Speaker
Dr
Paul Miyagawa
(University of Manchester)
Description
The ATLAS solenoid produces a magnetic field which enables the Inner
Detector to measure track momentum by track curvature. This solenoidal
magnetic field was measured using a rotating-arm mapping machine and, after
removing mapping machine effects, has been understood to the 0.05% level.
As tracking algorithms require the field strength at many different points,
the representation of this magnetic field in Athena (the ATLAS offline
software framework) can have a significant impact on the processing time for
these algorithms. We review the field models and mathematical techniques
used to decouple machine effects from real field features and evaluate the
performance of different field representations within Athena.
| Submitted on behalf of Collaboration (ex, BaBar, ATLAS) | ATLAS |
|---|
Authors
Dr
Paul Miyagawa
(University of Manchester)
Dr
Salvador Marti I Garcia
(Instituto de Fisica Corpuscular (IFIC) UV-CSIC)
Co-author
Dr
Jochen Schieck
(Max-Planck-Institut fuer Physik Muenchen)
