HHlambda2 Class Reference

An observable class for the quartic Higgs potential coupling \(\lambda_2^\text{HH}\). More...

#include <THDMquantities.h>

Inheritance diagram for HHlambda2:

Detailed Description

An observable class for the quartic Higgs potential coupling \(\lambda_2^\text{HH}\).

This class is used to compute the quartic Higgs potential coupling \(\lambda_2^\text{HH}\), see (4.8) in [Gunion:1989we].

Definition at line 1149 of file THDMquantities.h.

Public Member Functions
double	computeThValue ()
	The quartic coupling \(\lambda_2^\text{HH}\). More...
	HHlambda2 (const StandardModel &SM_i)
	HHlambda2 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...

Public Attributes
const THDM *	myTHDM

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...

Constructor & Destructor Documentation

HHlambda2()

HHlambda2::HHlambda2

(

const StandardModel &

SM_i

)

HHlambda2 constructor.

Definition at line 840 of file THDMquantities.cpp.

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

Member Function Documentation

computeThValue()

double HHlambda2::computeThValue ( )

virtual

The quartic coupling \(\lambda_2^\text{HH}\).

Returns

\(\lambda_2^\text{HH}\)

Implements ThObservable.

Definition at line 844 of file THDMquantities.cpp.

{
    double mHl2=myTHDM->getmHl2();
    double vev=myTHDM->v();
    double tanb=myTHDM->gettanb();
    double sinb=myTHDM->getsinb();
    double cosb=myTHDM->getcosb();
    double sin2b=2.0*sinb*cosb;
    double cos2b=cosb*cosb-sinb*sinb;
    double mHh2=myTHDM->getmHh2();
    double sina=myTHDM->getsina();
    double cosa=myTHDM->getcosa();
    double sin2a=2.0*sina*cosa;
    double cos2a=cosa*cosa-sina*sina;
    double m12_2=myTHDM->getm12_2();
    
    return (mHh2+mHl2-4.0*m12_2*cos2b/sin2b
            -(mHh2-mHl2)*(cos2a+sin2a*tanb))/(4.0*vev*vev*sinb*sinb);
}

Member Data Documentation

myTHDM

const THDM* HHlambda2::myTHDM

Definition at line 1163 of file THDMquantities.h.

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

• THDMquantities.h
• THDMquantities.cpp