Nb. Sinev et al., INITIAL IMPACT PARAMETER RESOLUTION OF THE NEW SLD VERTEX DETECTOR, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 409(1-3), 1998, pp. 243-246
During 1996 the SLD collaboration completed the construction of, and b
egan the operation of, a new vertex detector (VXD3). This detector, ba
sed on 96 CCD's each of 13 cm(2) area, is an upgrade of the original v
ertex detector of SLD (VXD2), and is made possible by advances in the
technology of CCD detectors. New front-end electronics and a new data
acquisition system were developed for this upgrade. Its improved chara
cteristics will enhance many SLD measurements, and open the possibilit
y to observe B-s(o)-mixing. More than 50 000 Z events obtained with th
e new vertex detector have been analyzed. Results on the new detector
performance (including resolution evaluation) from this first data are
presented. (C) 1998 Published by Elsevier Science B.V. All rights res
erved.