2) Maury Goodman presented the case for Theseus (continued operation
of the Soudan 2 detector). The detector has had good operational
efficiency
for the past 5 years. It has been been an option for early NuMi
running, but
there is a strong committment to have Minos ready at the beginning,
and
Theseus is getting lost in the shuffle. While Theseus is only
20% of the
mass of Minos, it is more fine-grained, with gas tubes seperated by
1.2 mm of Iron. This gives it better trigger efficiency, and
some advantages
in detecting electrons and taus. It doesn't outperform Minos
in any area
(except it might see more "rock" muons), but Maury made a good case
that for a modest cost ($150K/year) it can confirm Minos with a complementary
detector, and add a bit to the precision of the measurements.
There is
currently in internal debate within Minos on whether they should go
forward with this proposal or concentrate exclusively on the
Minos detector.