These are the links for the various kinematic offsets:
1. Beam Spot Position:
i.Vertical spot position (Tanja Horn)
Vertical spot position (Chuncheng Xu)
ii.Horizontal spot position (Tanja Horn)
For reference:
BPM z-positions,
Superharp z-positions
NEED AN ELECTRONIC COPY OF THE SURVEY TO POST HERE
2. Elastic e+p offset determinations - FINAL:
Since the HMS isn't saturating as badly as the SOS, a good starting point is to
determine the HMS offsets in single arm data, then apply these offsets to coincidence
studies where the SOS offsets can be determined. (Apparently the nominal beam energies are good
enough.)
In all cases below, the effects of radiation, vertical beam position, and the W vs xpfp
correlation in the HMS have been taken into account.
i. Single arm HMS (Tanja Horn)
Results for W during Fpi II using new offsets
Relative to the nominal offsets, the new FpiII offsets yield a significant
improvement in the Spring03 results for W:
Spring03 results for W
The new FpiII offsets also work nicely for the 1999 dataset after the beam energy
is adjusted consistent with newer mapping data:
1999 results for W
Obsolete single-arm results (predates final offsets):
FpiII HMS runs
and misc. residual plots
Online 4.2 GeV,
Online 5.2 GeV,
Online 3.8 GeV,
Online 4.7 GeV
Aug 28, 2003, by Dave Mack