lambda4 Class Reference

An observable class for the quartic Higgs potential coupling \(\lambda_4\). More...

#include <THDMquantities.h>

Inheritance diagram for lambda4:

Detailed Description

An observable class for the quartic Higgs potential coupling \(\lambda_4\).

This class is used to compute the quartic Higgs potential coupling \(\lambda_4\).

Definition at line 451 of file THDMquantities.h.

Public Member Functions
double	computeThValue ()
	The quartic coupling \(\lambda_4\).
	lambda4 (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.

Public Attributes
const THDM *	myTHDM

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

lambda4()

lambda4::lambda4

(

const StandardModel &

SM_i

)

Constructor.

Definition at line 251 of file THDMquantities.cpp.

: ThObservable(SM_i), myTHDM(static_cast<const THDM*> (&SM_i))
{}

Member Function Documentation

computeThValue()

double lambda4::computeThValue ( )

virtual

The quartic coupling \(\lambda_4\).

Returns

\(\lambda_4\)

Implements ThObservable.

Definition at line 255 of file THDMquantities.cpp.

{
    double mA2=myTHDM->getmA2();
    double mHp2=myTHDM->getmHp2();
    double vev=myTHDM->v();
    double sinb=myTHDM->getsinb();
    double cosb=myTHDM->getcosb();
    double m12_2=myTHDM->getm12_2();
 
    return ((mA2-2.0*mHp2)*sinb*cosb+m12_2)/(vev*vev*sinb*cosb);
}

Member Data Documentation

myTHDM

const THDM* lambda4::myTHDM

Definition at line 465 of file THDMquantities.h.

---

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

• THDMquantities.h
• THDMquantities.cpp