CERN Accelerating science

Article
Report number	arXiv:1812.11426
Title	Performance and Moli`ere radius measurements using a compact prototype of LumiCal in an electron test beam
Author(s)	Abramowicz, H. (Tel Aviv U.) ; Abusleme, A. (Chile U., Catolica) ; Afanaciev, K. (Minsk, High Energy Phys. Ctr.) ; Benhammou, Y. (Tel Aviv U.) ; Borysov, O. (Tel Aviv U.) ; Borysova, M. (Tel Aviv U.) ; Bozovic-Jelisavcic, I. (VINCA Inst. Nucl. Sci., Belgrade) ; Daniluk, W. (Cracow, INP) ; Dannheim, D. (CERN) ; Demichev, M. (Dubna, JINR) ; Elsener, K. (CERN) ; Firlej, M. (AGH-UST, Cracow) ; Firu, E. (Bucharest, Inst. Space Science) ; Fiutowski, T. (AGH-UST, Cracow) ; Ghenescu, V. (Bucharest, Inst. Space Science) ; Gostkin, M. (Dubna, JINR) ; Hempel, M. (DESY, Zeuthen ; Brandenburg Tech. U.) ; Henschel, H. (DESY, Zeuthen) ; Idzik, M. (AGH-UST, Cracow) ; Ishikawa, A. (Tohoku U.) ; Ignatenko, A. (Minsk, High Energy Phys. Ctr. ; DESY, Zeuthen) ; Joffe, A. (Tel Aviv U.) ; Kacarevic, G. (VINCA Inst. Nucl. Sci., Belgrade) ; Kananov, S. (Tel Aviv U.) ; Karacheban, O. (DESY, Zeuthen ; Brandenburg Tech. U.) ; Klempt, W. (CERN) ; Kotov, S. (Dubna, JINR) ; Kotula, J. (Cracow, INP) ; Kruchonak, U. (Dubna, JINR) ; Kulis, Sz (CERN) ; Lange, W. (DESY, Zeuthen) ; Leonard, J. (DESY, Zeuthen) ; Lesiak, T. (Cracow, INP) ; Levy, A. (Tel Aviv U.) ; Levy, I. (Tel Aviv U.) ; Linssen, L. (CERN) ; Lohmann, W. (DESY, Zeuthen ; Brandenburg Tech. U.) ; Moron, J. (AGH-UST, Cracow) ; Moszczynski, A. (Cracow, INP) ; Neagu, A.T. (Bucharest, Inst. Space Science) ; Pawlik, B. (Cracow, INP) ; Preda, T. (Bucharest, Inst. Space Science) ; Sailer, A. (CERN) ; Schumm, B. (UC, Santa Cruz) ; Schuwalow, S. (DESY ; DESY, Zeuthen) ; Sicking, E. (CERN) ; Swientek, K. (AGH-UST, Cracow) ; Turbiarz, B. (Cracow, INP) ; Vukasinovic, N. (VINCA Inst. Nucl. Sci., Belgrade) ; Wojton, T. (Cracow, INP) ; Yamamoto, H. (Tohoku U.) ; Zawiejski, L. (Cracow, INP) ; Zgura, I.S. (Bucharest, Inst. Space Science) ; Zhemchugov, A. (Dubna, JINR)
Publication	2019-07-10
Imprint	2018-12-29
Number of pages	16
Note	16 pages, 28 figures, FCAL Collaboration
In:	Eur. Phys. J. C 79 (2019) 579
DOI	10.1140/epjc/s10052-019-7077-9
Subject category	physics.ins-det ; Detectors and Experimental Techniques
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.
Copyright/License	publication: (License: CC-BY-4.0) preprint: (License: arXiv nonexclusive-distrib 1.0)

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