Recent results and running experience of the new ALEPH Vertex Detector

A description of the ALEPH Vertex Detector (VDET 91), including the mechanical structure and the improved data acquisition system, is given. The apparatus consists of two complete layers of silicon detectors with double-sided readout which provide a full x, y, z information of the impact points of c...

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Veröffentlicht in:	IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) 1992-08, Vol.39 (4), p.701-706
Hauptverfasser:	Batignani, G., Bauer, C., Becker, H., Bloch, B., Boudreau, J., Brown, D., Bosi, F., Bosisio, L., Carpinelli, M., Carr, J., Ciocci, A., Coyle, P., Dell'Orso, R., Dietl, H., Drinkard, J., Focardi, E., Forti, F., Giorgi, M., Hansl-Kozanecka, T., Hauff, D., Holl, P., Jacobsen, R., Lancon, E., Lauber, J., Litke, A., Lutz, G., Lutjens, G., Mannelli, E., Manner, W., Mattison, T., McNeal, M., Menary, S., Moneta, L., Moser, H.G., Mours, B., Parrini, G., Piccinini, S., Redlinger, G., Rizzi, D., Rizzo, G., Rousseau, D., Tonelli, G., Triggiani, G., Schwartz, A.S., Schwemling, P., Settles, R., Seywerd, H., Sharma, V., Struder, L., Vannini, C., Verdini, P.G., Walsh, J., Waltermann, G., Walther, S., Wear, J., Weber, F.
Format:	Artikel
Sprache:	eng
Schlagworte:	CHARGED PARTICLES Data acquisition Detectors ELEMENTARY PARTICLES Energy resolution Exact sciences and technology Face detection FERMIONS HIGH ENERGY PHYSICS INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY Instruments, apparatus, components and techniques common to several branches of physics and astronomy Jacobian matrices LEPTONS MEASURING INSTRUMENTS MUONS Other topics in instruments, apparatus, components and techniques common to several branches of physics and astronomy PARTICLE TRACKS PERFORMANCE TESTING PHYSICS Position measurement RADIATION DETECTORS SEMICONDUCTOR DETECTORS SI SEMICONDUCTOR DETECTORS Signal resolution Signal to noise ratio Silicon Springs TESTING 440104 > Radiation Instrumentation-- High Energy Physics Instrumentation
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Zusammenfassung:	A description of the ALEPH Vertex Detector (VDET 91), including the mechanical structure and the improved data acquisition system, is given. The apparatus consists of two complete layers of silicon detectors with double-sided readout which provide a full x, y, z information of the impact points of charged particles. The authors show results on signal-to-noise ratio for minimum ionizing particles and efficiency in hit/track matching. Results on position, impact parameter, and momentum resolution are also shown as measured using high momentum muons. The first preliminary study on vertexing techniques and their impact on physics analysis is discussed.< >
ISSN:	0018-9499 1558-1578
DOI:	10.1109/23.159691