TY - JOUR
T1 - Performance of the uranium/plastic scintillator calorimeter for the HELIOS experiment at CERN
AU - Åkesson, T.
AU - Angelis, A. L.S.
AU - Corriveau, F.
AU - Devenish, R. C.E.
AU - Di Tore, G.
AU - Fabjan, C. W.
AU - Lamarche, F.
AU - Leroy, C.
AU - McCubbin, M. L.
AU - McCubbin, N. A.
AU - Olsen, L. H.
AU - Seman, M.
AU - Sirois, Y.
AU - Wigmans, R.
AU - Willis, W. J.
N1 - Funding Information:
The work described in this paper would not have been possible without the help of many people. We benefited greatly from the presence of an excellent data-taking infrastructure, to which many of our HELIOS colleagues contributed. Outstanding technical assistance in the (re)construction and installation of the calorimeters was provided by J.C. Berset, M. Burns, K. Bussmann, B. Couprie, G. Delavallade, M. Gibson, J. Hiddleston, C. Matin and J.P. Vanuxem. We are also grateful for the support of the Natural Sciences and Engineering Research Council of Canada, the Science and Engineering Research Council of the United Kingdom, and the Department of Energy of the USA.
PY - 1987/12/15
Y1 - 1987/12/15
N2 - We describe the calorimeter system serving the HELIOS experiment at CERN, its calibration, and its performances measured in test experiments. The calorimeter signal for hadrons was found to be proportional to the energy to within 2% over the energy range 8-200 GeV. Over the same energy range the energy resolution σ E scales as 1 E for both electromagnetic and hadronic showers. The values found were (0.215 ± 0.007) E and (0.337 ± 0.012) E, respectively, for the detection of single particles. The signal ratios e/mip and e π are 0.70 ± 0.05 and 0.984 ± 0.006, where the latter ratio was found to be dependent on the signal integration time the quoted number being obtained for a 130 ns gate. The energy resolution for multiparticle detection was found to be about twice as large as for the detection of single particles in the actual calorimeter configuration. The energy flow logic, designed to provide trigger information on physics quantities such as transverse energy and missing energy, was shown to be very accurate and reliable.
AB - We describe the calorimeter system serving the HELIOS experiment at CERN, its calibration, and its performances measured in test experiments. The calorimeter signal for hadrons was found to be proportional to the energy to within 2% over the energy range 8-200 GeV. Over the same energy range the energy resolution σ E scales as 1 E for both electromagnetic and hadronic showers. The values found were (0.215 ± 0.007) E and (0.337 ± 0.012) E, respectively, for the detection of single particles. The signal ratios e/mip and e π are 0.70 ± 0.05 and 0.984 ± 0.006, where the latter ratio was found to be dependent on the signal integration time the quoted number being obtained for a 130 ns gate. The energy resolution for multiparticle detection was found to be about twice as large as for the detection of single particles in the actual calorimeter configuration. The energy flow logic, designed to provide trigger information on physics quantities such as transverse energy and missing energy, was shown to be very accurate and reliable.
UR - http://www.scopus.com/inward/record.url?scp=0023595744&partnerID=8YFLogxK
U2 - 10.1016/0168-9002(87)90862-X
DO - 10.1016/0168-9002(87)90862-X
M3 - Article
AN - SCOPUS:0023595744
VL - 262
SP - 243
EP - 263
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 2-3
ER -