Detailed Description

A class for the binned observable \(A_{\rm FB}(B \to X_q l^+l^-)\).

Author: HEPfit Collaboration

Copyright: GNU General Public License

This class is used to compute the integral of \(\frac{3}{4} H_A(q^2)\) in bins of \(q^2\) for \(B \to X_q l^+l^-\) :

\[ A_{\rm FB}(B \to X_q l^+l^-) = \int{q_m^2}{q_M^2} dq^2 \int{-1}{+1} dz \frac{d^2\Gamma}{dq^2 dz^2} {\rm sign}(z) \,. \]

Definition at line 200 of file BXqllObservables.h.

Public Member Functions
	AFB_BXqll (const StandardModel &SM_i, QCD::quark quark_i, QCD::lepton lep_i)
	Constructor. More...

double	computeThValue ()
	The binned observable \(A_{\rm FB}(B \to X_q l^+l^-)\). 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 StandardModel &	getModel ()
	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
BXqll	myBXqll

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 StandardModel &	SM
	A reference to an object of StandardMode class. More...

Constructor & Destructor Documentation

◆ AFB_BXqll()

AFB_BXqll::AFB_BXqll	(	const StandardModel &	SM_i,
		QCD::quark	quark_i,
		QCD::lepton	lep_i
	)

Constructor.

Parameters

[in]	SM_i	a reference to an object of type StandardModel
[in]	quark_i	quark defining the inclusive final hadronic state \(X_q\) of the decay
[in]	lep_i	final leptons of the decay

Definition at line 108 of file BXqllObservables.cpp.

: ThObservable(SM_i), myBXqll(SM_i, quark_i, lep_i) 
{  
//    if (SM.getModelName().compare("StandardModel") != 0) std::cout << "\nWARNING: B to Xq l+ l-: Rlow_BXqll not implemented in: " + SM.getModelName() + " model, returning Standard Model value.\n" << std::endl;
//    lep = lep_i;
//    quark = quark_i;
//    
    setParametersForObservable(myBXqll.initializeBXqllParameters());
}

Member Function Documentation

◆ computeThValue()

double AFB_BXqll::computeThValue ( )

virtual

The binned observable \(A_{\rm FB}(B \to X_q l^+l^-)\).

Returns: \(\frac{3}{4} H_A\)

Implements ThObservable.

Definition at line 118 of file BXqllObservables.cpp.

{
    double q_min = getBinMin();
    double q_max = getBinMax();
    return (3. * myBXqll.integrateH("A", q_min, q_max) / 4.);
}

Member Data Documentation

◆ myBXqll

BXqll AFB_BXqll::myBXqll

private

Definition at line 218 of file BXqllObservables.h.

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