Hi
todays data, 10377-10384 10386-10389 10391 look much better than last two
days, in parrallel kinematics, Non-zero asymmetries are established
even with the little statistics accumulated so far:
Q2 A(today) 1.7kC A(22nd-23rd) 6.6kC
0.15 -0.11+-0.07 -0.009+-0.032
0.20 -0.27+-0.15 -0.064+-0.059
Pzz today looks nice at arround 0.70+-0.16.
Chi
On Wed, 25 Aug 2004, Townsend Zwart wrote:
> Brian,
> It would be useful to dig up the history of the current and voltage of
> the holding fields (long + trans) over the last two days. Thanks,
>
> TZ
>
> Chi Zhang wrote:
>
> >Hi, Just for record.
> >
> >in the last two days of D2 running, spin angle seemed to have drifted
> >to below 30 degrees. in fact could be very close to 20 degrees judging
> >from ed elastic asymmetries. the sympton is that asymmetries in Parallel
> >kinematics almost vanish.
> >
> >I am afraid this is less than optimal for Pzz measurement, T20 and maybe
> >Gen.
> >
> >To Shift takers: when running ed_xs.C, you can specify the spin angle by:
> >root ed_xs.C #### #### spinthd=<value>. theory curves for 20, 30, 32, 35,
> >37, 40, 45, 47, 48, 50 degrees are built in.
> >
> >Chi
> >
> >
> >
> >
> >
>
>
>
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