Speaker
Description
In order to provide optimal reconstruction of charged tracks, the positions of the nearly twenty-thousands silicon sensors of the central tracking system of the CMS detector must be determined at a better precision than their in- trinsic resolution, under a procedure called alignment. At CMS, the alignment also includes the orientation and surface deformations of the sensors. Data- driven methods to carefully align the detector and validate the alignment are presented in the context of the legacy alignment for CMS Run-2 data, corre- sponding to the data accumulated from 2016 to 2018. Systematic distortions are discussed, such as weak modes and variations of the conditions during data taking over time, in particular effects related to the radiation damages. Finally, we discuss prospects for CMS Run-3.
Details
Patrick L.S. Connor,
Institut für Experimentalphysik & Center for Data and Computing in natural Sciences
Universität Hamburg
Germany
https://www.physik.uni-hamburg.de/iexp
https://www.cdcs.uni-hamburg.de/
| Is this abstract from experiment? | Yes |
|---|---|
| Name of experiment and experimental site | CMS |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | No |
