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HK: Fachverband Physik der Hadronen und Kerne

HK 34: Postersitzung

HK 34.44: Poster

Thursday, March 13, 2008, 14:00–16:00, Poster C3

GENFIT - a Generic Track Reconstruction Toolkit — •Christian Höppner and Sebastian Neubert for the PANDA collaboration — Technische Universität München, Physik Department E18, 85748 Garching, Germany

Experiments in high energy physics use a combination of widely different detector systems to achieve an optimal measurement of particle trajectories. The software package GENFIT has been developed to provide a consistent treatment of track parameter estimation with hits from detectors providing different spatial information, e.g. strip projections, 3-D space points, drift distances to wires, etc. The concept is based on the idea of a full separation of parameterizations (hit-measurements and track models) from the algebra of regression algorithms. This implements the possibility to switch between different track propagation algorithms and detector geometries without changing the core fitting classes. Key components of the system are the Kalman filter and so-called virtual detector planes. An interface to the propagation package GEANE has also been realized. The poster illustrates the object-oriented architecture of the toolkit which uses generic programming techniques to realize the flexible and portable design. Some applications in the framework of the PANDA simulation studies are shown.

This work is supported by the BMBF and the EU (contract No. 515873-DS).