(Generated on Fri Feb 19 2016 13:25:10 by 1.8.9.1)
AFBlepton Class Reference

An observable class for the forward-backward asymmetry in $$e^+ e^-\to Z\to \ell^+ \ell^-$$ at the $$Z$$ pole. More...

#include <AFBlepton.h>

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Collaboration diagram for AFBlepton:
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## Detailed Description

An observable class for the forward-backward asymmetry in $$e^+ e^-\to Z\to \ell^+ \ell^-$$ at the $$Z$$ pole.

This class is used to compute the forward-backward asymmetry for an $$e^+ e^-\to Z\to \ell^+ \ell^-$$ process at the $$Z$$ pole in terms of the asymmetry parameters $$\mathcal{A}_f$$, computed in the EW class:

$A_{\mathrm{FB}}^{0,\ell}=\frac 34 \mathcal{A}_e \mathcal{A}_\ell\,,$

where $$\ell$$ denotes a charged lepton, and lepton-flavour universality is assumed.

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

Definition at line 34 of file AFBlepton.h.

## Public Member Functions

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

double computeThValue ()
The forward-backward asymmetry for $$e^+ e^-\to Z \to \ell^+ \ell^-$$ at the $$Z$$ pole, $$A^{0,\ell}_{\mathrm{FB}}$$. 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...

## Additional Inherited Members

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

 AFBlepton::AFBlepton ( const StandardModel & SM_i )
inline

Constructor.

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

Definition at line 41 of file AFBlepton.h.

42  : ThObservable(SM_i)
43  {
44  };
ThObservable(const StandardModel &SM_i)
Constructor.
Definition: ThObservable.h:29

## Member Function Documentation

 double AFBlepton::computeThValue ( )
virtual

The forward-backward asymmetry for $$e^+ e^-\to Z \to \ell^+ \ell^-$$ at the $$Z$$ pole, $$A^{0,\ell}_{\mathrm{FB}}$$.

Returns
$$A^{0,\ell}_{\mathrm{FB}}$$

Implements ThObservable.

Definition at line 10 of file AFBlepton.cpp.

11 {
12  return SM.AFB(SM.getLeptons(SM.ELECTRON));
13 }
Particle getLeptons(const StandardModel::lepton p) const
A get method to retrieve the member object of a lepton.
virtual double AFB(const Particle f) const
const StandardModel & SM
A reference to an object of StandardMode class.
Definition: ThObservable.h:99

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