“School of Particles”
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| Paper IPM / Particles / 9557 |
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| Abstract: | |||||
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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 � 1.6constant term is 7.4 � 0.8remains constant within 1.3
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