V. Alberico et al., THE HERA-B ELECTROMAGNETIC CALORIMETER PRE-TRIGGER SYSTEM, Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields, 110(12), 1997, pp. 1453-1462
In this document the pretrigger system developed for the electromagnet
ic calorimeter of the HERA-B experiment is described. The system owns
a lot of frontier features for calorimetry-based triggers and its desi
gn performances are such that some possible implementations of it can
be foreseen for the future high-energy collider experiments.