We can use just the MC shapes for 4 masses (don't fit them) to get the shapes of the intermediate mass points by interpolation
background function from EXO paper should fit well the data. If it is better with error function (which is actually turn on form trigger), the trigger inefficiency (in our case) is not zero (should be zero, eff = 100%).
We should change the binning - bin width should be a little bit less than dijet mass resolution (in order to see an excess in data). Use the one providing by dijet group.
Javier will help us with combine tool (meeting on Tuesday)