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IJAR
2006

Possibilistic clustering approach to trackless ring Pattern Recognition in RICH counters

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Possibilistic clustering approach to trackless ring Pattern Recognition in RICH counters
The pattern recognition problem in Ring Imaging CHerenkov (RICH) counters concerns the identification of an unknown number of rings whose centers and radii are assumed to be unknown. In this paper we present an algorithm based on the possibilistic approach to clustering that automatically finds both the number of rings and their position without any a priori knowledge. The algorithm has been tested on realistic Monte Carlo LHCb simulated events and it has been shown very powerful in detecting complex images full of rings. The tracking-independent algorithm could be usefully employed after a track based approach to identify remaining trackless rings. Key words: RICH counters, pattern recognition, possibilistic clustering. PACS: 29.40.Ka, 29.85.+c, 07.05.Mh
A. M. Massone, Léonard Studer, Francesco Ma
Added 12 Dec 2010
Updated 12 Dec 2010
Type Journal
Year 2006
Where IJAR
Authors A. M. Massone, Léonard Studer, Francesco Masulli
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