BR_MPll Class Reference

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

#include <MPllObservables.h>

Inheritance diagram for BR_MPll:
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Collaboration diagram for BR_MPll:
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Detailed Description

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

Author
HEPfit Collaboration

This class is used to compute the binned observable \(<BR>\) in \(M \to P l^+l^-\) in terms of the binned CP averaged helicity coefficients \(<\Sigma_i>\), computed in the MPll class, and the meson width \(W_M\):

\[ <BR>= \frac {<\Gamma'>}{W_M} \,. \]

Definition at line 30 of file MPllObservables.h.

Public Member Functions

 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...
 
double computeThValue ()
 The binned observable \(<BR>\) in \(M \to P l^+l^-\). 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

BR_MPll::BR_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 16 of file MPllObservables.cpp.

17 : ThObservable(SM_i)
18 {
19  if (SM.ModelName().compare("StandardModel") != 0) std::cout << "\nWARNING: B to P l+ l-: BR_MPll not implemented in: " + SM.ModelName() + " model, returning Standard Model value.\n" << std::endl;
20  lep = lep_i;
21  meson = meson_i;
22  pseudoscalar = pseudoscalar_i;
23 }
StandardModel::meson pseudoscalar
StandardModel::lepton lep
const StandardModel & SM
A reference to an object of StandardMode class.
Definition: ThObservable.h:99
ThObservable(const StandardModel &SM_i)
Constructor.
Definition: ThObservable.h:29
std::string ModelName() const
A method to fetch the name of the model.
Definition: Model.h:56
StandardModel::meson meson

Member Function Documentation

double BR_MPll::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.

Parameters
[in]qminminimal value of the bin
[in]qmaxmaximal value of the bin
[in]lepfinal leptons of the decay
Returns
\(<BR>_{[qmin,qmax]}\)

Definition at line 25 of file MPllObservables.cpp.

26 {
27  double q_min = qmin;
28  double q_max = qmax;
29  StandardModel::lepton lep_i = lep;
30 
31  return (3.*SM.getMyFlavour()->getMPll(meson, pseudoscalar, lep_i)->integrateSigma(0,q_min,q_max) - SM.getMyFlavour()->getMPll(meson, pseudoscalar, lep_i)->integrateSigma(2,q_min,q_max))/(4. * SM.getMyFlavour()->getMPll(meson, pseudoscalar, lep_i)->width);
32 }
StandardModel::meson pseudoscalar
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::lepton lep
double width
Definition: MPll.h:76
Flavour * getMyFlavour() const
const StandardModel & SM
A reference to an object of StandardMode class.
Definition: ThObservable.h:99
double integrateSigma(int i, double q_min, double q_max)
The integral of from to .
Definition: MPll.cpp:575
lepton
An enum type for leptons.
StandardModel::meson meson
double BR_MPll::computeThValue ( )
virtual

The binned observable \(<BR>\) in \(M \to P l^+l^-\).

Returns
\(<BR>\)

Implements ThObservable.

Reimplemented in ACP_MPll, and R_MPll.

Definition at line 34 of file MPllObservables.cpp.

35 {
36  double q_min = getBinMin();
37  double q_max = getBinMax();
38 
39  return computeBR_MPll(q_min, q_max, lep) / ( q_max - q_min );
40 }
StandardModel::lepton lep
double getBinMin()
A get method to get the minimum value of the bin.
Definition: ThObservable.h:79
double getBinMax()
A get method to get the maximum value of the bin.
Definition: ThObservable.h:88
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 BR_MPll::lep
private

Final leptons type.

Definition at line 58 of file MPllObservables.h.

StandardModel::meson BR_MPll::meson
private

Initial meson type.

Definition at line 59 of file MPllObservables.h.

StandardModel::meson BR_MPll::pseudoscalar
private

Final pseudoscalar meson type.

Definition at line 60 of file MPllObservables.h.


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