Simulation study of the electromagnetic calorimeter triggers in BES III

Based on the detector and trigger simulation of Beijing Spectrometer III (BES III) schemes of BES III EMC triggers are studied. Neutral triggers, Bhabha triggers and charged event triggers are designed to fulfill the requirements of the physics goals. The trigger parameters are optimized and the ability of backgrounds rejection are carefully studied. Trigger simulation for some typical physics channels are studied and the expected backgrounds event rates are obtained.