ACP_MPll Class Reference

A class for the binned observable \(<A_{CP}>\) in \(M \to P l^+l^-\). More...

#include <MPllObservables.h>

Inheritance diagram for ACP_MPll:
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Collaboration diagram for ACP_MPll:
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Detailed Description

A class for the binned observable \(<A_{CP}>\) in \(M \to P l^+l^-\).

Author
HEPfit Collaboration

This class is used to compute the binned observable \(<A_{CP}>\) in \(M \to P l^+l^-\) in terms of the binned CP asymmetry helicity coefficients \(<\Delta_i>\), computed in the MVll class, and the \(\Gamma'\):

\[ <A_{CP}>= -\frac {3<\Delta_{1c}> - <\Delta_{2c}> + 2(3<\Delta_{1s}> - <\Delta_{2s}>)}{4<\Gamma'>} \,. \]

Definition at line 117 of file MPllObservables.h.

Public Member Functions

 ACP_MPll (const StandardModel &SM_i, StandardModel::meson meson_i, StandardModel::meson pseudoscalar_i, StandardModel::lepton lep_i)
 Constructor. More...
 
double computeThValue ()
 The binned observable \(<A_{CP}>\) in \(M \to P l^+l^-\). More...
 
- Public Member Functions inherited from BR_MPll
 BR_MPll (const StandardModel &SM_i, StandardModel::meson meson_i, StandardModel::meson pseudoscalar_i, StandardModel::lepton lep_i)
 Constructor. More...
 
double computeBR_MPll (double qmin, double qmax, StandardModel::lepton lep_i)
 A method to compute the binned observable \(<BR>\) in \(M \to P l^+l^-\) in a generic bin. 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 pseudoscalar
 

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

ACP_MPll::ACP_MPll ( const StandardModel SM_i,
StandardModel::meson  meson_i,
StandardModel::meson  pseudoscalar_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]pseudoscalar_ifinal pseudoscalar meson of the decay
[in]lep_ifinal leptons of the decay

Definition at line 60 of file MPllObservables.cpp.

61 : BR_MPll(SM_i, meson_i, pseudoscalar_i, lep_i)
62 {
63  if (SM.ModelName().compare("StandardModel") != 0) std::cout << "\nWARNING: B to P l+ l-: ACP not implemented in: " + SM.ModelName() + " model, returning Standard Model value.\n" << std::endl;
64  lep = lep_i;
65  meson = meson_i;
66  pseudoscalar = pseudoscalar_i;
67 }
StandardModel::meson pseudoscalar
StandardModel::meson meson
BR_MPll(const StandardModel &SM_i, StandardModel::meson meson_i, StandardModel::meson pseudoscalar_i, StandardModel::lepton lep_i)
Constructor.
StandardModel::lepton lep
const StandardModel & SM
A reference to an object of StandardMode class.
Definition: ThObservable.h:99
std::string ModelName() const
A method to fetch the name of the model.
Definition: Model.h:56

Member Function Documentation

double ACP_MPll::computeThValue ( )
virtual

The binned observable \(<A_{CP}>\) in \(M \to P l^+l^-\).

Returns
\(<A_{CP}>\)

Reimplemented from BR_MPll.

Definition at line 69 of file MPllObservables.cpp.

70 {
71  double q_min = getBinMin();
72  double q_max = getBinMax();
73 
74  return (3.*SM.getMyFlavour()->getMPll(meson, pseudoscalar, lep)->integrateDelta(0, q_min, q_max) - SM.getMyFlavour()->getMPll(meson, pseudoscalar, lep)->integrateDelta(2, q_min, q_max))/(4.*computeBR_MPll(q_min, q_max, lep)* SM.getMyFlavour()->getMPll(meson, pseudoscalar, lep)->width);
75 }
StandardModel::meson pseudoscalar
double integrateDelta(int i, double q_min, double q_max)
The integral of from to .
Definition: MPll.cpp:612
MPll * getMPll(StandardModel::meson meson_i, StandardModel::meson pseudoscalar_i, StandardModel::lepton lep_i)
Returns the initial and final state dependent object for .
Definition: Flavour.h:215
StandardModel::meson meson
double width
Definition: MPll.h:76
double getBinMin()
A get method to get the minimum value of the bin.
Definition: ThObservable.h:79
StandardModel::lepton lep
double getBinMax()
A get method to get the maximum value of the bin.
Definition: ThObservable.h:88
Flavour * getMyFlavour() const
const StandardModel & SM
A reference to an object of StandardMode class.
Definition: ThObservable.h:99
double computeBR_MPll(double qmin, double qmax, StandardModel::lepton lep_i)
A method to compute the binned observable in in a generic bin.

Member Data Documentation

StandardModel::lepton ACP_MPll::lep
private

Final leptons type.

Definition at line 136 of file MPllObservables.h.

StandardModel::meson ACP_MPll::meson
private

Initial meson type.

Definition at line 137 of file MPllObservables.h.

StandardModel::meson ACP_MPll::pseudoscalar
private

Final pseudoscalar meson type.

Definition at line 138 of file MPllObservables.h.


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