a Code for the Combination of Indirect and Direct Constraints on High Energy Physics Models Logo
Alpha_2a Class Reference

A class for the CKM angle \(\alpha \) in degrees. More...

#include <alpha_2a.h>

+ Inheritance diagram for Alpha_2a:

Detailed Description

A class for the CKM angle \(\alpha \) in degrees.

Author
HEPfit Collaboration

This class is used to compute the CKM angle \(\alpha \) in degrees, extracted as \(\pi + 1/2 arg(%AmpDB2) - \gamma \). The results is given in the range [0, 180] deg.

Definition at line 24 of file alpha_2a.h.

Public Member Functions

 Alpha_2a (const StandardModel &SM_i)
 Constructor. More...
 
double computeThValue ()
 
- 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...
 
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

- 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 StandardModelSM
 A reference to an object of StandardMode class. More...
 
- Private Member Functions inherited from AmpDB2
 AmpDB2 (const StandardModel &SM_i)
 Constructor. More...
 
gslpp::complex getAmpBd (orders order)
 The value of \(M_{12}^{bd}\). More...
 
gslpp::complex getAmpBs (orders order)
 The value of \(M_{12}^{bs}\). More...
 
gslpp::complex getPBd ()
 
gslpp::complex getPBs ()
 
gslpp::complex AmpBd (orders order)
 A method to compute \(M_{12}^{bd}\). More...
 
gslpp::complex AmpBs (orders order)
 A method to compute \(M_{12}^{bs}\). More...
 
gslpp::complex PBd ()
 
gslpp::complex PBs ()
 
gslpp::complex RBs (orders order)
 A method to compute the ratio of the absolute value of the $B_s$ mixing amplitude over the Standard Model value. More...
 

Constructor & Destructor Documentation

◆ Alpha_2a()

Alpha_2a::Alpha_2a ( const StandardModel SM_i)
inline

Constructor.

Parameters
[in]SM_ia reference to an object of type StandardModel

Definition at line 30 of file alpha_2a.h.

30 : ThObservable(SM_i), AmpDB2(SM_i) {};

Member Function Documentation

◆ computeThValue()

double Alpha_2a::computeThValue ( )
virtual
Returns
The CKM angle \(\alpha \) in degrees

Implements ThObservable.

Definition at line 11 of file alpha_2a.cpp.

12 {
13  // alpha is really extracted as pi + 1/2 arg AmpDB2 - gamma
14  double a_2a = (M_PI + AmpBd(FULLNLO).arg()/2. - SM.getCKM().computeGamma() - SM.getPhiBd())/M_PI*180.;
15  if (a_2a < 0.)
16  a_2a += 180.;
17  else if (a_2a > 180.)
18  a_2a -= 180.;
19  return(a_2a);
20 }

The documentation for this class was generated from the following files:
ThObservable::ThObservable
ThObservable(const StandardModel &SM_i)
Constructor.
Definition: ThObservable.h:32
CKM::computeGamma
double computeGamma() const
The CKM angle .
Definition: CKM.cpp:87
gslpp::complex::arg
double arg() const
Definition: gslpp_complex.cpp:76
ThObservable::SM
const StandardModel & SM
A reference to an object of StandardMode class.
Definition: ThObservable.h:121
StandardModel::getPhiBd
virtual double getPhiBd() const
Half the relative phase of the $B_d$ mixing amplitude w.r.t. the Standard Model one.
Definition: StandardModel.h:2479
AmpDB2::AmpBd
gslpp::complex AmpBd(orders order)
A method to compute .
Definition: AmpDB2.cpp:70
AmpDB2::AmpDB2
AmpDB2(const StandardModel &SM_i)
Constructor.
Definition: AmpDB2.cpp:13
FULLNLO
Definition: OrderScheme.h:37
StandardModel::getCKM
CKM getCKM() const
A get method to retrieve the member object of type CKM.
Definition: StandardModel.h:879