GammaPrimef Class Reference

A class for the observable \(\Gamma'\) in \(M \to V l^+l^-\). More...

#include <MVllObservables.h>

Inherits ThObservable.

Inherited by A_FBf, BRf_MVll, F_Lf, S_3f, S_4f, S_5f, S_7f, S_8f, and S_9f.

Collaboration diagram for GammaPrimef:
[legend]

Detailed Description

A class for the observable \(\Gamma'\) in \(M \to V l^+l^-\).

Author
HEPfit Collaboration

This class is used to compute the observable \(\Gamma'\) in \(M \to V l^+l^-\) in terms of the CP averaged helicity coefficients \(\Sigma_i\), computed in the MVll class:

\[ \Gamma'=- \frac {1}{4} ((3\Sigma_{1c} - \Sigma_{2c}) + 2(3\Sigma_{1s} - \Sigma_{2s}))\,. \]

Definition at line 1939 of file MVllObservables.h.

Public Member Functions

double computeGammaPrimef (double qmin, StandardModel::lepton lep)
 A method to compute the observable \(\Gamma'\) in \(M \to V l^+l^-\) at a generic \(q^2\). More...
 
double computeThValue ()
 The observable \(\Gamma'\) in \(M \to V l^+l^-\). More...
 
 GammaPrimef (const StandardModel &SM_i, StandardModel::meson meson_i, StandardModel::meson vector_i, StandardModel::lepton lep_i)
 Constructor. More...
 
- Public Member Functions inherited from ThObservable
double getBinMax ()
 A get method to get the maximum value of the bin. More...
 
double getBinMin ()
 A get method to get the minimum value of the bin. More...
 
const StandardModelgetModel ()
 A get method to get the model. More...
 
void setBinMax (double max)
 A set method to set the maximum value of the bin. More...
 
void setBinMin (double min)
 A set method to set the minimum value of the bin. More...
 
 ThObservable (const StandardModel &SM_i)
 Constructor. More...
 
 ThObservable (const ThObservable &orig)
 The copy constructor. More...
 
virtual ~ThObservable ()
 The default destructor. More...
 

Private Attributes

StandardModel::lepton lep
 
StandardModel::meson meson
 
StandardModel::meson vectorM
 

Additional Inherited Members

- Protected Attributes inherited from ThObservable
double max
 the bin maximum. More...
 
double min
 The bin minimum. More...
 
const StandardModelSM
 A reference to an object of StandardMode class. More...
 

Constructor & Destructor Documentation

GammaPrimef::GammaPrimef ( const StandardModel SM_i,
StandardModel::meson  meson_i,
StandardModel::meson  vector_i,
StandardModel::lepton  lep_i 
)

Constructor.

Parameters
[in]SM_ia reference to an object of type StandardModel
[in]meson_iinitial meson of the decay
[in]vector_ifinal vector meson of the decay
[in]lep_ifinal leptons of the decay

Definition at line 867 of file MVllObservables.cpp.

868 : ThObservable(SM_i)
869 {
870  lep = lep_i;
871  meson = meson_i;
872  vectorM = vector_i;
873 }
StandardModel::lepton lep
StandardModel::meson vectorM
ThObservable(const StandardModel &SM_i)
Constructor.
Definition: ThObservable.h:29
StandardModel::meson meson

Member Function Documentation

double GammaPrimef::computeGammaPrimef ( double  qmin,
StandardModel::lepton  lep 
)

A method to compute the observable \(\Gamma'\) in \(M \to V l^+l^-\) at a generic \(q^2\).

Parameters
[in]qmin\(q^2\) value
[in]lepfinal leptons of the decay
Returns
\(\Gamma'(q^2)\)

Definition at line 875 of file MVllObservables.cpp.

876 {
877  double q_min = qmin;
878  StandardModel::lepton lep_i = lep;
879 
880  return ((3.*SM.getMyFlavour()->getMVll(meson, vectorM, lep_i)->getSigma(0,q_min) - SM.getMyFlavour()->getMVll(meson, vectorM, lep_i)->getSigma(2,q_min)) + 2.*(3.*SM.getMyFlavour()->getMVll(meson, vectorM, lep_i)->getSigma(1,q_min) - SM.getMyFlavour()->getMVll(meson, vectorM, lep_i)->getSigma(3,q_min)))/4.;
881 }
StandardModel::lepton lep
StandardModel::meson vectorM
Flavour * getMyFlavour() const
const StandardModel & SM
A reference to an object of StandardMode class.
Definition: ThObservable.h:99
MVll * getMVll(StandardModel::meson meson_i, StandardModel::meson vector_i, StandardModel::lepton lep_i)
Returns the initial and final state dependent object for .
Definition: Flavour.h:199
double getSigma(int i, double q_2)
The value of from to .
Definition: MVll.cpp:1630
StandardModel::meson meson
lepton
An enum type for leptons.
double GammaPrimef::computeThValue ( )
virtual

The observable \(\Gamma'\) in \(M \to V l^+l^-\).

Returns
\(\Gamma'\)

Implements ThObservable.

Reimplemented in S_9f, S_8f, S_7f, S_5f, S_4f, S_3f, F_Lf, BRf_MVll, and A_FBf.

Definition at line 883 of file MVllObservables.cpp.

884 {
885  double q_min = getBinMin();
886 
887  return computeGammaPrimef(q_min, lep);
888 }
double computeGammaPrimef(double qmin, StandardModel::lepton lep)
A method to compute the observable in at a generic .
StandardModel::lepton lep
double getBinMin()
A get method to get the minimum value of the bin.
Definition: ThObservable.h:79

Member Data Documentation

StandardModel::lepton GammaPrimef::lep
private

Final leptons type.

Definition at line 1966 of file MVllObservables.h.

StandardModel::meson GammaPrimef::meson
private

Initial meson type.

Definition at line 1967 of file MVllObservables.h.

StandardModel::meson GammaPrimef::vectorM
private

Final vector meson type.

Definition at line 1968 of file MVllObservables.h.


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