EpsilonK Class Reference

A class for \(\epsilon_K\) that parametrizes indirect CPV in the Kaon sector. More...

#include <EpsilonK.h>

Inheritance diagram for EpsilonK:

Detailed Description

A class for \(\epsilon_K\) that parametrizes indirect CPV in the Kaon sector.

Author

HEPfit Collaboration

Copyright

GNU General Public License

This class is used to compute the theoretical value of \(\epsilon_K\). This parameter gets contributions both from the SM and many NP models. It is an important constraint on FCNC from NP models, specially those contributing to chirality flipping \(\Delta F = 2\) operators due to large enhancement by QCD running of these operators to Koan mass scales.

Definition at line 29 of file EpsilonK.h.

Public Member Functions
double	computeThValue ()
	EpsilonK (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 StandardModel &	getModel ()
	A get method to get the model. More...
const std::vector< std::string >	getParametersForObservable ()
	A get method to get the parameters for the specific observable. 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...
void	setParametersForObservable (std::vector< std::string > parametersForObservable_i)
	A set method to get the parameters for the specific observable. 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...
std::vector< std::string >	parametersForObservable
	a vector of parameter namesfor the specific observable More...
const StandardModel &	SM
	A reference to an object of StandardMode class. More...
Private Member Functions inherited from AmpDK2
	AmpDK2 (const StandardModel &SM_i)
	Constructor. More...
gslpp::complex	AmpDK (orders order)
	compute the amplitude for kaon oscillations More...
gslpp::complex	AmpDMKNP (orders order)
	compute the NP part of the amplitude for kaon oscillations More...

Constructor & Destructor Documentation

EpsilonK()

EpsilonK::EpsilonK

(

const StandardModel &

SM_i

)

Constructor.

Parameters

[in]

SM_i

a reference to an object of type StandardModel

Definition at line 12 of file EpsilonK.cpp.

                                           : ThObservable(SM_i), AmpDK2(SM_i)
{
    setParametersForObservable(make_vector<std::string>() << "DeltaMK" << "KbarEpsK" << "phiEpsK" << "DeltattEpsK");
}

Member Function Documentation

computeThValue()

double EpsilonK::computeThValue ( )

virtual

Returns

theoretical value of \(\epsilon_K\)

Implements ThObservable.

Definition at line 17 of file EpsilonK.cpp.

{
#if SUSYFIT_DEBUG & 2
    std::cout << "amplitude = " <<  AmpDK(FULLNLO).imag() << std::endl;
#endif
    return(SM.getCepsK() / SM.getOptionalParameter("DeltaMK") * AmpDK(FULLNLO).imag() * SM.getOptionalParameter("KbarEpsK") * 
            // Tarantino et al 2021
            1.01 *
            sin(SM.getOptionalParameter("phiEpsK") * M_PI / 180.));
}

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

• EpsilonK.h
• EpsilonK.cpp