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Open Charm Trigger in HLT Gaute Øvrebekk. Gaute Øvrebekk Universitetet i Bergen.
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Open Charm Trigger in HLT Gaute Øvrebekk Gaute Øvrebekk Universitetet i Bergen
* Decay chanel: D0 -> K- pi+ (3,83 ± 0,09 %) * Using the same approach as offline (Andrea Dainese) D0 Reconstruction: Track Array Cluster Finding ITS/TPC Split in neg. & pos. Track+ Single track cuts Track Finding TPC Online Tracking TPC Track Finding ITS (impact para. ordered) Neg. Track Array (impact para. ordered) pos. Track Array Vertex Finding Loop over and do cuts D0 Reconstruction D0 Candidates Gaute Øvrebekk Universitetet i Bergen
* Impact parameter > 50 µm * Distance to closest app. * Pt > 0,5 GeV/c * Invariant mass * Decay angle * Pointing angle Gaute Øvrebekk Universitetet i Bergen
Timing • TPC tracks + offline ITS tracking + D0 candidate search dN/dy Gaute Øvrebekk Universitetet i Bergen