User name gilman
Log entry time 14:29:33 on August 5,1999
Entry number 24350
keyword=plans for statistics on this d(g,p)n point
I've looked over some statistics from the overnight runs.
We are taking about 1.2 M events / hour for gamma d,
and now should get an estimated error bar on Pn of about
0.13 for the 3 M events taken. with 1.5 + 3 + 6 inch carbon doors.
(There are 1 M events with thicker doors.) We would like to halve
the uncertainty ==> take ~ 9 M more events (~ 8 hours)
gamma d., for total 12 M
Radiator-out running should get ~1/2 as much time / 1/8 as much
statistics. We have 0.5 M T3's radiator out, we need 1 M more
d + radiator-out events (~ 3 hours).
For gamma - p, the raw T3 rate is about 1/3as much as gamma - d,
but also from the online replay it appears only 1/3 as many events reconstruct
well in this data. Thus we should measure gamma-p for about 1 M events,
- 150 k obtained = 850 k more (~ 2 more hours).
The radiator-out + proton running should be for about 150 k more events (2 hours).