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BR_MPll Class Reference

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

#include <MPllObservables.h>

+ Inheritance diagram for BR_MPll:

Detailed Description

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

Author
HEPfit Collaboration

This class is used to compute the binned-integrated 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 27 of file MPllObservables.h.

Public Member Functions

 BR_MPll (const StandardModel &SM_i, QCD::meson meson_i, QCD::meson pseudoscalar_i, QCD::lepton lep_i)
 Constructor. More...
 
double computeBR_MPll (double qmin, double qmax, QCD::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...
 
const std::vector< std::string > getParametersForObservable ()
 A get method to get the parameters for the specific observable. 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...
 
void setParametersForObservable (std::vector< std::string > parametersForObservable_i)
 A set method to get the parameters for the specific observable. More...
 
 ThObservable (const StandardModel &SM_i)
 Constructor. More...
 
 ThObservable (const ThObservable &orig)
 The copy constructor. More...
 
virtual ~ThObservable ()
 The default destructor. More...
 

Private Attributes

QCD::lepton lep
 
QCD::meson meson
 
QCD::meson pseudoscalar
 

Additional Inherited Members

- Protected Attributes inherited from ThObservable
double max
 the bin maximum. More...
 
double min
 The bin minimum. More...
 
std::vector< std::string > parametersForObservable
 a vector of parameter namesfor the specific observable More...
 
const StandardModelSM
 A reference to an object of StandardMode class. More...
 

Constructor & Destructor Documentation

◆ BR_MPll()

BR_MPll::BR_MPll ( const StandardModel SM_i,
QCD::meson  meson_i,
QCD::meson  pseudoscalar_i,
QCD::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.

18 : ThObservable(SM_i)
19 {
20  lep = lep_i;
21  meson = meson_i;
22  pseudoscalar = pseudoscalar_i;
23 

Member Function Documentation

◆ computeBR_MPll()

double BR_MPll::computeBR_MPll ( double  qmin,
double  qmax,
QCD::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 26 of file MPllObservables.cpp.

28 {
29  double q_min = qmin;
30  double q_max = qmax;
31  QCD::lepton lep_i = lep;
32 
33  return (3.*SM.getFlavour().getMPll(meson, pseudoscalar, lep_i).integrateSigma(0,q_min,q_max) - SM.getFlavour().getMPll(meson, pseudoscalar, lep_i).integrateSigma(2,q_min,q_max))/(4. * SM.getFlavour().getMPll(meson, pseudoscalar, lep_i).getwidth());

◆ computeThValue()

double BR_MPll::computeThValue ( )
virtual

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

Returns
\(<BR>\)

Implements ThObservable.

Reimplemented in ACP_MPll, R_MPll, and dBR_MPll.

Definition at line 35 of file MPllObservables.cpp.

37 {
38  double q_min = getBinMin();
39  double q_max = getBinMax();
40 
41  return computeBR_MPll(q_min, q_max, lep);

Member Data Documentation

◆ lep

QCD::lepton BR_MPll::lep
private

Final leptons type.

Definition at line 55 of file MPllObservables.h.

◆ meson

QCD::meson BR_MPll::meson
private

Initial meson type.

Definition at line 56 of file MPllObservables.h.

◆ pseudoscalar

QCD::meson BR_MPll::pseudoscalar
private

Final pseudoscalar meson type.

Definition at line 57 of file MPllObservables.h.


The documentation for this class was generated from the following files:
ThObservable::setParametersForObservable
void setParametersForObservable(std::vector< std::string > parametersForObservable_i)
A set method to get the parameters for the specific observable.
Definition: ThObservable.h:109
ThObservable::getBinMax
double getBinMax()
A get method to get the maximum value of the bin.
Definition: ThObservable.h:91
Flavour::getMPll
MPll & getMPll(QCD::meson meson_i, QCD::meson pseudoscalar_i, QCD::lepton lep_i) const
Returns the initial and final state dependent object for .
Definition: Flavour.cpp:191
ThObservable::ThObservable
ThObservable(const StandardModel &SM_i)
Constructor.
Definition: ThObservable.h:32
MPll::integrateSigma
double integrateSigma(int i, double q_min, double q_max)
The integral of from to .
Definition: MPll.cpp:1174
BR_MPll::lep
QCD::lepton lep
Definition: MPllObservables.h:55
BR_MPll::meson
QCD::meson meson
Definition: MPllObservables.h:56
ThObservable::SM
const StandardModel & SM
A reference to an object of StandardMode class.
Definition: ThObservable.h:121
BR_MPll::pseudoscalar
QCD::meson pseudoscalar
Definition: MPllObservables.h:57
StandardModel::getFlavour
const Flavour & getFlavour() const
Definition: StandardModel.h:1006
BR_MPll::computeBR_MPll
double computeBR_MPll(double qmin, double qmax, QCD::lepton lep_i)
A method to compute the binned observable in in a generic bin.
Definition: MPllObservables.cpp:26
ThObservable::getBinMin
double getBinMin()
A get method to get the minimum value of the bin.
Definition: ThObservable.h:82
MPll::initializeMPllParameters
std::vector< std::string > initializeMPllParameters()
A method for initializing the parameters necessary for MPll.
Definition: MPll.cpp:76
MPll::getwidth
double getwidth()
The width of the meson M.
Definition: MPll.h:262
QCD::lepton
lepton
An enum type for leptons.
Definition: QCD.h:310