Darmstadt 2016 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 14: Instrumentation III
HK 14.5: Talk
Monday, March 14, 2016, 17:30–17:45, S1/01 A3
Common barrel and forward CA tracking algorithm — •Pugach Mykhailo1,2,3, Sergey Gorbunov1,2, and Ivan Kisel1,2 for the PANDA collaboration — 1Goethe-Universität, Frankfurt — 2Frankfurt Institute for Advanced Studies, Frankfurt — 3KINR, Kyiv, Ukraine
There are complex detector setups which consist of barrel (cylindrical) and forward parts, and such systems require a special approach in the registered charged particles track finding procedure. Currently the tracking procedure might be performed in both parts of such detector independently from each other, but the final goal on this direction is a creation of a combined tracking, which will work in both parts of the detector simultaneously.
The basic algorithm is based on Kalman Filter (KF) and Cellular Automata (CA). And the tracking procedure in such a complex system is rather extraordinary as far as it requires 2 different models to describe the state vector of segments of the reconstructed track in the mathematical apparatus of the KF-algorithm. To overcome this specifics a mathematical apparatus of transition matrices must be developed and implemented, so that one can transfer from one track model to another. Afterwards the work of the CA is performed, which reduces to segments sorting, their union into track-candidates and selection of the best candidates by the chi-square criteria after fitting of the track-candidate by the KF.
In this report the algorithm, status and perspectives of such combined tracking are described.