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

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. IgnatenkoA. Ishikawa, A. Joffe, G. Kacarevic, S. Kananov, O. Karacheban, W. Klempt, S. Kotov, J. Kotula, U. Kruchonak, Sz Kulis, W. Lange, J. Leonard, T. Lesiak, A. Levy*, I. Levy, L. Linssen, W. Lohmann, J. Moron, A. Moszczynski, A. T. Neagu, B. Pawlik, T. Preda, A. Sailer, B. Schumm, S. Schuwalow, E. Sicking, K. Swientek, B. Turbiarz, N. Vukasinovic, T. Wojton, H. Yamamoto, L. Zawiejski, I. S. Zgura, A. Zhemchugov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


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.

Original languageEnglish
Article number579
JournalEuropean Physical Journal C
Issue number7
StatePublished - 1 Jul 2019


FundersFunder number
Israel German Foundation
Israel Planning and Budgeting Committee, Israel Academy of Sciences and Humanities
U.S. Department of EnergyDE-SC0010107
Horizon 2020 Framework Programme
German-Israeli Foundation for Scientific Research and Development
Comisión Nacional de Investigación Científica y Tecnológica
Fondo Nacional de Desarrollo Científico y Tecnológico1170345, PIA/Basal FB0821
Israel Science Foundation
Ministarstvo Prosvete, Nauke i Tehnološkog RazvojaOl171012
Ministerstwo Edukacji i Nauki3585/H2020/2016/2, 3501/H2020/2016/2
Israeli Centers for Research Excellence
Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si InovariiPN-II-PT-PCCA-2013-4-0967, PN-II-ID-PCE-2011-3-0978
Horizon 2020654168, AIDA-2020


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