How calculate net area in root

oumaima_ben_chamakh · January 15, 2021, 6:00pm

Hello , please can anyone explain me how calculate net area in root ?

couet · January 15, 2021, 6:12pm

Net area ? what do you mean ?

oumaima_ben_chamakh · January 19, 2021, 3:41pm

i need to calculate detector efficiency and the expression of this is
efficacité detecteur
with N IS is the net area at the interest peak energy

couet · January 21, 2021, 1:00pm

I am not sure there is a predefined function in ROOT to compute such formulae.
May be @moneta has an idea about it.

Axel · January 25, 2021, 9:42am

I suppose that’s the integral? You can use TF1::Integral() if it’s coming from a fit. We’ll need a bit more context to be able to help, as is I might just reply "You want to divide N by A times Ptc? Use / and *"