The Compact Muon Solenoid (CMS) Tracker Collaboration has recently revised
the tracking-detector layout. While the previous design relied on Micro Str
ip Gas Chamber (MSGC) and silicon detectors, the new layout implements soli
d state sensors as the sole technological choice. The new all-silicon layou
t is presented and the projected performance is discussed in terms of sever
al benchmark topologies. (C) 2001 Published by Elsevier Science B.V.