Fig. 1. The number of TPC primary tracks
Fig. 2. The number of good svt hits. Good = flag < 4
Fig. 3. Z Vertex from SVT (x axis) vs Z TPC. Units are cm
Fig. 4. Z SVT- Z Tpc. Black - all events, Red - N TPC primary > 10. The mean is now at -0.05cm (good) for both selections. The width is 0.28cm (0.24cm for the n primary > 10). So resolution is not dependant on the number of primaries - good.
Fig. 5. Z difference vs Z TPC
Fig. 7. OK doesn't belong here but I thought it looked good.(Jun now has MUCH nicer plots).
For more information on this technique see here..
For more general Year 2001 studies see here