Pontificia Universidad Católica de Chile Pontificia Universidad Católica de Chile
H. Abramowicz, A. Abusleme, K. Afanaciev, Y. Benhammou, O. Borysov, M. Borysova, I. Bozovic-Jelisavcic, W. Daniluk, D. Dannheim, M. Demichev, K. Elsener, M. Firlej, E. Firu, T. Fiutowski, V. Ghenescu, M. Gostkin, M. Hempel, H. Henschel, M. Idzik, A. Ignat (2019)

Performance and Molière radius measurements using a compact prototype of LumiCal in an electron test beam

Revista : European Physical Journal C
Volumen : 79
Número : 579
Páginas : 1-15
Tipo de publicación : ISI Ir a publicación


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 Molière 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 Molière radius on the electron energy in the range 1–5 GeV was also studied. Good agreement was obtained between data and MC simulation.