학술논문

Measurement of shower development and its Molière radius with a four-plane LumiCal test set-up
Document Type
article
Source
European Physical Journal C: Particles and Fields, Vol 78, Iss 2, Pp 1-18 (2018)
Subject
Astrophysics
QB460-466
Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Language
English
ISSN
1434-6044
1434-6052
Abstract
Abstract A prototype of a luminometer, designed for a future $$e^+e^-$$ e+e- collider detector, and consisting at present of a four-plane module, was tested in the CERN PS accelerator T9 beam. The objective of this beam test was to demonstrate a multi-plane tungsten/silicon operation, to study the development of the electromagnetic shower and to compare it with MC simulations. The Molière radius has been determined to be 24.0 ± 0.6 (stat.) ± 1.5 (syst.) mm using a parametrization of the shower shape. Very good agreement was found between data and a detailed Geant4 simulation.