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Intercalibration of the barrel electromagnetic calorimeter of the CMS experiment at start-up

  • P. Adzic*
  • , R. Alemany-Fernandez
  • , N. Almeida
  • , G. Anagnostou
  • , D. Andelin
  • , M. Anfreville
  • , I. Anicin
  • , Z. Antunovic
  • , R. Arcidiacono
  • , M. W. Arenton
  • , E. Auffray
  • , S. Argiro
  • , A. Askew
  • , O. Atramentov
  • , S. Baccaro
  • , S. Baffioni
  • , M. Balazs
  • , D. Barney
  • , L. M. Barone
  • , A. Bartoloni
  • C. Baty, D. Bandurin, S. Beauceron, W. Bell, R. Benetta, M. Bercher, C. Bernet, U. Berthon, M. Besancon, B. Betev, R. Beuselinck, C. Biino, J. Blaha, P. Bloch, S. Blyth, A. Bornheim, J. Bourotte, A. M. Brett, R. M. Brown, D. Britton, M. Buehler, P. Busson, B. Camanzi, T. Camporesi, E. Carrera, N. Cartiglia, F. Cavallari, M. Cerutti, P. Chang, Y. H. Chang, C. Charlot, E. A. Chen, W. T. Chen, Z. Chen, R. Chipaux, B. C. Choudhary, R. K. Choudhury, D. J.A. Cockerill, C. Combaret, S. Conetti, F. Cossutti, B. Cox, D. G. Cussans, I. Dafinei, D. R. Da Silva Di Calafiori, G. Daskalakis, G. Davatz, A. David, K. Deiters, M. Dejardin, M. Djordjevic, R. Della Negra, G. Della Ricca, D. Del Re, A. De Min, D. Denegri, P. Depasse, J. Descamps, M. Diemoz, E. Di Marco, G. Dissertori, M. Dittmar, L. Djambazov, L. Dobrzynski, S. Drndarevic, J. E. Duboscq, D. Dutta, M. Dzelalija, A. Elliott-Peisert, H. El Mamouni, I. Evangelou, D. L. Evans, B. Fabbro, J. L. Faure, J. Fay, F. Ferri, P. S. Flower, D. Franci, G. Franzoni
*Autor correspondiente de este trabajo
  • University of Belgrade
  • Laboratório de Instrumenta ão e Física Experimental de Partículas
  • Université di Milano-Bicocca
  • RWTH Aachen University
  • University of Virginia
  • CEA Saclay
  • University of Belgrade
  • Technical University of Split
  • Université di Torino
  • CERN
  • Florida State University
  • ENEA-Casaccia Research Center
  • Laboratoire Leprince-Ringuet
  • Université di Roma La Sapienza
  • Universite Claude Bernard Lyon 1
  • Kansas State University
  • Brunel University London
  • ETH Zurich
  • Imperial College London
  • National Central University
  • Rutherford Appleton Laboratory
  • University of Delhi
  • National Taiwan University
  • Bhabha Atomic Research Centre
  • Université di Trieste
  • University of Bristol
  • Demokritos National Centre for Scientific Research
  • Paul Scherrer Institut
  • Cornell University
  • University of Ioannina
  • University of Minnesota-Twin Cities

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

30 Citas (Scopus)

Resumen

Calibration of the relative response of the individual channels of the barrel electromagnetic calorimeter of the CMS detector was accomplished, before installation, with cosmic ray muons and test beams. One fourth of the calorimeter was exposed to a beam of high energy electrons and the relative calibration of the channels, the intercalibration, was found to be reproducible to a precision of about 0.3%. Additionally, data were collected with cosmic rays for the entire ECAL barrel during the commissioning phase. By comparing the intercalibration constants obtained with the electron beam data with those from the cosmic ray data, it is demonstrated that the latter provide an intercalibration precision of 1.5% over most of the barrel ECAL. The best intercalibration precision is expected to come from the analysis of events collected in situ during the LHC operation. Using data collected with both electrons and pion beams, several aspects of the intercalibration procedures based on electrons or neutral pions were investigated.

Idioma originalInglés
Número de artículoP10007
PublicaciónJournal of Instrumentation
Volumen3
N.º10
DOI
EstadoPublicada - 2008
Publicado de forma externa

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