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Description...

Description...

Distribution of the number of good global tracks in the TPC per trigger; including pileup.

Distribution of reconstructed space points in TPC with respect to z-coordinate. There is a broad peak above the nominally flat background at z=0. This is intentional and is done in order to allow identification of post-trigger pileup events. Watch out for any other anamolous steps (could be a hot collider bunch) or unusual spikes or dips. The peaks just outside |z| = 200 cm are new in Run 10 and are OK (they are prompt hits on the TPC anode wires).

Fine scale distribution along the z-axis (from -50 to +50 cm) of the DCA points to the nominal beam line (z-axis, x=y=0) for all TPC global tracks. Peaks indicate probable locations of individual collision vertices.

Global track detector IDs for good tracks. Refer to: $STAR/StRoot/StEvent/StDetectorDefinitions.h for Detector ID codes. At the moment, the track topology map says there are SVT (2) and SSD (8) hits when there are actually PXL (27) and SST (36) hits.

Distribution of first fitted space point with respect to azimuthal angle (phi) for TPC-only global tracks. The solid (dashed) line is for the east (west) half of the TPC. These should be approximately equal and flat within statistics, except for the 12-sector structure.

Distribution of reconstructed space points in TPC with respect to azimuthal coordinate (phi) for east (solid line) and west (dashed line) halves. Should be flat except for the 12-fold sector structure or masked RDOs (as shown). Dead RDO's will produce dips and gaps; hot pads or FEE cards will produce spikes.

Distribution of reconstructed space points in TPC with respect to padrow number 1-45. Should display gradual fall-off; watch for anamolous spikes and dips. Missing RDO's cause drops in the distribution.