The trigger system of the Pierre Auger Surface Detector: Operation, efficiency and stability

Document Type

Conference Proceeding

Publication Date



The trigger system of the Surface Detector (SD) of the Pierre Auger Observatory is described, from the identification of candidate showers (E > eV) at the level of a single station, among a huge background (mainly single muons), up to the selection of real events and the rejection of random coincidences at a higher central trigger level (including the reconstruction accuracy). Efficiency of a single station trigger is evaluated using real data , and the high performance of event selection hierarchy will be demonstrated.

Publication Source (Journal or Book title)

29th International Cosmic Ray Conference, ICRC 2005

First Page


Last Page


This document is currently not available here.