RWc Class Reference

An observable class for \(R_{Wc}=\Gamma(W\to cs)/\Gamma(W\to {\rm hadrons})\). More...

#include <RWc.h>

Inheritance diagram for RWc:

Detailed Description

An observable class for \(R_{Wc}=\Gamma(W\to cs)/\Gamma(W\to {\rm hadrons})\).

Author

HEPfit Collaboration

Copyright

GNU General Public License

This class is used to compute the ratio of the \(Z\to c\bar{c}\) width to the \(Z\)-boson hadronic width:

\[ R_{Wc}=\Gamma(W\to cs)/\Gamma(W\to {\rm hadrons})\,. \]

See also

EW_NPZff::RWc() and the detailed description of EW class for the inclusion of new physics contribution

Definition at line 31 of file RWc.h.

Public Member Functions
double	computeThValue ()
	The ratio \(R_{Wc}=\Gamma(W\to cs)/\Gamma(W\to {\rm hadrons})\). More...
	RWc (const StandardModel &SM_i)
	Constructor. 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

RWc()

RWc::RWc ( const StandardModel &  SM_i )

inline

Constructor.

Parameters

[in]

SM_i

a reference to an object of type StandardModel

Definition at line 38 of file RWc.h.

    : ThObservable(SM_i) 
    {
    };

Member Function Documentation

computeThValue()

double RWc::computeThValue ( )

virtual

The ratio \(R_{Wc}=\Gamma(W\to cs)/\Gamma(W\to {\rm hadrons})\).

Returns

\(R_{Wc}\)

Implements ThObservable.

Definition at line 11 of file RWc.cpp.

{    
    double GammWcs = SM.GammaW(SM.getQuarks(StandardModel::CHARM), SM.getQuarks(StandardModel::STRANGE));
    double Gammhad = GammWcs;
    
//  Add the ud decays into the hadronic part
    Gammhad += SM.GammaW(SM.getQuarks(StandardModel::UP), SM.getQuarks(StandardModel::DOWN));
 
    return GammWcs/Gammhad;
}

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

• RWc.h
• RWc.cpp