Revamp double loop for systematics
We should remove the double loop over photons and jets sooner than later to have a consistent setting for all objects systematics. Desired code (pseudo):
photon_systs = ...
jets_systs = ...
for variation in photon_systs + jets_systs + "Nominal":
event selection
if variation in photon_systs:
photons = varied_photons
elif variation in jets_systs:
jets = varied_jets
everything is saved to diphoton object