Dear Users, I would like to ask you how can I plot d_sigma/d_Pt graph for proton proton collisions using pythia event generator. I am also using root macro which plot d_N/d_Pt graph for pion and I have also attached this for you. I would be garetful if you could tell me how can I convert this example for my aim or any other example related to this. Any ideas would be appreciated. Kind regards.