The first step in the ntuple-level analysis is to plot the Z boson mass peak. This is done using a Jupyter notebook that you loaded into SWAN previously.
You will need to select the *_plotting_the_z_peak.ipynb
that corresponds to the server you are working on. In
most cases, this will be LXPLUS.
The details of the exercise are presented in the slides attached to the associated event agenda as well as in the notebook.