deltagEffZbbR Class Reference

An observable class for the deviation from the SM of the \(Z b_{R} b_{R}\) coupling \(\delta g_{Zbb}^{R}/g_{SM}\). More...

#include <NP_couplings.h>

Inheritance diagram for deltagEffZbbR:

Detailed Description

An observable class for the deviation from the SM of the \(Z b_{R} b_{R}\) coupling \(\delta g_{Zbb}^{R}/g_{SM}\).

Author

HEPfit Collaboration

Copyright

GNU General Public License

This class is used to compute the deviation from the SM on the \(Z b_{R} b_{R}\) coupling \(\delta g_{Zbb}^{R}/g_{SM}\).

Definition at line 1477 of file NP_couplings.h.

Public Member Functions
double	computeThValue ()
	The deviation from the SM of the \(Z b_{R} b_{R}\) coupling \(\delta g_{Zbb}^{R}/g_{SM}\).
	deltagEffZbbR (const StandardModel &SM_i)
	Constructor.
virtual	~deltagEffZbbR ()
	Destructor of the deltagEffZbbR class.
Public Member Functions inherited from ThObservable
double	getBinMax ()
	A get method to get the maximum value of the bin.
double	getBinMin ()
	A get method to get the minimum value of the bin.
const StandardModel &	getModel ()
	A get method to get the model.
const std::vector< std::string >	getParametersForObservable ()
	A get method to get the parameters for the specific observable.
void	setBinMax (double max)
	A set method to set the maximum value of the bin.
void	setBinMin (double min)
	A set method to set the minimum value of the bin.
void	setParametersForObservable (std::vector< std::string > parametersForObservable_i)
	A set method to get the parameters for the specific observable.
	ThObservable (const StandardModel &SM_i)
	Constructor.
	ThObservable (const ThObservable &orig)
	The copy constructor.
virtual	~ThObservable ()
	The default destructor.

Private Attributes
const NPbase *	myNPbase

Additional Inherited Members
Protected Attributes inherited from ThObservable
double	max
	the bin maximum.
double	min
	The bin minimum.
std::vector< std::string >	parametersForObservable
	a vector of parameter namesfor the specific observable
const StandardModel &	SM
	A reference to an object of StandardMode class.

Constructor & Destructor Documentation

deltagEffZbbR()

deltagEffZbbR::deltagEffZbbR

(

const StandardModel &

SM_i

)

Constructor.

Parameters

[in]

SM_i

a reference to an object of type StandardModel

Definition at line 1174 of file NP_couplings.cpp.

:ThObservable(SM_i)
{
    if ((myNPbase = dynamic_cast<const NPbase*> (&SM)) == NULL)
        throw std::runtime_error("deltagEffZbbR called with a class whose parent is not NPbase");
}

~deltagEffZbbR()

deltagEffZbbR::~deltagEffZbbR ( )

virtual

Destructor of the deltagEffZbbR class.

Definition at line 1182 of file NP_couplings.cpp.

{}

Member Function Documentation

computeThValue()

double deltagEffZbbR::computeThValue ( )

virtual

The deviation from the SM of the \(Z b_{R} b_{R}\) coupling \(\delta g_{Zbb}^{R}/g_{SM}\).

Returns

\(\delta g_{Zbb}^{R}/g_{SM}\)

Implements ThObservable.

Definition at line 1185 of file NP_couplings.cpp.

{
    double dGaZff = myNPbase->deltaGamma_Zf(SM.getQuarks(StandardModel::BOTTOM));
    double dAf = myNPbase->deltaA_f(SM.getQuarks(StandardModel::BOTTOM));    
    
    double sw2_tree = 1.0 - (SM.StandardModel::Mw_tree())*(SM.StandardModel::Mw_tree())/(SM.getMz())/(SM.getMz());
    double cw2_tree = 1.0 - sw2_tree;
    
    double Nc = 3.0;
    
    double gLSM = (SM.getQuarks(StandardModel::BOTTOM)).getIsospin() 
    - ((SM.getQuarks(StandardModel::BOTTOM)).getCharge())*sw2_tree;
    double gRSM = - ((SM.getQuarks(StandardModel::BOTTOM)).getCharge())*sw2_tree;
    
    double dg;
    
    dg =  3.0 * sw2_tree * cw2_tree * dGaZff / (gLSM*gLSM + gRSM*gRSM) / (SM.getMz()) / (SM.alphaMz()) / Nc;
    
    dg = dg - (gLSM*gLSM + gRSM*gRSM) * dAf / (4.0 * gRSM*gRSM);
        
    return dg;
}

Member Data Documentation

myNPbase

const NPbase* deltagEffZbbR::myNPbase

private

Definition at line 1498 of file NP_couplings.h.

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

• NP_couplings.h
• NP_couplings.cpp