Measurement of shower development and its Molière radius with a four-plane LumiCal test set-up

H. Abramowicz; A. Abusleme; K. Afanaciev; Y. Benhammou; L. Bortko; O. Borysov; M. Borysova; I. Bozovic-Jelisavcic; G. Chelkov; W. Daniluk; D. Dannheim; K. Elsener; M. Firlej; E. Firu; T. Fiutowski; V. Ghenescu; M. Gostkin; M. Hempel; H. Henschel; M. Idzik; A. Ignatenko; A. Ishikawa; S. Kananov; O. Karacheban; W. Klempt; S. Kotov; J. Kotula; D. Kozhevnikov; V. Kruchonok; B. Krupa; Sz. Kulis; W. Lange; J. Leonard; T. Lesiak; A. Levy; I. Levy; W. Lohmann; S. Lukic; J. Moron; A. Moszczynski; A. T. Neagu; F.-X. Nuiry; M. Pandurovic; B. Pawlik; T. Preda; O. Rosenblat; A. Sailer; B. Schumm; S. Schuwalow; I. Smiljanic; P. Smolyanskiy; K. Swientek; P. Terlecki; U. I. Uggerhoj; T. N. Wistisen; T. Wojton; H. Yamamoto; L. Zawiejski; I. S. Zgura; A. Zhemchugov

doi:10.1140/epjc/s10052-018-5611-9

EPJ

Measurement of shower development and its Molière radius with a four-plane LumiCal test set-up

H. Abramowicz¹, A. Abusleme², K. Afanaciev³, Y. Benhammou¹, L. Bortko⁴, O. Borysov¹, M. Borysova¹, I. Bozovic-Jelisavcic⁵, G. Chelkov⁶, W. Daniluk⁷, D. Dannheim⁸, K. Elsener⁸, M. Firlej⁹, E. Firu¹⁰, T. Fiutowski⁹, V. Ghenescu¹⁰, M. Gostkin⁶, M. Hempel⁴, H. Henschel⁴, M. Idzik⁹, A. Ignatenko³, A. Ishikawa¹¹, S. Kananov¹, O. Karacheban⁴, W. Klempt⁸, S. Kotov⁶, J. Kotula⁸, D. Kozhevnikov⁶, V. Kruchonok⁶, B. Krupa⁷, Sz. Kulis⁸, W. Lange⁴, J. Leonard⁴, T. Lesiak⁷, A. Levy¹^*, I. Levy¹, W. Lohmann⁴, S. Lukic⁵, J. Moron⁹, A. Moszczynski⁷, A. T. Neagu¹⁰, F.-X. Nuiry⁸, M. Pandurovic⁵, B. Pawlik⁷, T. Preda¹⁰, O. Rosenblat¹, A. Sailer⁸, B. Schumm¹², S. Schuwalow⁴, I. Smiljanic⁵, P. Smolyanskiy⁶, K. Swientek⁹, P. Terlecki⁹, U. I. Uggerhoj¹³, T. N. Wistisen¹³, T. Wojton⁷, H. Yamamoto¹¹, L. Zawiejski⁷, I. S. Zgura¹⁰ and A. Zhemchugov⁶

¹ Tel Aviv University, Tel Aviv, Israel
² Pontificia Universidad Catolica de Chile, Santiago, Chile
³ NC PHEP, Belarusian State University, Minsk, Belarus
⁴ DESY, Zeuthen, Germany
⁵ Vinca Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia
⁶ JINR, Dubna, Russia
⁷ IFJ PAN, 31342, Kraków, Poland
⁸ CERN, Geneva, Switzerland
⁹ Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Kraków, Poland
¹⁰ ISS, Bucharest, Romania
¹¹ Tohoku University, Sendai, Japan
¹² University of California, Santa Cruz, USA
¹³ Aarhus University, Aarhus, Denmark

Received: 15 May 2017
Accepted: 2 February 2018
Published online: 17 February 2018

Abstract

A prototype of a luminometer, designed for a future

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.

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EPJ

Measurement of shower development and its Molière radius with a four-plane LumiCal test set-up

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