Speaker
Dr
Thijs Cornelissen
(CERN)
Description
While most high energy experiments use track fitting software that is
based on the Kalman technique, the ATLAS offline reconstruction has
several global track fitters available. One of these is the global chi^2
fitter, which is based on the scattering angle formulation of the track
fit. One of the advantages of this method over the Kalman fit is that it
can provide the scattering angles and related quantities (e.g. the
residual derivatives) to the alignment algorithms. The algorithm has been
implemented in the new common tracking framework in ATLAS, the philosophy
of which is to improve the modularity and flexibility of the tracking
software. This flexibility has proven crucial for the understanding of the
data from the testbeam and cosmic runs. An overview of recent results will
be presented, in particular the results from the combined tracking with
the inner detector and the muon spectrometer using the cosmics data.
| Submitted on behalf of Collaboration (ex, BaBar, ATLAS) | ATLAS |
|---|
Author
Dr
Thijs Cornelissen
(CERN)
