The Presampler for the Forward and Rear Calorimeter in the ZEUS Detector
A. Bamberger, et al. (ZEUS Presampler Group)
TL;DR
This paper presents the design, construction, and testing of a presampler detector for the ZEUS calorimeter, which improves energy measurement accuracy by correcting for energy lost in inactive material.
Contribution
It introduces a novel presampler detector with segmented scintillators and wavelength-shifting fibers, demonstrating its effectiveness in energy correction for the ZEUS detector.
Findings
Test beam data confirms improved energy measurement accuracy.
The presampler effectively corrects for energy lost in inactive material.
Design and construction details enable replication and further development.
Abstract
The ZEUS detector at HERA has been supplemented with a presampler detector in front of the forward and rear calorimeters. It consists of a segmented scintillator array read out with wavelength-shifting fibers. We discuss its desi gn, construction and performance. Test beam data obtained with a prototype presampler and the ZEUS prototype calorimeter demonstrate the main function of this detector, i.e. the correction for the energy lost by an electron interacting in inactive material in front of the calorimeter.
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