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1818-331X (Print), 2074-0565 (Online) |
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Particles trajectories finding in the vertex detector of the CBM experiment
I. S. Kulakov1, I. V. Kisel2, M. V. Zyzak1
1Kyiv Taras Shevchenko National University, Kyiv, Ukraine
2GSI Helmholtz Centre for Heavy Ion Research, Darmstadt, Germany
Abstract: Particles trajectories search in the vertex detector is a basis of collision reconstruction of the CBM experiment (GSI, Germany). The requirements for a modern experiment with fixed target are very high, specifically: up to 107 collisions per second, up to 1000 charged particles in the detector, inhomogeneous magnetic field, about 85% additional fake combinatorial measurements in the detector, full on-line event reconstruction. Cellular automaton method is used to reconstruct charged particles trajectories. Description of the algorithm and results of tests are presented.
Keywords: CBM, heavy ions, cellular automaton, search of tracks.
References:1. Friman B., Hohne C., Knoll J. et al. The CBM Physics Book (Heidelberg: Springer, 2010) 1014 p. https://doi.org/10.1007/978-3-642-13293-3
2. Kisel I. Event reconstruction in the CBM experiment. Nucl. Instr. and Meth. A 566 (2006) 85. https://doi.org/10.1016/j.nima.2006.05.040
3. Gorbunov S., Kisel I. An analytic formula for track extrapolation in an inhomogeneous magnetic field. CBM-SOFT-note-2005-001 (18 March 2005) 16 p.
4. Gorbunov S., Kebschull U., Kisel I. et al. Fast SIMDized Kalman filter based track fit. Comp. Phys. Comm. 172 (2008) 374. https://doi.org/10.1016/j.cpc.2007.10.001