An observable class for the cross section of \(e^+ e^-\to Z\to \mathrm{hadrons}\) at the \(Z\) pole. More...

#include <sigmaHadron.h>

Inheritance diagram for sigmaHadron:

Detailed Description

An observable class for the cross section of \(e^+ e^-\to Z\to \mathrm{hadrons}\) at the \(Z\) pole.

Author: HEPfit Collaboration

Copyright: GNU General Public License

This class is used to compute the cross section for \(e^+ e^-\to Z\to \mathrm{hadrons}\) at the \(Z\) pole, in terms of \(\Gamma_e\), \(\Gamma_h\) and \(\Gamma_Z\) in the EW class:

\[ \sigma_h^0 = \frac{12\pi}{M_Z^2}\frac{\Gamma_e\Gamma_h}{\Gamma_Z^2}\,. \]

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

Definition at line 32 of file sigmaHadron.h.

Public Member Functions
double	computeThValue ()
	The cross section for the process \(e^+ e^-\to Z\to \mathrm{hadrons}\) at the \(Z\) pole, \(\sigma_h^0\), in units of nb. More...

	sigmaHadron (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

◆ sigmaHadron()

sigmaHadron::sigmaHadron ( const StandardModel & SM_i )

inline

Constructor.

Parameters

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

Definition at line 39 of file sigmaHadron.h.

    : ThObservable(SM_i) 
    {
    };

Member Function Documentation

◆ computeThValue()

double sigmaHadron::computeThValue ( )

virtual

The cross section for the process \(e^+ e^-\to Z\to \mathrm{hadrons}\) at the \(Z\) pole, \(\sigma_h^0\), in units of nb.

Returns: \(\sigma_h^0\) in units of nb.

Implements ThObservable.

Definition at line 11 of file sigmaHadron.cpp.

{
    return ( SM.sigma0_had() * SM.GeVminus2_to_nb);
}

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

Detailed Description

Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ sigmaHadron()

Member Function Documentation

◆ computeThValue()