000000303 001__ 303
000000303 005__ 20160805033908.0
000000303 037__ $$aBELLE2-CONF-PROC-2015-001
000000303 041__ $$aeng
000000303 100__ $$aTobias Schlüter
000000303 245__ $$aTrack Fitting in Belle II: the Genfit Library and its Performance
000000303 260__ $$a$$c2015-10-14
000000303 300__ $$a6
000000303 520__ $$aWe discuss track fitting as implemented in the Belle II experiment currently under construction at KEK in Tsukuba, Japan. Track fitting takes place at the interface of physics analysis and detector data, is essential to the tasks of detector calibration and alignment, and it also is an integral part of Belle II’s high-level trigger. To address this variety of tasks, the track-fitting software, initially based on the G ENFIT library, underwent significant redesign. The revised version aims at being experiment-independent and is now the default track-fitting software in the Belle II, PANDA, and SHiP experiments. It implements a variety of track-fitting algorithms, provides a data storage model which allows storage at different levels of detail and provides high-level operations on tracks such as combinations of tracks from different subdetectors. It provides visualization, and supports all commonly employed types of tracking detectors. It provides a Runge-Kutta type track extrapolation code with handling of energy loss and multiple scattering. It interfaces to the commonly used Millipede II software for detector calibration and alignment, and to the experiment-independent vertexing library RAVE.
000000303 6531_ $$atracking
000000303 6531_ $$agenfit
000000303 6531_ $$atrack fitting
000000303 6531_ $$areconstruction
000000303 6531_ $$ahlt
000000303 6531_ $$aonline
000000303 6531_ $$aoffline
000000303 8560_ $$ftobias.schlueter@physik.uni-muenchen.de
000000303 8564_ $$uhttps://docs.belle2.org/record/303/files/BELLE2-CONF-PROC-2015-001.pdf