¥The correlations between
T0 counters observed in d+Au is troublesome. Crosstalk is clearly playing a role, but it is not clear
that it can explain all our observations.
¥The trouble with
individual time signals does not impact the T0 OR, which is what is being used
for the trigger,
¥The multiplicities in p+p
are much lower than the multiplicities in d+Au and for most events there will
be only one T0 counter firing. The
OR signal will thus carry the time information provided by this counter.
¥The individual times
should also be OK, except we might need to use different calibration
parameters, depending on the channels being hit.