Speaker
Description
CMS is a multi-purpose detector constructed to study high-energy particle collisions of the LHC at CERN. An all-silicon pixel tracker system provides CMS with excellent resolution for charged tracks and efficient tagging of b-jets. At the beginning of 2017, a new pixel detector has been installed anticipating the increase of instantaneous luminosity of the LHC to up to $2\times10^{34}\textrm{cm}^{-2}\textrm{s}^{-1}$, well surpassing the rate capabilities of the previous detector. The new pixel detector features four central barrel layers and three end-cap disks in forward/backward directions for robust tracking and tagging performance. This contribution gives an overview of the design of the CMS Phase-1 pixel detector, with a special focus on the tracker performance during 2017 data taking.
