The data taken during experiments E385 and E387, after being stored on 8mm
magnetic data tapes, were processed offline using computer facilities at The
Ohio State University. This ``replay'' consisted of essentially two parts:
1) The data were replayed in several passes using XSYS (mentioned at the end
of Chapter 
) to calibrate the necessary software offsets and
finally
produce a useful reduced data set; and 2) That reduced data set was
analyzed
using PAW (after conversion of the data to the ntuples used in PAW) to
apply the final cuts and obtain the appropriately gated spectra for further
analysis. This separation of reduction tasks has the advantage of being
able to
perform the bulk of the replay without concern for the final cuts. Then
it is possible to experiment with the final cuts in the later part of the
replay without experiencing the significant time penalty of re-analyzing
the entire raw data set. This became especially important in this
experiment because the experiment was performed so soon after the new INPOL
facility was built that the cuts associated with optimal efficiency had not
been
determined when this analysis was started. In fact, at this time, those
cuts are still not a settled issue, so it is necessary to have the reduced
data set, which can be replayed in a timely fashion, to keep up with
changes in the characterization of the detector. The detector
characterization will be discussed later in this chapter.