(Generated on Fri Feb 19 2016 13:25:16 by 1.8.9.1)

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

#include <sigmaHadron.h>

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## Detailed Description

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

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:

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

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...

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 StandardModelgetModel ()
A get method to get the model. 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...

ThObservable (const StandardModel &SM_i)
Constructor. More...

ThObservable (const ThObservable &orig)
The copy constructor. More...

virtual ~ThObservable ()
The default destructor. More...

Protected Attributes inherited from ThObservable
double max
the bin maximum. More...

double min
The bin minimum. More...

const StandardModelSM
A reference to an object of StandardMode class. More...

## Constructor & Destructor Documentation

inline

Constructor.

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

Definition at line 39 of file sigmaHadron.h.

40  : ThObservable(SM_i)
41  {
42  };
ThObservable(const StandardModel &SM_i)
Constructor.
Definition: ThObservable.h:29

## Member Function Documentation

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 10 of file sigmaHadron.cpp.

11 {
12  return ( SM.sigma0_had() * SM.GeVminus2_to_nb);
13 }