Time resolution of the ATLAS barrel liquid argon electromagnetic calorimeter

The time reconstruction performance of the ATLAS electromagnetic calorimeter readout is studied. The contribution of the electronics to the time resolution is estimated to be about 20 ps, thus demonstrating the possibility of achieving a small constant term in the time resolution for particles. The...

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Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 597; no. 2; pp. 178 - 188
Main Authors: Aharrouche, M., Colas, J., Di Ciaccio, L., El Kacimi, M., Gaumer, O., Gouanère, M., Goujdami, D., Lafaye, R., Laplace, S., Perrodo, P., Prieur, D., Przysiezniak, H., Sauvage, G., Tarrade, F., Wingerter-Seez, I., Zitoun, R., Lanni, F., Ma, H., Rajagopalan, S., Rescia, S., Takai, H., Belymam, A., Benchekroun, D., Hakimi, M., Hoummada, A., Stroynowski, R., Zarzhitsky, P., Ye, J., Aleksa, M., Beck Hansen, J., Carli, T., Fassnacht, P., Gianotti, F., Hervas, L., Lampl, W., Unal, G., Collot, J., Hostachy, J.Y., Ledroit-Guillon, F., Martin, P., Malek, F., Viret, S., Ban, J., Leltchouk, M., Parsons, J.A., Sippach, W., Banfi, D., Carminati, L., Cavalli, D., Costa, G., Delmastro, M., Fanti, M., Mandelli, L., Mazzanti, M., Tartarelli, G.F., Bourdarios, C., Fayard, L., Fournier, D., Graziani, G., Iconomidou-Fayard, L., Kado, M., Lelas, D., Plamondon, M., Poggioli, L., Puzo, P., Rousseau, D., Sacco, R., Serin, L., Simion, S., Zerwas, D., Camard, A., Lacour, D., Laforge, B., Nikolic-Audit, I., Schwemling, Ph, Cleland, W., Ghazlane, H., Cherkaoui El Moursli, R., Idrissi Fakhr-Eddine, A., Boonekamp, M., Kerschen, N., Mansoulié, B., Meyer, J.P., Schwindling, J., Lund-Jensen, B.
Format: Journal Article
Language:English
Published: Elsevier B.V 2008
Elsevier
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Summary:The time reconstruction performance of the ATLAS electromagnetic calorimeter readout is studied. The contribution of the electronics to the time resolution is estimated to be about 20 ps, thus demonstrating the possibility of achieving a small constant term in the time resolution for particles. The resolution to electromagnetic showers produced by an electron beam is also measured. After correction for the effects due to the calorimeter geometry, a 100 ps constant term is found for a typical cell.
ISSN:0168-9002
1872-9576
1872-9576
DOI:10.1016/j.nima.2008.08.142