.

void LauFlatteRes::initialise ( )
virtual

Initialise the model.

Implements LauAbsResonance.

Definition at line 208 of file LauFlatteRes.cc.

LauFlatteRes& LauFlatteRes::operator= ( const LauFlatteRes rhs)
private

Copy assignment operator (not implemented)

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

Complex resonant amplitude.

Parameters
[in]massappropriate invariant mass for the resonance
[in]spinTermspin term

Implements LauAbsResonance.

Definition at line 225 of file LauFlatteRes.cc.

void LauFlatteRes::setg1Parameter ( const Double_t  g1)
protected

Set the g1 parameter.

Parameters
[in]g1constant factor

Definition at line 356 of file LauFlatteRes.cc.

void LauFlatteRes::setg2Parameter ( const Double_t  g2)
protected

Set the g2 parameter.

Parameters
[in]g2constant factor

Definition at line 363 of file LauFlatteRes.cc.

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

Set value of a resonance parameter.

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

Reimplemented from LauAbsResonance.

Definition at line 310 of file LauFlatteRes.cc.

Member Data Documentation

Bool_t LauFlatteRes::absorbM0_
private

Flag to specify whether the couplings absorb the m_0 factor.

Definition at line 166 of file LauFlatteRes.hh.

LauParameter* LauFlatteRes::g1_
private

Channel 1 coupling parameter.

Definition at line 146 of file LauFlatteRes.hh.

LauParameter* LauFlatteRes::g2_
private

Channel 1 coupling parameter.

Definition at line 148 of file LauFlatteRes.hh.

Double_t LauFlatteRes::mSumSq0_
private

Channel 1, subchannel 1 invariant mass.

Definition at line 151 of file LauFlatteRes.hh.

Double_t LauFlatteRes::mSumSq1_
private

Channel 1, subchannel 2 invariant mass.

Definition at line 153 of file LauFlatteRes.hh.

Double_t LauFlatteRes::mSumSq2_
private

Channel 2, subchannel 1 invariant mass.

Definition at line 155 of file LauFlatteRes.hh.

Double_t LauFlatteRes::mSumSq3_
private

Channel 2, subchannel 2 invariant mass.

Definition at line 157 of file LauFlatteRes.hh.

Double_t LauFlatteRes::sA_
private

The Adler zero.

Definition at line 163 of file LauFlatteRes.hh.

Bool_t LauFlatteRes::useAdlerTerm_
private

Flag to turn on Adler term in the width.

Definition at line 160 of file LauFlatteRes.hh.


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