LEP2dsigmadcosTau Class Reference

A class for the cross section of \(e^+e^-\to \tau^+\tau^-\) above the \(Z\) pole. More...

#include <LEP2sigmaTau.h>

Inheritance diagram for LEP2dsigmadcosTau:

Detailed Description

A class for the cross section of \(e^+e^-\to \tau^+\tau^-\) above the \(Z\) pole.

Author

HEPfit Collaboration

Copyright

GNU General Public License

Definition at line 54 of file LEP2sigmaTau.h.

Public Member Functions
double	computeThValue ()
	LEP2dsigmadcosTau (const StandardModel &SM_i, const double sqrt_s_i, const double cos_i, const double cosmin_i, const double cosmax_i)
	LEP2dsigmadcosTau constructor. More...
Public Member Functions inherited from LEP2ThDiffObservableBin
	LEP2ThDiffObservableBin (const StandardModel &SM_i, const double sqrt_s_i, const double cos_i, const double cosmin_i, const double cosmax_i)
	LEP2ThDiffObservableBin 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
Public Attributes inherited from LEP2ThDiffObservableBin
const double	cos
const double	cosmax
const double	cosmin
const LEP2test	myTEST
const double	s
const double	sqrt_s
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

LEP2dsigmadcosTau()

LEP2dsigmadcosTau::LEP2dsigmadcosTau ( const StandardModel &  SM_i, const double  sqrt_s_i, const double  cos_i, const double  cosmin_i, const double  cosmax_i  )

inline

LEP2dsigmadcosTau constructor.

Parameters

[in]	SM_i	a reference to an object of type StandardModel
[in]	sqrt_s_i	the CM energy of the e^+ e^- pair
[in]	cos_i	the polar angle of the final state particle wrt e^-
[in]	cosmin_i	the minimum polar angle of the final state particle wrt e^- in the bin
[in]	cosmax_i	the maximum polar angle of the final state particle wrt e^- in the bin

Definition at line 65 of file LEP2sigmaTau.h.

    : LEP2ThDiffObservableBin(SM_i, sqrt_s_i, cos_i, cosmin_i, cosmax_i) 
    {
 
    }

Member Function Documentation

computeThValue()

double LEP2dsigmadcosTau::computeThValue ( )

virtual

Returns

the differential cross section for e^+ e^- -> tau^+ tau^- at sqrt_s in pb

Implements ThObservable.

Definition at line 31 of file LEP2sigmaTau.cpp.

{ 
    double dsigmadcos_tau = SM.LEP2dsigmadcosBinTau(s, cos, cosmin, cosmax);
    
    // Intrinsic SM theory uncertainty
    double SM_intr_err = SM.getOptionalParameter("errSMint_deelldcosLEP2");
    
    #ifdef LEP2TEST
    sigma_tau = myTEST.sigmaTauTEST(sqrt_s)/SM.GeVminus2_to_nb/1000.0;
    #endif 
    
    //  Approximate formulae returns result in pb
    return ( dsigmadcos_tau * ( 1.0 + SM_intr_err ) );
}

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

• LEP2sigmaTau.h
• LEP2sigmaTau.cpp