Eur. Phys. J. C (2006) 46: 23-35
https://doi.org/10.1140/epjcd/s2006-02-002-x

Scientific Note

Reconstruction of the signal amplitude of the CMS electromagnetic calorimeter

¹ Laboratoire d’Annecy-le-Vieux de Physique des Particules, 74941, Annecy-le-Vieux, France
² Institute of Nuclear Physics “Demokritos”, 153 10, Attiki, Greece
³ “Vinca” Institute of Nuclear Sciences and Faculty of Physics, University of Belgrade, 11000, Belgrade, Serbia and Montenegro
⁴ Northeastern University, Boston, MA, 02115-5096, USA
⁵ Bristol University, Bristol, BS8 1TL, UK
⁶ National Central University, Chung-Li, Taiwan
⁷ Delhi University, Delhi, 110 007, India
⁸ Rutherford Appleton Laboratory, CCLRC, Didcot, OX11 0QX, UK
⁹ Joint Institute for Nuclear Research, 141980, Dubna, Moscow Region, Russia
¹⁰ European Organization for Nuclear Research, CERN, 1211, Geneva 23, Switzerland
¹¹ CEA/Saclay, 91191, Gif-sur-Yvette cedex, France
¹² University of Ioannina, 451 10, Ioannina, Greece
¹³ Laboratório de Instrumentação e Física Experimental de Partículas, 1000-149, Lisboa, Portugal
¹⁴ Instituto de Engenharia de Sistemas e Computadores, 1000-029, Lisboa, Portugal
¹⁵ Imperial College, London, SW7 2BZ, UK
¹⁶ Brunel University, Middlesex, UB8 3PH, UK
¹⁷ Università degli Studi Milano-Bicocca and INFN-Sezione di Milano, 20126, Milano, Italy
¹⁸ University of Minnesota, Minneapolis, MN, 55455, USA
¹⁹ Research Institute for Nuclear Problems, Belorussian State University, 220050, Minsk, Belarus
²⁰ Institute for Nuclear Research, Russian Academy of Sciences, 117312, Moscow, Russia
²¹ Lebedev Physical Institute, Russian Academy of Sciences, 117924, Moscow, Russia
²² Bhabha Atomic Research Centre, Mumbai, 400 085, India
²³ Yale University, New Haven, CT, 06520-8121, USA
²⁴ Cyprus University, 1678, Nicosia, Cyprus
²⁵ Laboratoire Leprince-Ringuet, Ecole Polytechnique, 91128, Palaiseau Cedex, France
²⁶ Charles C. Lauritsen Laboratory, California Institute of Technology, Pasadena, CA, 91125, USA
²⁷ State Research Center, 142284, Protvino, Moscow Region, Russia
²⁸ ENEA–CR Casaccia, 00060, S. Maria di Galeria, Roma, Italy
²⁹ Dipartimento di Fisica and INFN-Sezione di Roma, Università “La Sapienza”, 00185, Roma, Italy
³⁰ PMF, Split University, 21000, Split, Croatia
³¹ FESB, Technical University of Split, 21000, Split, Croatia
³² National Taiwan University, 106, Taipei, Taiwan
³³ Dipartimento di Fisica and INFN-Sezione di Torino, Università di Torino, 10125, Torino, Italy
³⁴ Dipartimento di Fisica and INFN-Sezione di Trieste, Università di Trieste, 34127, Trieste, Italy
³⁵ Institut de Physique Nucléaire, IN2P3-CNRS and Université C. Bernard Lyon I, 69622, Villeurbanne, France
³⁶ Paul Scherrer Institut, 5232, Villigen, Switzerland
³⁷ Yerevan Physics Institute, 375036, Yerevan 36, Armenia
³⁸ Institute for Particle Physics, ETH Zürich, 8093, Zürich, Switzerland
³⁹ High Energy Physics Institute, Tblisi, Georgia

Received: 10 April 2006
Revised: 13 April 2006
Published online: 16 June 2006

Abstract

The amplitude of the signal collected from the PbWO₄ crystals of the CMS electromagnetic calorimeter is reconstructed by a digital filtering technique. The amplitude reconstruction has been studied with test beam data recorded from a fully equipped barrel supermodule. Issues specific to data taken in the test beam are investigated, and the implementation of the method for CMS data taking is discussed.