Frank L. H. Wolfs
Department of Physics and Astronomy, University of Rochester
T0 Vertex Studies:
The best way to determine time resolution.
¥The collision time, obtained from the T0 array, is equal to

¥tcol = (tT0N + tT0P)/2

¥The resolution of the collision time is equal to

¥sTcol = sT0/Ã2

¥The vertex position, obtained from the T0 array, is equal to

¥zvertex = c (tT0N - tT0P)/2

¥The resolution of the collision vertex is equal to

¥svertex = c sT0/Ã2 = c scol

¥We use svertex to determine sTcol.