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Energy resolution of the barrel of the CMS Electromagnetic Calorimeter

  • P. Adzic
  • , R. Alemany-Fernandez
  • , C. B. Almeida
  • , N. M. Almeida
  • , G. Anagnostou
  • , M. G. Anfreville
  • , I. Anicin
  • , Z. Antunovic
  • , E. Auffray
  • , S. Baccaro
  • , S. Baffioni
  • , P. Baillon
  • , D. Barney
  • , L. M. Barone
  • , P. Barrillon
  • , A. Bartoloni
  • , S. Beauceron
  • , F. Beaudette
  • , K. W. Bell
  • , R. Benetta
  • M. J. Bercher, U. Berthon, B. Betev, R. Beuselinck, A. Bhardwaj, W. Bialas, C. Biino, S. Bimbot, J. Blaha, P. Bloch, S. Blyth, P. Bordalo, A. Bornheim, J. M. Bourotte, D. Britton, R. M. Brown, R. Bruneliere, P. Busson, T. Camporesi, N. Cartiglia, F. Cavallari, M. Cerutti, D. Chamont, P. Chang, Y. H. Chang, C. Charlot, S. Chatterji, E. A. Chen, R. Chipaux, B. C. Choudhary, D. J. Cockerill, C. Collard, C. Combaret, F. Cossutti, J. C. Da Silva, I. Dafinei, G. Daskalakis, G. Davatz, D. Decotigny, A. De Min, K. Deiters, M. Dejardin, D. Del Re, R. Della Negra, G. Della Ricca, P. Depasse, J. Descamp, G. Dewhirst, S. Dhawan, M. Diemoz, G. Dissertori, M. Dittmar, L. Djambazov, L. Dobrzynski, S. Drndarevic, M. Dupanloup, M. Dzelalija, J. Ehlers, H. El Mamouni, A. Elliott-Peisert, I. Evangelou, B. Fabbro, J. L. Faure, J. Fay, F. Ferri, P. S. Flower, G. Franzoni, W. Funk, A. Gaillac, C. Gargiulo, S. Gascon Shotkin, Y. Geerebaert, F. X. Gentit, A. Ghezzi, J. Gilly, A. S. Giolo-Nicollerat, A. Givernaud, S. Gninenko, A. Go, N. Godinovic, N. Golubev, I. Golutvin, R. Gomez-Reino, P. Covoni, J. Grahl, P. Gras, J. Greenhalgh, J. P. Guillaud, M. Haguenauer, G. Hamel De Montechenault, M. Hansen, H. F. Heath, J. A. Hill, P. R. Hobson, D. Holmes, A. G. Holzner, G. W. Hou, B. Ille, Q. Ingram, A. Jain, P. Jarry, C. Jauffret, M. Jha, M. A. Karar, S. K. Katarla, V. Katchanov, B. W. Kennedy, K. Kloukinas, P. Kokkas, M. Korjik, N. Krasnikov, D. Krpic, A. Kyriakis, M. Lebeau, P. Lecomte, P. Lecoq, M. C. Lemaire, M. Lethuillier, W. Lin, A. L. Lintern, A. Lister, V. Litvin, E. Locci, A. B. Lodge, E. Longo, D. Loukas, D. Luckey, W. Lustermann, C. Lynch, C. K. Mackay, M. Malberti, D. Maletic, I. Mandjavidze, N. Manthos, A. Markou, H. Mathez, A. Mathieu, V. Matveev, G. Maurelli, E. Menichetti, P. Meridiani, P. Milenovic, G. Milleret, P. Mine, M. Mur, Y. Musienko, A. Nardulli, J. Nash, H. Neal, P. Nedelec, P. Negri, F. Nessi-Tedaldi, H. B. Newman, A. Nikitenko, M. M. Oberino, R. A. Ofierzynski, G. C. Organtini, P. Paganini, M. Paginoni, I. Papadopoulos, R. Paramatti, N. Pastrone, F. Pauss, I. Puljak, A. Pullia, J. Puzovic, S. Ragazzi, S. Ramos, S. Rahatlou, J. Rander, K. Ranjan, O. Ravat, M. Raymond, P. A. Razis, N. Redaelli, D. Renker, S. Reucroft, J. M. Reymond, M. Reynaud, S. Reynaud, T. Romanteau, F. Rondeaux, A. Rosowsky, C. Rovelli, P. Rumerio, R. Rusack, S. V. Rusakov, M. J. Ryan, H. Rykaczewski, T. Sakhelashvili, R. Salerno, M. Santos, C. Seez, I. Semeniouk, O. Sharif, P. Sharp, C. Shepherd