S. Akhmadaliev et al., Results from a new combined test of an electromagnetic liquid argon calorimeter with a hadronic scintillating-tile calorimeter, NUCL INST A, 449(3), 2000, pp. 461-477
A new combined test of an electromagnetic liquid argon accordion calorimete
r and a hadronic scintillating-tile calorimeter was carried out at the CERN
SPS. These devices are prototypes of the barrel calorimeter of the future
ATLAS experiment at the LHC. The energy resolution of pions in the energy r
ange from 10 to 300 GeV at an incident angle a of about 12 degrees is well
described by the expression sigma/E = ((41.9 +/- 1.6)%/root E + (1.8 +/- 0.
1)%)circle plus(1.8 +/- 0.1)/E, where E is in GeV. The response to electron
s and muons was evaluated. Shower profiles, shower leakage and the angular
resolution of hadronic showers were also studied. Results are compared with
those from the previous beam test. (C) 2000 Elsevier Science B.V. All righ
ts reserved.