Rbottom Class Reference

An observable class for \(R_b^0=\Gamma(Z\to b\bar{b})/\Gamma(Z\to {\rm hadrons})\). More...

#include <Rbottom.h>

Inheritance diagram for Rbottom:
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Detailed Description

An observable class for \(R_b^0=\Gamma(Z\to b\bar{b})/\Gamma(Z\to {\rm hadrons})\).

Author
HEPfit Collaboration

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

\[ R_b = \frac{\Gamma_b}{\Gamma_h}\,. \]

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

Definition at line 31 of file Rbottom.h.

Public Member Functions

double computeThValue ()
 The ratio \(R_b^0=\Gamma(Z\to b\bar{b})/\Gamma(Z\to {\rm hadrons})\). More...
 
 Rbottom (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 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

Rbottom::Rbottom ( const StandardModel SM_i)
inline

Constructor.

Parameters
[in]SM_ia reference to an object of type StandardModel

Definition at line 38 of file Rbottom.h.

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

Member Function Documentation

double Rbottom::computeThValue ( )
virtual

The ratio \(R_b^0=\Gamma(Z\to b\bar{b})/\Gamma(Z\to {\rm hadrons})\).

Returns
\(R_b^0\)

Implements ThObservable.

Definition at line 10 of file Rbottom.cpp.

11 {
12  return SM.R0_f(SM.getQuarks(SM.BOTTOM));
13 }
Particle getQuarks(const quark q) const
A get method to access a quark as an object of the type Particle.
Definition: QCD.h:869
const StandardModel & SM
A reference to an object of StandardMode class.
Definition: ThObservable.h:99
virtual double R0_f(const Particle f) const
The ratio .

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