BrWlepton Class Reference

An observable class for the branching ratio of the \(W\) boson into a given lepton + neutrino flavour. More...

#include <BrW.h>

Inheritance diagram for BrWlepton:

Detailed Description

An observable class for the branching ratio of the \(W\) boson into a given lepton + neutrino flavour.

Author

HEPfit Collaboration

Copyright

GNU General Public License

This class is used to compute the branching ratio of the \(W\) boson into a given lepton + neutrino flavour, \(BR(W\to \ell \nu)\). Assumes lepton-flavour universality.

Definition at line 25 of file BrW.h.

Public Member Functions
	BrWlepton (const StandardModel &SM_i)
	Constructor.
double	computeThValue ()
	The the branching ratio of the \(W\) boson into a given lepton + neutrino flavour, \(BR(W\to \ell \nu)\).
Public Member Functions inherited from ThObservable
double	getBinMax ()
	A get method to get the maximum value of the bin.
double	getBinMin ()
	A get method to get the minimum value of the bin.
const StandardModel &	getModel ()
	A get method to get the model.
const std::vector< std::string >	getParametersForObservable ()
	A get method to get the parameters for the specific observable.
void	setBinMax (double max)
	A set method to set the maximum value of the bin.
void	setBinMin (double min)
	A set method to set the minimum value of the bin.
void	setParametersForObservable (std::vector< std::string > parametersForObservable_i)
	A set method to get the parameters for the specific observable.
	ThObservable (const StandardModel &SM_i)
	Constructor.
	ThObservable (const ThObservable &orig)
	The copy constructor.
virtual	~ThObservable ()
	The default destructor.

Additional Inherited Members
Protected Attributes inherited from ThObservable
double	max
	the bin maximum.
double	min
	The bin minimum.
std::vector< std::string >	parametersForObservable
	a vector of parameter namesfor the specific observable
const StandardModel &	SM
	A reference to an object of StandardMode class.

Constructor & Destructor Documentation

BrWlepton()

BrWlepton::BrWlepton ( const StandardModel &  SM_i )

inline

Constructor.

Parameters

[in]

SM_i

a reference to an object of type StandardModel

Definition at line 32 of file BrW.h.

    : ThObservable(SM_i)
    {
    };

Member Function Documentation

computeThValue()

double BrWlepton::computeThValue ( )

virtual

The the branching ratio of the \(W\) boson into a given lepton + neutrino flavour, \(BR(W\to \ell \nu)\).

Returns

\(BR(W\to \ell \nu)\)

Implements ThObservable.

Definition at line 11 of file BrW.cpp.

{
    double BRe = SM.BrW(SM.getLeptons(StandardModel::NEUTRINO_1), SM.getLeptons(StandardModel::ELECTRON));
    double BRmu = SM.BrW(SM.getLeptons(StandardModel::NEUTRINO_2), SM.getLeptons(StandardModel::MU));
    double BRtau = SM.BrW(SM.getLeptons(StandardModel::NEUTRINO_3), SM.getLeptons(StandardModel::TAU));
    
    return (1./3.)*(BRe + BRmu + BRtau);
}

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

• BrW.h
• BrW.cpp