Response of the CALICE Si-W electromagnetic calorimeter physics prototype to electrons

C. Adloff, Y. Karyotakis, J. Repond, J. Yu, G. Eigen, C. M. Hawkes, Y. Mikami, O. Miller, N. K. Watson, J. A. Wilson, T. Goto, G. Mavromanolakis, M. A. Thomson, D. R. Ward, W. Yan, D. Benchekroun, A. Hoummada, M. Krim, M. Benyamna, D. BoumedieneN. Brun, C. Cârloganu, P. Gay, F. Morisseau, G. C. Blazey, D. Chakraborty, A. Dyshkant, K. Francis, D. Hedin, G. Lima, V. Zutshi, J. Y. Hostachy, L. Morin, N. D'Ascenzo, U. Cornett, D. David, R. Fabbri, G. Falley, K. Gadow, E. Garutti, P. Göttlicher, T. Jung, S. Karstensen, V. Korbel, A. I. Lucaci-Timoce, B. Lutz, N. Meyer, V. Morgunov, M. Reinecke, F. Sefkow, P. Smirnov, A. Vargas-Trevino, N. Wattimena, O. Wendt, N. Feege, M. Groll, J. Haller, R. D. Heuer, S. Richter, J. Samson, A. Kaplan, H. Ch Schultz-Coulon, W. Shen, A. Tadday, B. Bilki, E. Norbeck, Y. Onel, E. J. Kim, N. I. Baek, D. W. Kim, K. Lee, S. C. Lee, K. Kawagoe, Y. Tamura, D. A. Bowerman, P. D. Dauncey, A. M. Magnan, H. Yilmaz, O. Zorba, V. Bartsch, M. Postranecky, M. Warren, M. Wing, M. Faucci Giannelli, M. G. Green, F. Salvatore, M. Bedjidian, R. Kieffer, I. Laktineh, D. S. Bailey, R. J. Barlow, M. Kelly, R. J. Thompson, M. Danilov, E. Tarkovsky, N. Baranova, D. Karmanov, M. Korolev, M. Merkin, A. Voronin, A. Frey, S. Lu, K. Prothmann, F. Simon, B. Bouquet, S. Callier, P. Cornebise, J. Fleury, H. Li, F. Richard, Ch de la Taille, R. Poeschl, L. Raux, M. Ruan, N. Seguin-Moreau, F. Wicek, M. Anduze, V. Boudry, J. C. Brient, G. Gaycken, P. Mora e Freitas, G. Musat, M. Reinhard, A. Rougé, J. Ch Vanel, H. Videau, K. H. Park, J. Zacek, J. Cvach, P. Gallus, M. Havranek, M. Janata, M. Marcisovsky, I. Polak, J. Popule, L. Tomasek, M. Tomasek, P. Ruzicka, P. Sicho, J. Smolik, V. Vrba, J. Zalesak, B. Belhorma, M. Belmir, S. W. Nam, I. H. Park, J. Yang, J. S. Chai, J. T. Kim, G. B. Kim, J. Kang, Y. J. Kwon

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Abstract

A prototype silicon-tungsten electromagnetic calorimeter (ECAL) for an international linear collider (ILC) detector was installed and tested during summer and autumn 2006 at CERN. The detector had 6480 silicon pads of dimension 1 × 1 cm2. Data were collected with electron beams in the energy range 6-45 GeV. The analysis described in this paper focuses on electromagnetic shower reconstruction and characterises the ECAL response to electrons in terms of energy resolution and linearity. The detector is linear to within approximately the 1% level and has a relative energy resolution of (16.53 ± 0.14 (stat) ± 0.4 (syst)) / sqrt(E (GeV)) ⊕ (1.07 ± 0.07 (stat) ± 0.1 (syst)) (%). The spatial uniformity and the time stability of the ECAL are also addressed.

Original languageEnglish
Pages (from-to)372-383
Number of pages12
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume608
Issue number3
DOIs
Publication statusPublished - 2009 Sep 21

Bibliographical note

Funding Information:
We would like to thank the technicians and the engineers who contributed to the design and construction of the prototypes, including U. Cornett, G. Falley, K Gadow, P. Göttlicher, S. Karstensen and P. Smirnov. We also gratefully acknowledge the DESY and CERN managements for their support and hospitality, and their accelerator staff for the reliable and efficient beam operation. We would like to thank the HEP group of the University of Tsukuba for the loan of drift chambers for the DESY test-beam. The authors would like to thank the RIMST (Zelenograd) group for their help and sensors manufacturing. This work was supported by the Bundesministerium für Bildung und Forschung, Germany; by the DFG cluster of excellence “Origin and Structure of the Universe”; by the Helmholtz-Nachwuchsgruppen Grant VH-NG-206; by the BMBF, Grant numbers 05HS6VH1 and 05HS6GU1; by the Alexander von Humboldt Foundation (Research Award IV, RUS1066839 GSA); by joint Helmholtz Foundation and RFBR Grant HRJRG-002, Russian Agency for Atomic Energy, ISTC Grant 3090; by Russian Grants SS-1329.2008.2 and RFBR0402/17307a and by the Russian Ministry of Education and Science; by CRI(MST) of MOST/KOSEF in Korea; by the US Department of Energy and the US National Science Foundation; by the Ministry of Education, Youth and Sports of the Czech Republic under the Projects AV0 Z3407391, AV0 Z10100502, LC527 and by the Grant Agency of the Czech Republic under the Project 202/05/0653; and by the Science and Technology Facilities Council, UK.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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