The integrator aims to evaluate convolution of PDFgenLevel and resolution function. More...

Public Member Functions
void	init (double Mean, double Sigma, double SigmaK, double BMean, double BDelta, double Tau, double SigmaE, double Frac, double M0, double Eps, double CC, double Slope, double X)
	Init the parameters of the PDF integrator.

double	eval (double t)
	evaluate the PDF integrand for given t - the integration variable

double	integralTrap (double a, double b)
	Simple integration of the PDF for a to b based on the Trapezoidal rule (for validation)

double	integralTrapImp (double Eps, double a)
	Integration of the PDF which avoids steps and uses variable transformation (Trapezoidal rule as back-end)

double	integralKronrod (double a)
	Integration of the PDF which avoids steps and uses variable transformation (Gauss-Konrod rule as back-end)

Private Attributes
double	m_mean = 4
	mean position of the resolution function, i.e. (Gaus+Exp tails) conv Gaus

double	m_sigma = 30
	sigma of the resolution function

double	m_sigmaK = 30
	sigma of the gaus in the convolution

double	m_bMean = 0
	(bRight + bLeft)/2 where bLeft, bRight are the transition points between gaus and exp (in sigma)

double	m_bDelta = 2.6
	(bRight - bLeft)/2 where bLeft, bRight are the transition points between gaus and exp (in sigma)

double	m_tauL = 60
	1/slope of the left exponential tail

double	m_tauR = 60
	1/slope of the right exponential tail

double	m_sigmaE = 30
	sigma of the external gaus

double	m_frac = 0.1
	fraction of events in the external gaus

double	m_m0 = 10500
	invariant mass of the collisions

double	m_eps = 0.01
	cut-off term for the power-spectrum caused by the ISR (in GeV)

double	m_slope = 0.95
	power in the power-like spectrum from the ISR

double	m_x = 10400
	the resulting PDF is function of this variable the actual rec-level mass

double	m_C = 16
	the coeficient between part bellow eps and above eps cut-off

Detailed Description

The integrator aims to evaluate convolution of PDFgenLevel and resolution function.

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

Public Member Functions