User name R. Michaels
Log entry time 04:41:36 on October16,2005
Entry number 157053
keyword=Dipole scan, downwardDipole scan, going DOWN in momentum. This will map out the
inelastics. We need these data for our rescattering model.
The "dipole detune algorithm" is to change P0, then put the
quads back to the normal current by hand. Later I realized
this was the wrong thing to do for this kind of scan (I don't
know what's wrong with me, I must be tired) so we did or
repeated a few runs with quads tracking with P0. Probably
doesn't matter much.
Percent ... P0L .... Run
-4% ...... 2.998 ... 2846 and 2847 (better PS).
Lost Left HRS controls. Reboot hareboot10.
02:47 Recovered L-HRS. Try again
-4 % ..... 2.998 ... 2848
-8 % ..... 2.873 ... 2849
-12 % .... 2.748 ... 2850
same (-12%) ........ 2851, better PS factors.
-16 % .... 2.624 ... 2852
-20 % .... 2.499 ... 2853 ... Here we let quads go with P0.
Repeat a run near delta resonance with quads going with P0.
-12 % .... 2.748 ... 2854, 55, and 56 (55 is junk, 56 = better PS).
Fig 1 shows the momentum spectrum for the overlapping runs.
The way this was plotted: the normalization of adjacent runs
was adjusted so that they smoothly joined where they overlapped.
Since we marched in 4% steps, each pair of runs overlapped.
I think one can see the delta resonance (its at the right place)
and there's not much else. The elastic peak is suppressed here.
FIGURE 1
