Summary
The SLD CCD vertex detector (VXD2) comprises 480 1 cm2 commercial CCDs in a 120 Mpixel detector, and was operational at the SLC from 1992 to 1995. The performance of VXD2 is presented, based upon three years of running experience. A new vertex detector (VXD3) will be installed in late 1995 for the future runs of SLD. VXD3 uses 96 13 cm2 custom made CCDs in a 307 Mpixel detector, and will provide 3 space point measurements per track of about 5 μm resolution in all three coordinates. The VXD3 detector will achieve significant improvements in impact parameter resolution (about a factor of two) and acceptance (about 20%) through optimised geometry and reduced material. The design and predicted performance of VXD3 are presented.
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References
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Agnew G. D. et al., Design and performance of the SLD vertex detector, a 120 MPixeltracking system, inProceedings of the XXVI International conference on High Energy Physics, Dallas, Tex., 1992.
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SLD Collaboration., McKemey, A. The SLD CCD pixel vertex detector and its upgrade. Nuov Cim A 109, 1027–1034 (1996). https://doi.org/10.1007/BF02823643
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DOI: https://doi.org/10.1007/BF02823643