muVHZZ Class Reference

#include <HiggsThObservables.h>

Inheritance diagram for muVHZZ:

Detailed Description

Author

HEPfit Collaboration

Copyright

GNU General Public License

Definition at line 3398 of file HiggsThObservables.h.

Public Member Functions
double	computeThValue ()
	muVHZZ (const StandardModel &SM_i, const double sqrt_s_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.

Private Attributes
const NPbase *	myNPbase
const double	sqrt_s

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

muVHZZ()

muVHZZ::muVHZZ	(	const StandardModel &	SM_i,
		const double	sqrt_s_i
	)

Constructor.

Parameters

[in]	SM_i	a reference to a StandardModel object or to any extension of it
[in]	sqrt_s_i	the center-of-mass energy in TeV

Definition at line 1958 of file HiggsThObservables.cpp.

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

Member Function Documentation

computeThValue()

double muVHZZ::computeThValue ( )

virtual

Returns

Implements ThObservable.

Definition at line 1965 of file HiggsThObservables.cpp.

{
    //VM:Note that these values are valid for 13 TeV, they are not general
    //We should access the SM function that has all the values (for the 
    //different energies). The values are slightly different, we should 
    //check this.
    //Ref: https://www.hepdata.net/record/ins2104706 Figure2a (symmetrized)
    double xsSM_WH  = 1.21539;
    double xsSM_ZH  = 0.795910;
    //double xsSM_WH = myNPbase->computeSigmaWH(sqrt_s);
    //double xsSM_ZH = myNPbase->computeSigmaZH(sqrt_s);
    if ((this->getModel()).isModelLinearized() || (this->getModel()).isModelNPquadratic()) {
        //AG: Most general expression including quadratic corrections. 
        //    If FlagQuadraticTerms=false, the quadratic pieces become 0 in NPSMEFTd6General
        //return ( -1.0 + (myNPbase->muVH(sqrt_s)) + (myNPbase->BrHZZRatio()));    
        double muProd1 = ( xsSM_ZH*(myNPbase->delta_muZH_1(sqrt_s)) + xsSM_WH*(myNPbase->delta_muWH_1(sqrt_s)) )/(xsSM_ZH+xsSM_WH);     
        double muProd2 = ( xsSM_ZH*(myNPbase->delta_muZH_2(sqrt_s)) + xsSM_WH*(myNPbase->delta_muWH_2(sqrt_s)) )/(xsSM_ZH+xsSM_WH);     
        double dGammaR1 = myNPbase->deltaGammaHZZRatio1();
        double dGammaR2 = myNPbase->deltaGammaHZZRatio2();
        
        double dGammaRTot1 = myNPbase->deltaGammaTotalRatio1();
        double dGammaRTot2 = myNPbase->deltaGammaTotalRatio2();
        double Br1 = dGammaR1-dGammaRTot1;
        double Br2 = dGammaR2 -dGammaRTot2 - dGammaR1*dGammaRTot1 + pow(dGammaRTot1,2.0);
 
        double mu;
        
        mu = 1.0 + (muProd1 + Br1) + (muProd2 + Br2 + muProd1*Br1);
        
        if (mu < 0) return std::numeric_limits<double>::quiet_NaN();
        
        return mu; 
        
    } else {
        //return myNPbase->muVHZZ(sqrt_s);
        //VM: Just in case someone wants to add directly the production*decay 
        //(which is the observable we fit at the end)
        double NPmuVHZZ = myNPbase->muVHZZ(sqrt_s);
        if(NPmuVHZZ==1.0){
            return ( xsSM_ZH*(myNPbase->muZH(sqrt_s)) + xsSM_WH*(myNPbase->muWH(sqrt_s)) )/(xsSM_ZH+xsSM_WH) * (myNPbase->BrHZZRatio());
        } else {
            return NPmuVHZZ;
        }
    }
}

Member Data Documentation

myNPbase

const NPbase* muVHZZ::myNPbase

private

Definition at line 3415 of file HiggsThObservables.h.

sqrt_s

const double muVHZZ::sqrt_s

private

Definition at line 3416 of file HiggsThObservables.h.

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

• HiggsThObservables.h
• HiggsThObservables.cpp