Event reconstruction in the CBM experiment

A typical central Au+Au collision in the CBM experiment (GSI, Germany) will produce up to 700 tracks in the inner tracker. The large track density together with the presence of a non-homogeneous magnetic field make reconstruction of events complicated. A cellular automaton method is used to reconstruct tracks in the inner tracker. Track and vertex fitting is done using the Kalman filter technique. A special analytic formula has been derived for fast track extrapolation in a non-homogeneous magnetic field. A standalone ring finding in the RICH detector is based on the elastic net method. Results of tests of the reconstruction procedure are presented