xi Class Reference

A class for \(\xi \equiv \frac{F_{B_s}\sqrt{B_{B_s}}}{F_{B_d}\sqrt{B_{B_d}}}\), relevant for \(B_{s,d}\) mesons mixing in the Standard Model. More...

#include <xi.h>

Inheritance diagram for xi:

Detailed Description

A class for \(\xi \equiv \frac{F_{B_s}\sqrt{B_{B_s}}}{F_{B_d}\sqrt{B_{B_d}}}\), relevant for \(B_{s,d}\) mesons mixing in the Standard Model.

Author

HEPfit Collaboration

Copyright

GNU General Public License

This class is used to retrieve the value of \(\xi\).

Definition at line 23 of file xi.h.

Public Member Functions
virtual double	computeThValue ()
	xi (const StandardModel &SM_i)
	Constructor.
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.

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

xi()

xi::xi

(

const StandardModel &

SM_i

)

Constructor.

Parameters

[in]

SM_i

a reference to an object of type StandardModel

Definition at line 11 of file xi.cpp.

                                : ThObservable(SM_i) 
{
    SM.initializeBParameter("BBd");
    SM.initializeBParameter("BBs");
};

Member Function Documentation

computeThValue()

double xi::computeThValue ( )

virtual

Returns

value of \(\xi\)

Implements ThObservable.

Definition at line 17 of file xi.cpp.

{
    return(SM.getMesons(QCD::B_S).getDecayconst()*sqrt(SM.getBBs().getBpars()(0))/(SM.getMesons(QCD::B_D).getDecayconst()*sqrt(SM.getBBd().getBpars()(0))));
}

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

• xi.h
• xi.cpp