Performance and Moli`ere radius measurements using a compact prototype of LumiCal in an electron test beam

Abstract

A new design of a detector plane of sub-millimetre thickness for an electromagnetic sampling calorimeter is presented. It is intended to be used in the luminometers LumiCal and BeamCal in future linear $e^{+}{e}^{-}$ collider experiments. The detector planes were produced utilising novel connectivity scheme technologies. They were installed in a compact prototype of the calorimeter and tested at DESY with an electron beam of energy 1-5 GeV. The performance of a prototype of a compact LumiCal comprising eight detector planes was studied. The effective Moli`ere radius at 5 GeV was determined to be (8.1 +/- 0.1 (stat) +/- 0.3 (syst)) mm, a value well reproduced by the Monte Carlo (MC) simulation (8.4 +/- 0.1) mm. The dependence of the effective Moli`ere radius on the electron energy in the range 1-5 GeV was also studied. Good agreement was obtained between data and MC simulation.

arXiv comment16 pages, 28 figures, Published in EPJC. Please note: Fig 16 in the published version us incorrect. The correct one appears in this replaced version

References in corpus (5)

• Forward Instrumentation for ILC Detectors
• The Parameterized Simulation of Electromagnetic Showers in Homogeneous and Sampling Calorimeters
• One-loop electroweak radiative corrections to polarized Bhabha scattering
• Measurement of shower development and its Molière radius with a four-plane LumiCal test set-up
• Beam Tests of a Multilayer LumiCal Prototype

Cited by in corpus (8)

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• Studies of high-field QED with the LUXE experiment at the European XFEL
• Detector Challenges of the strong-field QED experiment LUXE at the European XFEL
• Instrumentation Challenges of the Strong-Field QED Experiment LUXE at the European XFEL
• R&D for compact calorimeters for $e^{+}{e}^{-}$ colliders and their application to the LUXE experiment