Speaker
Dr
Martin Weber
(RWTH Aachen, Germany)
Description
The full-silicon tracker of the CMS experiment with its 15148 strip and 1440
pixel modules is of an unprecedented size. For optimal track-parameter
resolution, the position and orientation of its modules need to be determined
with a precision of a few micrometer.
Starting from the inclusion of survey measurements, the use of a hardware
alignment system, and track based alignment, this talk details the strategy
that is used to align the CMS tracker and reports recent results. These
include the usage of novel algorithms that allow to solve the optimization
problem with the required accuracy in manageable time, the selection of
special data samples to constrain weak modes, and the overall layout of the
software alignment framework, database model and data flow for alignment.
| Submitted on behalf of Collaboration (ex, BaBar, ATLAS) | CMS Tracker |
|---|
Primary author
Dr
Martin Weber
(RWTH Aachen, Germany)
Co-author
Tracker Group CMS
(CMS)
