The CMS barrel calorimeter response to particle beams from 2 to 350 GeV/c
Aničin, Ivan V.
(ukupan broj autora: 571)
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The response of the CMS barrel calorimeter (electromagnetic plus hadronic) to hadrons, electrons and muons over a wide momentum range from 2 to 350 GeV/c has been measured. To our knowledge, this is the widest range of momenta in which any calorimeter system has been studied. These tests, carried out at the H2 beam-line at CERN, provide a wealth of information, especially at low energies. The analysis of the differences in calorimeter response to charged pions, kaons, protons and antiprotons and a detailed discussion of the underlying phenomena are presented. We also show techniques that apply corrections to the signals from the considerably different electromagnetic (EB) and hadronic (HB) barrel calorimeters in reconstructing the energies of hadrons. Above 5 GeV/c, these corrections improve the energy resolution of the combined system where the stochastic term equals 84.7 +/- 1.6% and the constant term is 7.4 +/- 0.8%. The corrected mean response remains constant within 1.3% rms.
Source:European Physical Journal C. Particles and Fields, 2009, 60, 3, 359-373
- CERN, Department of Atomic Energy, Department of Science and Technology of India, U. S, U. S. National Science Foundation, RMKI-KFKI [T 016823], Ministry of Science, Education and Sport [023-0982887-3064], French CNRS/Institut de Physique Nucleaire et de Physique des Particules, French Commissariat a lEnergie Atomique, Greek General Secretariat for Research and Technology, Italian Istituto Nazionale di Fisica Nucleare, Federal Agency for Science and Innovations of the Ministry for Education and Science of the Russian Federation, Federal Agency for Atomic Energy of the Russian Federation, Russian Academy of Sciences, Ministry of Science of Serbia, Swiss Funding Agencies, Scientific and Technical Research Council of Turkey ( TUBITAK),, Turkish Atomic Energy Agency ( TAEK), Bogazici University Research Fund [04B301], Science and Technology Facilities Council