¥To investigate the
origin of the observed correlation we have looked at correlations between T0
and Ckv counters.
¥In this analysis we have
looked at the same events (T0N = 1 and T0P = 1).
¥The vertex is calculated
on the basis of the time difference between the T0 and the Ckv counters
(T0P/CkvN and T0N/CkvP) and compared to OctDeVertex.