BrWhadrons Class Reference

An observable class for the branching ratio of the \(W\) boson into hadrons. More...

#include <BrW.h>

Inheritance diagram for BrWhadrons:

Detailed Description

An observable class for the branching ratio of the \(W\) boson into hadrons.

Author

HEPfit Collaboration

Copyright

GNU General Public License

This class is used to compute the branching ratio of the \(W\) boson into hadrons, \(BR(W\to had)\). Lepton-flavour universality not assumed.

Definition at line 153 of file BrW.h.

Public Member Functions
	BrWhadrons (const StandardModel &SM_i)
	Constructor. More...
double	computeThValue ()
	The the branching ratio of the \(W\) boson into hadrons, \(BR(W\to hadrons)\). 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...

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

BrWhadrons()

BrWhadrons::BrWhadrons ( const StandardModel &  SM_i )

inline

Constructor.

Parameters

[in]

SM_i

a reference to an object of type StandardModel

Definition at line 160 of file BrW.h.

    : ThObservable(SM_i)
    {
    };

Member Function Documentation

computeThValue()

double BrWhadrons::computeThValue ( )

virtual

The the branching ratio of the \(W\) boson into hadrons, \(BR(W\to hadrons)\).

Returns

\(BR(W\to had)\)

Implements ThObservable.

Definition at line 45 of file BrW.cpp.

{
    double GammW = SM.GammaW();
    double Gammhad = 0.;
    
//  Current SM formula asummes diagonal CKM
    Gammhad += SM.GammaW(SM.getQuarks(StandardModel::UP), SM.getQuarks(StandardModel::DOWN));
    Gammhad += SM.GammaW(SM.getQuarks(StandardModel::CHARM), SM.getQuarks(StandardModel::STRANGE));
 
    return Gammhad/GammW;
}

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

• BrW.h
• BrW.cpp