Poisson-distributed Landau-Gauss-Convolutions. More...

#include <FitFunctions.h>

Public Member Functions
double	operator() (double x, double par)

Detailed Description

Poisson-distributed Landau-Gauss-Convolutions.

Energy distribution measured in detector if there can be more than one MIP per event.
Uses a zero-clipped Poisson (at least 1 MIP due to trigger).

Definition at line 472 of file FitFunctions.h.

Member Function Documentation

◆ operator()()

double Fitf_langaus_poisson::operator()	(	double *	x,
		double *	par
	)

inline

Parameters

x

par par[0]=Width (scale) parameter of Landau density
par[1]=Most Probable (MP, location) parameter of Landau density
par[2]=Total area (integral -inf to inf, normalization constant)
par[3, 4]=Widths (sigma_0, sigma_1) of convoluted Gaussian functions
par[5]= \(\lambda\) parameter of the Poisson distribution. The mean number of MIPs is \(\mu=\lambda/\left(1-exp(-\lambda)\right)\).
par[6]=Signal per MIP (distance between two MIPs)

Returns: Func value

Definition at line 485 of file FitFunctions.h.

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

src/utils/FitFunctions.h

Public Member Functions

Detailed Description

Member Function Documentation

◆ operator()()