Themistocleous, S. Shevchenko, R. K. Shivpuri, G. Sidiropoulos, D. Sillou, A. Singovski, Y. Sirois, A. M. Sirunyan, B. Smith, V. J. Smith, M. Sproston, H. Suter, J. Swain, T. Tabarelli De Fatis, M. Takahashi, R. J. Tapper, A. Tcheremoukhine, I. Teixeira, J. P. Teixeira, O. Teller, C. Timlin, F. A. Triantis, S. Troshin, N. Tyurin, K. Ueno, A. Uzunian, J. Varela, N. Vaz Cardoso, P. Verrecchia, P. Vichoudis, S. Vigano, G. Viertel, T. Virdee, E. Vlassov, M. Wang, A. Weinstein, J. H. Williams, I. Yaselli, A. Zabi, N. Zamiatin, S. Zelepoukine, M. Zeller, L. Y. Zhang, J. Zhang, Y. Zhang, K. Zhu, R. Y. Zhu
  • University of Belgrade
  • Laboratório de Instrumentaçãao e Física Experimental de Partículas
  • Instituto de Engenharia de Sistemas e Computadores, Lisbon
  • Institute of Nuclear Physics Demokritos
  • Institut Pierre Simon Laplace, CNRS and CEA
  • Laboratoire de Physique des Particules
  • Northeastern University
  • European Organization for Nuclear Research
  • Centro Ricerche Casaccia
  • Dipartimento di Fisica
  • Ip Paris
  • Imperial College London
  • CCLRC Rutherford Appleton Laboratory
  • ETH Zurich
  • University of Delhi
  • University of Turin
  • IGFL, Université de Lyon, Université Lyon 1
  • National Central University
  • California Institute of Technology
  • National Taiwan University
  • University of Trieste
  • University of Milano-Bicocca
  • Paul Scherrer Institut
  • Brunel University London
  • Yale University
  • University of Split
  • University of Ioannina
  • University of Minnesota Twin Cities
  • Institute for Nuclear Research of the Russian Academy of Sciences
  • Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
  • Joint Institute for Nuclear Research, Dubna
  • University of Bristol
  • Bhabha Atomic Research Centre
  • State Research Center
  • Institute for Nuclear Problems of Belarusian State University
  • University of Cyprus
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • High Energy Physics Institute
  • Yerevan Physics Institute
  • Institute for Theoretical and Experimental Physics

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34 Citations (Scopus)

Résumé

The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by summing the energy measured in arrays of 3×3 or 5×5 channels. There was no significant amount of correlated noise observed within these arrays. For electrons incident at the centre of the studied 3×3 arrays of crystals, the mean stochastic term was measured to be 2.8% and the mean constant term to be 0.3%. The amount of the incident electrons' energy which is contained within the array depends on its position of incidence. The variation of the containment with position is corrected for using the distribution of the measured energy within the array. For uniform illumination of a crystal with 120 GeV electrons a resolution of 0.5% was achieved. The energy resolution meets the design goal for the detector.

langue originaleAnglais
Numéro d'article18
journalJournal of Instrumentation
Volume2
étatPublié - 11 avr. 2007

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