Author :
Amidei, D. ; Campbell, M. ; Frisch, H. ; Grosso-Pilcher, C. ; Liss, T. ; Redlinger, G. ; Sanders, H. ; Shochet, M. ; Ting, J. ; Tsai, Y.D. ; Giannetti, P. ; Ristori, L. ; Dell´Orso, M.
Abstract :
The trigger logic for the Collider Detector Facility (CDF) at Fermilab is described. An analog/digital system constructs triggers based on clusters of energy in the calorimetry. These triggers are then combined with signals from the muon and central tracking systems to make a global trigger. Two levels of trigger logic have been implemented: a ´Level 1´ trigger which is dead-timeless, and a more sophisticated Level 2 trigger. The rejection factor provided by these two systems will be 103 - 104.
