Class to calculate the differential decay rate, R(D), R(D*), polarizations of tau and D* using BSTD model based on [M. More...

#include <EvtBSemiTauonicDecayRateCalculator.h>

Public Member Functions
	EvtBSemiTauonicDecayRateCalculator ()
	The default constructor.

	~EvtBSemiTauonicDecayRateCalculator ()
	The destructor.

double	dGammadwdcostau (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, double mtau, int tauhel, int Dhel, double w, double costau)
	Function calculates the differential decay rate dGamma/dw/dcostau.

double	dGammadw (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, double mtau, int tauhel, int Dhel, double w)
	Function calculates the differential decay rate dGamma/dw, integrated for costau.

double	dGammadcostau (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, double mtau, int tauhel, int Dhel, double costau)
	Function calculates the differential decay rate dGamma/dcostau, integrated for w.

double	Gamma (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, double mtau, int tauhel, int Dhel)
	Function calculates the helicity dependent decay rate Gamma, integrated for w and costau.

double	GammaD (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, double mtau)
	Function calculates the decay rate Gamma for Dtaunu decay, integrated for w and costau and summed for helicities.

double	GammaDstar (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, double mtau)
	Function calculates the differential decay rate Gamma for D*taunu decay, integrated for w and costau and summed for helicities.

double	GammaSMD (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, const double mlep=0.0005110)
	Function calculates the SM decay rate Gamma for Dlnu decay, integrated for w and costau and summed for helicities.

double	GammaSMDstar (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, const double mlep=0.0005110)
	Function calculates the SM decay rate Gamma for D*lnu decay, integrated for w and costau and summed for helicities.

double	RGammaD (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, const double mtau, const double mlep=0.0005110)
	Function calculates the ratio of Br(B->Dtaunu)/Br(B->Dlnu), R(D).

double	RGammaDstar (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, const double mtau, const double mlep=0.0005110)
	Function calculates the ratio of Br(B->Dtaunu)/Br(B->Dlnu), R(D*).

double	PtauD (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, const double mtau)
	Function calculates the polarization of tau, (RH - LH)/(LH + RH), in B->Dtaunu decay.

double	PtauDstar (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, const double mtau)
	Function calculates the polarization of tau, (RH - LH)/(LH + RH), in B->D*taunu decay.

double	PDstar (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, const double mtau)
	Function calculates the polarization of D, longitudinal/(longitudinal + transverse), in B->Dtaunu decay.

double	pf (const EvtBSemiTauonicHelicityAmplitudeCalculator &BSTD, double mtau, int Dhel, double w)
	Phase space factor, which is multiplied to the helicity amplitude to calculate the decay rate.

Private Member Functions
double	EvaluateByW (double x, double param)
	Function used internally for numerical integration.

double	EvaluateByCostau (double x, double param)
	Function used internally for numerical integration.

double	EvaluateBy2D (double x, double param)
	Function used internally for numerical integration.

Private Attributes
const EvtBSemiTauonicHelicityAmplitudeCalculator *	m_BSTD
	temporal pointer to the helicity amplitude calculator for EvaluateBy* functions