Procedure
Rather than forcing you to grind through the usual data analysis procedures, the elastic and background events have been visually represented. In the measurements collected by TOTEM are much more complicated than simple elastic scatterings of protons, there are many magnetic fields which affect the movement of the protons. Sophisticated computer programs are required to understand the data. Here however, the computer programs have already examined the data and converted it into a more approachable form.
Any event you recognize as elastic scattering should be entered into the provided program for later consideration. All ‘background’ events should be disregarded. Once all of the events have been processed, you will be prompted to see the results of the measurement, which is related to the angular distribution of scattered protons.