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. Ignatenko; A. 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

doi:10.1140/epjc/s10052-019-7077-9

EPJ

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

H. Abramowicz¹, A. Abusleme², K. Afanaciev³, Y. Benhammou¹, O. Borysov¹, M. Borysova¹^,13, I. Bozovic-Jelisavcic⁴, W. Daniluk⁵, D. Dannheim⁶, M. Demichev⁷, K. Elsener⁶, M. Firlej⁸, E. Firu⁹, T. Fiutowski⁸, V. Ghenescu⁹, M. Gostkin⁷, M. Hempel¹⁰^,14, H. Henschel¹⁰, M. Idzik⁸, A. Ignatenko³^,15, A. Ishikawa¹¹, A. Joffe¹, G. Kacarevic⁴, S. Kananov¹, O. Karacheban¹⁰^,14, W. Klempt⁶, S. Kotov⁷, J. Kotula⁵, U. Kruchonak⁷, Sz. Kulis⁶, W. Lange¹⁰, J. Leonard¹⁰, T. Lesiak⁵, A. Levy¹^*, I. Levy¹, L. Linssen⁶, W. Lohmann¹⁰^,14, J. Moron⁸, A. Moszczynski⁵, A. T. Neagu⁹, B. Pawlik⁵, T. Preda⁹, A. Sailer⁶, B. Schumm¹², S. Schuwalow¹⁰^,16, E. Sicking⁶, K. Swientek⁸, B. Turbiarz⁵, N. Vukasinovic⁴, T. Wojton⁵, H. Yamamoto¹¹, L. Zawiejski⁵, I. S. Zgura⁹ and A. Zhemchugov⁷

¹ Raymond & Beverly Sackler School of Physics & Astronomy, Tel Aviv University, Tel Aviv, Israel
² Department of Electrical Engineering, Pontificia Universidad Catolica de Chile, Santiago, Chile
³ NC PHEP, Belarusian State University, Minsk, Belarus
⁴ Vinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
⁵ IFJ PAN, 31342, Kraków, Poland
⁶ CERN, Geneva, Switzerland
⁷ JINR, Dubna, Russia
⁸ Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Kraków, Poland
⁹ ISS, Bucharest, Romania
¹⁰ DESY, Zeuthen, Germany
¹¹ Tohoku University, Sendai, Japan
¹² University of California, Santa Cruz, USA
¹³ Visitor from Institute for Nuclear Research NANU (KINR), Kyiv, 03680, Ukraine
¹⁴ Brandenburg University of Technology, Cottbus, Germany
¹⁵ Present address: DESY, Zeuthen, Germany
¹⁶ DESY, Hamburg, Germany

Received: 30 December 2018
Accepted: 27 June 2019
Published online: 10 July 2019

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

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.

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EPJ

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

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