13-jan-2014 Some results for a GEM-based central detector A.Zinchenko, V.Vasendina, M.Kapishin VBLHEP, JINR, Dubna, Russia.

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Presentation transcript:

13-jan-2014 Some results for a GEM-based central detector A.Zinchenko, V.Vasendina, M.Kapishin VBLHEP, JINR, Dubna, Russia

13-jan-20141/12/14 Detector configuration (10 deg between stations)‏ 2A.Zinchenko Zone 1 Zone 3 Zone 2 Zone 4

13-jan-20141/12/14 Event sample 3A.Zinchenko UrQMD E lab = 4 GeV, b = 0 fm

13-jan-20141/12/14 Detector occupancy Detector occupancy 4A.Zinchenko Zone 4Zone 3 Zone 1Zone 2

13-jan-20141/12/14 Hyperons in central events Hyperons in central events (perfect proton identification)‏ 5A.Zinchenko 10k events100k events

13-jan-20141/12/14 Realistic clustering (  Charge = 0.5 mm)‏ 6A.Zinchenko 25k events

13-jan-20141/12/14 Single  7A.Zinchenko 5k events

13-jan-20141/12/14 Momentum resolution 8A.Zinchenko

13-jan-20141/12/14 Conclusions 9A.Zinchenko configuration with GEM does not look too bad; there are some things which potentially could improve the reconstruction performance: using errors of the reconstructed clusters during the tracking and using the cluster charge correlation from X and Y sides to reject ghost combinations – but both require much more work with CBM tracking code to implement them.