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EvtBSemiTauonic2HDMType2 Class Reference
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The EvtGen model of semi-tauonic B decays including the charged higgs effect of 2HDM Type2 based on [M. More...

#include <EvtBSemiTauonic2HDMType2.h>

Inheritance diagram for EvtBSemiTauonic2HDMType2:

Public Member Functions

 EvtBSemiTauonic2HDMType2 ()
 The default constructor

 
virtual ~EvtBSemiTauonic2HDMType2 ()
 The destructor

 
std::string getName ()
 The function returns the model name.
 
EvtDecayBase * clone ()
 The function makes a copy of an EvtBSemiTauonic2HDMType2 object.
 
void decay (EvtParticle *p)
 The function evaluates the decay amplitude of the parent particle.
 
void initProbMax ()
 The function sets the maximum value of the probability.
 
void init ()
 The function initializes the decay.
 

Private Attributes

EvtBSemiTauonicHelicityAmplitudeCalculator * m_CalcHelAmp
 A pointer to the helicity amplitude calculator.
 
EvtBSemiTauonicAmplitude * m_CalcAmp
 A pointer to the spin-dependent amplitude calculator specific to the spin type of the daughter meson.
 

Detailed Description

The EvtGen model of semi-tauonic B decays including the charged higgs effect of 2HDM Type2 based on [M.

Tanaka and R. Watanabe PRD87,034028(2013)].

The model implements B->D*taunu and B->Dtaunu decays including the charged higgs effect of 2HDM Type2 based on the calculation in [M. Tanaka and R. Watanabe Phys. Rev. D87, 034028 (2013)]. The example of the decay.dec description is as follows Decay B0 0.01 D*+ tau- nu_tau BSTD2HDMTYPE2 rho_A1^2 R_1(1) R_2(1) a_R3 m_b m_c tan(beta)/m_H^+ [m_H^+] (7 or 8 parameters) 0.01 D+ tau- nu_tau BSTD2HDMTYPE2 rho_1^2 a_S1 m_b m_c tan(beta)/m_H^+ [m_H^+] (5 or 6 parameters) Enddecay Here rho_1^2, rho_A1^2, R_1(1) and R_2(1) are the HQET form factor parameters estimated by the data of the D(*)lnu decays. m_b and m_c are bottom and quark masses used in the scalar form factors (m_c is the running mass at m_b scale), The CS2 term corresponding to -m_tau*m_c/(m_H^+)^2 is ignored by default unless the parameter m_H^+ is given explicitly. a_R3 and a_S1 are parameters for the theoretical uncertainties of scalar form factors related to O(1/m_q) correction. The authors of [PRD87,034028] use a_R3 and a_S1 = 1 +/- 1 to estimate the uncertainty for it.

Definition at line 37 of file EvtBSemiTauonic2HDMType2.h.

Member Data Documentation

◆ m_CalcAmp

EvtBSemiTauonicAmplitude* m_CalcAmp
private

A pointer to the spin-dependent amplitude calculator specific to the spin type of the daughter meson.


Definition at line 74 of file EvtBSemiTauonic2HDMType2.h.

◆ m_CalcHelAmp

EvtBSemiTauonicHelicityAmplitudeCalculator* m_CalcHelAmp
private

A pointer to the helicity amplitude calculator.


Definition at line 71 of file EvtBSemiTauonic2HDMType2.h.

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