tau_e_gamma Class Reference

A class for calculating the branching ratio of the process \( \tau \to e \gamma \). More...

#include <li_lj_gamma.h>

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Detailed Description

A class for calculating the branching ratio of the process \( \tau \to e \gamma \).

Author
HEPfit Collaboration

The tau_e_gamma class calculates the branching ratio of the process \( \tau \to e \gamma \) in the model.

Definition at line 103 of file li_lj_gamma.h.

Public Member Functions

double computeThValue ()
 
 tau_e_gamma (const StandardModel &SM_i)
 Calculates the value of the process \( \tau \to e \gamma \). 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 StandardModelgetModel ()
 A get method to get the model. 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...
 
 ThObservable (const StandardModel &SM_i)
 Constructor. More...
 
 ThObservable (const ThObservable &orig)
 The copy constructor. More...
 
virtual ~ThObservable ()
 The default destructor. More...
 

Private Attributes

const StandardModelmySM
 Constructor containing the Wilson coefficient. More...
 

Additional Inherited Members

- Protected Attributes inherited from ThObservable
double max
 the bin maximum. More...
 
double min
 The bin minimum. More...
 
const StandardModelSM
 A reference to an object of StandardMode class. More...
 

Constructor & Destructor Documentation

tau_e_gamma::tau_e_gamma ( const StandardModel SM_i)

Calculates the value of the process \( \tau \to e \gamma \).

Returns
value of the process \( \tau \to e \gamma \).

Definition at line 47 of file li_lj_gamma.cpp.

48 : ThObservable(SM_i), mySM(SM_i)
49 {}
const StandardModel & mySM
Constructor containing the Wilson coefficient.
Definition: li_lj_gamma.h:121
ThObservable(const StandardModel &SM_i)
Constructor.
Definition: ThObservable.h:29

Member Function Documentation

double tau_e_gamma::computeThValue ( )
virtual
Returns
value of the process \( \tau \to e \gamma \).

Implements ThObservable.

Definition at line 51 of file li_lj_gamma.cpp.

52 {
53  double alph = mySM.getAle();
54  double mTAU = mySM.getLeptons(StandardModel::TAU).getMass();
56  double BR_tau_e_gamma = (alph*pow(mTAU,5) * ((*(allcoeff_te[LO])) * (*(allcoeff_te[LO])).conjugate()).abs() / (2.26735e-12) );
57  return BR_tau_e_gamma;
58 }
Particle getLeptons(const StandardModel::lepton p) const
A get method to retrieve the member object of a lepton.
gslpp::vector< gslpp::complex > ** ComputeCoeffli_lj_gamma(int li_lj)
Computes the Wilson coefficient for the process .
Definition: LeptonFlavour.h:58
complex pow(const complex &z1, const complex &z2)
const StandardModel & mySM
Constructor containing the Wilson coefficient.
Definition: li_lj_gamma.h:121
LeptonFlavour * getMyLeptonFlavour() const
Definition: OrderScheme.h:33
double getAle() const
A get method to retrieve the fine-structure constant .
const double & getMass() const
A get method to access the particle mass.
Definition: Particle.h:61

Member Data Documentation

const StandardModel& tau_e_gamma::mySM
private

Constructor containing the Wilson coefficient.

Definition at line 121 of file li_lj_gamma.h.


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