# Cross section

1. Oct 20, 2013

### Safinaz

Hi all,

I'd like to more understand what is the difference between when we draw the differential cross section

$\frac{d \sigma ~ (pb)}{dM ~ (GeV)}$, when we draw $\sigma ~ (pb) /bin$

and the total cross section $\sigma ~ (pb)$ .. I mean for a process like

p p > x x~ (where x is a particle has mx=100 GeV) .. $\frac{d \sigma ~ (pb)}{dM ~ (GeV)}$
and $\sigma ~ (pb) /bin$ VS. mx gives a peak at 100 GeV while $\sigma ~ (pb)$ gives the variation of $\sigma$ with mx ..

Bests,
Safinaz

Last edited: Oct 20, 2013