Beam Tests of a Multilayer LumiCal Prototype
Oleksandr Borysov (for the FCAL collaboration)
TL;DR
This paper reports on the first beam test of a multilayer LumiCal prototype, evaluating its electromagnetic shower performance and Molière radius measurement using a 5 GeV electron beam at CERN, with simulation comparisons.
Contribution
First beam test of a multilayer LumiCal prototype with silicon detectors, providing performance data and comparison with simulations.
Findings
Measured Molière radius consistent with simulations
Detailed analysis of electromagnetic shower transverse structure
Demonstrated feasibility of LumiCal for luminosity measurement
Abstract
LumiCal is a sampling electromagnetic calorimeter designed for the precise measurement of integrated luminosity in electron positron linear collider experiments. The present report contains a description and results of the first beam test of a multilayer LumiCal prototype with four silicon detector planes. A 5 GeV electron beam from the CERN PS T9 facility was used to study the performance of the LumiCal prototype. Presented results are mainly focused on the transverse structure of the observed electromagnetic shower and the Moli\`ere radius measurement. A comparison with MC simulation is also discussed.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Detector Development and Performance · Muon and positron interactions and applications