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e-Article

The BaBar Silicon Vertex Tracker: Performance, running experience and radiation damage studies
Document Type
Conference
Source
2001 IEEE Nuclear Science Symposium Conference Record (Cat. No.01CH37310) Nuclear science symposium Nuclear Science Symposium Conference Record, 2001 IEEE. 1:540-544 vol.1 2001
Subject
Nuclear Engineering
Power, Energy and Industry Applications
Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Silicon
Mesons
Production facilities
Microstrip
Detectors
Position measurement
Geometry
Testing
Physics
Laboratories
Language
ISSN
1082-3654
Abstract
The Silicon Vertex Tracker (SVT) of the BABAR experiment at the PEP-II asymmetric B factory is a five layers double sided, AC coupled silicon microstrip detector. It represents a crucial element to measure with precision the decay position of B mesons, satisfying the severe constraints imposed by the accelerator design, in terms of geometry of the interaction region and conditions of operation. In the following paper the SVT performances are described. Radiation issues are discussed and the results of different tests aimed to study the SVT degeneration in performance due to the radiation damage are presented. The alignment procedure is described and a few BaBar physics results are presented as examples of the SVT capabilities to reconstruct decay vertices with good resolution and efficiency.