21-25 May 2012
New York City, NY, USA
US/Eastern timezone

low momentum track finding in Belle 2

24 May 2012, 13:30
4h 45m
Rosenthal Pavilion (10th floor) (Kimmel Center)

Rosenthal Pavilion (10th floor)

Kimmel Center

Poster Event Processing (track 2) Poster Session


Jakob Lettenbichler (HEPHY Vienna, Austria) Moritz Nadler Rudi Frühwirth (Institut fuer Hochenergiephysik (HEPHY))


The Silicon Vertex Detector (SVD) of the Belle II experiment is a newly developed device with four measurement layers. Track finding in the SVD will be done both in conjunction with the Central Drift Chamber and in stand-alone mode. The reconstruction of very-low-momentum tracks in stand-alone mode is a big challenge, especially in view of the low redundancy and the large expected background. We describe two approaches for track finding in this domain, a cellular automaton and a combinatorial Kalman filter. Both methods are combined with a Hopfield network which finds an optimal subset of non-overlapping tracks. We present results on simulated data and compare the two methods in terms of efficiency, purity and speed
Student? Enter 'yes'. See http://goo.gl/MVv53 yes

Primary author

Jakob Lettenbichler (HEPHY Vienna, Austria)


Moritz Nadler Rudi Frühwirth (Institut fuer Hochenergiephysik (HEPHY))

Presentation Materials