Author/Authors :
Mours، نويسنده , , B. P. Boudreau and B. D. Johnson، نويسنده , , J. and Jacobsen، نويسنده , , R.G. and Mattison، نويسنده , , T. and Martin، نويسنده , , E.B. and Menary، نويسنده , , S. and Moneta، نويسنده , , L. and Redlinger، نويسنده , , G. and Focardi، نويسنده , , E. and Parrini، نويسنده , , G. and Scarlini، نويسنده , , E. and Walther، نويسنده , , S. and Carr، نويسنده , , J. and Coyle، نويسنده , , P. and Drinkard، نويسنده , , J. and Rousseau، نويسنده , , D. a، نويسنده ,
Abstract :
The ALEPH silicon vertex detector is the first detector operating in a colliding beam environment that uses silicon strip detectors which provide readout on both sides and hence a three-dimensional point measurement for the trajectory of charged particles. The detector system was commissioned successfully at the e+e− collider LEP at the research centre CERN, Switzerland, during the year 1991 while taking data at the Z0 resonance. The achieved spatial resolution of the complete 73 728 channel device (intrinsic plus alignment) is 12 μm in the r-f view and 12 μm in the z view. The design and construction of the entire detector system are discussed in detail and the experience gained in running the detector will be described with special emphasis on the uses of this novel tracking device for the physics of short-lived heavy particles produced in the decays of the Z0 resonance.
