PowerPoint Presentation

Frank L. H. Wolfs

Department of Physics and Astronomy, University of Rochester

T0 Vertex Studies:
Comparing Spec Vertex with T0 OR Vertex

ĄThe T0 OR Vertex is obtained from the OR information obtained using TDC 8:

T0 OR Vertex = 29.979*((tExtra[19] - 311.87) - (tExtra[20] - 302.65))/2.0

ĄThe vertex resolution is 4.8 cm (1 s).

ĄThis implies a resolution of the T0 Ors of 225 ps (1 s). This resolution is most likely dominated by the alignment accuracy.