Accelerator Neutrinos

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Hadronic shower development in Iron-Scintillator Tile Calorimetry

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 443:1 (2000) 51-70

Authors:

P Amaral, A Amorim, K Anderson, G Barreira, R Benetta, S Berglund, C Biscarat, G Blanchot, E Blucher, A Bogush, C Bohm, V Boldea, O Borisov, M Bosman, C Bromberg, J Budagov, S Burdin, L Caloba, J Carvalho, P Casadog, MV Castillo, M Cavalli-Sforza, V Cavasinni, R Chadelas, I Chirikov-Zorin, G Chlachidze, M Cobal, F Cogswell, F Colaço, S Cologna, S Constantinescu, D Costanzo, M Crouau, F Daudon, J David, M David, T Davidek, J Dawson, K De, T del Prete, A de Santo, B di Girolamo, S Dita, J Dolejsi, Z Dolezal, R Downing, I Efthymiopoulos, M Engström, D Errede, S Errede, H Evans, A Fenyuk, A Ferrer, V Flaminio, E Gallas, M Gaspar, I Gil, O Gildemeister, V Glagolev, A Gomes, V Gonzalez, S de la González Hoz, V Grabski, E Grauges, P Grenier, H Hakopian, M Haney, M Hansen, S Hellman, A Henriques, C Hebrard, E Higon, S Holmgren, J Huston, Y Ivanyushenkov, K Jon-And, A Juste, S Kakurin, G Karapetian, A Karyukhin, S Kopikov, V Kukhtin, Y Kulchitsky, W Kurzbauer, M Kuzmin, S Lami, V Lapin, C Lazzeroni, A Lebedev, R Leitner, J Li, Y Lomakin, O Lomakina, M Lokajicek, JM Lopez Amengual, A Maio, S Malyukov, F Marroquin, JP Martins, E Mazzoni

Abstract:

The lateral and longitudinal profiles of hadronic showers detected by a prototype of the ATLAS Iron-Scintillator Tile Hadron Calorimeter have been investigated. This calorimeter presents a unique longitudinal configuration of scintillator tiles. Using a fine-grained pion beam scan at 100 GeV, a detailed picture of transverse shower behaviour is obtained. The underlying radial energy densities for the four depth segments and for the entire calorimeter have been reconstructed. A three-dimensional hadronic shower parametrization has been developed. The results presented here are useful for understanding the performance of iron-scintillator calorimeters, for developing fast simulations of hadronic showers, for many calorimetry problems requiring the integration of a shower energy deposition in a volume and for future calorimeters design.
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Measurement of the Lifetime of the Tau Lepton

ArXiv hep-ex/0003023 (2000)
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Performance of the CLEO III LiF-TEA ring imaging Cherenkov detector in a high-energy muon beam

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 441:3 (2000) 374-392

Authors:

M Artuso, R Ayad, F Azfar, A Efimov, S Kopp, R Mountain, G Majumder, S Schuh, T Skwarnicki, S Stone, G Viehhauser, JC Wang, T Coan, V Fadeyev, I Volobouev, J Ye, S Anderson, Y Kubota, A Smith, E Lipeles

Abstract:

The CLEO III Ring Imaging Cherenkov detector uses LiF radiators to generate Cherenkov photons which are then detected by proportional wire chambers using a mixture of CH4 and TEA gases. The first two photon detector modules which were constructed, were taken to the Fermilab and tested in a beam dump that provided high-momentum muons. We report on results using both plane and 'sawtooth'-shaped radiators. Specifically, we discuss the number of photoelectrons observed per ring and the angular resolution. The particle separation ability is shown to be sufficient for the physics of CLEO III.
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Inclusive Sigma+ and Sigma0 Production in Hadronic Z Decays

ArXiv hep-ex/0002066 (2000)
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Measurements of Cross Sections and Forward-Backward Asymmetries at the Z Resonance and Determination of Electroweak Parameters

ArXiv hep-ex/0002046 (2000)
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