Mp. Bussa et al., ON A POSSIBLE 2ND-LEVEL TRIGGER FOR THE EXPERIMENT DISTO, Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields, 109(3), 1996, pp. 327-339
A two-level trigger is to be applied for suppression of the background
and for effective selection of events involving short-lived Lambda-,
Sigma- and phi-particles in the experiment DISTO. The first-level trig
ger is intended for selection of events by their multiplicity. The sec
ond-level trigger is applied for track recognition, in searching for a
secondary vertex, and for identifying the detected particles.