Benedikt Vormwald (Hamburg University (DE))
The present CMS pixel detector designed for a luminosity of 10^34 cm-2s-1 will have to be replaced at the end of 2016. The new upgraded detector will have higher tracking efficiency and lower mass with four barrel layers and three forward/backward disks to provide a hit coverage up to absolute pseudo-rapidities of 2.5. In a second stage, in order to maintain its physics reach during the high luminosity phase of the LHC (HL-LHC), when the machine is expected to deliver an instantaneous luminosity of 5 x 10^34 cm^-2 s^-1 for total of 3000 fb^-1, CMS will build a new tracker, comprising completely new pixel detector and outer tracker. The ongoing R&D activities on both pixel and strip sensors will be presented. The present status of the Inner and Outer Tracker projects will be illustrated, and the possible perspectives will be discussed.
Arnd Meyer (Rheinisch-Westfaelische Tech. Hoch. (DE))