SVT-TPC Vertex Correlation

From 417 events from Run st_physics_2261005_raw*.daq (Field off)

Fig 1. Svt vs TPC Primary vertex Correlations

Fig 1 Shows

Top Left: The Z of the reconstructed "grouper" SVT vertex vs Z of TPC vertex using evr.

Top Right: Z_svt - Z_tpc vs Z TPC

Bottom Left: Projection onto y axis of plot 2

There seems to be a slight offset between the SVT and TPC of ~1mm. Otherwise the correlation seems great.

For more information on this technique see here..

For more general Year 2001 studies see here

Helen Caines
Last modified: Mon Oct 22 10:09:58 EDT 2001