Speaker
Dr
Kirill Prokofiev
(University of Sheffield)
Description
In the harsh environment of the Large Hadron Collider at CERN (design
luminosity of 10^34 cm-2s-1) efficient reconstruction of the signal primary
vertex is crucial for many physics analyses. Described in this paper are
primary vertex reconstruction strategies implemented in the ATLAS software
framework Athena. The implementation of the algorithms follows a very
modular design based on object oriented C++ and use of abstract interfaces.
This guarantees the easy use and exchange of different vertex fitters and
finders which are considered for a given analysis. This modular approach
relies on a dedicated Event Data Model for vertex reconstruction. The data
model has been developed alongside with the reconstruction algorithms. Its
design is presented in detail. The performance of the implemented primary
vertex reconstruction algorithms has been studied on a variety of Monte
Carlo samples and results are presented.
| Submitted on behalf of Collaboration (ex, BaBar, ATLAS) | ATLAS Offline Computing |
|---|
Authors
Dr
Andreas Wildauer
(CERN)
Mr
Giacinto Piacquadio
(Albert-Ludwigs-Universität Freiburg)
Dr
Kirill Prokofiev
(University of Sheffield)
