The fast trigger simulation runs the ALICE EMCAL/DCAL trigger algorithms on a map of charges of particles deposited in the EMCAL. Using a simplified trigger channel mapping, the position of a particle in eta and phi is mapped to a trigger channel. The class TriggerMaker makes this transparent to the user. It is the users responsibility to

• Determine the energy deposit in the detector
• Define the trigger thresholds (as function of energy)
• select the patches found by the trigger maker (function FindPatches)

The following simplifications are applied:

• No gaps between fastors within a supermodule
• Gaps between PHOS and DCAL in eta are ignored.
• PHOS mapping is part of the EMCAL mapping (assumption: PHOS towers ~ 1/4 of DCAL towers)