Speaker
Oliver Frost
(DESY)
Description
With the upgraded electron-positron-collider facility, SuperKEKB and Belle II, the Japanese high energy research center KEK strives to exceed its own world record luminosity by a factor of 40.
To provide a solid base for the event reconstruction within the central drift chamber in the enhanced luminosity setup, a powerful track finding algorithm coping with the higher beam induced backgrounds is developed at DESY.
Pursing a bottom-up approach, which is less susceptible to the increased number of background hits compared to global event reconstruction techniques such as the Hough transformation and its successors, we present a generalization of the cellular automaton.
While maintaining the high execution speed by circumventing the combinatorial backtracking in the graph of local hit information and extrapolations naturally arising in bottom-up approaches, this so called weighted cellular automaton integrates the adaptiveness of the Hopfield network into the original algorithm.
Author
Oliver Frost
(DESY)
Co-author
Claus Kleinwort
(Deutsches Elektronen Synchrotron (DESY))
