Landau distribution

Hi all,

I did some fits with landau distribution by using fit panel. Now I’d just need the analytical formula for landau distribution that ROOT used. I tried to find out the formula but couldn’t find it. I’d be very grateful for your help.


Fitting with “landau” is equivalent to fit with


Thanks for the reply. I tried to understand how the Landau method has been constructed but it seems that there is no clear single form for the landau distribution (many if-loops with different forms for landau depending on the value of ‘v’). Anyway, I try to continue my work without knowing exactly the form for the fitted distribution.