I. Ambats et al., STUDIES OF HADRON-ELECTRON SEPARATORS FOR THE ZEUS BARREL CALORIMETER, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 368(2), 1996, pp. 364-377
Two possible upgrades, a shower maximum detector and a presampler, des
igned to improve the low energy electron/hadron separation capabilitie
s of the ZEUS barrel calorimeter are described and test-beam results a
re reported. The presampler can also be used to correct for energy los
s of particles traversing the dead material in front of the calorimete
r.