An observable class for \(R_\tau^0=\Gamma(Z\to {\rm hadrons})/\Gamma(Z\to \tau^+ \tau^-)\). More...

#include <Rlepton.h>

Inheritance diagram for Rtau:

Detailed Description

An observable class for \(R_\tau^0=\Gamma(Z\to {\rm hadrons})/\Gamma(Z\to \tau^+ \tau^-)\).

This class is used to compute the ratio of the \(Z\)-boson hadronic width to the \(Z\to \tau^+ \tau^-\) width:

\[ R_\tau = \frac{\Gamma_h}{\Gamma_\tau}\,. \]

Lepton-flavour universality is not assumed.

Definition at line 153 of file Rlepton.h.

Public Member Functions
double	computeThValue ()
	The ratio \(R_\tau^0=\Gamma(Z\to {\rm hadrons})/\Gamma(Z\to \tau^+ \tau^-)\). More...

	Rtau (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

Rtau::Rtau ( const StandardModel & SM_i )

inline

Constructor.

Parameters

[in] SM_i a reference to an object of type StandardModel

Definition at line 160 of file Rlepton.h.

    : ThObservable(SM_i)
    {
    };

double Rtau::computeThValue ( )

virtual

The ratio \(R_\tau^0=\Gamma(Z\to {\rm hadrons})/\Gamma(Z\to \tau^+ \tau^-)\).

Definition at line 30 of file Rlepton.cpp.

{
    return SM.R0_f(SM.getLeptons(SM.TAU));
}

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