Speaker
A. Salzburger
(UNIVERSITY OF INNSBRUCK)
Description
The ATLAS reconstruction software requires extrapolation to arbitrary oriented
surfaces of different types inside a non-uniform magnetic field. In addition multiple
scattering and energy loss effects along the propagated trajectories have to be taken
into account. A good performace in respect of computing time consumption is crucial
due to hit and track multiplicity in high luminosity events at the LHC and the small
time window of the ATLAS high level trigger.
Therefor stable and fast algorithms for the propagation of the track parameters and
their associated covariance matrices in specific representations to different
surfaces in the detector are required.
The recently developped track extrapolation package inside the new ATLAS offline
tracking software is presented. Timing performace studies, integration tests with
client algorithms and results on ATLAS 2004 Combined Test Beam data are given.
Primary author
A. Salzburger
(UNIVERSITY OF INNSBRUCK)
