R1p00eveM_Z2 Class Reference

Perturbative unitarity ratio for the minus-sign eigenvalue of the even 00 block. More...

#include <GeneralTHDMZ2Unitarity.h>

Inheritance diagram for R1p00eveM_Z2:

Detailed Description

Perturbative unitarity ratio for the minus-sign eigenvalue of the even 00 block.

Definition at line 360 of file GeneralTHDMZ2Unitarity.h.

Public Member Functions
double	computeThValue ()
	R1p00eveM_Z2 (const StandardModel &SM_i)
	R1p00eveM_Z2 constructor. More...
Public Member Functions inherited from unitarity_Z2
	unitarity_Z2 (const StandardModel &SM_i)
	unitarity_Z2 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...

Private Attributes
const GeneralTHDMZ2 *	myGTHDMZ2

Additional Inherited Members
Protected Member Functions inherited from unitarity_Z2
void	computeZ2_at_Q ()
Protected Attributes inherited from unitarity_Z2
GeneralTHDMZ2Runner	myGTHDM
gslpp::matrix< double >	myZ2_at_Q
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

R1p00eveM_Z2()

R1p00eveM_Z2::R1p00eveM_Z2

(

const StandardModel &

SM_i

)

R1p00eveM_Z2 constructor.

Definition at line 618 of file GeneralTHDMZ2Unitarity.cpp.

: unitarity_Z2(SM_i), myGTHDMZ2(static_cast<const GeneralTHDMZ2*> (&SM_i))
{}

Member Function Documentation

computeThValue()

double R1p00eveM_Z2::computeThValue ( )

virtual

Returns

\(R_1^{\prime} = \vert\frac{a^{\text{even,\, NLO}}_{00-}}{a^{\text{even,\, LO}}_{00-}}\vert\)

Implements ThObservable.

Definition at line 622 of file GeneralTHDMZ2Unitarity.cpp.

{
    gslpp::complex i = gslpp::complex::i();
 
    computeZ2_at_Q();
 
    double la1Q = myZ2_at_Q(0, 0);
    double la2Q = myZ2_at_Q(0, 1);
    double la3Q = myZ2_at_Q(0, 2);
    double la4Q = myZ2_at_Q(0, 3);
    double la5Q = myZ2_at_Q(0, 4);
 
    double YtQ    = myZ2_at_Q(1, 0);
    double Yb1Q   = myZ2_at_Q(1, 1);
    double Yb2Q   = myZ2_at_Q(1, 2);
    double Ytau1Q = myZ2_at_Q(1, 3);
    double Ytau2Q = myZ2_at_Q(1, 4);
 
    double WFRc1 = myZ2_at_Q(2, 0);
    double WFRc2 = myZ2_at_Q(2, 1);
 
    double beta1 = myGTHDM.betalambda1_Z2(la1Q, la3Q, la4Q, la5Q, Yb1Q, Ytau1Q);
    double beta2 = myGTHDM.betalambda2_Z2(la2Q, la3Q, la4Q, la5Q, YtQ, Yb2Q, Ytau2Q);
    double beta3 = myGTHDM.betalambda3_Z2(la1Q, la2Q, la3Q, la4Q, la5Q, YtQ, Yb1Q, Yb2Q, Ytau1Q, Ytau2Q);
    double beta4 = myGTHDM.betalambda4_Z2(la1Q, la2Q, la3Q, la4Q, la5Q, YtQ, Yb1Q, Yb2Q, Ytau1Q, Ytau2Q);
 
    gslpp::complex B1 = -3.*la1Q + 9.*beta1/2. + (i*M_PI - 1.)*(9.*la1Q*la1Q +
                        (2.*la3Q + la4Q)*(2.*la3Q + la4Q))/16./M_PI/M_PI -
                         3.*la1Q*WFRc1/32./M_PI/M_PI;
 
    gslpp::complex B2 = -3.*la2Q + 9.*beta2/2. + (i*M_PI - 1.)*(9.*la2Q*la2Q +
                        (2.*la3Q + la4Q)*(2.*la3Q + la4Q))/16./M_PI/M_PI -
                         3.*la2Q*(-WFRc1 + 2.*WFRc2)/32./M_PI/M_PI;
 
    gslpp::complex B3 = -2.*la3Q - la4Q + 3.*(2.*beta3 + beta4)/2. + 3.*(i*M_PI -
                        1.)*(la1Q + la2Q)*(2.*la3Q + la4Q)/16./M_PI/M_PI -
                        (2.*la3Q + la4Q)*WFRc2/32./M_PI/M_PI;
 
    gslpp::complex a_NLO = (B1 + B2 - sqrt((B1 - B2)*(B1 - B2) + 4.*B3*B3))/32./M_PI;
 
     // LO eigenvalue, as defined in Cacchio:2016qyh (Sign difference in front of the square-roots compared to Grinstein:2015rtl)
    double la1 = myGTHDMZ2->getlambda1_Z2();
    double la2 = myGTHDMZ2->getlambda2_Z2();
    double la3 = myGTHDMZ2->getlambda3_Z2();
    double la4 = myGTHDMZ2->getlambda4_Z2();
 
    double a_LO = (-3.*la1 - 3.*la2 - sqrt((3.*la1 - 3.*la2)*(3.*la1 - 3.*la2) +
                  4.*(2.*la3 + la4)*(2.*la3 + la4))) / 32. / M_PI;
 
    // To avoid applying the condition for accidentally small LO contributions
    if(std::fabs(a_LO) > 1./16./M_PI)
        return ((a_NLO - a_LO) / a_LO).abs();
    else
        return 0.009; // To allow perturbativity constraints as stringent as 1%
}

Member Data Documentation

myGTHDMZ2

const GeneralTHDMZ2* R1p00eveM_Z2::myGTHDMZ2

private

Definition at line 374 of file GeneralTHDMZ2Unitarity.h.

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

• GeneralTHDMZ2Unitarity.h
• GeneralTHDMZ2Unitarity.cpp