ALICE T0 Detector: start, trigger, and online luminosity

ALICE T0 serves as a start, trigger, and luminosity detector for the ALICE Experiment.\nThe accurate interaction time (START) serves as the reference signal for the Time-Of-Flight (TOF), which is used fo particle identification. T0 supplies five different trigger signals to the Central Trigger Processor (CTP). The most important of these is the T0 vertex providing prompt and accurate confirmation of the location of the primary interaction point along the beam axis within the set boundaries. The detector is also used for online luminosity monitoring providing fast feedback to the accelerator team.